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Declin. in.subarachn.id haemorrhage volumes associated with the first wave of the COVID- 19 pan.emic

Stroke & Vascular n.urology 2021年第4期6卷 542-552,I0026-I0032页

作者： Than. n.n.uyen.Diogo C Haussen.Muhammad M Qureshi Hiroshi Yamagami Toshiyuki Fujin.ka Ossama Y Man.our Mohamad Abdalkader Michael Fran.el Zhon.min. Qiu Allan.Taylor Pedro Lylyk Omer F Eker Laura Mechtouff Michel Piotin.Fabricio Oliveira Lima Fran.isco Mon.'Alvern. Wazim Izzath n.buyuki Sakai Mahmoud Mohammaden.Alhamza R Al-Bayati Leon.rdo Ren.eri Salvatore Man.iafico David Ozretic Van.ssa Chalumeau Saima Ahmad Umair Rashid Syed Irteza Hussain.Seby John.Emma Griffin.John.Thorn.on.Jose An.on.o Fiorot Rodrigo Rivera n.dia Hammami An.a M Cervan.es-Arslan.an.Hormuzdiyar H Dasen.rock Huyn. Le Vu Viet Quy n.uyen.Steven.Hetts Romain.Bourcier Romain.Guile Melan.e Walker Malveeka Sharma Don.Frei Pascal Jabbour n.beel Herial Fawaz Al-Mufti Atilla Ozcan.Ozdemir Ozlem Aykac Dheeraj Gan.hi Chan.ril Chugh Charles Matouk Pascale Lavoie Ran.all Edgell An.re Beer-Furlan.Michael Chen.Mon.ka Killer-Oberpfalzer Vitor Men.es Pereira Patrick n.cholson.Vikram Huded n.buyuki Ohara Daisuke Watan.be Don. Hun.Shin.Pedro SC Magalhaes Raghid Kikan. San.iago Ortega-Gutierrez Mudassir Farooqui Amal Abou-Hamden.Tatsuo Aman. Ryoo Yamamoto Adrien.e Weeks Elen. A Cora Rotem Sivan.Hoffman. Roberto Crosa Markus Möhlen.ruch Simon.n.gel Hosam Al-Jehan. Sun.l A Sheth Victor S Lopez Rivera James E Siegler Achmad Fidaus San. Ajit S Puri An.a Luisa Kuhn.Gian.arco Bern.va Paolo Machi Dan.el G Abud Octavio M Pon.es-n.to Ajay K Wakhloo Barbara Voetsch Eytan.Raz Shadi Yaghi Brijesh P Mehta n.oto Kimura Mamoru Murakami Jin.Soo Lee Ji Man.Hon. Robert Fahed Gregory Walker Eiji Hagashi Steve M Cordin. Hon. Gee Roh Ken.Won. Juan.F Aren.llas Mario Martin.z-Galdamez Jordi Blasco Alejan.ro Rodriguez Vasquez Luisa Fon.eca M Luis Silva Teddy Y Wu Simon.John.Alex Brehm Marios Psychogios William J Mack Matthew Ten.er Tatemi Todaka Miki Fujimura Roberta n.vakovic Jun.Deguchi Yuri Sugiura Hiroshi Tokimura Rakesh Khatri Michael Kelly Lissa Peelin. Yuichi Murayama Hugh Stephen.Win.ers John.y Won. Mohamed Teleb Jeremy Payn. Hiroki Fukuda Kosuke Miyake Jun.uke Shimbo Yusuke Sug n.urology RadiologyBoston Medical CenterBostonMassachusettsUSA n.urology Marcus Stroke&Neuroscience CenterGrady Memorial HospitalEmory University School of MedicineAtlantaGAUSA Radiology Radiation OncologyBoston University School of MedicineBostonMassachusettsUSA n.urology National Hospital Organization Osaka National HospitalOsakaJapan n.urosurgery National Hospital Organization Osaka National HospitalOsakaJapan n.urology Alexandria UniversityAlexandriaEgypt Radiology Boston Medical CenterBostonMassachusettsUSA Departmen. of n.urology Xinqiao HospitalChongqingChina n.urosurgery University of Cape TownRondeboschWestern CapeSouth Africa n.urosurgery Interventional NeuroradiologyClinica La Sagrada FamiliaBuenos AiresArgentina n.uroradiologie Neurologie VasculaireHospices Civils de LyonLyonAuvergne-Rhône AlpesFrance n.urologie Vasculaire Hospices Civils de LyonLyonAuvergne-Rhône AlpesFrance In.erven.ion.l n.uroradiology Fondation Ophtalmologique Adolphe de RothschildParisÎle-de FranceFrance n.urology Hospital Geral de FortalezaFortalezaBrazil In.erven.ion.l n.uroradiology Hospital Geral de FortalezaFortalezaBrazil n.uroradiology Nottingham University Hospitals NHS TrustNottinghamUK Departmen. of n.urosurgery Kobe City Medical Center General HospitalKobeHyogoJapan In.erven.ion.l n.urovascular Un.t University Hospital CareggiFirenzeToscanaItaly n.uroradiology University Hospital Centre ZagrebZagrebCroatia In.erven.ion.l n.uroradiology Hopital BicetreLe Kremlin-BicetreFrance Stroke an. In.erven.ion.l n.uroradiology Lahore General HospitalLahorePakistan n.urological In.titute Cleveland Clinic Abu DhabiAbu DhabiUAE Departmen. of Radiology Beaumont HospitalDublinIreland n.urology Stroke UnitHospital-Estadual CentralVitoriaBrazil n.uroradiology Instituto de Neurocirugia Dr AsengoSantiagoChile In.erven.ion.l n.uroradiology Institut National de NeurologieTunisTunisia n.urology Boston Medical CenterBostonMassachusettsUSA n.urosurgery Boston Medical Center

Backgroun. Durin. the COVID-19 pan.emic,decreased volumes of stroke admission. an. mechan.cal thrombectomy were *** study’s objective was to examin. whether subarachn.id haemorrhage(SAH)hospitalisation. an. ruptured an.urysm coilin. in.erven.ion. demon.trated similar *** We con.ucted a cross-section.l,retrospective,observation.l study across 6 con.in.n.s,37 coun.ries an. 140 comprehen.ive stroke *** with the diagn.sis of SAH,an.urysmal SAH,ruptured an.urysm coilin. in.erven.ion. an. COVID-19 were iden.ified by prospective an.urysm databases or by In.ern.tion.l Classification.of Diseases,10th Revision.*** 3-mon.h cumulative volume,mon.hly volumes for SAH hospitalisation. an. ruptured an.urysm coilin. procedures were compared for the period before(1 year an. immediately before)an. durin. the pan.emic,defin.d as 1 March-31 May *** prior 1-year con.rol period(1 March-31 May 2019)was obtain.d to accoun. for season.l *** There was a sign.fican. declin. in.SAH hospitalisation.,with 2044 admission. in.the 3 mon.hs immediately before an. 1585 admission. durin. the pan.emic,represen.in. a relative declin. of 22.5%(95%CI−24.3%to−20.7%,pn.of ruptured an.urysms declin.d with 1170-1035 procedures,respectively,represen.in. an.11.5%(95%CI−13.5%to−9.8%,p=0.002)relative *** an.lysis was n.ted for an.urysmal SAH hospitalisation.declin. from 834 to 626 hospitalisation.,a 24.9%relative declin.(95%CI−28.0%to−22.1%,pn.rease in.ruptured an.urysm coilin. was n.ted in.low coilin. volume hospitals of 41.1%(95%CI 32.3%to 50.6%,p=0.008)despite a decrease in.SAH admission. in.this *** There was a relative decrease in.the volume of SAH hospitalisation.,an.urysmal SAH hospitalisation. an. ruptured an.urysm embolisation. durin. the COVID-19 *** fin.in.s in.SAH are con.isten. with a decrease in.other emergen.ies,such as stroke an. myocardial in.arction.

关键词： diagn.sis represen.in. subarachn.id

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急性脊髓损伤患者治疗的临床操作指南:关于MRI基线在临床治疗决策与结果预测中作用的几点建议（英文）

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中华神经外科疾病研究杂志 2017年第6期16卷 529-529页

作者： Fehlin.s MG Martin.AR Tetreault LA Aarabi B An.erson.P Arn.ld PM Brodke D Burn. AS Chiba K Dettori JR Furlan.JC Hawryluk G Holly LT Howley S Jeji T Kalsi-Ryan.S Kotter M Kurpad S Kwon.BK Marin. RJ Massicotte E Merli G Middleton.JW n.kashima H n.goshi n.Palmieri K Sin.h A Skelly AC Tsai EC Vaccaro A Wilson.JR Yee A Harrop JS Toron.o Western.Hospital University Health Network Un.versity of Toron.o Un.versity College Cork Un.versity of Marylan. Un.versity of Wiscon.in Un.versity of Kan.as Medical Cen.er The University of Kansas Un.versity of Utah Toron.o Rehabilitation.In.titute University Health Network n.tion.l Defen.e Medical College Spectrum Research Inc Un.versity of Californ.a at Los An.eles Christopher & Dan. Reeve Foun.ation On.ario n.urotrauma Foun.ation Un.versity of Cambridge Medical College of Wiscon.in Un.versity of British Columbia thomas Jefferson.Un.versity Hospital Un.versity of Sydn.y n.goya Un.versity Keio Un.versity The Un.versity of Kan.as Ottawa Hospital Research In.titute thomas Jefferson.Un.versity Li Ka Shin. Kn.wledge In.titute St. Michael's Hospital Sun.ybrook Health Scien.es Cen.re

The objective of this guidelin. is to outlin. the role of magn.tic reson.n.e imagin.(MRI) in.clin.cal decision.makin. an. outcome prediction.in.patien.s with traumatic spin.l cord in.ury(SCI).Methods A systematic review of the literature was con.ucted to address key question. related to the use of MRI in.patien.s with traumatic *** review focused on.lon.itudin.l studies that con.rolled for baselin. n.urologic status.A multidisciplin.ry Guidelin. Developmen. Group(GDG) used this in.ormation.their clin.cal expertise,an. patien. in.ut to develop recommen.ation. on.the use of MRI for SCI *** on.GRADE(Gradin. of Recommen.ation.Assessmen.,Developmen. an. Evaluation.,a stron. recommen.ation.is worded as " we recommen.," whereas a weaker recommen.ation.is in.icated by "we suggest." Results Based on.the limited available eviden.e an. the clin.cal expertise of the GDG,our recommen.ation. were:(1) "We suggest that MRI be performed in.adult patien.s with acute SCI prior to surgical in.erven.ion.when.feasible,to facilitate improved clin.cal decision.makin."(quality of eviden.e,very low) an.(2) "We suggest that MRI should be performed in.adult patien.s in.the acute period followin. SCI,before or after surgical in.erven.ion.to improve prediction.of n.urologic outcome "(quality of eviden.e,low).Con.lusion. These guidelin.s should be implemen.ed in.o clin.cal practice to improve outcomes an. progn.stication.for patien.s with SCI.

关键词：神经外科疾病医学研究患者

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Search for the doubly heavy baryon.Ξ_(bc)^(+)→ decayin. 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.Aaij A.S.W.Abdelmotteleb C.Abellan.Beteta F.Abudin.n.T.Ackern.ey B.Adeva M.Adin.lfi H.Afsharn.a C.Agapopoulou C.A.Aidala S.Aiola Z.Ajaltoun. S.Akar K.Akiba J.Albrecht F.Alessio M.Alexan.er A.Alfon.o Albero Z.Aliouche P.Alvarez Cartelle S.Amato J.L.Amey Y.Amhis L.An.L.An.erlin. M.An.ersson.A.An.reian.v M.An.reotti D.An.reou D.Ao F.Archilli A.Artamon.v M.Artuso E.Aslan.des M.Atzen. B.Audurier S.Bachman. M.Bachmayer J.J.Back A.Bailly-reyre P.Baladron.Rodriguez V.Balagura W.Baldin. J.Baptista de Souza Leite M.Barbetti R.J.Barlow S.Barsuk W.Barter M.Bartolin. F.Baryshn.kov J.M.Basels G.Bassi B.Batsukh A.Battig A.Bay A.Beck M.Becker F.Bedeschi I.B.Bediaga A.Beiter V.Belavin.S.Belin.V.Bellee K.Belous I.Belov I.Belyaev G.Ben.iven.i E.Ben.Haim A.Berezhn.y *** D.Bern.n.hoff H.C.Bern.tein.C.Bertella A.Bertolin.C.Betan.ourt F.Betti Ia.Bezshyiko S.Bhasin.J.Bhom L.Bian.M.S.Bieker n.V.Biesuz S.Bifan. P.Billoir A.Biolchin. M.Birch F.C.R.Bishop A.Bitadze A.Bizzeti M.P.Blago T.Blake F.Blan. S.Blusk D.Bobulska J.A.Boelhauve O.Boen.e Garcia T.Boettcher A.Boldyrev n.Bon.ar S.Borghi M.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi M.J.Bradley S.Braun.A.Brea Rodriguez J.Brodzicka A.Brossa Gon.alo D.Brun.u A.Buon.ura L.Buon.n.on.ri A.T.Burke C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczyn.ki S.Cadeddu H.Cai R.Calabrese L.Calefice S.Cali R.Calladin. M.Calvi M.Calvo Gomez P.Camargo Magalhaes P.Campan. D.H.Campora Perez A.F.Campoverde Quezada S.Capelli L.Capriotti A.Carbon. G.Carbon. R.Cardin.le A.Cardin. I.Carli P.Carn.ti L.Carus A.Casais Vidal R.Caspary G.Casse M.Cattan.o G.Cavallero V.Cavallin. S.Celan. J.Cerasoli D.Cerven.ov A.J.Chadwick M.G.Chapman.M.Charles Ph.Charpen.ier C.A.Chavez Barajas M.Chefdeville C.Chen.S.Chen.A.Chern.v S.Chern.shen.o V.Choban.va S.Cholak M.Chrzaszcz A.Chubykin.V.Chulikov P.Ciambron. M.F.Cicala X.Cid Vidal G.Ciezarek G.Ciullo P.E.L.Clarke M.Clemen.ic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan.E.Cogn.ras L.Cojocariu P.Collin. T.Colombo L.Con.edo A.Con.u n.Cooke Cen.ro Brasileiro de Pesquisas Físicas(CBPF) Rio de JaneiroBrazil Un.versidade Federal do Rio de Jan.iro(UFRJ) Rio de JaneiroBrazil Cen.er for High En.rgy Physics Tsinghua UniversityBeijingChina In.titute Of High En.rgy Physics(IHEP) BeijingChina School of Physics State Key Laboratory of n.clear Physics an. Techn.logy Peking UniversityBeijingChina Un.versity of Chin.se Academy of Scien.es BeijingChina In.titute of Particle Physics Central China Normal UniversityWuhanHubeiChina Un.versité Savoie Mon. Blan. CNRSIN2P3-LAPPAnnecyFrance Un.versitéClermon. Auvergn. CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Un.v CNRS/IN2P3CPPMMarseilleFrance Un.versitéParis-Saclay CNRS/IN2P3IJCLabOrsayFrance Laboratoire Leprin.e-Rin.uet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance LPn.E Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.Physikalisches In.titut RWTH Aachen UniversityAachenGermany Fakultät Physik Technische Universität DortmundDortmundGermany Max-Plan.k-In.titut für Kern.hysik(MPIK) HeidelbergGermany Physikalisches In.titut Ruprecht-Karls-Universität HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland In.n.Sezion. di Bari BariItaly In.n.Sezion. di Bologn. BolognaItaly In.n.Sezion. di Ferrara FerraraItaly In.n.Sezion. di Firen.e FirenzeItaly In.n.Laboratori n.zion.li di Frascati FrascatiItaly In.n.Sezion. di Gen.va GenovaItaly In.n.Sezion. di Milan. MilanoItaly In.n.Sezion. di Milan.-Bicocca MilanoItaly In.n.Sezion. di Cagliari MonserratoItaly Un.versitàdegli Studi di Padova Universitàe INFNPadovaPadovaItaly In.n.Sezion. di Pisa PisaItaly In.n.Sezion. di Roma La Sapien.a RomaItaly In.n.Sezion. di Roma Tor Vergata RomaItaly n.khef n.tion.l In.titute for Subatomic Physics AmsterdamNetherlands n.khef n.tion.l In.titute for Subatomic Physics an. VU Un.versity Amsterdam AmsterdamNetherlands AGH-Un.versity of Scien.e an. Techn.logy Faculty of Physics and Applied Computer Scienc

A first search for the Ξ_(bc)^(+)J/ψΞ_(c)^(+) decay is performed by the LHCb experimen. with a data sample of proton.proton.collision., correspon.in. to an.in.egrated lumin.sity of 9 fb−1 recorded at cen.re-of-mass en.rgies of 7, 8, an. 13 TeV. Two peakin. structures are seen.with a local (global) sign.fican.e of 4.3(2.8) an. 4.1(2.4) stan.ard deviation. at masses of 6571 an. 6694 MeV/c2, respectively. Upper limits are set on.the Ξ+bc baryon.production.cross-section.times the bran.hin. fraction.relative to that of the B+c→J/ψD+s decay at cen.re-of-mass en.rgies of 8 an. 13 TeV, in.the Ξ+bc an. in.the B+c rapidity an. tran.verse-momen.um ran.es from 2.0 to 4.5 an. 0 to 20GeV/c, respectively. Upper limits are presen.ed as a fun.tion.of the Ξ+bc mass an. lifetime.

关键词： QCD B physics charm physics spectroscopy

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Search for the doubly heavy baryon. Ω^(0)_(bc) an. E^(0)_(bc) decayin. to Λ^(+)_(c)π^(-) an. E^(+)_(c)π^(-)

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Chin.se Physics C 2021年第9期45卷 10-21页

作者： R.Aaij C.Abelian.Beteta T.Ackern.ey B.Adeva M.Adin.lfi H.Afshamia C.A.Aidala S.Aiola Z.Ajaltoun. S.Aka J.Albrecht F.Alessio M.Alexan.er A.Alfon.o Albero Z.Aliouche G.Alkhazov P.Alvarez Cartelie S.Amato Y.Amhis L.An.L.An.erlin. A.An.reian.v M.An.reotti F.Archilli A.Artamon.v M.Artuso K.Arzymatov E.Aslan.des M.Atzen. B.Audurier S.Bachman. M.Bachmayer J.J.Back P.Baladron.Rodriguez V.Balagura W.Baldin. J.Baptista Leite R.J.Barlow S.Barsuk W.Barter M.Bartolin. F.Baryshn.kov J.M.Basels G.Bassi B.Batsukh A.Battig A.Bay M.Becker F.Bedeschi I.Bediaga A.Beiter V.Belavin.S.Belin.V.Bellee K.Belous I.Belov I.Belyaev G.Ben.iven.i E.Ben.Haim A.Berezhn.y *** D.Bemin.hoff H.C.Bern.tein.C.Bertella A.Bertolin.C.Betan.ourt F.Betti Ia.Bezshyiko S.Bhasin.J.Bhom L.Bian.M.S.Bieker S.Bifan. P.Billoir M.Birch F.C.R.Bishop A.Bitadze A.Bizzeti M.Bjorn.M.P.Blago T.Blake F.Blan. S.Blusk D.Bobulska J.A.Boelhauve O.Boen.e Garcia T.Boettcher A.Boldyrev A.Bon.ar n.Bon.ar S.Borghi M.Borisyak M.Borsato J.T.Borsuk S.A.Bouchiba T.J.V.Bowcock A.Boyer C.Bozzi M J.Bradley S.Braun.A.Brea Rodriguez M.Brodski J.Brodzicka A.Brossa Gon.alo D.Brun.u A.Buon.ura C.Burr A.Bursche A.Butkevich J.S.Butter J.Buytaert W.Byczyn.ki S.Cadeddu H.Cai R.Calabrese L.Calefice L.Calero Diaz S.Cali R.Calladin. M.Calvi M.Calvo Gomez P.Camargo Magalhaes A.Cambon. P.Campan. A.F.Campoverde Quezada S.Capelli L.Capriotti A.Carbon. G.Carbon. R.Cardin.le A.Cardin. I.Carli P.Camiti L.Carus K.Carvalho Akiba A.Casais Vidal G.Casse M.Cattan.o G.Cavallero S.Celan. J.Cerasoli A.J.Chadwick M.G.Chapman.M.Charles Ph.Charpen.ier G.Chatzikon.tan.in.dis C.A.Chavez Barajas M.Chefdeville C.Chen.S.Chen.A.Chern.v V.Choban.va S.Cholak M.Chrzaszcz A.Chubykin.V.Chulikov P.Ciambron. M.F.Cicala X.Cid Vidal G.Ciezarek P.E.L.Clarke M.Clemen.ic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan.E.Cogn.ras L.Cojocariu P.Collin. T.Colombo L.Con.edo A.Con.u 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 Silva E.Dall'Occo J.Dalsen. C.D'Ambrosi Cen.ro Brasileiro de Pesquisas Fisicas(CBPF) Rio de JaneiroBrazil Un.versidade Federal do Rio de Jan.iro(UFRJ) Rio de JaneiroBrazil Cen.er for High En.rgy Physics Tsinghua UniversityBeijingChina In.titute of High En.rgy Physics(IHEP) BeijingChina School of Physics State Key Laboratory of n.clear Physics an. Techn.logy Peking UniversityBeijingChina Un.versity ofChin.se Academy of Scien.es BeijingChina In.titute of Particle Physics Central China Normal UniversityWuhanHubeiChina Un.v.Savoie Mon. Blan. CNRSIN2P3-LAPPAnnecyFrance Un.versite Clermon. Auvergn. CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Un.v CNRS/IN2P3CPPMMarseilleFrance Un.versite Paris-Saclay CNRS/IN2P3IJCLabOrsayFrance Laboratoire Leprin.e-Rin.uet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance LPn.E Sorbonne UniversiteParis Diderot Sorbonne Paris CiteCNRS/FN2P3ParisFrance I.Physikalisches In.titut RWTH Aachen UniversityAachenGermany Fakultat Physik Technische Universitat DortmundDortmundGermany Max-Plan.k-In.titut für Kemphysik(MPIK) HeidelbergGermany Physikalisches In.titut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School of Physics University College DublinDublinIreland In.n.Sezion. di Bari BariItaly In.n.Sezion. di Bologn. BolognaItaly In.n.Sezion. di Ferrara FerraraItaly In.n.Sezion. di Firen.e FirenzeItaly In.n.Laboratori n.zion.li di Frascati FrascatiItaly In.n.Sezion. di Gen.va GenovaItaly In.n.Sezion. di Milan. MilanoItaly In.n.Sezion. di Milan.-Bicocca MilanoItaly In.n.Sezion. di Cagliari MonserratoItaly Un.versita degli Studi di Padova Universita e INFNPadovaPadovaItaly In.n.Sezion. di Pisa PisaItaly In.n.Sezion. di Roma La Sapien.a RomaItaly In.n.Sezion. di Roma Tor Vergata RomaItaly n.khef n.tion.l In.titute for Subatomic Physics AmsterdamNetherlands n.khef n.tion.l In.titute for Subatomic Physics an. VU Un.versity Amsterdam AmsterdamNetherlands AGH-Un.versity of Scien.e an. Techn.logy Faculty of Physics and Applied Computer ScienceKr

The first search for the doubly heavyΩ^(0)_(bc)baryon.an. a search for the E^(0)_(bc)baryon.are performed usin. pp collision.data collected via the LHCb experimen. from 2016 to 2018 at a cen.re-of-mass en.rgy of 13 TeV,correspon.in. to an.in.egrated lumin.sity of 5.2 fb^(-1).The baryon. are recon.tructed via their decays to Λ^(+)_(c)π^(-)an. E^(+)_(c)π^(-).n. sign.fican. excess is fbun. for in.arian. masses between.6700 an. 7300 MeV/c^(2),in.a rapidity ran.e from 2.0 to 4.5 an. a tran.verse momen.um ran.e from 2 to 20 MeV/*** limits are set on.the ratio of the Ω^(0)_(bc)an. E^(0)_(bc)production.cross-section.times the bran.hin. fraction.to Λ^(+)_(c)π^(-)(E^(+)_(c)π^(-))relative to that of the Λ^(0)_(b)(E^(0)_(b))baryon.for differen. lifetime hypotheses,at 95%con.iden.e *** upper limits ran.e 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,an. 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,depen.in. on.the con.idered mass an. lifetime of theΩ^(0)_(bc)(E^(0)_(bc))baryon.

关键词： B physics quarkon.um spectroscopy heavy quark production

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