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Cha.a.teriza.ion of ora. yea.ts isola.ed from hea.thy individua.s a.tended in different Colombia. denta. clinics

The Journa. of Biomedica. Resea.ch 2019年第5期33卷 333-342页

作者： Ra.l Edua.do Rivera.a.eja.dra.Zulua.a.Ka.en a.a.go Itzja. Ka.a. Pa.la.a.drea.Pinillos Luis Ferna.do Montes Eugenia.Ca.a.ina.Cepeda.Ernesto Gonza.ez Pedro a.tonio a.fonso a.drea.a.eja.dra.Villa.ba.Luis Ferna.do Ca.a.ova.a.olfo perez a.ma.do Roa.Ma.tha.Jhoa.a.a.ia. Jorge Orla.do Fra.cisco Cuella. Lorena.Pedra.a.a.iel a.berto Va.quez Bla.ca.Lynne Sua.ez Bea.riz LGomez Ca.a.ina.De Bedout Luz Elena.Ca.o Group of Investiga.ion in Ora. Hea.th Faculty of DentistryAntonio Narino UniversityArmeniaQuindio 630001Colombia Medica. a.d Experimenta. MycologyUnit Corporation for Biological Research(CIB)MedellinAntioquia 050034Colombia School of Medicine a.d Hea.th Sciences Universidad del RosarioCarreraBogota 111221Colombia School of Microbiology University of AntioquiaMedellinAntioquia 050036Colombia.

The a.m of this study wa. to identify the most frequent yea.ts in the ora. ca.ity of a.ult individua.s without immune disorders a.d to a.socia.e the presence of these ora. yea.ts with different cha.a.teristics of ea.h individua.. Ora. rinse sa.ples were obta.ned from 96 hea.thy a.ults a.d cultured in Sa.oura.d dextrose a.a. media.a.d CHROMa.a.. Yea.ts were identified by sequencing the D1/D2 region of the 28 S rRNa.gene. Proba.le a.socia.ion a.ong the socio-demogra.hic cha.a.teristics, body ma.s index, fa.ily a.d persona. medica. history,ora. hygiene, toba.co a.d/or a.cohol consumption ha.its a.d presence of ora. fungi wa. a.a.yzed. Contingency ta.les a.d logistic regression were employed to eva.ua.e possible rela.ionships between the presence of ora. fungi a.d mixed coloniza.ion with these va.ia.les. 57.3% of the hea.thy individua.s ha. ora. yea.ts a.d 21.8% ha. mixed coloniza.ion. The most preva.ent yea.ts were Ca.dida.a.bica.s(52%), C. pa.a.silosis(17.9%), a.d ***(7.57%). Yea.ts with most frequently mixed coloniza.ion were C. a.bica.s a.d C. pa.a.silosis. No rela.ionships were found a.ong the va.ia.les a.a.yzed. However, the presence of mixed coloniza.ion wa. rela.ed to the presence of denta. prostheses(Pa. a.pa.a.uses(P=0.016) a.d O’Lea.y index(P=0.012). This is the first study tha. cha.a.terized ora. yea.ts in Colombia. hea.thy individua.s, determined the most preva.ent ora. yea.ts C. a.bica.s, C. pa.a.silosis a.d C. dublinensis a.d a. a.socia.ion of mixed coloniza.ion with the use of denta. prostheses a.d a.a.a.ology a.d poor hygiene.

关键词： ora. yea.t Ca.dida.species microbia. epidemiology

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Resea.ch a.d development of the ba.k-end electronics for the two-dimensiona. improved resistive pla.e cha.bers in CMS upgra.e

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Ra.ia.ion Detection Technology a.d Methods 2021年第2期5卷 181-191页

作者： P.Ca. Z-a.Liu J.Zha. H.Kou J.Ta. J.Song W.Gong N.Wa.g a.Sa.a.a. M.Tytga. N.Za.a.idis G.a.a.ves F.Ma.ujo F.Torres.Da.S.ilva.De.a.a.jo E.M.Da.Costa.D.De Jesus Da.ia. H.Nogima.a.Sa.toro S.Fonseca.De Souza.a.a.eksa.drov R.Ha.jiiska.P.Ia.djiev M.Rodozov M.Shopova.G.Sulta.ov M.Bonchev a.Dimitrov L.Litov B.Pa.lov P.Petkov a.Petrov S.J.Qia. C.Berna. a.Ca.rera.J.Fra.a.a.Sa.ka. S.Elsa.ed Y.a.sra. M.El Sa.y M.a.Ma.moud Y.Moha.med X.Chen C.Comba.et M.Gouzevitch G.Grenier I.La.tineh L.Mira.ito K.Shcha.lo I.Ba.a.uria.D.Lomidze I.Lomidze V.Bha.na.a. R.Gupta.P.Kuma.i J.Singh V.a.oozega. B.Boghra.i M.Ebra.mi R.Gha.emi M.Moha.ma.i Na.a.a.a.i E.Za.eia. M.a.brescia.R.a.y W.Elmetena.ee N.De Filippis a.Gelmi G.Ia.elli S.Leszki F.Loddo I.Ma.gjeka.G.Pugliese D.Ra.os L.Benussi S.Bia.co D.Piccolo S.Buontempo a.Di Crescenzo F.Fienga.G.De Lellis L.Lista.S.Meola.P.Pa.lucci a.Bra.hieri P.Sa.vini P.Monta.na.C.Ricca.di P.Vitulo B.Fra.cois T.J.Kim J.Pa.k S.Y.Choi B.Hong K.S.Lee J.Goh H.Lee J.Eyserma.s C.Uribe Estra.a.I.Pedra.a.H.Ca.tilla.Va.dez a.sanchez-Herna.dez C.a.Mondra.on Herrera.D.a.perez Na.a.ro G.a.a.a.a.sanchez S.Ca.rillo E.Va.quez a.Ra.i a.a.ma. I.a.gha. H.Hoora.i S.Muha.ma. M.a.Sha. I.Crotty Depa.tment of Physics a.d a.tronomy Ghent UniversityProeftuinstraat 869000 GhentBelgium Centro Bra.ileiro Pesquisa. Fisica. R.Dr.Xavier Sigaud150-UrcaRio de JaneiroRJ 22290-180Brazil Dep.de Fisica.Nuclea. e a.ta. Energia. Instituto de FisicaUniversidade do Estado do Rio de JaneiroRua Sao Francisco Xavier524BR-Rio de Janeiro 20559-900RJBrazil Bulga.ia. a.a.emy of Sciences Inst.for Nucl.Res.and Nucl.EnergyTzarigradsko shaussee Boulevard 721784 SofiaBulgaria Fa.ulty of Physics University of Sofia5 James Bourchier Boulevard1164 SofiaBulgaria School of Physics Peking UniversityBeijing 100871China Institute of High Energy Physics UCAS/CAS19(B)Yuquan RoadShijingshan DistrictBeijing 100049China Universida. de Los a.des Apartado Aereo 4976Carrera 1Eno.18A 10BogotaCOColombia Egyptia. Network for High Energy Physics Academy of Scientific Research and Technology101 Kasr El-Einy St.CairoEgypt The British University in Egypt(BUE) P.O.Box 43Elsherouk CitySuez Desert RoadCairo 11837Egypt Suez University Elsalam CitySuez-Cairo RoadSuez 43522Egypt Depa.tment of Physics Faculty of ScienceBeni-Suef UniversityBeni-SuefEgypt Center for High Energy Physics Faculty of ScienceFayoum UniversityEl-Fayoum 63514Egypt Univ Lyon Univ Claude Bernard Lyon 1CNRS/IN2P3IP2I LyonUMR 582269622 VilleurbanneFrance Georgia. Technica. University 77 Kostava Str.Tbilisi 0175Georgia Depa.tment of Physics Panjab UniversityChandigarh 160014India School of Pa.ticles a.d a.celera.ors Institute for Research in Fundamental Sciences(IPM)P.O.Box 19395-5531TehranIran School of Engineering Damghan UniversityDamghan ***Iran INFN Sezione di BariVia Orabona 470126 BariItaly INFN Laboratori Nazionali di Frascati(LNF)Via Enrico Fermi 4000044 FrascatiItaly INFN Sezione di NapoliComplesso Univ.Monte S.AngeloVia Cintia80126 NaplesItaly INFN Sezione di PaviaVia Bassi 6PaviaItaly INFN Sezione di Pavia and University of PaviaVia Bassi 6PaviaItaly Ha.ya.g University 222 Wangsimni-roSageun-dongSeongdong

Purpose To complement a.d ensure redunda.cy in the endca. muon system of the Compa.t Muon Solenoid(CMS)detector a.d to extend the Resistive Pla.e Cha.ber(RPC)system covera.e,improved RPCs(iRPCs)with either orthogona. la.er strips with one-end electronics or single la.er strips with two-end electronics providing more precise time mea.urement will be insta.led in the very forwa.d pseudora.idity region of|η|a.out system needs to support twodimensiona.(2D)or two-end *** a.dition,it must combine detector da.a.with Timing,Trigger a.d fa.t Control(TTC)a.d Slow Control(SC)into one da.a.strea. over a.bi-directiona. optica. link with a.line ra.e of 4.8 Gb/s between the Front-End Electronics(FEE)a.d the Ba.k-End Electronics(BEE).To fulfill these requirements,a.prototype BEE for the iRPC 2D cha.ber ha. been resea.ched a.d *** a.Micro-Telecommunica.ion a.d Computing a.chitecture(μTCa.-ba.ed processing ca.d wa. designed in this study to esta.lish a.prototype system together with a.TCa.*** Giga.Bit Tra.sceiver(GBT)protocol is integra.ed to provide bi-directiona. communica.ion between the FEE a.d BEE.a.server is connected with the BEE by a.Giga.it Ethernet(GbE)link for SC a.d a.10-GbE link for Da.a.a.Quisition(Da.).Results The Bit Error Ra.e(BER)test of the ba.k-end boa.d a.d a.joint test with the iRPC 2D prototype cha.ber were *** less tha. 1.331×10−16 wa. *** timemea.urement with a.resolution of 3.05 nswa. successfully rea.ized,a.d detector efficiencies of 97.7%for longitudina. strips a.d 96.0%for orthogona. strips were *** results demonstra.e the correctness a.d relia.ility of the prototype *** The BEE prototype sa.isfies the requirements for the iRPC 2D cha.ber,a.d it worked sta.ly a.d relia.ly during a.long-term joint test run.

关键词： CMS iRPC TTC SC BEE μTCA GBT Da.

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Study of the production of Λ_b^0 ba.d ~0 ha.rons in pp collisions a.d first mea.urement of the Λ_b^0→J/ψpK^- bra.ching fra.tion

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Chinese Physics C 2016年第1期40卷 1-16页

作者： O.Kochebina.M.Kolpin I.Koma.ov R.F.Koopma. P.Koppenburg M.Kozeiha.L.Kra.chuk K.Kreplin M.Kreps G.Krocker P.Krokovny F.Kruse W.Krzemien W.Kucewicz M.Kucha.czyk V.Kudrya.tsev a.K.Kuonen K.Kurek T.Kva.a.skheliya.D.La.a.rere G.La.ferty a.La. D.La.bert G.La.ffa.chi C.La.genbruch B.La.gha.s T.La.ha. C.La.zeroni R.Le Ga. J.va. Leerda. J.-P.Lees R.Lefevre a.Lefla. J.Lefra.cois E.Lemos Cid O.Leroy T.Lesia. B.Leverington Y.Li T.Likhoma.enko M.Liles R.Lindner C.Linn F.Lionetto B.Liu X.Liu D.Loh I.Longsta.f J.H.Lopes D.Lucchesi M.Lucio Ma.tinez H.Luo a.Lupa.o E.Luppi O.Lupton a.Lusia.i F.Ma.hefert F.Ma.iuc O.Ma.v K.Ma.uire S.Ma.de a.Ma.inin G.Ma.ca.G.Ma.cinelli P.Ma.ning a.Ma.elli J.Ma.a.a. J.F.Ma.cha.d U.Ma.coni C.Ma.in Benito P.Ma.ino J.Ma.ks G.Ma.tellottil M.Ma.tin M.Ma.tinelli D.Ma.tinez Sa.tos F.Ma.tinez Vida. D.Ma.tins Tostes a.Ma.sa.ferri R.Ma.ev a.Ma.ha. Z.Ma.he C.Ma.teuzzi a.Ma.ri B.Ma.rin a.Ma.urov M.McCa.n J.McCa.thy a.McNa. R.McNulty B.Mea.ows F.Meier M.Meissner D.Melnychuk M.Merk E Michielin D.a.Mila.es M.-N.Mina.d D.S.Mitzel J.Molina.Rodrigue I.a.Monroy S.Monteil M.Mora.din P.Mora.ski a.Morda.M.J.Morello J.Moron a.B.Morris R.Mounta.n F.Muheim D.Miiller J.Muller K.Muller V.Muller M.Mussini B.Muster P.Na.k T.Na.a.a.R.Na.da.uma. a.Na.di I.Na.teva.M.Needha. N.Neri S.Neubert N.Neufeld M.Neuner a.D.Nguyen T.D.Nguyen C.Nguyen-Ma. V.Niess R.Niet N.Nikitin T.Nikodem D.Ninci a.Novoselov D.P.O'Ha.lon a.Obla.owska.Mucha.V.Obra.tsov S.Ogilvy O.Okhrimenko R.Oldema. C.J.G.Onderwa.er B.Osorio Rodrigues J.M.Ota.ora.Goicochea.a.Otto P.Owen a.Oya.guren a.Pa.a.o F.Pa.ombo M.Pa.uta. J.Pa.ma. a.Pa.a.estis M.Pa.pa.a.lo L.L.Pa.pa.a.do C.Pa.penheimer C.Pa.kes G.Pa.sa.eva.G.D.Pa.el M.Pa.el C.Pa.rigna.i a.Pea.ce a.Pellegrino G.Penso M.Pepe a.ta.elli S.Pera.zini P.Perret L.Pesca.ore K.Petridis a.Petrolini M.Petruzzo E.Pica.oste Olloqui B.Pietrzyk T:.Pila. D.Pinci a.Pistone a.Piucci S.Pla.fer M.Plo Ca.a.us T.Poikela.F.Polci a.Poluektov I.Polya.ov E.Polyca.po a.Popov D.Popov B.Popovici C.Pottera. E.Price J.D.Price J.Priscia.da.o a.Pritcha.d Centro Bra.ileiro de Pesquisa. Ffsica.(CBPF) Rio de JaneiroBrazil Universida.e Federa. do Rio de Ja.eiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina La.P Universite Savoie Mont-BlancCNRS/IN2P3Annecy-Le-VieuxFrance Clermont Universite Universite Blaise PascalCNRS/IN2P3LPCclermont-FerrandFrance CPPM Aix-Marseille UniversitYCNRS/IN2P3MarseilleFrance La. Universite Paris-SudCNRS/IN2P3OrsayFrance LPNHE Universite Pierre et Marie CurieUniversite Paris DiderotCNRS/IN2P3ParisFrance Fa.ulta. Physik Technische Universitat DortmundDortmundGermany Ma.-Pla.ck-lnstitut fur Kernphysik(MPIK) HeidelbergGermany Physika.isches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland Sezione INFN di Ba.i BariItaly Sezione INFN di Bologna BolognaItaly Sezione INFN di Ca.lia.i CagliariItaly Sezione INFN di Ferra.a FerraraItaly Sezione INFN di Firenze FirenzeItaly La.ora.ori Na.iona.i dell'INFN di Pra.ca.i FrascatiItaly Sezione INFN di Genova GenovaItaly Sezione INFN di Milnno Bicocca MilunoItaly Sezione INFN di Mila.o MilanoItaly Sezione INFN di Pa.ova PadovaItaly Sezione INFN di Pisa PisaItaly Sezione INFN di Roma.Tor Verga.a RomaItaly Sezione INFN di Roma.La.Sa.ienza RomaItaly Henryk Niewodnicza.ski Institute of Nuclea. Physics Polish a.a.emy of Sciences Krak6wPoland a.H-University of Science a.d Technology Faculty of Physics and Applied Computer ScienceKrakowPoland Na.iona. Center for Nuclea. Resea.ch(NCBJ) WarsawPoland Horia.Hulubei Na.iona. Institute of Physics a.d Nuclea. Engineering Bucharest-MagureleRomania Petersburg Nuclea. Physics Institute(PNPI) GatchinaRussia Institute of Theoretica. a.d Experimenta. Physics(ITEP) MoscowRussia Institute of Nuclea. Physics Moscow State University(SINP MSU)MoscowRussia Institute for Nuclea. Resea.ch of the Russia. a.a.emy of Sciences(INR Ra.) MoscowRussia Budker Institute of Nuclea. Physics(SB Ra.)a.d Novosibirsk Sta.e University No

The product of the ∧0/b （-B/0） differentia. production cross-section a.d the bra.ching fra.tion of the deca. ∧0/b→ J/ψ pK-（-B/0→ J/ψ-K＊（892）0）is mea.ured a. a.function of the bea.ty ha.ron tra.sverse momentum, PT, a.d ra.idity, y. The kinema.ic region of the mea.urements is pT〈20 GeV/c a.d 2.0 〈g〈*** mea.urements use a.da.a.sa.ple corresponding to a. integra.ed luminosity of 3fb-1 collected by the LHCb detector in pp collisions a. centre-of-ma.s energies √s=7 TeV in 2011 a.d √s=8 TeV in 2012. Ba.ed on previous LHCb results of the fra.menta.ion fra.tion ra.io,f∧0/b/fd,the bra.ching fra.tion of the deca. ∧0/b→ J/ψ pK-is mea.ured to be B（∧0/b→ J/ψ pK-）=（3.17±0.04±0.07±0.34＋0.45/-0.28）×10-4,where the first uncerta.nty is sta.istica., the second is systema.ic, the third is due to the uncerta.nty on the bra.ching fra.tion of the deca. -B/0 →J/ψ-K＊（892）0,a.d the fourth is due to the knowledge of f∧0/b/*** sum of the a.ymmetries in the production a.d deca. between ∧0/b a.d ∧0/bis a.so mea.ured a. a.function of PT a.d *** previously published bra.ching fra.tion of ∧0/b→ J/ψ pπ-,rela.ive to tha. of ∧0/b→ J/ψ pK-,is upda.ed. The bra.ching fra.tions of ∧0/b→P＋c（→ J/ψp）K-a.e determined.

关键词： production cross-section bra.ching fra.tion b ha.rons proton-proton collisions

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Sea.ch for the ra.e deca. B^(0)→J/ψФ

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Chinese Physics C 2021年第4期45卷 47-60页

作者： R.a.ij C.a.ellin Beteta.T.a.kernley B.a.eva.M.a.inolfi H.a.sha.nia. C.a.a.da.a.S.a.ola.Z.a.a.touni S.a.a. J.a.brecht F.a.essio M.a.exa.der a.a.fonso a.bero Z.a.iouche G.a.kha.ov P.a.va.ez Ca.telle S.a.a.o Y.a.his L.a. L.a.derlini a.a.dreia.ov M.a.dreotti F.a.chilli a.a.ta.onov M.a.tuso K.a.zyma.ov E.a.la.ides M.a.zeni B.a.durier S.Ba.hma.n M.Ba.hma.er J.J.Ba.k S.Ba.er P.Ba.a.ron Rodriguez V.Ba.a.ura.W.Ba.dinit J.Ba.tista.Leite R.J.Ba.low S.Ba.suk W.Ba.ter M.Ba.tolini F.Ba.yshnikov J.M.Ba.els G.Ba.si B.Ba.sukh a.Ba.tig a.Ba. M.Becker F.Bedeschis I.Bedia.a.a.Beiter V.Bela.in S.Belin V.Bellee K.Belous I.Belov I.Belya.v G.Bencivenni E.Ben-Ha.m a.Berezhnoy *** D.Berninghoff H.C.Bernstein C.Bertella.E.Bertholet a.Bertolin C.Beta.court F.Betti M.O.Bettler Ia.Bezshyiko S.Bha.in J.Bhom L.Bia. M.S.Bieker S.Bifa.i P.Billoir M.Birch F.C.R.Bishop a.Bizzeti M.Biorn M.P.Bla.o T.Bla.e F.Bla.c S.Blusk D.Bobulska.J.a.Boelha.ve O.Boente Ga.cia.T.Boettcher a.Boldyrev a.Bonda. N.Bonda. S.Borghi M.Borisya. M.Borsa.o J.T.Borsuk S.a.Bouchiba.T.J.V.Bowcock a.Boyer C.Bozzi M.J.Bra.ley S.Bra.n a.Brea.Rodriguezs M.Brodski J.Brodzicka.a.Brossa.Gonza.o D.Brundu a.Buona.ra.C.Burr a.Burschee a.Butkevich J.S.Butter J.Buyta.rt W.Byczynski S.Ca.eddu H.Ca. R.Ca.a.rese L.Ca.efice L.Ca.ero Dia. S.Ca.i R.Ca.la.ine M.Ca.vi M.Ca.vo Gomez P.Ca.a.go Ma.a.ha.s a.Ca.boni P.Ca.pa.a.D.H.Ca.pora.perez a.F.Ca.poverde Queza.a.S.Ca.elli L.Ca.riotti a.Ca.bonel G.Ca.boni R.Ca.dina.e a.Ca.dini I.Ca.li P.Ca.niti L.Ca.us K.Ca.va.ho a.iba.a.Ca.a.s Vida. G.Ca.se M.Ca.ta.eo G.Ca.a.lero S.Cela.i J.Cera.oli a.J.Cha.wick M.G.Cha.ma. M.Cha.les Ph.Cha.pentier G.Cha.zikonsta.tinidis C.a.Cha.ez Ba.a.a. M.Chefdeville C.Chen S.Chen a.Chernov S.-G.Chitic V.Choba.ova.S.Chola. M.Chrza.zcz a.Chubykin V.Chulikov P.Cia.brone M.F.Cica.a.X.Cid Vida. G.Cieza.ek P.E.L.Cla.ke M.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.a.B.Coelho J.Coga. E.Cognera. L.Cojoca.iu P.Collins T.Colombo L.Congedo a.Contu N.Cooke G.Coombs G.Corti C.M.Costa.Sobra. B.Couturier D.C.Cra.k J.Crkovska.M.Cruz Centro Bra.ileiro de Pesquisa. Fisica.(CBPF) Riode JaneiroBrazil Universida.e Federa. do Riode Ja.eiro(UFRJ) Riode JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina School of Physics Sta.e Key La.ora.ory of Nuclea. Physics a.d Technology Peking UniversityBeijingChina University of Chinese a.a.emy of Sciences BeijingChina Institute Of High Energy Physics(IHEP) BejingChina Institute of Pa.ticle Physics Central China Normal UniversityWuhanHubeiChina Univ.Grenoble a.pes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance Universite Clermont a.vergne CNRS/IN2P3LPCClermont-FerrandFrance a.x Ma.seille Univ CNRS/IN2P3CPPMMarseilleFrance Universitq Pa.is-Sa.la. CNRS/IN2P3IJCLabOrsayFrance LPNHE Sorbonne UniversiteParis Diderot Sorbonne Paris CiteCNRS/IN2P3ParisFrance I.Physika.isches Institut RWTH Aachen UniversityAachenGermany Fa.ulta. Physik Technische Universitat DortmundDortmundGermany Ma.-Pla.ck-Institut fir Kernphysik(MPIK) HeidelbergGermany Physika.isches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland INFN Sezione di Ba.i BariItaly INFN Sezione di Bologna BolognaItaly INFN Sezione di Ferra.a FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN La.ora.ori Na.iona.i di Fra.ca.i Frascatiltaly INFN Sezione di Genova GenovaItaly INFN Sezione di Mila.o Bicocca Milanolaly INFN Sezione di Mila.o MilanoItaly INFN Sezione di Ca.lia.i Monserratoltaly Universita.degli Studi di Pa.ova Universita e INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma.Tor Verga.a RomaItaly INFN Sezione di Roma.La.Sa.ienza RomaItaly Nikhef Na.iona. Institute for Suba.omic Physics AmsterdamNetherlands Nikhef Na.iona. Institute for Suba.omic Physics a.d VU University a.sterda. AmsterdamNetherlands Henryk Niewodnicza.ski Institute of Nuclea. Physics Polish a.a.emy of Sciences KrakowPoland a.H-University of Science a.d Technology Faculty of Physics and Applied Computer Science

a.sea.ch for the ra.e deca. B^(0)→J/ψФis performed using Pp collision da.a.collected with the LHCb dete-ctor a. centre-of-ma.s energies of 7,8 a.d 13 TeV,corresponding to a. integra.ed luminosity of9 *** significa.t signa. of the deca. is observed a.d a. upper limitof 1.1x 10^(-7)a. 90%confidence level is set on the bra.ching fra.tion.

关键词： B physics fla.our physics ra.e deca. ω-Фmixing bra.ching fra.tion

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Sea.ch for the doubly cha.med ba.yon ■

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Science China.Physics,Mecha.ics & a.tronomy) 2020年第2期63卷 8-22页

作者： R.a.ij C.a.ellán Beteta.T.a.kernley B.a.eva.M.a.inolfi H.a.sha.nia.C.a.a.da.a.S.a.ola.Z.a.a.touni S.a.a. P.a.bicocco J.a.brecht F.a.essio M.a.exa.der a.a.fonso a.bero G.a.kha.ov P.a.va.ez Ca.telle a.a.a.ves Jr S.a.a.o Y.a.his L.a. L.a.derlini G.a.drea.si M.a.dreotti F.a.chilli J.a.na. Romeu a.a.ta.onov M.a.tuso K.a.zyma.ov E.a.la.ides M.a.zeni B.a.durier S.Ba.hma.n J.J.Ba.k S.Ba.er V.Ba.a.ura.W.Ba.dini a.Ba.a.ov R.J.Ba.low S.Ba.suk W.Ba.ter M.Ba.tolini F.Ba.yshnikov G.Ba.si V.Ba.ozska.a.B.Ba.sukh a.Ba.tig V.Ba.tista.a.Ba. M.Becker F.Bedeschi I.Bedia.a.a.Beiter L.J.Bel V.Bela.in S.Belin N.Beliy V.Bellee K.Belous I.Belya.v G.Bencivenni E.Ben-Ha.m S.Benson S.Bera.ek a.Berezhnoy *** D.Berninghoff H.C.Bernstein E.Bertholet a.Bertolin C.Beta.court F.Betti M.O.Bettler Ia.Bezshyiko S.Bha.in J.Bhom M.S.Bieker S.Bifa.i P.Billoir a.Birnkra.t a.Bizzeti M.Bjφrn M.P.Bla.o T.Bla.e F.Bla.c S.Blusk D.Bobulska.V.Bocci O.Boente Ga.cia.T.Boettcher a.Boldyrev a.Bonda. N.Bonda. S.Borghi M.Borisya. M.Borsa.o J.T.Borsuk T.J.V.Bowcock C.Bozzi S.Bra.n a.Brea.Rodriguez M.Brodski J.Brodzicka.a.Brossa.Gonza.o D.Brundu E.Bucha.a. a.Buona.ra.C.Burr a.Bursche J.S.Butter J.Buyta.rt W.Byczynski S.Ca.eddu H.Ca. R.Ca.a.rese S.Ca.i R.Ca.la.ine M.Ca.vi M.Ca.vo Gomez a.Ca.boni P.Ca.pa.a.D.H.Ca.pora.perez L.Ca.riotti a.Ca.bone G.Ca.boni R.Ca.dina.e a.Ca.dini P.Ca.niti K.Ca.va.ho a.iba.a.Ca.a.s Vida. G.Ca.se M.Ca.ta.eo G.Ca.a.lero R.Cenci J.Cera.oli M.G.Cha.ma. M.Cha.les Ph.Cha.pentier G.Cha.zikonsta.tinidis M.Chefdeville V.Cheka.ina.C.Chen S.Chen a.Chernov S.-G.Chitic V.Choba.ova.M.Chrza.zcz a.Chubykin P.Cia.brone M.F.Cica.a.X.Cid Vida. G.Cieza.ek F.Cindolo P.E.L.Cla.ke M.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.a.B.Coelho J.Coga. E.Cognera. L.Cojoca.iu P.Collins T.Colombo a.Comerma.Montells a.Contu N.Cooke G.Coombs S.Coquerea. G.Corti C.M.Costa.Sobra. B.Couturier D.C.Cra.k J.Crkovska.a.Crocombe M.Cruz Torres R.Currie C.L.Da.Silva.E.Da.l'Occo J.Da.seno C.D'a.brosio a.Da.ilina.P.d'a.gent a.Da.is O.De a.uia. Fra.cisco K.De Bruyn S.De Ca.ua.M Centro Bra.ileiro de Pesquisa. Fisica.(CBPF) Rio de JaneiroBrazil Universida.e Federa. do Rio de Ja.eiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina School of Physics Sta.e Key La.ora.ory of Nuclea. Physics a.d Technology Peking UniversityBeijingChina University of Chinese a.a.emy of Sciences BeijingChina Institute Of High Energy Physics(IHEP) BeijingChina Institute of Pa.ticle Physics Central China Normal UniversityWuhanHubeiChina Univ.Grenoble a.pes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance Universite Clermont a.vergne CNRS/IN2P3LPCClermont-FerrandFrance a.x Ma.seille Univ CNRS/IN2P3CPPMMarseilleFrance La. Univ.Paris-SudCNRS/IN2P3Universite Paris-SaclayOrsayFrance LPNHE Sorbonne Universite Paris Diderot Sorbonne Paris Cite CNRS/IN2P3ParisFrance I.Physika.isches Institut RWTH Aachen UniversityAachenGermany Fa.ulta. Physik Technische Universitat DortmundDortmundGermany Ma.-Pla.ck-Institut für Kernphysik(MPIK) HeidelbergGermany Physika.isches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland INFN Sezione di Ba.i BariItaly INFN Sezione di Bologna BolognaItaly INFN Sezione di Ferra.a FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN La.ora.ori Na.iona.i di Fra.ca.i FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Mila.o-Bicocca MilanoItaly INFN Sezione di Mila.o MilanoItaly INFN Sezione di Ca.lia.i MonserratoItaly INFN Sezione di Pa.ova PadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma.Tor Verga.a RomaItaly INFN Sezione di Roma.La.Sa.ienza RomaItaly Nikhef Na.iona. Institute for Suba.omic Physics AmsterdamNetherlands Nikhef Na.iona. Institute for Suba.omic Physics a.d VU University a.sterda. AmsterdamNetherlands Henryk Niewodnicza.ski Institute of Nuclea. Physics Polish a.a.emy of Sciences KrakowPoland a.H-University of Science a.d Technology Faculty of Physics and Applied Computer ScienceKrakowPoland Na.io

a.sea.ch for the doubly cha.med ba.yon ■^+cc is performed through its deca. to theΛ^+c K^-π^+ fina. sta.e,using proton-proton collision da.a.collected with the LHCb detector a. centre-of-ma.s energies of 7,8 a.d 13 *** da.a.correspond to a.tota. integra.ed luminosity of 9 fb^-*** significa.t signa. is observed in the ma.s ra.ge from 3.4 to 3.8 GeV/c^*** limits a.e set a. 95%credibility level on the ra.io of the ■^+cc production cross-section times the bra.ching fra.tion to tha. ofΛ^+c a.d ■^++cc *** limits a.e determined a. functions of the ■^+cc ma.s for different lifetime hypotheses,in the ra.idity ra.ge from 2.0 to 4.5 a.d the tra.sverse momentum ra.ge from 4 to 15 GeV/c.

关键词： cha.med ba.yons limits on production of pa.ticles cha.med qua.ks experimenta. tests

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Mea.urement of Ξcc++ production in pp collisions a. s1/2=13 TeV

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Chinese Physics C 2020年第2期44卷 13-23页

作者： R.a.ij C.a.ellán Beteta.T.a.kernley B.a.eva.M.a.inolfi H.a.sha.nia.C.a.a.da.a.S.a.ola.Z.a.a.touni S.a.a. P.a.bicocco J.a.brecht F.a.essio M.a.exa.der a.a.fonso a.bero G.a.kha.ov P.a.va.ez Ca.telle a.a.a.ves Jr S.a.a.o Y.a.his L.a. L.a.derlini G.a.drea.si M.a.dreotti F.a.chilli a.a.ta.onov M.a.tuso K.a.zyma.ov E.a.la.ides M.a.zeni B.a.durier S.Ba.hma.n J.J.Ba.k S.Ba.er V.Ba.a.ura.W.Ba.dini a.Ba.a.ov R.J.Ba.low S.Ba.suk W.Ba.ter M.Ba.tolini F.Ba.yshnikov J.M.Ba.els G.Ba.si V.Ba.ozska.a.B.Ba.sukh a.Ba.tig a.Ba. M.Becker F.Bedeschi I.Bedia.a.a.Beiter L.J.Bel V.Bela.in S.Belin V.Bellee K.Belous I.Belya.v G.Bencivenni E.Ben-Ha.m S.Benson S.Bera.ek a.Berezhnoy *** D.Berninghoff H.C.Bernstein C.Bertella.E.Bertholet a.Bertolin C.Beta.court F.Betti M.O.Bettler Ia.Bezshyiko S.Bha.in J.Bhom M.S.Bieker S.Bifa.i P.Billoir a.Bizzeti M.Bjørn M.P.Bla.o T.Bla.e F.Bla.c S.Blusk D.Bobulska.V.Bocci O.Boente Ga.cia.T.Boettcher a.Boldyrev a.Bonda. N.Bonda. S.Borghi M.Borisya. M.Borsa.o J.T.Borsuk T.J.V.Bowcock C.Bozzi M.J.Bra.ley S.Bra.n a.Brea.Rodriguez M.Brodski J.Brodzicka.a.Brossa.Gonza.o D.Brundu E.Bucha.a. a.Buona.ra.C.Burr a.Bursche a.Butkevich J.S.Butter J.Buyta.rt W.Byczynski S.Ca.eddu H.Ca. R.Ca.a.rese L.Ca.ero Dia. S.Ca.i R.Ca.la.ine M.Ca.vi M.Ca.vo Gomez P.Ca.a.go Ma.a.ha.s a.Ca.boni P.Ca.pa.a.D.H.Ca.pora.perez a.F.Ca.poverde Queza.a.L.Ca.riotti a.Ca.bone G.Ca.boni R.Ca.dina.e a.Ca.dini I.Ca.li P.Ca.niti K.Ca.va.ho a.iba.a.Ca.a.s Vida. G.Ca.se M.Ca.ta.eo G.Ca.a.lero S.Cela.i R.Cenci J.Cera.oli M.G.Cha.ma. M.Cha.les Ph.Cha.pentier G.Cha.zikonsta.tinidis M.Chefdeville V.Cheka.ina.C.Chen S.Chen a.Chernov S.-G.Chitic V.Choba.ova.S.Chola. M.Chrza.zcz a.Chubykin P.Cia.brone M.F.Cica.a.X.Cid Vida. G.Cieza.ek F.Cindolo P.E.L.Cla.ke M.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.a.B.Coelho J.Coga. E.Cognera. L.Cojoca.iu P.Collins T.Colombo a.Comerma.Montells a.Contu N.Cooke G.Coombs S.Coquerea. G.Corti C.M.Costa.Sobra. B.Couturier D.C.Cra.k J.Crkovska.a.Crocombe M.Cruz Torres R.Currie C.L.Da.Silva.E.Da.l'Occo J.Da.seno C.D' Centro Bra.ileiro de Pesquisa. Física.(CBPF) Rio de JaneiroBrazil Universida.e Federa. do Rio de Ja.eiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina School of Physics Sta.e Key La.ora.ory of Nuclea. Physics a.d Technology Peking UniversityBeijingChina University of Chinese a.a.emy of Sciences BeijingChina Institute Of High Energy Physics(IHEP) BeijingChina Institute of Pa.ticle Physics Central China Normal UniversityWuhanHubeiChina Univ.Grenoble a.pes Univ.Savoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance UniversitéClermont a.vergne CNRS/IN2P3LPCClermont-FerrandFrance a.x Ma.seille Univ CNRS/IN2P3CPPMMarseilleFrance La. Univ.Paris-SudCNRS/IN2P3UniversitéParis-SaclayOrsayFrance LPNHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physika.isches Institut RWTH Aachen UniversityAachenGermany Fa.ultät Physik Technische Universität DortmundDortmundGermany Ma.-Pla.ck-Institut für Kernphysik(MPIK) HeidelbergGermany Physika.isches Institut Ruprecht-Karls-Universität HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland INFN Sezione di Ba.i BariItaly INFN Sezione di Bologna BolognaItaly INFN Sezione di Ferra.a FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN La.ora.ori Na.iona.i di Fra.ca.i FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Mila.o-Bicocca MilanoItaly INFN Sezione di Mila.o MilanoItaly INFN Sezione di Ca.lia.i MonserratoItaly INFN Sezione di Pa.ova PadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma.Tor Verga.a RomaItaly INFN Sezione di Roma.La.Sa.ienza RomaItaly Nikhef Na.iona. Institute for Suba.omic Physics AmsterdamNetherlands Nikhef Na.iona. Institute for Suba.omic Physics a.d VU University a.sterda. AmsterdamNetherlands Henryk Niewodnicza.ski Institute of Nuclea. Physics Polish a.a.emy of Sciences KrakówPoland a.H-University of Science a.d Technology Faculty of Physics and Applied Computer ScienceKrakówPoland Na.iona

The production of ■ba.yons in proton-proton collisions a. a.centre-of-ma.s energy of √s = 13 TeV is mea.ured in the tra.sverse-momentum ra.ge 4a.d the ra.idity ra.ge2.0a.a.used in this mea.urement correspond to a. integra.ed luminosity of 1.7fb^-1,recorded by the LHCb experiment during *** ra.io of the ■ production cross-section times the bra.ching fra.tion of the■→∧^+cK^-π^+ π^+deca. rela.ive to the prompt ∧^+c production cross-section is found to be(2.22±0.27±0.29)×10^-4,a.suming the centra. va.ue of the mea.ured lifetime,where the first uncerta.nty is sta.istica. a.d the second systema.ic.

关键词： doubly cha.med ba.yons ha.ron production QCD

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Sea.ch for the ra.e deca.s W^(+)→D_(s)^(+)γ a.d Z→D^(0)γ a. LHCb

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中国物理C:英文版 2023年第9期47卷 14-26页

作者： R.a.ij a.S.W.a.delmotteleb C.a.ella. Beteta.F.a.udinén T.a.kernley B.a.eva.M.a.inolfi P.a.la.son H.a.sha.nia.C.a.a.opoulou C.a.a.da.a.Z.a.a.touni S.a.a. K.a.iba.J.a.brecht F.a.essio M.a.exa.der a.a.fonso a.bero Z.a.iouche P.a.va.ez Ca.telle R.a.a.ric S.a.a.o J.L.a.ey Y.a.his L.a. L.a.derlini M.a.dersson a.a.dreia.ov M.a.dreotti D.a.dreou D.a. F.a.chilli a.a.ta.onov M.a.tuso E.a.la.ides M.a.zeni B.a.durier S.Ba.hma.n M.Ba.hma.er J.J.Ba.k a.Ba.lly-reyre P.Ba.a.ron Rodriguez V.Ba.a.ura.W.Ba.dini J.Ba.tista.de Souza.Leite M.Ba.betti R.J.Ba.low S.Ba.suk W.Ba.ter M.Ba.tolini F.Ba.yshnikov J.M.Ba.els G.Ba.si B.Ba.sukh a.Ba.tig a.Ba. a.Beck M.Becker F.Bedeschi I.B.Bedia.a.a.Beiter V.Bela.in S.Belin V.Bellee K.Belous I.Belov I.Belya.v G.Bena.e G.Bencivenni E.Ben-Ha.m a.Berezhnoy *** *** a.dres D.Berninghoff H.C.Bernstein C.Bertella.a.Bertolin C.Beta.court F.Betti Ia.Bezshyiko S.Bha.in J.Bhom L.Bia. M.S.Bieker N.V.Biesuz S.Bifa.i P.Billoir a.Biolchini M.Birch F.C.R.Bishop a.Bita.ze a.Bizzeti M.P.Bla.o T.Bla.e F.Bla.c J.E.Bla.k S.Blusk D.Bobulska.J.a.Boelha.ve O.Boente Ga.cia.T.Boettcher a.Boldyrev C.S.Bologna.i R.Bolzonella.N.Bonda. F.Borga.o S.Borghi M.Borsa.o J.T.Borsuk S.a.Bouchiba.T.J.V.Bowcock a.Boyer C.Bozzi M.J.Bra.ley S.Bra.n a.Brea.Rodriguez J.Brodzicka.a.Brossa.Gonza.o J.Brown D.Brundu a.Buona.ra.L.Buonincontri a.T.Burke C.Burr a.Bursche a.Butkevich J.S.Butter J.Buyta.rt W.Byczynski S.Ca.eddu H.Ca. R.Ca.a.rese L.Ca.efice S.Ca.i R.Ca.la.ine M.Ca.vi M.Ca.vo Gomez P.Ca.pa.a.D.H.Ca.pora.perez a.F.Ca.poverde Queza.a.S.Ca.elli L.Ca.riotti a.Ca.bone G.Ca.boni R.Ca.dina.e a.Ca.dini P.Ca.niti L.Ca.us a.Ca.a.s Vida. R.Ca.pa.y G.Ca.se M.Ca.ta.eo G.Ca.a.lero V.Ca.a.lini S.Cela.i J.Cera.oli D.Cervenkov a.J.Cha.wick M.G.Cha.ma. M.Cha.les Ph.Cha.pentier C.a.Cha.ez Ba.a.a. M.Chefdeville C.Chen S.Chen a.Chernov S.Chernyshenko V.Choba.ova.S.Chola. M.Chrza.zcz a.Chubykin V.Chulikov P.Cia.brone M.F.Cica.a.X.Cid Vida. G.Cieza.ek G.Ciullo P.E.L.Cla.ke M.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.a.B.Coelho J.Coga. E.Cognera Centro Bra.ileiro de Pesquisa. Física.(CBPF) Rio de JaneiroBrazil Universida.e Federa. do Rio de Ja.eiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina Institute Of High Energy Physics(IHEP) BeijingChina School of Physics Sta.e Key La.ora.ory of Nuclea. Physics a.d Technology Peking UniversityBeijingChina University of Chinese a.a.emy of Sciences BeijingChina Institute of Pa.ticle Physics Central China Normal UniversityWuhanHubeiChina Université Sa.oie Mont Bla.c CNRSIN2P3-LAPPAnnecyFrance UniversitéClermont a.vergne CNRS/IN2P3LPCClermont-FerrandFrance a.x Ma.seille Univ CNRS/IN2P3CPPMMarseilleFrance UniversitéPa.is-Sa.la. CNRS/IN2P3IJCLabOrsayFrance La.ora.oire Leprince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance LPNHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physika.isches Institut RWTH Aachen UniversityAachenGermany Fa.ulta. Physik Technische Universitat DortmundDortmundGermany Ma.-Pla.ck-Institut für Kernphysik(MPIK) HeidelbergGermany Physika.isches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland INFN Sezione di Ba.i BariItaly INFN Sezione di Bologna BolognaItaly INFN Sezione di Ferra.a FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN La.ora.ori Na.iona.i di Fra.ca.i FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Mila.o MilanoItaly INFN Sezione di Mila.o-Bicocca MilanoItaly INFN Sezione di Ca.lia.i MonserratoItaly Universitàdegli Studi di Pa.ova Universitàe INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma.La.Sa.ienza RomaItaly INFN Sezione di Roma.Tor Verga.a RomaItaly Nikhef Na.iona. Institute for Suba.omic Physics AmsterdamNetherlands Nikhef Na.iona. Institute for Suba.omic Physics a.d VU University a.sterda. AmsterdamNetherlands a.H-University of Science a.d Technology Faculty of Physics and Applied Computer Scienc

a.sea.ch for the ra.e deca.s W^(+)→D_(s)^(+)γ a.d Z→D0γis performed using proton-proton collision da.a.collected by the LHCb experiment a. a.centre-of-ma.s energy of 13TeV,corresponding to a. integra.ed luminosity of 2.0fb−*** significa.t signa. is observed for either deca. mode a.d upper limits on their bra.ching fra.tions a.e set using W^(+)→D_(s)^(+)γ a.d Z→μ+μ−deca.s a. norma.iza.ion *** upper limits a.e 6.5×10^(−4) a.d 2.1×10^(−3) a. 95% confidence level for the W^(+)→D_(s)^(+)γ a.d Z→D^(0)γ deca. modes,*** is the first reported sea.ch for the Z→D^(0)γ deca.,while the upper limit on the W+→D+sγbra.ching fra.tion improves upon the previous best limit.

关键词： W/Z boson ra.e deca. upper limit of bra.ching fra.tion

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Sea.ch for the doubly hea.y ba.yon Ξ_(bc)^(+)→ deca.ing to J/ψΞ_(c)^(+)

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中国物理C:英文版 2023年第9期47卷 1-13页

作者： R.a.ij a.S.W.a.delmotteleb C.a.ella. Beteta.F.a.udinén T.a.kernley B.a.eva.M.a.inolfi H.a.sha.nia.C.a.a.opoulou C.a.a.da.a.S.a.ola.Z.a.a.touni S.a.a. K.a.iba.J.a.brecht F.a.essio M.a.exa.der a.a.fonso a.bero Z.a.iouche P.a.va.ez Ca.telle S.a.a.o J.L.a.ey Y.a.his L.a. L.a.derlini M.a.dersson a.a.dreia.ov M.a.dreotti D.a.dreou D.a. F.a.chilli a.a.ta.onov M.a.tuso E.a.la.ides M.a.zeni B.a.durier S.Ba.hma.n M.Ba.hma.er J.J.Ba.k a.Ba.lly-reyre P.Ba.a.ron Rodriguez V.Ba.a.ura.W.Ba.dini J.Ba.tista.de Souza.Leite M.Ba.betti R.J.Ba.low S.Ba.suk W.Ba.ter M.Ba.tolini F.Ba.yshnikov J.M.Ba.els G.Ba.si B.Ba.sukh a.Ba.tig a.Ba. a.Beck M.Becker F.Bedeschi I.B.Bedia.a.a.Beiter V.Bela.in S.Belin V.Bellee K.Belous I.Belov I.Belya.v G.Bencivenni E.Ben-Ha.m a.Berezhnoy *** D.Berninghoff H.C.Bernstein C.Bertella.a.Bertolin C.Beta.court F.Betti Ia.Bezshyiko S.Bha.in J.Bhom L.Bia. M.S.Bieker N.V.Biesuz S.Bifa.i P.Billoir a.Biolchini M.Birch F.C.R.Bishop a.Bita.ze a.Bizzeti M.P.Bla.o T.Bla.e F.Bla.c S.Blusk D.Bobulska.J.a.Boelha.ve O.Boente Ga.cia.T.Boettcher a.Boldyrev N.Bonda. S.Borghi M.Borsa.o J.T.Borsuk S.a.Bouchiba.T.J.V.Bowcock a.Boyer C.Bozzi M.J.Bra.ley S.Bra.n a.Brea.Rodriguez J.Brodzicka.a.Brossa.Gonza.o D.Brundu a.Buona.ra.L.Buonincontri a.T.Burke C.Burr a.Bursche a.Butkevich J.S.Butter J.Buyta.rt W.Byczynski S.Ca.eddu H.Ca. R.Ca.a.rese L.Ca.efice S.Ca.i R.Ca.la.ine M.Ca.vi M.Ca.vo Gomez P.Ca.a.go Ma.a.ha.s P.Ca.pa.a.D.H.Ca.pora.perez a.F.Ca.poverde Queza.a.S.Ca.elli L.Ca.riotti a.Ca.bone G.Ca.boni R.Ca.dina.e a.Ca.dini I.Ca.li P.Ca.niti L.Ca.us a.Ca.a.s Vida. R.Ca.pa.y G.Ca.se M.Ca.ta.eo G.Ca.a.lero V.Ca.a.lini S.Cela.i J.Cera.oli D.Cervenkov a.J.Cha.wick M.G.Cha.ma. M.Cha.les Ph.Cha.pentier C.a.Cha.ez Ba.a.a. M.Chefdeville C.Chen S.Chen a.Chernov S.Chernyshenko V.Choba.ova.S.Chola. M.Chrza.zcz a.Chubykin V.Chulikov P.Cia.brone M.F.Cica.a.X.Cid Vida. G.Cieza.ek G.Ciullo P.E.L.Cla.ke M.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.a.B.Coelho J.Coga. E.Cognera. L.Cojoca.iu P.Collins T.Colombo L.Congedo a.Contu N.Cooke Centro Bra.ileiro de Pesquisa. Física.(CBPF) Rio de JaneiroBrazil Universida.e Federa. do Rio de Ja.eiro(UFRJ) Rio de JaneiroBrazil Center for High Energy Physics Tsinghua UniversityBeijingChina Institute Of High Energy Physics(IHEP) BeijingChina School of Physics Sta.e Key La.ora.ory of Nuclea. Physics a.d Technology Peking UniversityBeijingChina University of Chinese a.a.emy of Sciences BeijingChina Institute of Pa.ticle Physics Central China Normal UniversityWuhanHubeiChina Université Sa.oie Mont Bla.c CNRSIN2P3-LAPPAnnecyFrance UniversitéClermont a.vergne CNRS/IN2P3LPCClermont-FerrandFrance a.x Ma.seille Univ CNRS/IN2P3CPPMMarseilleFrance UniversitéPa.is-Sa.la. CNRS/IN2P3IJCLabOrsayFrance La.ora.oire Leprince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance LPNHE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physika.isches Institut RWTH Aachen UniversityAachenGermany Fa.ultät Physik Technische Universität DortmundDortmundGermany Ma.-Pla.ck-Institut für Kernphysik(MPIK) HeidelbergGermany Physika.isches Institut Ruprecht-Karls-Universität HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland INFN Sezione di Ba.i BariItaly INFN Sezione di Bologna BolognaItaly INFN Sezione di Ferra.a FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN La.ora.ori Na.iona.i di Fra.ca.i FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Mila.o MilanoItaly INFN Sezione di Mila.o-Bicocca MilanoItaly INFN Sezione di Ca.lia.i MonserratoItaly Universitàdegli Studi di Pa.ova Universitàe INFNPadovaPadovaItaly INFN Sezione di Pisa PisaItaly INFN Sezione di Roma.La.Sa.ienza RomaItaly INFN Sezione di Roma.Tor Verga.a RomaItaly Nikhef Na.iona. Institute for Suba.omic Physics AmsterdamNetherlands Nikhef Na.iona. Institute for Suba.omic Physics a.d VU University a.sterda. AmsterdamNetherlands a.H-University of Science a.d Technology Faculty of Physics and Applied Computer Scienc

a.first sea.ch for the Ξ_(bc)^(+)J/ψΞ_(c)^(+) deca. is performed by the LHCb experiment with a.da.a.sa.ple of proton-proton collisions, corresponding to a. integra.ed luminosity of 9 fb−1 recorded a. centre-of-ma.s energies of 7, 8, a.d 13 TeV. Two pea.ing structures a.e seen with a.loca. (globa.) significa.ce of 4.3(2.8) a.d 4.1(2.4) sta.da.d devia.ions a. ma.ses of 6571 a.d 6694 MeV/c2, respectively. Upper limits a.e set on the Ξ+bc ba.yon production cross-section times the bra.ching fra.tion rela.ive to tha. of the B+c→J/ψD+s deca. a. centre-of-ma.s energies of 8 a.d 13 TeV, in the Ξ+bc a.d in the B+c ra.idity a.d tra.sverse-momentum ra.ges from 2.0 to 4.5 a.d 0 to 20GeV/c, respectively. Upper limits a.e presented a. a.function of the Ξ+bc ma.s a.d lifetime.

关键词： QCD B physics cha.m physics spectroscopy

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