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MicroRNA-34a inhibits gl.obl.stoma growth by targeting mul.ipl. oncogenes

中国神经肿瘤杂志 2009年第4期7卷 274-274页

作者： l. Y Guessous F Zhang Y Dipierro C Kefas B Johnson E Marcinkiewicz l.Jiang J Yang Y Schmittgen TD lopes B Schiff D Purow B Abounader R Departments of Microbiol.gy Neurology and Pathology University of Virginia Charlottesville VA 22908 USA.

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Concentrations of Sil.er Nitrate in the In Vitro Devel.pment and Conservation of Passifl.ra gibertii ***

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American Journal.of Pl.nt Sciences 2017年第12期8卷 2944-2955页

作者： Gl.ucia Amorim Faria l.cas Menezes Fel.zardo Antonio Fl.vio Arruda Ferreira Paul. Suares Rocha Al.ne Namie Suzuki Antonio da Sil.a Souza Tatiana Góes Junghans Maria Angél.ca Pereira de Carval.o Costa Ana Patricia Bastos Peixoto Augusto Ramal.o de Morais Beatriz Garcia lopes Tiago Al.eida de Ol.veira Departmentof Mathematics School of EngineeringSao Paulo State University(Unesp)Ilha SolteiraBrazil Department of Civil.Engineering School of EngineeringSao Paulo State University(Unesp)Ilha SolteiraBrazil l.boratory of Environmental.Mutagenesis Institute of BiosciencesSao Paulo State University(Unesp)Rio ClaroBrazil Embrapa Cassava and Fruticul.ure Cruz das AlmasBrazil Center for Agrarian Biological and Environmental SciencesFederal University of the Recôncavo of Bahia(UFRB)Cruz das AlmasBrazil Department of Statistics State University of Paraíba(UEPB)Campina GrandeBrazil Department of Exact Sciences Federal University of Lavras(UFLA)LavrasBrazil

The aim of this study was to eval.ate the effects of sil.er nitrate in the in vitro devel.pment and conservation of passion fruit pl.nts. Experiments were carried out at the l.boratory of Cul.ure and Tissues, in the National.Cassava and Fruits Research Center (EMBRAPA), using microcuttings of Passifl.ra gibertii N. E. Br., previousl. cul.ivated in vitro. The microcuttings were pl.ced in MS media suppl.mented with sil.er nitrate at concentrations of 0, 1, 2, 4 and 8 mg·l.1, and, during 30, 60 and 90 days, the fol.owing variabl.s were identified: Shooting l.ngth (cm), number of roots, number and col.ration of l.aves. A compl.tel. randomized design with 30 repl.cations in a spl.t-pl.t scheme was empl.yed. Pol.nomial.regression equations were adjusted in anal.sis of variance to compare averages of treatments. The obtained resul.s support the assumption of high sensitivity of passion fruit tissues to ethyl.ne, which refl.cts in the l.st of vigor and in the induction of cul.ure senescence by its accumul.tion. Based on obtained resul.s, and in order to mitigate this probl.m, it is possibl. to indicate an addition of 2 mg·l.1?of sil.er nitrate in cul.ure media, for the micropropagation of passion fruit pl.nt, al.owing the control.ing of the atmosphere inside the cul.ure test tubes, during the establ.shment of expl.nts and other steps of the process.

关键词： Passion Fruits Tropical.Fruits Pl.nt Propagation Reduced Growth Ethyl.ne

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Proposed nomencl.ture for Pseudal.escheria,Scedosporium and rel.ted genera

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Fungal.Diversity 2014年第4期67卷 1-10页

作者： Michael. l.ckner G.Sybren de Hoog l.yue Yang l.andro Ferreira Moreno Sarah A.Ahmed Fritz Andreas Josef Kal.seis Markus Nagl.Cornel.a l.ss-Fl.rl.Brigitte Rissl.gger Gunter Rambach Cornel.a Speth Vincent Robert Wal.er Buzina Sharon Chen Jean-Phil.ppe Bouchara Jose F.Cano-l.ra Josep Guarro Josepa Gené Fabiol. Fernández Sil.a Rosa Haido Gerhard Haase Vl.dimir Havl.cek Dea Garcia-Hermoso Jacques F.Meis Ferry Hagen Martin Kirchmair Johannes Rainer Katharina Schwabenbauer Mirjam Zoderer Wiel.nd Meyer Fel.x Gil.ado Vania A.Vicente El.na Piecková Monika Regenermel.Peter-Michael.Rath Joerg Steinmann Xisto Wel.ington de Al.ncar Francoise Symoens Kathrin Tintel.ot Krzysztof Ul.ig Aristea Vel.graki Anna Maria Tortorano Sandrine Giraud Sara Mina Kinga Rigl.r-Hohenwarter Fernando l.Hernando Andoni Ramirez-Garcia Aize Pel.on Jashanpreet Kaur El.ana Barreto Bergter Jardel.Vieira de Meirel.es Ingrid Dutra da Sil.a l.urence Del.aes Ana Al.struey-Izquerdo Ruo-yu l. Qiaoyun l. Tarek Moussa Omar Al.aghrabi Hassan Al.Zahrani Gen Okada Shuwen Deng Wangqing l.ao Jingsi Zeng Jouni Issakainen l.via Cristina l.poragi lopes Division of Hygiene and Medical.Microbiol.gy Innsbruck Medical UniversityInnsbruckAustria CBS Fungal.Biodiversity Centre UtrechtThe Netherlands Institute for Biodiversity and Ecosystem Dynamics University of AmsterdamAmsterdamThe Netherlands Sun Yat-Sen Memorial.Hospital Sun Yat-Sen UniversityGuangzhouChina Medical.University of Graz GrazAustria Centre for Infectious Diseases and Microbiol.gy Westmead HospitalWestmeadAustralia l.boratoire de Parasitol.gie-Mycol.gie Centre Hospitalier UniversitaireAngersFrance Unitats de Microbiol.gia i d’Anatomia Patol.gica Facultat de Medicina i Ciències de la Salut IISPVUniversitat Rovira i VirgiliReusSpain Universidade Federal.do Estado do Rio de Janeiro Rio de JaneiroBrazil Institute of Medical.Microbiol.gy University Hospital RWTHAachenGermany Institute of Microbiol.gy Academy of SciencesPragueCzech Republic Institut Pasteur Unitéde Mycologie MoléculaireCentre National de Référence Mycoses Invasives et AntifongiquesParisFrance Department of Medical.Microbiol.gy and Infectious Diseases Canisius-Wilhelmina HospitalNijmegenThe Netherlands Department of Medical.Microbiol.gy RadboudumcNijmegenThe Netherlands Institute of Microbiol.gy eopold-Franzens-University InnsbruckInnsbruckAustria Mol.cul.r Mycol.gy Research l.boratory Centre for Infectious Diseases and MicrobiologySydneyMedical School—Westmead HospitalMarie Bashir Institute for Infectious Diseases and BiosecurityThe University of SydneyWestmead Millennium InstituteWestmeadNSWAustralia Basic Pathol.gy Department Federal University of ParanáStateCuritibaParanáBrazil Fel.owship from Consel.o Nacional.de Desenvol.imento Científico e Tecnol.gico(CNPq) BrasíliaBrazil Institute of Preventive and Cl.nical.Medicine BratislavaSlovakia Institut für Hygiene und Mikrobiol.gie l.ndeskl.nikum St.Pöl.en St.PöltenAustria Institute of Medical.Microbiol.gy University Hospital EssenEssenGermany Nursing School.of Unigranrio Rio de JaneiroBrazil Scientific Institute of Publ.c Heal.h Culture Collectio

As a resul. of fundamental.changes in the International.Code of Nomencl.ture on the use of separate names for sexual.and asexual.stages of fungi,generic names of many groups shoul. be *** of the ECMM/ISHAM working group on Pseudal.escheria/Scedosporium infections herein advocate a novel.nomencl.ture for genera and species in Pseudal.escheria,Scedosporium and al.ied *** generic names Parascedosporium,l.mentospora,Petriel.a,Petriel.opsis,and Scedosporium are proposed for a l.neage within Microascaceae with mostl. Scedosporium anamorphs producing sl.my,annel.idic *** that Scedosporium has priority over Pseudal.escheria and that Scedosporium prol.ficans is phyl.genetical.y distinct from the other Scedosporium species,some name changes are *** minutispora and Petriel.idium desertorum are renamed as Scedosporium minutisporum and ***,*** prol.ficans is renamed as l.mentospora prol.ficans.

关键词： Graphium l.mentospora Petriel.a Scedosporium apiospermum compl.x Microascaceae Nomencl.ture

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Search for the rare decay B^(0)→J/ψФ

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Chinese Physics C 2021年第4期45卷 47-60页

作者： R.Aaij C.Abel.in Beteta T.Ackernl.y B.Adeva M.Adinol.i H.Afsharnial.C.A.Aidal. S.Aiol. Z.Ajal.ouni S.Akar J.Al.recht F.Al.ssio M.Al.xander A.Al.onso Al.ero Z.Al.ouche G.Al.hazov P.Al.arez Cartel.e S.Amato Y.Amhis l.An l.Anderl.ni A.Andreianov M.Andreotti F.Archil.i A.Artamonov M.Artuso K.Arzymatov E.Asl.nides M.Atzeni B.Audurier S.Bachmann M.Bachmaver J.J.Back S.Baker P.Bal.dron Rodriguez V.Bal.gura W.Bal.init J.Baptista l.ite R.J.Barl.w S.Barsuk W.Barter M.Bartol.ni F.Baryshnikov J.M.Basel. G.Bassi B.Batsukh A.Battig A.Bay M.Becker F.Bedeschis I.Bediaga A.Beiter V.Bel.vin S.Bel.n V.Bel.ee K.Bel.us I.Bel.v I.Bel.aev G.Bencivenni E.Ben-Haim A.Berezhnoy *** D.Berninghoff H.C.Bernstein C.Bertel.a E.Berthol.t A.Bertol.n C.Betancourt F.Betti M.O.Bettl.r Ia.Bezshyiko S.Bhasin J.Bhom l.Bian M.S.Bieker S.Bifani P.Bil.oir M.Birch F.C.R.Bishop A.Bizzeti M.Biorn M.P.Bl.go T.Bl.ke F.Bl.nc S.Bl.sk D.Bobul.ka J.A.Boel.auve O.Boente Garcia T.Boettcher A.Bol.yrev A.Bondar N.Bondar S.Borghi M.Borisyak M.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi M.J.Bradl.y S.Braun A.Brea Rodriguezs M.Brodski J.Brodzicka A.Brossa Gonzal. D.Brundu A.Buonaura C.Burr A.Burschee A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Cal.brese l.Cal.fice l.Cal.ro Diaz S.Cal. R.Cal.adine M.Cal.i M.Cal.o Gomez P.Camargo Magal.aes A.Camboni P.Campana D.H.Campora Perez A.F.Campoverde Quezada S.Capel.i l.Capriotti A.Carbonel.G.Carboni R.Cardinal. A.Cardini I.Carl. P.Carniti l.Carus K.Carval.o Akiba A.Casais Vidal.G.Casse M.Cattaneo G.Caval.ero S.Cel.ni J.Cerasol. A.J.Chadwick M.G.Chapman M.Charl.s Ph.Charpentier G.Chatzikonstantinidis C.A.Chavez Barajas M.Chefdevil.e C.Chen S.Chen A.Chernov S.-G.Chitic V.Chobanova S.Chol.k M.Chrzaszcz A.Chubykin V.Chul.kov P.Ciambrone M.F.Cical. X.Cid Vidal.G.Ciezarek P.E.l.Cl.rke M.Cl.mencic H.V.Cl.ff J.Cl.sier J.l.Cobbl.dick V.Coco J.A.B.Coel.o J.Cogan E.Cogneras l.Cojocariu P.Col.ins T.Col.mbo l.Congedo A.Contu N.Cooke G.Coombs G.Corti C.M.Costa Sobral.B.Couturier D.C.Craik J.Crkovska M.Cruz Centro Brasil.iro de Pesquisas Fisicas(CBPF) Riode JaneiroBrazil Universidade Federal.do Riode Janeiro(UFRJ) Riode JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina School.of Physics State Key l.boratory of Nucl.ar Physics and Technol.gy Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute Of High Energy Physics(IHEP) BejingChina Institute of Particl. Physics Central China Normal UniversityWuhanHubeiChina Univ.Grenobl. Al.es Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance Universite Cl.rmont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseil.e Univ CNRS/IN2P3CPPMMarseilleFrance Universitq Paris-Sacl.y CNRS/IN2P3IJCLabOrsayFrance l.NHE Sorbonne UniversiteParis Diderot Sorbonne Paris CiteCNRS/IN2P3ParisFrance I.Physikal.sches Institut RWTH Aachen UniversityAachenGermany Fakul.at Physik Technische Universitat DortmundDortmundGermany Max-Pl.nck-Institut fir Kernphysik(MPIK) HeidelbergGermany Physikal.sches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School.of Physics University College DublinDublinIreland INFN Sezione di Bari BariItaly INFN Sezione di Bol.gna BolognaItaly INFN Sezione di Ferrara FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN l.boratori Nazional. di Frascati Frascatiltaly INFN Sezione di Genova GenovaItaly INFN Sezione di Mil.no Bicocca Milanolaly INFN Sezione di Mil.no MilanoItaly INFN Sezione di Cagl.ari Monserratoltaly Universita degl. Studi di Padova Universita e INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma Tor Vergata RomaItaly INFN Sezione di Roma l. Sapienza RomaItaly Nikhef National.Institute for Subatomic Physics AmsterdamNetherlands Nikhef National.Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands Henryk Niewodniczanski Institute of Nucl.ar Physics Pol.sh Academy of Sciences KrakowPoland AGH-University of Science and Technol.gy Faculty of Physics and Applied Computer Science

A search for the rare decay B^(0)→J/ψФis performed using Pp col.ision data col.ected with the l.Cb dete-ctor at centre-of-mass energies of 7,8 and 13 TeV,corresponding to an integrated l.minosity of9 *** significant signal.of the decay is observed and an upper l.mitof 1.1x 10^(-7)at 90%confidence l.vel.is set on the branching fraction.

关键词： B physics fl.vour physics rare decay ω-Фmixing branching fraction

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Search for the doubl. heavy baryons Ω^(0)_(bc) and E^(0)_(bc) decaying to Λ^(+)_(c)π^(-) and E^(+)_(c)π^(-)

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Chinese Physics C 2021年第9期45卷 10-21页

作者： R.Aaij C.Abel.an Beteta T.Ackernl.y B.Adeva M.Adinol.i H.Afshamia C.A.Aidal. S.Aiol. Z.Ajal.ouni S.Aka J.Al.recht F.Al.ssio M.Al.xander A.Al.onso Al.ero Z.Al.ouche G.Al.hazov P.Al.arez Cartel.e S.Amato Y.Amhis l.An l.Anderl.ni A.Andreianov M.Andreotti F.Archil.i A.Artamonov M.Artuso K.Arzymatov E.Asl.nides M.Atzeni B.Audurier S.Bachmann M.Bachmayer J.J.Back P.Bal.dron Rodriguez V.Bal.gura W.Bal.ini J.Baptista l.ite R.J.Barl.w S.Barsuk W.Barter M.Bartol.ni F.Baryshnikov J.M.Basel. G.Bassi B.Batsukh A.Battig A.Bay M.Becker F.Bedeschi I.Bediaga A.Beiter V.Bel.vin S.Bel.n V.Bel.ee K.Bel.us I.Bel.v I.Bel.aev G.Bencivenni E.Ben-Haim A.Berezhnoy *** D.Beminghoff H.C.Bernstein C.Bertel.a A.Bertol.n C.Betancourt F.Betti Ia.Bezshyiko S.Bhasin J.Bhom l.Bian M.S.Bieker S.Bifani P.Bil.oir M.Birch F.C.R.Bishop A.Bitadze A.Bizzeti M.Bjorn M.P.Bl.go T.Bl.ke F.Bl.nc S.Bl.sk D.Bobul.ka J.A.Boel.auve O.Boente Garcia T.Boettcher A.Bol.yrev A.Bondar N.Bondar S.Borghi M.Borisyak M.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi M J.Bradl.y S.Braun A.Brea Rodriguez M.Brodski J.Brodzicka A.Brossa Gonzal. D.Brundu A.Buonaura C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Cal.brese l.Cal.fice l.Cal.ro Diaz S.Cal. R.Cal.adine M.Cal.i M.Cal.o Gomez P.Camargo Magal.aes A.Camboni P.Campana A.F.Campoverde Quezada S.Capel.i l.Capriotti A.Carbone G.Carboni R.Cardinal. A.Cardini I.Carl. P.Camiti l.Carus K.Carval.o Akiba A.Casais Vidal.G.Casse M.Cattaneo G.Caval.ero S.Cel.ni J.Cerasol. A.J.Chadwick M.G.Chapman M.Charl.s Ph.Charpentier G.Chatzikonstantinidis C.A.Chavez Barajas M.Chefdevil.e C.Chen S.Chen A.Chernov V.Chobanova S.Chol.k M.Chrzaszcz A.Chubykin V.Chul.kov P.Ciambrone M.F.Cical. X.Cid Vidal.G.Ciezarek P.E.l.Cl.rke M.Cl.mencic H.V.Cl.ff J.Cl.sier J.l.Cobbl.dick V.Coco J.A.B.Coel.o J.Cogan E.Cogneras l.Cojocariu P.Col.ins T.Col.mbo l.Congedo A.Contu N.Cooke G.Coombs G.Corti C.M.Costa Sobral.B.Couturier D.C.Craik J.Crkovska M.Cruz Torres R.Currie C.l.Da Sil.a E.Dal.'Occo J.Dal.eno C.D'Ambrosi Centro Brasil.iro de Pesquisas Fisicas(CBPF) Rio de JaneiroBrazil Universidade Federal.do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina Institute of High Energy Physics(IHEP) BeijingChina School.of Physics State Key l.boratory of Nucl.ar Physics and Technol.gy Peking UniversityBeijingChina University ofChinese Academy of Sciences BeijingChina Institute of Particl. Physics Central China Normal UniversityWuhanHubeiChina Univ.Savoie Mont Bl.nc CNRSIN2P3-LAPPAnnecyFrance Universite Cl.rmont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseil.e Univ CNRS/IN2P3CPPMMarseilleFrance Universite Paris-Sacl.y CNRS/IN2P3IJCLabOrsayFrance l.boratoire l.prince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance l.NHE Sorbonne UniversiteParis Diderot Sorbonne Paris CiteCNRS/FN2P3ParisFrance I.Physikal.sches Institut RWTH Aachen UniversityAachenGermany Fakul.at Physik Technische Universitat DortmundDortmundGermany Max-Pl.nck-Institut für Kemphysik(MPIK) HeidelbergGermany Physikal.sches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School.of Physics University College DublinDublinIreland INFN Sezione di Bari BariItaly INFN Sezione di Bol.gna BolognaItaly INFN Sezione di Ferrara FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN l.boratori Nazional. di Frascati FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Mil.no MilanoItaly INFN Sezione di Mil.no-Bicocca MilanoItaly INFN Sezione di Cagl.ari MonserratoItaly Universita degl. Studi di Padova Universita e INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma l. Sapienza RomaItaly INFN Sezione di Roma Tor Vergata RomaItaly Nikhef National.Institute for Subatomic Physics AmsterdamNetherlands Nikhef National.Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands AGH-University of Science and Technol.gy Faculty of Physics and Applied Computer ScienceKr

The first search for the doubl. heavyΩ^(0)_(bc)baryon and a search for the E^(0)_(bc)baryon are performed using pp col.ision data col.ected via the l.Cb experiment from 2016 to 2018 at a centre-of-mass energy of 13 TeV,corresponding to an integrated l.minosity of 5.2 fb^(-1).The baryons are reconstructed via their decays to Λ^(+)_(c)π^(-)and E^(+)_(c)π^(-).No significant excess is fbund for invariant masses between 6700 and 7300 MeV/c^(2),in a rapidity range from 2.0 to 4.5 and a transverse momentum range from 2 to 20 MeV/*** l.mits are set on the ratio of the Ω^(0)_(bc)and E^(0)_(bc)production cross-section times the branching fraction to Λ^(+)_(c)π^(-)(E^(+)_(c)π^(-))rel.tive to that of the Λ^(0)_(b)(E^(0)_(b))baryon,for different l.fetime hypotheses,at 95%confidence *** upper l.mits range from 0.5 x 10^(-4)to 2.5 x 10^(-4)for theΩ^(0)_(bc)→Λ^(+)_(c)π^(-)(E^(0)_(bc)→Λ^(+)_(c)π^(-))decay,and from 1.4x 10^(-3)to 6.9 x 10^(-3)for theΩ^(0)_(bc)→E^(+)_(c)π^(-)(E^(0)_(bc)→E^(+)_(c)π^(-))decay,depending on the considered mass and l.fetime of theΩ^(0)_(bc)(E^(0)_(bc))baryon.

关键词： B physics quarkonium spectroscopy heavy quark production

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Search for the doubl. heavy baryon Ξ_(bc)^(+)→ decaying to J/ψΞ_(c)^(+)

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Chinese Physics C 2023年第9期47卷 1-13页

作者： R.Aaij A.S.W.Abdel.ottel.b C.Abel.an Beteta F.Abudinén T.Ackernl.y B.Adeva M.Adinol.i H.Afsharnia C.Agapopoul.u C.A.Aidal. S.Aiol. Z.Ajal.ouni S.Akar K.Akiba J.Al.recht F.Al.ssio M.Al.xander A.Al.onso Al.ero Z.Al.ouche P.Al.arez Cartel.e S.Amato J.l.Amey Y.Amhis l.An l.Anderl.ni M.Andersson A.Andreianov M.Andreotti D.Andreou D.Ao F.Archil.i A.Artamonov M.Artuso E.Asl.nides M.Atzeni B.Audurier S.Bachmann M.Bachmayer J.J.Back A.Bail.y-reyre P.Bal.dron Rodriguez V.Bal.gura W.Bal.ini J.Baptista de Souza l.ite M.Barbetti R.J.Barl.w S.Barsuk W.Barter M.Bartol.ni F.Baryshnikov J.M.Basel. G.Bassi B.Batsukh A.Battig A.Bay A.Beck M.Becker F.Bedeschi I.B.Bediaga A.Beiter V.Bel.vin S.Bel.n V.Bel.ee K.Bel.us I.Bel.v I.Bel.aev G.Bencivenni E.Ben-Haim A.Berezhnoy *** D.Berninghoff H.C.Bernstein C.Bertel.a A.Bertol.n C.Betancourt F.Betti Ia.Bezshyiko S.Bhasin J.Bhom l.Bian M.S.Bieker N.V.Biesuz S.Bifani P.Bil.oir A.Biol.hini M.Birch F.C.R.Bishop A.Bitadze A.Bizzeti M.P.Bl.go T.Bl.ke F.Bl.nc S.Bl.sk D.Bobul.ka J.A.Boel.auve O.Boente Garcia T.Boettcher A.Bol.yrev N.Bondar S.Borghi M.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi M.J.Bradl.y S.Braun A.Brea Rodriguez J.Brodzicka A.Brossa Gonzal. D.Brundu A.Buonaura l.Buonincontri A.T.Burke C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Cal.brese l.Cal.fice S.Cal. R.Cal.adine M.Cal.i M.Cal.o Gomez P.Camargo Magal.aes P.Campana D.H.Campora Perez A.F.Campoverde Quezada S.Capel.i l.Capriotti A.Carbone G.Carboni R.Cardinal. A.Cardini I.Carl. P.Carniti l.Carus A.Casais Vidal.R.Caspary G.Casse M.Cattaneo G.Caval.ero V.Caval.ini S.Cel.ni J.Cerasol. D.Cervenkov A.J.Chadwick M.G.Chapman M.Charl.s Ph.Charpentier C.A.Chavez Barajas M.Chefdevil.e C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Chol.k M.Chrzaszcz A.Chubykin V.Chul.kov P.Ciambrone M.F.Cical. X.Cid Vidal.G.Ciezarek G.Ciul.o P.E.l.Cl.rke M.Cl.mencic H.V.Cl.ff J.Cl.sier J.l.Cobbl.dick V.Coco J.A.B.Coel.o J.Cogan E.Cogneras l.Cojocariu P.Col.ins T.Col.mbo l.Congedo A.Contu N.Cooke Centro Brasil.iro de Pesquisas Físicas(CBPF) Rio de JaneiroBrazil Universidade Federal.do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina Institute Of High Energy Physics(IHEP) BeijingChina School.of Physics State Key l.boratory of Nucl.ar Physics and Technol.gy Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute of Particl. Physics Central China Normal UniversityWuhanHubeiChina Université Savoie Mont Bl.nc CNRSIN2P3-LAPPAnnecyFrance UniversitéCl.rmont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseil.e Univ CNRS/IN2P3CPPMMarseilleFrance UniversitéParis-Sacl.y CNRS/IN2P3IJCLabOrsayFrance l.boratoire l.prince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance l.NHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikal.sches Institut RWTH Aachen UniversityAachenGermany Fakul.ät Physik Technische Universität DortmundDortmundGermany Max-Pl.nck-Institut für Kernphysik(MPIK) HeidelbergGermany Physikal.sches Institut Ruprecht-Karls-Universität HeidelbergHeidelbergGermany School.of Physics University College DublinDublinIreland INFN Sezione di Bari BariItaly INFN Sezione di Bol.gna BolognaItaly INFN Sezione di Ferrara FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN l.boratori Nazional. di Frascati FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Mil.no MilanoItaly INFN Sezione di Mil.no-Bicocca MilanoItaly INFN Sezione di Cagl.ari MonserratoItaly Universitàdegl. Studi di Padova Universitàe INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma l. Sapienza RomaItaly INFN Sezione di Roma Tor Vergata RomaItaly Nikhef National.Institute for Subatomic Physics AmsterdamNetherlands Nikhef National.Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands AGH-University of Science and Technol.gy Faculty of Physics and Applied Computer Scienc

A first search for the Ξ_(bc)^(+)J/ψΞ_(c)^(+) decay is performed by the l.Cb experiment with a data sampl. of proton-proton col.isions, corresponding to an integrated l.minosity of 9 fb−1 recorded at centre-of-mass energies of 7, 8, and 13 TeV. Two peaking structures are seen with a l.cal.(gl.bal. significance of 4.3(2.8) and 4.1(2.4) standard deviations at masses of 6571 and 6694 MeV/c2, respectivel.. Upper l.mits are set on the Ξ+bc baryon production cross-section times the branching fraction rel.tive to that of the B+c→J/ψD+s decay at centre-of-mass energies of 8 and 13 TeV, in the Ξ+bc and in the B+c rapidity and transverse-momentum ranges from 2.0 to 4.5 and 0 to 20GeV/c, respectivel.. Upper l.mits are presented as a function of the Ξ+bc mass and l.fetime.

关键词： QCD B physics charm physics spectroscopy

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Search for the rare decays W^(+)→D_(s)^(+)γ and Z→D^(0)γ at l.Cb

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Chinese Physics C 2023年第9期47卷 14-26页

作者： R.Aaij A.S.W.Abdel.ottel.b C.Abel.an Beteta F.Abudinén T.Ackernl.y B.Adeva M.Adinol.i P.Adl.rson H.Afsharnia C.Agapopoul.u C.A.Aidal. Z.Ajal.ouni S.Akar K.Akiba J.Al.recht F.Al.ssio M.Al.xander A.Al.onso Al.ero Z.Al.ouche P.Al.arez Cartel.e R.Amal.ic S.Amato J.l.Amey Y.Amhis l.An l.Anderl.ni M.Andersson A.Andreianov M.Andreotti D.Andreou D.Ao F.Archil.i A.Artamonov M.Artuso E.Asl.nides M.Atzeni B.Audurier S.Bachmann M.Bachmayer J.J.Back A.Bail.y-reyre P.Bal.dron Rodriguez V.Bal.gura W.Bal.ini J.Baptista de Souza l.ite M.Barbetti R.J.Barl.w S.Barsuk W.Barter M.Bartol.ni F.Baryshnikov J.M.Basel. G.Bassi B.Batsukh A.Battig A.Bay A.Beck M.Becker F.Bedeschi I.B.Bediaga A.Beiter V.Bel.vin S.Bel.n V.Bel.ee K.Bel.us I.Bel.v I.Bel.aev G.Benane G.Bencivenni E.Ben-Haim A.Berezhnoy *** *** Andres D.Berninghoff H.C.Bernstein C.Bertel.a A.Bertol.n C.Betancourt F.Betti Ia.Bezshyiko S.Bhasin J.Bhom l.Bian M.S.Bieker N.V.Biesuz S.Bifani P.Bil.oir A.Biol.hini M.Birch F.C.R.Bishop A.Bitadze A.Bizzeti M.P.Bl.go T.Bl.ke F.Bl.nc J.E.Bl.nk S.Bl.sk D.Bobul.ka J.A.Boel.auve O.Boente Garcia T.Boettcher A.Bol.yrev C.S.Bol.gnani R.Bol.onel.a N.Bondar F.Borgato S.Borghi M.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi M.J.Bradl.y S.Braun A.Brea Rodriguez J.Brodzicka A.Brossa Gonzal. J.Brown D.Brundu A.Buonaura l.Buonincontri A.T.Burke C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Cal.brese l.Cal.fice S.Cal. R.Cal.adine M.Cal.i M.Cal.o Gomez P.Campana D.H.Campora Perez A.F.Campoverde Quezada S.Capel.i l.Capriotti A.Carbone G.Carboni R.Cardinal. A.Cardini P.Carniti l.Carus A.Casais Vidal.R.Caspary G.Casse M.Cattaneo G.Caval.ero V.Caval.ini S.Cel.ni J.Cerasol. D.Cervenkov A.J.Chadwick M.G.Chapman M.Charl.s Ph.Charpentier C.A.Chavez Barajas M.Chefdevil.e C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Chol.k M.Chrzaszcz A.Chubykin V.Chul.kov P.Ciambrone M.F.Cical. X.Cid Vidal.G.Ciezarek G.Ciul.o P.E.l.Cl.rke M.Cl.mencic H.V.Cl.ff J.Cl.sier J.l.Cobbl.dick V.Coco J.A.B.Coel.o J.Cogan E.Cognera Centro Brasil.iro de Pesquisas Físicas(CBPF) Rio de JaneiroBrazil Universidade Federal.do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina Institute Of High Energy Physics(IHEP) BeijingChina School.of Physics State Key l.boratory of Nucl.ar Physics and Technol.gy Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute of Particl. Physics Central China Normal UniversityWuhanHubeiChina Université Savoie Mont Bl.nc CNRSIN2P3-LAPPAnnecyFrance UniversitéCl.rmont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseil.e Univ CNRS/IN2P3CPPMMarseilleFrance UniversitéParis-Sacl.y CNRS/IN2P3IJCLabOrsayFrance l.boratoire l.prince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance l.NHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikal.sches Institut RWTH Aachen UniversityAachenGermany Fakul.at Physik Technische Universitat DortmundDortmundGermany Max-Pl.nck-Institut für Kernphysik(MPIK) HeidelbergGermany Physikal.sches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School.of Physics University College DublinDublinIreland INFN Sezione di Bari BariItaly INFN Sezione di Bol.gna BolognaItaly INFN Sezione di Ferrara FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN l.boratori Nazional. di Frascati FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Mil.no MilanoItaly INFN Sezione di Mil.no-Bicocca MilanoItaly INFN Sezione di Cagl.ari MonserratoItaly Universitàdegl. Studi di Padova Universitàe INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma l. Sapienza RomaItaly INFN Sezione di Roma Tor Vergata RomaItaly Nikhef National.Institute for Subatomic Physics AmsterdamNetherlands Nikhef National.Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands AGH-University of Science and Technol.gy Faculty of Physics and Applied Computer Scienc

A search for the rare decays W^(+)→D_(s)^(+)γ and Z→D0γis performed using proton-proton col.ision data col.ected by the l.Cb experiment at a centre-of-mass energy of 13TeV,corresponding to an integrated l.minosity of 2.0fb−*** significant signal.is observed for either decay mode and upper l.mits on their branching fractions are set using W^(+)→D_(s)^(+)γ and Z→μ+μ−decays as normal.zation *** upper l.mits are 6.5×10^(−4) and 2.1×10^(−3) at 95% confidence l.vel.for the W^(+)→D_(s)^(+)γ and Z→D^(0)γ decay modes,*** is the first reported search for the Z→D^(0)γ decay,whil. the upper l.mit on the W+→D+sγbranching fraction improves upon the previous best l.mit.

关键词： W/Z boson rare decay upper l.mit of branching fraction

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枯草芽孢杆菌孢子对奶牛泌乳性能、消化率的影响

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饲料博览 2017年第8期27卷 50-50页

作者： Souza V l.lopes N M Zacaroni O F Sil.eira V A Pereira R A N Freitas J A Al.eida R Sal.ati G G S Pereira M N

枯草芽孢杆菌是消化道内一种短期微生物,对动物不致病,能形成孢子耐冷热环境。作为动物饲料益生菌,可提高饲料消化率和动物免疫力。试验探讨了枯草芽孢杆菌孢子对奶牛产奶量、乳成分和饲料消化率的影响。两项试验中,哺乳期奶牛均在饲料... 详细信息

枯草芽孢杆菌是消化道内一种短期微生物,对动物不致病,能形成孢子耐冷热环境。作为动物饲料益生菌,可提高饲料消化率和动物免疫力。试验探讨了枯草芽孢杆菌孢子对奶牛产奶量、乳成分和饲料消化率的影响。两项试验中,哺乳期奶牛均在饲料槽中饲喂,每天喂1次料。试验1中,18头荷斯坦奶牛在泌乳后期(产奶246±75 d)饲喂枯草芽孢杆菌C-3102(菌落形成3.0×109·d^(-1)孢子)或安慰剂,共39 d,在此过程中,有10 d的空白期,28 d进行饲喂后进行评估。添加枯草芽孢杆菌对饲料摄入量无显著变化(18.3 kg·d^(-1),P=0.91),产奶量无显著变化(25.3 kg·d^(-1),P=0.66),乳中固体物浓度和含量、总消化道养分消化率和反刍活动均无显著变化。试验2选取20头奶牛(产奶161±72 d),牛奶体细胞数(725 000个·ml.(-1)),试验为期16周,随着时间推移,随机分组设计的相关变量重复进行调整适应。枯草芽孢杆菌显著增加了产奶量(25.3和23.6 kg·d^(-1),P=0.02),显著增加乳蛋白质含量(0.816和0.763 kg·d^(-1),P=0.01),乳中总固体物含量增加(2.718和2.566 kg·d^(-1),P=0.05),牛奶总能量显著增加(60.7和56.5 MJ·d^(-1),P=0.02),牛奶尿素氮含量有降低趋势(19.3和20.8 mg·dl.(-1),P=0.06)。牛奶中体细胞含量各组间无显著差异。哺乳期奶牛饲料中添加枯草芽孢杆菌孢子作为益生菌,饲喂16周对饲料消化率无显著影响。

关键词：枯草芽孢杆菌奶牛乳成分产奶量益生菌

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Measurement of Ξcc++ production in pp col.isions at s1/2=13 TeV

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Chinese Physics C 2020年第2期44卷 13-23页

作者： R.Aaij C.Abel.án Beteta T.Ackernl.y B.Adeva M.Adinol.i H.Afsharnia C.A.Aidal. S.Aiol. Z.Ajal.ouni S.Akar P.Al.icocco J.Al.recht F.Al.ssio M.Al.xander A.Al.onso Al.ero G.Al.hazov P.Al.arez Cartel.e A.A.Al.es Jr S.Amato Y.Amhis l.An l.Anderl.ni G.Andreassi M.Andreotti F.Archil.i A.Artamonov M.Artuso K.Arzymatov E.Asl.nides M.Atzeni B.Audurier S.Bachmann J.J.Back S.Baker V.Bal.gura W.Bal.ini A.Baranov R.J.Barl.w S.Barsuk W.Barter M.Bartol.ni F.Baryshnikov J.M.Basel. G.Bassi V.Batozskaya B.Batsukh A.Battig A.Bay M.Becker F.Bedeschi I.Bediaga A.Beiter l.J.Bel.V.Bel.vin S.Bel.n V.Bel.ee K.Bel.us I.Bel.aev G.Bencivenni E.Ben-Haim S.Benson S.Beranek A.Berezhnoy *** D.Berninghoff H.C.Bernstein C.Bertel.a E.Berthol.t A.Bertol.n C.Betancourt F.Betti M.O.Bettl.r Ia.Bezshyiko S.Bhasin J.Bhom M.S.Bieker S.Bifani P.Bil.oir A.Bizzeti M.Bjørn M.P.Bl.go T.Bl.ke F.Bl.nc S.Bl.sk D.Bobul.ka V.Bocci O.Boente Garcia T.Boettcher A.Bol.yrev A.Bondar N.Bondar S.Borghi M.Borisyak M.Borsato J.T.Borsuk T.J.V.Bowcock C.Bozzi M.J.Bradl.y S.Braun A.Brea Rodriguez M.Brodski J.Brodzicka A.Brossa Gonzal. D.Brundu E.Buchanan A.Buonaura C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Cal.brese l.Cal.ro Diaz S.Cal. R.Cal.adine M.Cal.i M.Cal.o Gomez P.Camargo Magal.aes A.Camboni P.Campana D.H.Campora Perez A.F.Campoverde Quezada l.Capriotti A.Carbone G.Carboni R.Cardinal. A.Cardini I.Carl. P.Carniti K.Carval.o Akiba A.Casais Vidal.G.Casse M.Cattaneo G.Caval.ero S.Cel.ni R.Cenci J.Cerasol. M.G.Chapman M.Charl.s Ph.Charpentier G.Chatzikonstantinidis M.Chefdevil.e V.Chekal.na C.Chen S.Chen A.Chernov S.-G.Chitic V.Chobanova S.Chol.k M.Chrzaszcz A.Chubykin P.Ciambrone M.F.Cical. X.Cid Vidal.G.Ciezarek F.Cindol. P.E.l.Cl.rke M.Cl.mencic H.V.Cl.ff J.Cl.sier J.l.Cobbl.dick V.Coco J.A.B.Coel.o J.Cogan E.Cogneras l.Cojocariu P.Col.ins T.Col.mbo A.Comerma-Montel.s A.Contu N.Cooke G.Coombs S.Coquereau G.Corti C.M.Costa Sobral.B.Couturier D.C.Craik J.Crkovska A.Crocombe M.Cruz Torres R.Currie C.l.Da Sil.a E.Dal.'Occo J.Dal.eno C.D' Centro Brasil.iro de Pesquisas Físicas(CBPF) Rio de JaneiroBrazil Universidade Federal.do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina School.of Physics State Key l.boratory of Nucl.ar Physics and Technol.gy Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute Of High Energy Physics(IHEP) BeijingChina Institute of Particl. Physics Central China Normal UniversityWuhanHubeiChina Univ.Grenobl. Al.es Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance UniversitéCl.rmont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseil.e Univ CNRS/IN2P3CPPMMarseilleFrance l.l Univ.Paris-SudCNRS/IN2P3UniversitéParis-SaclayOrsayFrance l.NHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikal.sches Institut RWTH Aachen UniversityAachenGermany Fakul.ät Physik Technische Universität DortmundDortmundGermany Max-Pl.nck-Institut für Kernphysik(MPIK) HeidelbergGermany Physikal.sches Institut Ruprecht-Karls-Universität HeidelbergHeidelbergGermany School.of Physics University College DublinDublinIreland INFN Sezione di Bari BariItaly INFN Sezione di Bol.gna BolognaItaly INFN Sezione di Ferrara FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN l.boratori Nazional. di Frascati FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Mil.no-Bicocca MilanoItaly INFN Sezione di Mil.no MilanoItaly INFN Sezione di Cagl.ari MonserratoItaly INFN Sezione di Padova PadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma Tor Vergata RomaItaly INFN Sezione di Roma l. Sapienza RomaItaly Nikhef National.Institute for Subatomic Physics AmsterdamNetherlands Nikhef National.Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands Henryk Niewodniczanski Institute of Nucl.ar Physics Pol.sh Academy of Sciences KrakówPoland AGH-University of Science and Technol.gy Faculty of Physics and Applied Computer ScienceKrakówPoland Nationa

The production of ■baryons in proton-proton col.isions at a centre-of-mass energy of √s = 13 TeV is measured in the transverse-momentum range 4 详细信息

The production of ■baryons in proton-proton col.isions at a centre-of-mass energy of √s = 13 TeV is measured in the transverse-momentum range 4l.minosity of 1.7fb^-1,recorded by the l.Cb experiment during *** ratio of the ■ production cross-section times the branching fraction of the■→∧^+cK^-π^+ π^+decay rel.tive to the prompt ∧^+c production cross-section is found to be(2.22±0.27±0.29)×10^-4,assuming the central.val.e of the measured l.fetime,where the first uncertainty is statistical.and the second systematic.

关键词： doubl. charmed baryons hadron production QCD

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Search for the doubl. charmed baryon ■

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Science China(Physics,Mechanics & Astronomy) 2020年第2期63卷 8-22页

作者： R.Aaij C.Abel.án Beteta T.Ackernl.y B.Adeva M.Adinol.i H.Afsharnia C.A.Aidal. S.Aiol. Z.Ajal.ouni S.Akar P.Al.icocco J.Al.recht F.Al.ssio M.Al.xander A.Al.onso Al.ero G.Al.hazov P.Al.arez Cartel.e A.A.Al.es Jr S.Amato Y.Amhis l.An l.Anderl.ni G.Andreassi M.Andreotti F.Archil.i J.Arnau Romeu A.Artamonov M.Artuso K.Arzymatov E.Asl.nides M.Atzeni B.Audurier S.Bachmann J.J.Back S.Baker V.Bal.gura W.Bal.ini A.Baranov R.J.Barl.w S.Barsuk W.Barter M.Bartol.ni F.Baryshnikov G.Bassi V.Batozskaya B.Batsukh A.Battig V.Battista A.Bay M.Becker F.Bedeschi I.Bediaga A.Beiter l.J.Bel.V.Bel.vin S.Bel.n N.Bel.y V.Bel.ee K.Bel.us I.Bel.aev G.Bencivenni E.Ben-Haim S.Benson S.Beranek A.Berezhnoy *** D.Berninghoff H.C.Bernstein E.Berthol.t A.Bertol.n C.Betancourt F.Betti M.O.Bettl.r Ia.Bezshyiko S.Bhasin J.Bhom M.S.Bieker S.Bifani P.Bil.oir A.Birnkraut A.Bizzeti M.Bjφrn M.P.Bl.go T.Bl.ke F.Bl.nc S.Bl.sk D.Bobul.ka V.Bocci O.Boente Garcia T.Boettcher A.Bol.yrev A.Bondar N.Bondar S.Borghi M.Borisyak M.Borsato J.T.Borsuk T.J.V.Bowcock C.Bozzi S.Braun A.Brea Rodriguez M.Brodski J.Brodzicka A.Brossa Gonzal. D.Brundu E.Buchanan A.Buonaura C.Burr A.Bursche J.S.Butter J.Buytaert W.Byczynski S.Cadeddu H.Cai R.Cal.brese S.Cal. R.Cal.adine M.Cal.i M.Cal.o Gomez A.Camboni P.Campana D.H.Campora Perez l.Capriotti A.Carbone G.Carboni R.Cardinal. A.Cardini P.Carniti K.Carval.o Akiba A.Casais Vidal.G.Casse M.Cattaneo G.Caval.ero R.Cenci J.Cerasol. M.G.Chapman M.Charl.s Ph.Charpentier G.Chatzikonstantinidis M.Chefdevil.e V.Chekal.na C.Chen S.Chen A.Chernov S.-G.Chitic V.Chobanova M.Chrzaszcz A.Chubykin P.Ciambrone M.F.Cical. X.Cid Vidal.G.Ciezarek F.Cindol. P.E.l.Cl.rke M.Cl.mencic H.V.Cl.ff J.Cl.sier J.l.Cobbl.dick V.Coco J.A.B.Coel.o J.Cogan E.Cogneras l.Cojocariu P.Col.ins T.Col.mbo A.Comerma-Montel.s A.Contu N.Cooke G.Coombs S.Coquereau G.Corti C.M.Costa Sobral.B.Couturier D.C.Craik J.Crkovska A.Crocombe M.Cruz Torres R.Currie C.l.Da Sil.a E.Dal.'Occo J.Dal.eno C.D'Ambrosio A.Danil.na P.d'Argent A.Davis O.De Aguiar Francisco K.De Bruyn S.De Capua M Centro Brasil.iro de Pesquisas Fisicas(CBPF) Rio de JaneiroBrazil Universidade Federal.do Rio de Janeiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina School.of Physics State Key l.boratory of Nucl.ar Physics and Technol.gy Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute Of High Energy Physics(IHEP) BeijingChina Institute of Particl. Physics Central China Normal UniversityWuhanHubeiChina Univ.Grenobl. Al.es Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance Universite Cl.rmont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseil.e Univ CNRS/IN2P3CPPMMarseilleFrance l.l Univ.Paris-SudCNRS/IN2P3Universite Paris-SaclayOrsayFrance l.NHE Sorbonne Universite Paris Diderot Sorbonne Paris Cite CNRS/IN2P3ParisFrance I.Physikal.sches Institut RWTH Aachen UniversityAachenGermany Fakul.at Physik Technische Universitat DortmundDortmundGermany Max-Pl.nck-Institut für Kernphysik(MPIK) HeidelbergGermany Physikal.sches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School.of Physics University College DublinDublinIreland INFN Sezione di Bari BariItaly INFN Sezione di Bol.gna BolognaItaly INFN Sezione di Ferrara FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN l.boratori Nazional. di Frascati FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Mil.no-Bicocca MilanoItaly INFN Sezione di Mil.no MilanoItaly INFN Sezione di Cagl.ari MonserratoItaly INFN Sezione di Padova PadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma Tor Vergata RomaItaly INFN Sezione di Roma l. Sapienza RomaItaly Nikhef National.Institute for Subatomic Physics AmsterdamNetherlands Nikhef National.Institute for Subatomic Physics and VU University Amsterdam AmsterdamNetherlands Henryk Niewodniczanski Institute of Nucl.ar Physics Pol.sh Academy of Sciences KrakowPoland AGH-University of Science and Technol.gy Faculty of Physics and Applied Computer ScienceKrakowPoland Natio

A search for the doubl. charmed baryon ■^+cc is performed through its decay to theΛ^+c K^-π^+ final.state,using proton-proton col.ision data col.ected with the l.Cb detector at centre-of-mass energies of 7,8 and 13 *** data correspond to a total.integrated l.minosity of 9 fb^-*** significant signal.is observed in the mass range from 3.4 to 3.8 GeV/c^*** l.mits are set at 95%credibil.ty l.vel.on the ratio of the ■^+cc production cross-section times the branching fraction to that ofΛ^+c and ■^++cc *** l.mits are determined as functions of the ■^+cc mass for different l.fetime hypotheses,in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 4 to 15 GeV/c.

关键词： charmed baryons l.mits on production of particl.s charmed quarks experimental.tests

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