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- Search for the doubly heavy baryonΞbc+→decaying to J/ψΞc+ 认领 引用 被引量：2
- 1
- 作者 R.Aaij A.S.W.Abdelmotteleb +1013 位作者 C.Abellan Beteta F.Abudinén T.Ackernley B.Adeva M.Adinolfi H.Afsharnia C.Agapopoulou C.A.Aidala S.Aiola Z.Ajaltouni S.Akar K.Akiba J.Albrecht F.Alessio M.Alexander A.Alfonso Albero Z.Aliouche P.Alvarez Cartelle S.Amato J.L.Amey Y.Amhis L.An L.Anderlini M.Andersson A.Andreianov M.Andreotti D.Andreou D.Ao F.Archilli A.Artamonov M.Artuso E.Aslanides M.Atzeni B.Audurier S.Bachmann M.Bachmayer J.J.Back A.Bailly-reyre P.Baladron Rodriguez V.Balagura W.Baldini J.Baptista de Souza Leite M.Barbetti R.J.Barlow S.Barsuk W.Barter M.Bartolini F.Baryshnikov 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.Bencivenni E.Ben-Haim A.Berezhnoy R.Bernet D.Berninghoff H.C.Bernstein C.Bertella A.Bertolin C.Betancourt F.Betti Ia.Bezshyiko S.Bhasin J.Bhom L.Bian M.S.Bieker N.V.Biesuz S.Bifani P.Billoir A.Biolchini M.Birch F.C.R.Bishop A.Bitadze A.Bizzeti M.P.Blago T.Blake F.Blanc S.Blusk D.Bobulska J.A.Boelhauve O.Boente Garcia T.Boettcher A.Boldyrev N.Bondar 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 Gonzalo 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.Calabrese L.Calefice S.Cali R.Calladine M.Calvi M.Calvo Gomez P.Camargo Magalhaes P.Campana D.H.Campora Perez A.F.Campoverde Quezada S.Capelli L.Capriotti A.Carbone G.Carboni R.Cardinale A.Cardini I.Carli P.Carniti L.Carus A.Casais Vidal R.Caspary G.Casse M.Cattaneo G.Cavallero V.Cavallini S.Celani J.Cerasoli D.Cervenkov A.J.Chadwick M.G.Chapman M.Charles Ph.Charpentier C.A.Chavez Barajas M.Chefdeville C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Cholak M.Chrzaszcz A.Chubykin V.Chulikov P.Ciambrone M.F.Cicala X.Cid Vidal G.Ciezarek G.Ciullo P.E.L.Clarke M.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cogneras L.Cojocariu P.Collins T.Colombo L.Congedo A.Contu N.Cooke G.Coombs I.Corredoira G.Corti B.Couturier D.C.Craik J.Crkovská M.Cruz Torres R.Currie C.L.Da Silva S.Dadabaev L.Dai E.Dall'Occo J.Dalseno C.D'Ambrosio A.Danilina P.d'Argent J.E.Davies A.Davis O.De Aguiar Francisco J.de Boer K.De Bruyn S.De Capua M.De Cian U.De Freitas Carneiro Da Graca E.De Lucia J.M.De Miranda L.De Paula M.De Serio D.De Simone P.De Simone F.De Vellis J.A.de Vries C.T.Dean F.Debernardis D.Decamp V.Dedu L.Del Buono B.Delaney H.-P.Dembinski V.Denysenko O.Deschamps F.Dettori B.Dey A.Di Cicco P.Di Nezza S.Didenko L.Dieste Maronas S.Ding V.Dobishuk A.Dolmatov C.Dong A.M.Donohoe F.Dordei A.C.dos Reis L.Douglas A.G.Downes M.W.Dudek L.Dufour V.Duk P.Durante J.M.Durham D.Dutta A.Dziurda A.Dzyuba S.Easo U.Egede V.Egorychev S.Eidelman S.Eisenhardt S.Ek-In L.Eklund S.Ely A.Ene E.Epple S.Escher J.Eschle S.Esen T.Evans L.N.Falcao Y.Fan B.Fang S.Farry D.Fazzini M.Feo A.D.Fernez F.Ferrari L.Ferreira Lopes F.Ferreira Rodrigues S.Ferreres Sole M.Ferrillo M.Ferro-Luzzi S.Filippov R.A.Fini M.Fiorini M.Firlej K.M.Fischer D.S.Fitzgerald C.Fitzpatrick T.Fiutowski F.Fleuret M.Fontana F.Fontanelli R.Forty D.Foulds-Holt V.Franco Lima M.Franco Sevilla M.Frank E.Franzoso G.Frau C.Frei D.A.Friday J.Fu Q.Fuehring E.Gabriel G.Galati A.Gallas Torreira D.Galli S.Gambetta Y.Gan M.Gandelman P.Gandini Y.Gao M.Garau L.M.Garcia Martin P.Garcia Moreno J.García Pardiäas B.Garcia Plana F.A.Garcia Rosales L.Garrido C.Gaspar R.E.Geertsema D.Gerick L.L.Gerken E.Gersabeck M.Gersabeck T.Gershon L.Giambastiani V.Gibson H.K.Giemza A.L.Gilman M.Giovannetti A.Gioventù P.Gironella Gironell C.Giugliano M.A.Giza K.Gizdov E.L.Gkougkousis V.V.Gligorov C.Gäbel E.Golobardes D.Golubkov A.Golutvin A.Gomes S.Gomez Fernandez F.Goncalves Abrantes M.Goncerz G.Gong I.V.Gorelov C.Gotti J.P.Grabowski T.Grammatico L.A.Granado Cardoso E.Graugés E.Graverini G.Graziani A.T.Grecu L.M.Greeven N.A.Grieser L.Grillo S.Gromov B.R.Gruberg Cazon C.Gu M.Guarise M.Guittiere P.A.Günther E.Gushchin A.Guth Y.Guz T.Gys T.Hadavizadeh G.Haefeli C.Haen J.Haimberger S.C.Haines T.Halewood-leagas M.M.Halvorsen P.M.Hamilton J.Hammerich Q.Han X.Han E.B.Hansen S.Hansmann-Menzemer L.Hao N.Harnew T.Harrison C.Hasse M.Hatch J.He K.Heijhoff K.Heinicke R.D.L.Henderson A.M.Hennequin K.Hennessy L.Henry J.Heuel A.Hicheur D.Hill M.Hilton S.E.Hollitt R.Hou Y.Hou J.Hu J.Hu W.Hu X.Hu W.Huang X.Huang W.Hulsbergen R.J.Hunter M.Hushchyn D.Hutchcroft P.Ibis M.Idzik D.Ilin P.Ilten A.Inglessi A.Iniukhin A.Ishteev K.Ivshin R.Jacobsson H.Jage S.J.Jaimes Elles S.Jakobsen E.Jans B.K.Jashal A.Jawahery V.Jevtic X.Jiang M.John D.Johnson C.R.Jones T.P.Jones B.Jost N.Jurik S.Kandybei Y.Kang M.Karacson D.Karpenkov M.Karpov J.W.Kautz F.Keizer D.M.Keller M.Kenzie T.Ketel B.Khanji A.Kharisova S.Kholodenko T.Kirn V.S.Kirsebom O.Kitouni S.Klaver N.Kleijne K.Klimaszewski M.R.Kmiec S.Koliiev A.Kondybayeva A.Konoplyannikov P.Kopciewicz R.Kopecna P.Koppenburg M.Korolev I.Kostiuk O.Kot S.Kotriakhova A.Kozachuk P.Kravchenko L.Kravchuk R.D.Krawczyk M.Kreps S.Kretzschmar P.Krokovny W.Krupa W.Krzemien J.Kubat W.Kucewicz M.Kucharczyk V.Kudryavtsev G.J.Kunde D.Lacarrere G.Lafferty A.Lai A.Lampis D.Lancierini J.J.Lane R.Lane G.Lanfranchi C.Langenbruch J.Langer O.Lantwin T.Latham F.Lazzari M.Lazzaroni R.Le Gac S.H.Lee R.Lefèvre A.Leflat S.Legotin P.Lenisa O.Leroy T.Lesiak B.Leverington H.Li K.Li P.Li S.Li Y.Li Z.Li X.Liang C.Lin T.Lin R.Lindner V.Lisovskyi R.Litvinov G.Liu H.Liu Q.Liu S.Liu A.Lobo Salvia A.Loi R.Lollini J.Lomba Castro I.Longstaff J.H.Lopes S.López Soliäo G.H.Lovell Y.Lu C.Lucarelli D.Lucchesi S.Luchuk M.Lucio Martinez V.Lukashenko Y.Luo A.Lupato E.Luppi A.Lusiani K.Lynch X.-R.Lyu L.Ma R.Ma S.Maccolini F.Machefert F.Maciuc V.Macko P.Mackowiak S.Maddrell-Mander L.R.Madhan Mohan A.Maevskiy D.Maisuzenko M.W.Majewski J.J.Malczewski S.Malde B.Malecki A.Malinin T.Maltsev H.Malygina G.Manca G.Mancinelli D.Manuzzi C.A.Manzari D.Marangotto J.F.Marchand U.Marconi S.Mariani C.Marin Benito M.Marinangeli J.Marks A.M.Marshall P.J.Marshall G.Martelli G.Martellotti L.Martinazzoli M.Martinelli D.Martinez Santos F.Martinez Vidal A.Massafferri M.Materok R.Matev A.Mathad V.Matiunin C.Matteuzzi K.R.Mattioli A.Mauri E.Maurice J.Mauricio M.Mazurek M.McCann L.Mcconnell T.H.McGrath N.T.McHugh A.McNab R.McNulty J.V.Mead B.Meadows G.Meier D.Melnychuk S.Meloni M.Merk A.Merli L.Meyer Garcia M.Mikhasenko D.A.Milanes E.Millard M.Milovanovic M.-N.Minard A.Minotti S.E.Mitchell B.Mitreska D.S.Mitzel A.Mädden R.A.Mohammed R.D.Moise S.Mokhnenko T.Mombächer I.A.Monroy S.Monteil M.Morandin G.Morello M.J.Morello J.Moron A.B.Morris A.G.Morris R.Mountain H.Mu F.Muheim M.Mulder K.Müller C.H.Murphy D.Murray R.Murta P.Muzzetto P.Naik T.Nakada R.Nandakumar T.Nanut I.Nasteva M.Needham N.Neri S.Neubert N.Neufeld P.Neustroev R.Newcombe E.M.Niel S.Nieswand N.Nikitin N.S.Nolte C.Normand C.Nunez A.Oblakowska-Mucha V.Obraztsov T.Oeser D.P.O'Hanlon S.Okamura R.Oldeman F.Oliva M.E.Olivares C.J.G.Onderwater R.H.O'Neil J.M.Otalora Goicochea T.Ovsiannikova P.Owen A.Oyanguren O.Ozcelik K.O.Padeken B.Pagare P.R.Pais T.Pajero A.Palano M.Palutan Y.Pan G.Panshin A.Papanestis M.Pappagallo L.L.Pappalardo C.Pappenheimer W.Parker C.Parkes B.Passalacqua G.Passaleva A.Pastore M.Patel C.Patrignani C.J.Pawley A.Pearce A.Pellegrino M.Pepe Altarelli S.Perazzini D.Pereima A.Pereiro Castro P.Perret M.Petric K.Petridis A.Petrolini A.Petrov S.Petrucci M.Petruzzo H.Pham A.Philippov R.Piandani L.Pica M.Piccini B.Pietrzyk G.Pietrzyk M.Pili D.Pinci F.Pisani M.Pizzichemi V.Placinta J.Plews M.Plo Casasus F.Polci M.Poli Lener M.Poliakova A.Poluektov N.Polukhina I.Polyakov E.Polycarpo S.Ponce D.Popov S.Popov S.Poslavskii K.Prasanth L.Promberger C.Prouve V.Pugatch V.Puill G.Punzi H.R.Qi W.Qian N.Qin S.Qu R.Quagliani N.V.Raab R.I.Rabadan Trejo B.Rachwal J.H.Rademacker R.Rajagopalan M.Rama M.Ramos Pernas M.S.Rangel F.Ratnikov G.Raven M.Rebollo De Miguel F.Redi F.Reiss C.Remon Alepuz Z.Ren V.Renaudin P.K.Resmi R.Ribatti A.M.Ricci S.Ricciardi K.Rinnert P.Robbe G.Robertson A.B.Rodrigues E.Rodrigues J.A.Rodriguez Lopez E.Rodriguez Rodriguez A.Rollings P.Roloff V.Romanovskiy M.Romero Lamas A.Romero Vidal J.D.Roth M.Rotondo M.S.Rudolph T.Ruf R.A.Ruiz Fernandez J.Ruiz Vidal A.Ryzhikov J.Ryzka J.J.Saborido Silva N.Sagidova N.Sahoo B.Saitta M.Salomoni C.Sanchez Gras I.Sanderswood R.Santacesaria C.Santamarina Rios M.Santimaria E.Santovetti D.Saranin G.Sarpis M.Sarpis A.Sarti C.Satriano A.Satta M.Saur D.Savrina H.Sazak L.G.Scantlebury Smead A.Scarabotto S.Schael S.Scherl M.Schiller H.Schindler M.Schmelling B.Schmidt S.Schmitt O.Schneider A.Schopper M.Schubiger S.Schulte M.H.Schune R.Schwemmer B.Sciascia A.Sciuccati S.Sellam A.Semennikov M.Senghi Soares A.Sergi N.Serra L.Sestini A.Seuthe Y.Shang D.M.Shangase M.Shapkin I.Shchemerov L.Shchutska T.Shears L.Shekhtman Z.Shen S.Sheng V.Shevchenko E.B.Shields Y.Shimizu E.Shmanin J.D.Shupperd B.G.Siddi R.Silva Coutinho G.Simi S.Simone M.Singla N.Skidmore R.Skuza T.Skwarnicki M.W.Slater I.Slazyk J.C.Smallwood J.G.Smeaton E.Smith M.Smith A.Snoch L.Soares Lavra M.D.Sokoloff F.J.P.Soler A.Solomin A.Solovev I.Solovyev F.L.Souza De Almeida B.Souza De Paula B.Spaan E.Spadaro Norella E.Spiridenkov P.Spradlin V.Sriskaran F.Stagni M.Stahl S.Stahl S.Stanislaus O.Steinkamp O.Stenyakin H.Stevens S.Stone D.Strekalina F.Suljik J.Sun L.Sun Y.Sun P.Svihra P.N.Swallow K.Swientek A.Szabelski T.Szumlak M.Szymanski S.Taneja A.R.Tanner M.D.Tat A.Terentev F.Teubert E.Thomas D.J.D.Thompson K.A.Thomson H.Tilquin V.Tisserand S.T'Jampens M.Tobin L.Tomassetti G.Tonani X.Tong D.Torres Machado D.Y.Tou E.Trifonova S.M.Trilov C.Trippl G.Tuci A.Tully N.Tuning A.Ukleja D.J.Unverzagt E.Ursov A.Usachov A.Ustyuzhanin U.Uwer A.Vagner V.Vagnoni A.Valassi G.Valenti N.Valls Canudas M.van Beuzekom M.Van Dijk H.Van Hecke E.van Herwijnen M.van Veghel R.Vazquez Gomez P.Vazquez Regueiro C.Vázquez Sierra S.Vecchi J.J.Velthuis M.Veltri A.Venkateswaran M.Veronesi M.Vesterinen D.Vieira M.Vieites Diaz X.Vilasis-Cardona E.Vilella Figueras A.Villa P.Vincent F.C.Volle D.vom Bruch A.Vorobyev V.Vorobyev N.Voropaev K.Vos R.Waldi J.Walsh C.Wang J.Wang J.Wang J.Wang J.Wang M.Wang R.Wang Y.Wang Z.Wang Z.Wang Z.Wang J.A.Ward N.K.Watson D.Websdale C.Weisser B.D.C.Westhenry D.J.White M.Whitehead A.R.Wiederhold D.Wiedner G.Wilkinson M.K.Wilkinson I.Williams M.Williams M.R.J.Williams R.Williams F.F.Wilson W.Wislicki M.Witek L.Witola C.P.Wong G.Wormser S.A.Wotton H.Wu K.Wyllie Z.Xiang D.Xiao Y.Xie A.Xu J.Xu L.Xu M.Xu Q.Xu Z.Xu Z.Xu D.Yang S.Yang Y.Yang Z.Yang Z.Yang L.E.Yeomans H.Yin J.Yu X.Yuan E.Zaffaroni M.Zavertyaev M.Zdybal O.Zenaiev M.Zeng D.Zhang L.Zhang S.Zhang S.Zhang Y.Zhang Y.Zhang A.Zharkova A.Zhelezov Y.Zheng T.Zhou X.Zhou Y.Zhou V.Zhovkovska X.Zhu X.Zhu Z.Zhu V.Zhukov Q.Zou S.Zucchelli D.Zuliani G.Zunica LHCb Collaboration 无 《Chinese Physics C》 SCIE CAS CSCD 2023年第9期1-13,共13页
- A first search for theΞbc+J/ψΞc+decay is performed by the LHCb experiment with a data sample of proton-proton collisions,corresponding to an integrated luminosity of 9 fb−1 recorded at centre-of-mass en... A first search for theΞbc+J/ψΞc+decay is performed by the LHCb experiment with a data sample of proton-proton collisions,corresponding to an integrated luminosity of 9 fb−1 recorded at centre-of-mass energies of 7,8,and 13 TeV.Two peaking structures are seen with a local(global)significance of 4.3(2.8)and 4.1(2.4)standard deviations at masses of 6571 and 6694 MeV/c2,respectively.Upper limits are set on theΞ+bc baryon production cross-section times the branching fraction relative to that of the B+c→J/ψD+s decay at centre-of-mass energies of 8 and 13 TeV,in theΞ+bc and in the B+c rapidity and transverse-momentum ranges from 2.0 to 4.5 and 0 to 20GeV/c,respectively.Upper limits are presented as a function of theΞ+bc mass and lifetime. 展开更多
- 关键词 QCD B physics charm physics spectroscopy
- Search for the rare decays W+→Ds+γand Z→D0γat LHCb 认领 引用 被引量：1
- 2
- 作者 R.Aaij A.S.W.Abdelmotteleb +1069 位作者 C.Abellan Beteta F.Abudinén T.Ackernley B.Adeva M.Adinolfi P.Adlarson H.Afsharnia C.Agapopoulou C.A.Aidala Z.Ajaltouni S.Akar K.Akiba J.Albrecht F.Alessio M.Alexander A.Alfonso Albero Z.Aliouche P.Alvarez Cartelle R.Amalric S.Amato J.L.Amey Y.Amhis L.An L.Anderlini M.Andersson A.Andreianov M.Andreotti D.Andreou D.Ao F.Archilli A.Artamonov M.Artuso E.Aslanides M.Atzeni B.Audurier S.Bachmann M.Bachmayer J.J.Back A.Bailly-reyre P.Baladron Rodriguez V.Balagura W.Baldini J.Baptista de Souza Leite M.Barbetti R.J.Barlow S.Barsuk W.Barter M.Bartolini F.Baryshnikov 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.Benane G.Bencivenni E.Ben-Haim A.Berezhnoy R.Bernet S.Bernet Andres D.Berninghoff H.C.Bernstein C.Bertella A.Bertolin C.Betancourt F.Betti Ia.Bezshyiko S.Bhasin J.Bhom L.Bian M.S.Bieker N.V.Biesuz S.Bifani P.Billoir A.Biolchini M.Birch F.C.R.Bishop A.Bitadze A.Bizzeti M.P.Blago T.Blake F.Blanc J.E.Blank S.Blusk D.Bobulska J.A.Boelhauve O.Boente Garcia T.Boettcher A.Boldyrev C.S.Bolognani R.Bolzonella N.Bondar F.Borgato 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 Gonzalo 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.Calabrese L.Calefice S.Cali R.Calladine M.Calvi M.Calvo Gomez P.Campana D.H.Campora Perez A.F.Campoverde Quezada S.Capelli L.Capriotti A.Carbone G.Carboni R.Cardinale A.Cardini P.Carniti L.Carus A.Casais Vidal R.Caspary G.Casse M.Cattaneo G.Cavallero V.Cavallini S.Celani J.Cerasoli D.Cervenkov A.J.Chadwick M.G.Chapman M.Charles Ph.Charpentier C.A.Chavez Barajas M.Chefdeville C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Cholak M.Chrzaszcz A.Chubykin V.Chulikov P.Ciambrone M.F.Cicala X.Cid Vidal G.Ciezarek G.Ciullo P.E.L.Clarke M.Clemencic H.V.Cliff J.Closier J.L.Cobbledick V.Coco J.A.B.Coelho J.Cogan E.Cogneras L.Cojocariu P.Collins T.Colombo L.Congedo A.Contu N.Cooke I.Corredoira G.Corti B.Couturier D.C.Craik M.Cruz Torres R.Currie C.L.Da Silva S.Dadabaev L.Dai X.Dai E.Dall'Occo J.Dalseno C.D'Ambrosio J.Daniel A.Danilina P.d'Argent J.E.Davies A.Davis O.De Aguiar Francisco J.de Boer K.De Bruyn S.De Capua M.De Cian U.De Freitas Carneiro Da Graca E.De Lucia J.M.De Miranda L.De Paula M.De Serio D.De Simone P.De Simone F.De Vellis J.A.de Vries C.T.Dean F.Debernardis D.Decamp V.Dedu L.Del Buono B.Delaney H.-P.Dembinski V.Denysenko O.Deschamps F.Dettori B.Dey P.Di Nezza I.Diachkov S.Didenko L.Dieste Maronas S.Ding V.Dobishuk A.Dolmatov C.Dong A.M.Donohoe F.Dordei A.C.dos Reis L.Douglas A.G.Downes P.Duda M.W.Dudek L.Dufour V.Duk P.Durante M.M.Duras J.M.Durham D.Dutta A.Dziurda A.Dzyuba S.Easo U.Egede V.Egorychev S.Eidelman C.Eirea Orro S.Eisenhardt E.Ejopu S.Ek-In L.Eklund S.Ely A.Ene E.Epple S.Escher J.Eschle S.Esen T.Evans F.Fabiano L.N.Falcao Y.Fan B.Fang L.Fantini M.Faria S.Farry D.Fazzini L.F Felkowski M.Feo M.Fernandez Gomez A.D.Fernez F.Ferrari L.Ferreira Lopes F.Ferreira Rodrigues S.Ferreres Sole M.Ferrillo M.Ferro-Luzzi S.Filippov R.A.Fini M.Fiorini M.Firlej K.M.Fischer D.S.Fitzgerald C.Fitzpatrick T.Fiutowski F.Fleuret M.Fontana F.Fontanelli R.Forty D.Foulds-Holt V.Franco Lima M.Franco Sevilla M.Frank E.Franzoso G.Frau C.Frei D.A.Friday J.Fu Q.Fuehring T.Fulghesu E.Gabriel G.Galati M.D.Galati A.Gallas Torreira D.Galli S.Gambetta Y.Gan M.Gandelman P.Gandini Y.Gao Y.Gao M.Garau L.M.Garcia Martin P.Garcia Moreno J.García Pardiaas B.Garcia Plana F.A.Garcia Rosales L.Garrido C.Gaspar R.E.Geertsema D.Gerick L.L.Gerken E.Gersabeck M.Gersabeck T.Gershon L.Giambastiani V.Gibson H.K.Giemza A.L.Gilman M.Giovannetti A.Gioventù P.Gironella Gironell C.Giugliano M.A.Giza K.Gizdov E.L.Gkougkousis V.V.Gligorov C.Gabel E.Golobardes D.Golubkov A.Golutvin A.Gomes S.Gomez Fernandez F.Goncalves Abrantes 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S.A.Wotton H.Wu J.Wu K.Wyllie Z.Xiang D.Xiao Y.Xie A.Xu J.Xu L.Xu L.Xu M.Xu Q.Xu Z.Xu Z.Xu D.Yang S.Yang X.Yang Y.Yang Z.Yang Z.Yang L.E.Yeomans V.Yeroshenko H.Yeung H.Yin J.Yu X.Yuan E.Zaffaroni M.Zavertyaev M.Zdybal O.Zenaiev M.Zeng C.Zhang D.Zhang L.Zhang S.Zhang S.Zhang Y.Zhang Y.Zhang A.Zharkova A.Zhelezov Y.Zheng T.Zhou X.Zhou Y.Zhou V.Zhovkovska X.Zhu X.Zhu Z.Zhu V.Zhukov Q.Zou S.Zucchelli D.Zuliani G.Zunica LHCb Collaboration 《Chinese Physics C》 SCIE CAS CSCD 2023年第9期14-26,共13页
- A search for the rare decays W+→Ds+γand Z→D0γis performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13TeV,corresponding to an integrated luminosity ... A search for the rare decays W+→Ds+γand Z→D0γis performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13TeV,corresponding to an integrated luminosity of 2.0fb−1.No significant signal is observed for either decay mode and upper limits on their branching fractions are set using W+→Ds+γand Z→μ+μ−decays as normalization channels.The upper limits are 6.5×10−4and 2.1×10−3at 95%confidence level for the W+→Ds+γand Z→D0γdecay modes,respectively.This is the first reported search for the Z→D0γdecay,while the upper limit on the W+→D+sγbranching fraction improves upon the previous best limit. 展开更多
- 关键词 W/Z boson rare decay upper limit of branching fraction
- 题名Search for the doubly heavy baryonΞbc+→decaying to J/ψΞc+ 认领 引用 被引量：2
- 1
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M.Vesterinen D.Vieira M.Vieites Diaz X.Vilasis-Cardona E.Vilella Figueras A.Villa P.Vincent F.C.Volle D.vom Bruch A.Vorobyev V.Vorobyev N.Voropaev K.Vos R.Waldi J.Walsh C.Wang J.Wang J.Wang J.Wang J.Wang M.Wang R.Wang Y.Wang Z.Wang Z.Wang Z.Wang J.A.Ward N.K.Watson D.Websdale C.Weisser B.D.C.Westhenry D.J.White M.Whitehead A.R.Wiederhold D.Wiedner G.Wilkinson M.K.Wilkinson I.Williams M.Williams M.R.J.Williams R.Williams F.F.Wilson W.Wislicki M.Witek L.Witola C.P.Wong G.Wormser S.A.Wotton H.Wu K.Wyllie Z.Xiang D.Xiao Y.Xie A.Xu J.Xu L.Xu M.Xu Q.Xu Z.Xu Z.Xu D.Yang S.Yang Y.Yang Z.Yang Z.Yang L.E.Yeomans H.Yin J.Yu X.Yuan E.Zaffaroni M.Zavertyaev M.Zdybal O.Zenaiev M.Zeng D.Zhang L.Zhang S.Zhang S.Zhang Y.Zhang Y.Zhang A.Zharkova A.Zhelezov Y.Zheng T.Zhou X.Zhou Y.Zhou V.Zhovkovska X.Zhu X.Zhu Z.Zhu V.Zhukov Q.Zou S.Zucchelli D.Zuliani G.Zunica LHCb Collaboration 无
- 机构 Centro Brasileiro de Pesquisas Físicas（CBPF）,Rio de Janeiro Universidade Federal do Rio de Janeiro（UFRJ）,Rio de Janeiro Center for High Energy Physics,Tsinghua University Institute Of High Energy Physics（IHEP） School of Physics State Key Laboratory of Nuclear Physics and Technology,Peking University University of Chinese Academy of Sciences Institute of Particle Physics,Central China Normal University UniversitéSavoie Mont Blanc,IN2P3-LAPP UniversitéClermont Auvergne,CNRS/IN2P3,Clermont-Ferrand Aix Marseille Univ,CNRS/IN2P3,Marseille UniversitéParis-Saclay,CNRS/IN2P3 Laboratoire Leprince-Ringuet,CNRS/IN2P3,Ecole Polytechnique,Institut Polytechnique de Paris,Palaiseau LPNHE,Sorbonne Université,Paris Diderot Sorbonne Paris Cité,CNRS/IN2P3 I.Physikalisches Institut,RWTH Aachen University Fakultät Physik,Technische Universität Dortmund,Dortmund Max-Planck-Institut für Kernphysik（MPIK）,Heidelberg Physikalisches Institut,Ruprecht-Karls-Universität Heidelberg,Heidelberg School of Physics,University College Dublin INFN Sezione di Bari INFN Sezione di Bologna,Bologna INFN Sezione di Ferrara,Ferrara INFN Sezione di Firenze,Firenze INFN Laboratori Nazionali di Frascati,Frascati INFN Sezione di Genova INFN Sezione di Milano INFN Sezione di Milano-Bicocca INFN Sezione di Cagliari,Monserrato Universitàdegli Studi di Padova,Universitàe INFN INFN Sezione di Pisa INFN Sezione di Roma La Sapienza INFN Sezione di Roma Tor Vergata Nikhef National Institute for Subatomic Physics,Amsterdam Nikhef National Institute for Subatomic Physics and VU University Amsterdam,Amsterdam AGH-University of Science and Technology,Faculty of Physics and Applied Computer Science Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences National Center for Nuclear Research（NCBJ） Horia Hulubei National Institute of Physics and Nuclear Engineering,Bucharest-Magurele Affiliated with an institute covered by a cooperation agreement with CERN ICCUB,Universitat de Barcelona,Barcelona Instituto Galego de Física de Altas Enerxías（IGFAE）,Universidade de Santiago de Compostela,Santiago de Compostela Instituto de Fisica Corpuscular,Centro Mixto Universidad de Valencia-CSIC,Valencia European Organization for Nuclear Research（CERN） Institute of Physics,Ecole Polytechnique Fédérale de Lausanne（EPFL）,Lausanne Physik-Institut,Universität Zürich NSC Kharkiv Institute of Physics and Technology（NSC KIPT）,Kharkiv Institute for Nuclear Research of the National Academy of Sciences（KINR） University of Birmingham,Birmingham H.H.Wills Physics Laboratory,University of Bristol,Bristol Cavendish Laboratory,University of Cambridge,Cambridge Department of Physics,University of Warwick,Coventry STFC Rutherford Appleton Laboratory School of Physics and Astronomy,University of Edinburgh,Edinburgh School of Physics and Astronomy,University of Glasgow,Glasgow Oliver Lodge Laboratory Imperial College London Department of Physics and Astronomy,University of Manchester,Manchester Department of Physics,University of Oxford Massachusetts Institute of Technology,Cambridge University of Cincinnati,Cincinnati University of Maryland,College Park Los Alamos National Laboratory（LANL）,Los Alamos Syracuse University,Syracuse School of Physics and Astronomy,Monash University,Melbourne Pontifícia Universidade Católica do Rio de Janeiro（PUC-Rio）,Rio de Janeiro Physics and Micro Electronic College,Hunan University,Changsha City Guangdong Provincial Key Laboratory of Nuclear Science,Guangdong-Hong Kong Joint Laboratory of Quantum Matter,Institute of Quantum Matter,South China Normal University School of Physics and Technology,Wuhan University Departament to de Fisica,Universidad Nacional de Colombia Universität Bonn-Helmholtz-Institut für Strahlen und Kernphysik Eotvos Lorand University,Budapest INFN Sezione di Perugia,Perugia Van Swinderen Institute,University of Groningen,Groningen Universiteit Maastricht,Maastricht DS4DS,La Salle,Universitat Ramon Llull,Barcelona Department of Physics and Astronomy,Uppsala University,Uppsala University of Michigan,Ann Arbor Universidade Federal do Triangulo Mineiro（UFTM）,Uberaba-MG Central South U. Hangzhou Institute for Advanced Study Excellence Cluster ORIGINS Universidad Nacional Autónoma de Honduras,Tegucigalpa Universitàdi Bari Universitàdi Bologna,Bologna Universitàdi Cagliari,Cagliari Universitàdi Ferrara,Ferrara Universitàdi Firenze,Firenze Universitàdi Genova Universitàdegli Studi di Milano Universitàdi Milano Bicocca Universitàdi Modena e Reggio Emilia Universitàdi Padova Universitàdi Perugia,Perugia Scuola Normale Superiore Universitàdi Pisa Universitàdella Basilicata,Potenza Universitàdi Roma Tor Vergata Universitàdi Siena Universitàdi Urbino
- 出处 《Chinese Physics C》 SCIE CAS CSCD 2023年第9期1-13,共13页
- 基金 The project support from CERN and from the national agencies:CAPES,CNPq,FAPERJ and FINEP(Brazil) MOST and NSFC(China) +18 种基金 CNRS/IN2P3(France) BMBF,DFG and MPG(Germany) INFN(Italy) NWO(Netherlands) MNiSW and NCN(Poland) MEN/IFA(Romania) MICINN(Spain) SNSF and SER(Switzerland) NASU(Ukraine) STFC(United Kingdom) DOE NP and NSF(USA).We acknowledge the computing resources that are provided by CERN,IN2P3(France),KIT and DESY(Germany),INFN(Italy),SURF(Netherlands),PIC(Spain),GridPP(United Kingdom),CSCS(Switzerland),IFIN-HH(Romania),CBPF(Brazil),Polish WLCG(Poland)and NERSC(USA).Individual groups or members have received support from ARC and ARDC(Australia) Minciencias(Colombia) AvH Foundation(Germany) EPLANET,Marie Sklodowska-Curie Actions and ERC(European Union) A*MIDEX,ANR,IPhU and Labex P2IO,and Région Auvergne-RhôneAlpes(France) Key Research Program of Frontier Sciences of CAS,CAS PIFI,CAS CCEPP,Fundamental Research Funds for the Central Universities,and Sci.&Tech.Program of Guangzhou(China) GVA,XuntaGal,GENCAT and Prog.Atracción Talento,CM(Spain) SRC(Sweden) the Leverhulme Trust,the Royal Society and UKRI(United Kingdom).
- 摘要 A first search for theΞbc+J/ψΞc+decay is performed by the LHCb experiment with a data sample of proton-proton collisions,corresponding to an integrated luminosity of 9 fb−1 recorded at centre-of-mass energies of 7,8,and 13 TeV.Two peaking structures are seen with a local(global)significance of 4.3(2.8)and 4.1(2.4)standard deviations at masses of 6571 and 6694 MeV/c2,respectively.Upper limits are set on theΞ+bc baryon production cross-section times the branching fraction relative to that of the B+c→J/ψD+s decay at centre-of-mass energies of 8 and 13 TeV,in theΞ+bc and in the B+c rapidity and transverse-momentum ranges from 2.0 to 4.5 and 0 to 20GeV/c,respectively.Upper limits are presented as a function of theΞ+bc mass and lifetime.
- 关键词 QCD B physics charm physics spectroscopy
- 分类号 O572.34 [理学—粒子物理与原子核物理]
- 题名Search for the rare decays W+→Ds+γand Z→D0γat LHCb 认领 引用 被引量：1
- 2
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- 机构 Centro Brasileiro de Pesquisas Físicas（CBPF）,Rio de Janeiro Universidade Federal do Rio de Janeiro（UFRJ）,Rio de Janeiro Center for High Energy Physics,Tsinghua University Institute Of High Energy Physics（IHEP） School of Physics State Key Laboratory of Nuclear Physics and Technology,Peking University University of Chinese Academy of Sciences Institute of Particle Physics,Central China Normal University UniversitéSavoie Mont Blanc,IN2P3-LAPP UniversitéClermont Auvergne,CNRS/IN2P3,Clermont-Ferrand Aix Marseille Univ,CNRS/IN2P3,Marseille UniversitéParis-Saclay,CNRS/IN2P3 Laboratoire Leprince-Ringuet,CNRS/IN2P3,Ecole Polytechnique,Institut Polytechnique de Paris,Palaiseau LPNHE,Sorbonne Université,Paris Diderot Sorbonne Paris Cité,CNRS/IN2P3 I.Physikalisches Institut,RWTH Aachen University Fakultat Physik,Technische Universitat Dortmund,Dortmund Max-Planck-Institut für Kernphysik（MPIK）,Heidelberg Physikalisches Institut,Ruprecht-Karls-Universitat Heidelberg,Heidelberg School of Physics,University College Dublin INFN Sezione di Bari INFN Sezione di Bologna,Bologna INFN Sezione di Ferrara,Ferrara INFN Sezione di Firenze,Firenze INFN Laboratori Nazionali di Frascati,Frascati INFN Sezione di Genova INFN Sezione di Milano INFN Sezione di Milano-Bicocca INFN Sezione di Cagliari,Monserrato Universitàdegli Studi di Padova,Universitàe INFN INFN Sezione di Pisa INFN Sezione di Roma La Sapienza INFN Sezione di Roma Tor Vergata Nikhef National Institute for Subatomic Physics,Amsterdam Nikhef National Institute for Subatomic Physics and VU University Amsterdam,Amsterdam AGH-University of Science and Technology,Faculty of Physics and Applied Computer Science Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences National Center for Nuclear Research（NCBJ） Horia Hulubei National Institute of Physics and Nuclear Engineering,Bucharest-Magurele Affiliated with an institute covered by a cooperation agreement with CERN ICCUB,Universitat de Barcelona,Barcelona Instituto Galego de Física de Altas Enerxías（IGFAE）,Universidade de Santiago de Compostela,Santiago de Compostela Instituto de Fisica Corpuscular,Centro Mixto Universidad de Valencia-CSIC,Valencia European Organization for Nuclear Research（CERN） Institute of Physics,Ecole Polytechnique Fédérale de Lausanne（EPFL）,Lausanne Physik-Institut,Universitat Zürich NSC Kharkiv Institute of Physics and Technology（NSC KIPT）,Kharkiv Institute for Nuclear Research of the National Academy of Sciences（KINR） University of Birmingham,Birmingham H.H.Wills Physics Laboratory,University of Bristol,Bristol Cavendish Laboratory,University of Cambridge,Cambridge Department of Physics,University of Warwick,Coventry STFC Rutherford Appleton Laboratory School of Physics and Astronomy,University of Edinburgh,Edinburgh School of Physics and Astronomy,University of Glasgow,Glasgow Oliver Lodge Laboratory Imperial College London Department of Physics and Astronomy,University of Manchester,Manchester Department of Physics,University of Oxford Massachusetts Institute of Technology,Cambridge University of Cincinnati,Cincinnati University of Maryland,College Park Los Alamos National Laboratory（LANL）,Los Alamos Syracuse University,Syracuse School of Physics and Astronomy,Monash University,Melbourne Pontifícia Universidade Católica do Rio de Janeiro（PUC-Rio）,Rio de Janeiro Physics and Micro Electronic College,Hunan University,Changsha City Guangdong Provincial Key Laboratory of Nuclear Science,Guangdong-Hong Kong Joint Laboratory of Quantum Matter,Institute of Quantum Matter,South China Normal University Lanzhou University,Lanzhou School of Physics and Technology,Wuhan University Departament to de Fisica,Universidad Nacional de Colombia Universitat Bonn-Helmholtz-Institut für Strahlen und Kernphysik Eotvos Lorand University,Budapest INFN Sezione di Perugia,Perugia Van Swinderen Institute,University of Groningen,Groningen Universiteit Maastricht,Maastricht Tadeusz Kosciuszko Cracow University of Technology DS4DS,La Salle,Universitat Ramon Llull,Barcelona Department of Physics and Astronomy,Uppsala University,Uppsala University of Michigan,Ann Arbor Universidade de Brasília,Brasília Central South U. Hangzhou Institute for Advanced Study Excellence Cluster ORIGINS Universidad Nacional Autónoma de Honduras,Tegucigalpa Universitàdi Bari Universitàdi Bologna,Bologna Universitàdi Cagliari,Cagliari Universitàdi Ferrara,Ferrara Universitàdi Firenze,Firenze Universitàdi Genova Universitàdegli Studi di Milano Universitàdi Milano Bicocca Universitàdi Padova Universitàdi Perugia,Perugia Scuola Normale Superiore Universitàdi Pisa Universitàdella Basilicata,Potenza Universitàdi Roma Tor Vergata Universitàdi Siena Universitàdi Urbino Universidad de Alcalá,Alcaláde Henares
- 出处 《Chinese Physics C》 SCIE CAS CSCD 2023年第9期14-26,共13页
- 摘要 A search for the rare decays W+→Ds+γand Z→D0γis performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13TeV,corresponding to an integrated luminosity of 2.0fb−1.No significant signal is observed for either decay mode and upper limits on their branching fractions are set using W+→Ds+γand Z→μ+μ−decays as normalization channels.The upper limits are 6.5×10−4and 2.1×10−3at 95%confidence level for the W+→Ds+γand Z→D0γdecay modes,respectively.This is the first reported search for the Z→D0γdecay,while the upper limit on the W+→D+sγbranching fraction improves upon the previous best limit.
- 关键词 W/Z boson rare decay upper limit of branching fraction
- 分类号 O572.21 [理学—粒子物理与原子核物理]
