对衰变到J/ψK⁺和J/ψϕ的新共振态的观测
Observation of New Resonances Decaying to J/ψK^{+} and J/ψϕ.
作者信息
Aaij R, Abellán Beteta C, Ackernley T, Adeva B, Adinolfi M, Afsharnia H, Aidala C A, Aiola S, Ajaltouni Z, Akar S, Albrecht J, Alessio F, Alexander M, Alfonso Albero A, Aliouche Z, Alkhazov G, Alvarez Cartelle P, Amato S, Amhis Y, An L, Anderlini L, Andreianov A, Andreotti M, Archilli F, Artamonov A, Artuso M, Arzymatov K, Aslanides E, Atzeni M, Audurier B, Bachmann S, Bachmayer M, Back J J, Baker S, Baladron Rodriguez P, Balagura V, Baldini W, Baptista Leite J, Barlow R J, Barsuk S, Barter W, Bartolini M, Baryshnikov F, Basels J M, Bassi G, Batsukh B, Battig A, Bay A, Becker M, Bedeschi F, Bediaga I, Beiter A, Belavin V, Belin S, Bellee V, Belous K, Belov I, Belyaev I, Bencivenni G, Ben-Haim E, Berezhnoy A, Bernet R, Berninghoff D, Bernstein H C, Bertella C, Bertolin A, Betancourt C, Betti F, Bezshyiko Ia, Bhasin S, Bhom J, Bian L, Bieker M S, Bifani S, Billoir P, Birch M, Bishop F C R, Bitadze A, Bizzeti A, Bjørn M, Blago M P, Blake T, Blanc F, Blusk S, Bobulska D, Boelhauve J A, Boente Garcia O, Boettcher T, Boldyrev A, Bondar A, Bondar N, Borghi S, Borisyak M, Borsato M, Borsuk J T, Bouchiba S A, Bowcock T J V, Boyer A, Bozzi C, Bradley M J, Braun S, Brea Rodriguez A, Brodski M, Brodzicka J, Brossa Gonzalo A, Brundu D, Buonaura A, Burr C, Bursche A, Butkevich A, Butter J S, Buytaert J, Byczynski W, Cadeddu S, Cai H, Calabrese R, Calefice L, Calero Diaz L, Cali S, Calladine R, Calvi M, Calvo Gomez M, Camargo Magalhaes P, Camboni A, Campana P, Campoverde Quezada A F, Capelli S, Capriotti L, Carbone A, Carboni G, Cardinale R, Cardini A, Carli I, Carniti P, Carus L, Carvalho Akiba K, Casais Vidal A, Casse G, Cattaneo M, Cavallero G, Celani S, Cerasoli J, Chadwick A J, Chapman M G, Charles M, Charpentier Ph, Chatzikonstantinidis G, Chavez Barajas C A, Chefdeville M, Chen C, Chen S, Chernov A, Chobanova V, Cholak S, Chrzaszcz M, Chubykin A, Chulikov V, Ciambrone P, Cicala M F, Cid Vidal X, Ciezarek G, Clarke P E L, Clemencic M, Cliff H V, Closier J, Cobbledick J L, Coco V, Coelho J A B, Cogan J, Cogneras E, Cojocariu L, Collins P, Colombo T, Congedo L, Contu A, Cooke N, Coombs G, Corti G, Costa Sobral C M, Couturier B, Craik D C, Crkovská J, Cruz Torres M, Currie R, Da Silva C L, Dall'Occo E, Dalseno J, D'Ambrosio C, Danilina A, d'Argent P, Davis A, De Aguiar Francisco O, De Bruyn K, De Capua S, De Cian M, De Miranda J M, De Paula L, De Serio M, De Simone D, De Simone P, de Vries J A, Dean C T, Decamp D, Del Buono L, Delaney B, Dembinski H-P, Dendek A, Denysenko V, Derkach D, Deschamps O, Desse F, Dettori F, Dey B, Di Nezza P, Didenko S, Dieste Maronas L, Dijkstra H, Dobishuk V, Donohoe A M, Dordei F, Dos Reis A C, Douglas L, Dovbnya A, Downes A G, Dreimanis K, Dudek M W, Dufour L, Duk V, Durante P, Durham J M, Dutta D, Dziewiecki M, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, Eisenhardt S, Ek-In S, Eklund L, Ely S, Ene A, Epple E, Escher S, Eschle J, Esen S, Evans T, Falabella A, Fan J, Fan Y, Fang B, Farry S, Fazzini D, Fedin P, Féo M, Fernandez Declara P, Fernandez Prieto A, Fernandez-Tenllado Arribas J M, Ferrari F, Ferreira Lopes L, Ferreira Rodrigues F, Ferreres Sole S, Ferrillo M, Ferro-Luzzi M, Filippov S, Fini R A, Fiorini M, Firlej M, Fischer K M, Fitzpatrick C, Fiutowski T, Fleuret F, Fontana M, Fontanelli F, Forty R, Franco Lima V, Franco Sevilla M, Frank M, Franzoso E, Frau G, Frei C, Friday D A, Fu J, Fuehring Q, Funk W, Gabriel E, Gaintseva T, Gallas Torreira A, Galli D, Gambetta S, Gan Y, Gandelman M, Gandini P, Gao Y, Garau M, Garcia Martin L M, Garcia Moreno P, García Pardiñas J, Garcia Plana B, Garcia Rosales F A, Garrido L, Gaspar C, Geertsema R E, Gerick D, Gerken L L, Gersabeck E, Gersabeck M, Gershon T, Gerstel D, Ghez Ph, Gibson V, Giemza H K, Giovannetti M, Gioventù A, Gironella Gironell P, Giubega L, Giugliano C, Gizdov K, Gkougkousis E L, Gligorov V V, Göbel C, Golobardes E, Golubkov D, Golutvin A, Gomes A, Gomez Fernandez S, Goncalves Abrantes F, Goncerz M, Gong G, Gorbounov P, Gorelov I V, Gotti C, Govorkova E, Grabowski J P, Graciani Diaz R, Grammatico T, Granado Cardoso L A, Graugés E, Graverini E, Graziani G, Grecu A, Greeven L M, Griffith P, Grillo L, Gromov S, Gruberg Cazon B R, Gu C, Guarise M, Günther P A, Gushchin E, Guth A, Guz Y, Gys T, Hadavizadeh T, Haefeli G, Haen C, Haimberger J, Halewood-Leagas T, Hamilton P M, Han Q, Han X, Hancock T H, Hansmann-Menzemer S, Harnew N, Harrison T, Hasse C, Hatch M, He J, Hecker M, Heijhoff K, Heinicke K, Hennequin A M, Hennessy K, Henry L, Heuel J, Hicheur A, Hill D, Hilton M, Hollitt S E, Hu J, Hu J, Hu W, Huang W, Huang X, Hulsbergen W, Hunter R J, Hushchyn M, Hutchcroft D, Hynds D, Ibis P, Idzik M, Ilin D, Ilten P, Inglessi A, Ishteev A, Ivshin K, Jacobsson R, Jakobsen S, Jans E, Jashal B K, Jawahery A, Jevtic V, Jezabek M, Jiang F, John M, Johnson D, Jones C R, Jones T P, Jost B, Jurik N, Kandybei S, Kang Y, Karacson M, Karpov M, Kazeev N, Keizer F, Kenzie M, Ketel T, Khanji B, Kharisova A, Kholodenko S, Kim K E, Kirn T, Kirsebom V S, Kitouni O, Klaver S, Klimaszewski K, Koliiev S, Kondybayeva A, Konoplyannikov A, Kopciewicz P, Kopecna R, Koppenburg P, Korolev M, Kostiuk I, Kot O, Kotriakhova S, Kravchenko P, Kravchuk L, Krawczyk R D, Kreps M, Kress F, Kretzschmar S, Krokovny P, Krupa W, Krzemien W, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kuindersma H S, Kunde G J, Kvaratskheliya T, Lacarrere D, Lafferty G, Lai A, Lampis A, Lancierini D, Lane J J, Lane R, Lanfranchi G, Langenbruch C, Langer J, Lantwin O, Latham T, Lazzari F, Le Gac R, Lee S H, Lefèvre R, Leflat A, Legotin S, Leroy O, Lesiak T, Leverington B, Li H, Li L, Li P, Li Y, Li Y, Li Z, Liang X, Lin T, Lindner R, Lisovskyi V, Litvinov R, Liu G, Liu H, Liu S, Liu X, Loi A, Lomba Castro J, Longstaff I, Lopes J H, Lovell G H, Lu Y, Lucchesi D, Luchuk S, Lucio Martinez M, Lukashenko V, Luo Y, Lupato A, Luppi E, Lupton O, Lusiani A, Lyu X, Ma L, Maccolini S, Machefert F, Maciuc F, Macko V, Mackowiak P, Maddrell-Mander S, Madejczyk O, Madhan Mohan L R, Maev O, Maevskiy A, Maisuzenko D, Majewski M W, Malczewski J J, Malde S, Malecki B, Malinin A, Maltsev T, Malygina H, Manca G, Mancinelli G, Manera Escalero R, Manuzzi D, Marangotto D, Maratas J, Marchand J F, Marconi U, Mariani S, Marin Benito C, Marinangeli M, Marino P, Marks J, Marshall P J, Martellotti G, Martinazzoli L, Martinelli M, Martinez Santos D, Martinez Vidal F, Massafferri A, Materok M, Matev R, Mathad A, Mathe Z, Matiunin V, Matteuzzi C, Mattioli K R, Mauri A, Maurice E, Mauricio J, Mazurek M, McCann M, Mcconnell L, Mcgrath T H, McNab A, McNulty R, Mead J V, Meadows B, Meaux C, Meier G, Meinert N, Melnychuk D, Meloni S, Merk M, Merli A, Meyer Garcia L, Mikhasenko M, Milanes D A, Millard E, Milovanovic M, Minard M-N, Minzoni L, Mitchell S E, Mitreska B, Mitzel D S, Mödden A, Mohammed R A, Moise R D, Mombächer T, Monroy I A, Monteil S, Morandin M, Morello G, Morello M J, Moron J, Morris A B, Morris A G, Mountain R, Mu H, Muheim F, Mukherjee M, Mulder M, Müller D, Müller K, Murphy C H, Murray D, Muzzetto P, Naik P, Nakada T, Nandakumar R, Nanut T, Nasteva I, Needham M, Neri I, Neri N, Neubert S, Neufeld N, Newcombe R, Nguyen T D, Nguyen-Mau C, Niel E M, Nieswand S, Nikitin N, Nolte N S, Nunez C, Oblakowska-Mucha A, Obraztsov V, O'Hanlon D P, Oldeman R, Olivares M E, Onderwater C J G, Ossowska A, Otalora Goicochea J M, Ovsiannikova T, Owen P, Oyanguren A, Pagare B, Pais P R, Pajero T, Palano A, Palutan M, Pan Y, Panshin G, Papanestis A, Pappagallo M, Pappalardo L L, Pappenheimer C, Parker W, Parkes C, Parkinson C J, Passalacqua B, Passaleva G, Pastore A, Patel M, Patrignani C, Pawley C J, Pearce A, Pellegrino A, Pepe Altarelli M, Perazzini S, Pereima D, Perret P, Petridis K, Petrolini A, Petrov A, Petrucci S, Petruzzo M, Pham T T H, Philippov A, Pica L, Piccini M, Pietrzyk B, Pietrzyk G, Pili M, Pinci D, Pisani F, Piucci A, P K Resmi, Placinta V, Plews J, Plo Casasus M, Polci F, Poli Lener M, Poliakova M, Poluektov A, Polukhina N, Polyakov I, Polycarpo E, Pomery G J, Ponce S, Popov D, Popov S, Poslavskii S, Prasanth K, Promberger L, Prouve C, Pugatch V, Pullen H, Punzi G, Qian W, Qin J, Quagliani R, Quintana B, Raab N V, Rabadan Trejo R I, Rachwal B, Rademacker J H, Rama M, Ramos Pernas M, Rangel M S, Ratnikov F, Raven G, Reboud M, Redi F, Reiss F, Remon Alepuz C, Ren Z, Renaudin V, Ribatti R, Ricciardi S, Rinnert K, Robbe P, Robert A, Robertson G, Rodrigues A B, Rodrigues E, Rodriguez Lopez J A, Rollings A, Roloff P, Romanovskiy V, Romero Lamas M, Romero Vidal A, Roth J D, Rotondo M, Rudolph M S, Ruf T, Ruiz Vidal J, Ryzhikov A, Ryzka J, Saborido Silva J J, Sagidova N, Sahoo N, Saitta B, Sanchez Gonzalo D, Sanchez Gras C, Santacesaria R, Santamarina Rios C, Santimaria M, Santovetti E, Saranin D, Sarpis G, Sarpis M, Sarti A, Satriano C, Satta A, Saur M, Savrina D, Sazak H, Scantlebury Smead L G, Schael S, Schellenberg M, Schiller M, Schindler H, Schmelling M, Schmidt B, Schneider O, Schopper A, Schubiger M, Schulte S, Schune M H, Schwemmer R, Sciascia B, Sciubba A, Sellam S, Semennikov A, Senghi Soares M, Sergi A, Serra N, Sestini L, Seuthe A, Seyfert P, Shangase D M, Shapkin M, Shchemerov I, Shchutska L, Shears T, Shekhtman L, Shen Z, Shevchenko V, Shields E B, Shmanin E, Shupperd J D, Siddi B G, Silva Coutinho R, Simi G, Simone S, Skidmore N, Skwarnicki T, Slater M W, Slazyk I, Smallwood J C, Smeaton J G, Smetkina A, Smith E, Smith M, Snoch A, Soares M, Soares Lavra L, Sokoloff M D, Soler F J P, Solovev A, Solovyev I, Souza De Almeida F L, Souza De Paula B, Spaan B, Spadaro Norella E, Spradlin P, Stagni F, Stahl M, Stahl S, Stefko P, Steinkamp O, Stemmle S, Stenyakin O, Stevens H, Stone S, Stramaglia M E, Straticiuc M, Strekalina D, Suljik F, Sun J, Sun L, Sun Y, Svihra P, Swallow P N, Swientek K, Szabelski A, Szumlak T, Szymanski M, Taneja S, Teubert F, Thomas E, Thomson K A, Tilley M J, Tisserand V, T'Jampens S, Tobin M, Tolk S, Tomassetti L, Torres Machado D, Tou D Y, Traill M, Tran M T, Trifonova E, Trippl C, Tuci G, Tully A, Tuning N, Ukleja A, Unverzagt D J, Ursov E, Usachov A, Ustyuzhanin A, Uwer U, Vagner A, Vagnoni V, Valassi A, Valenti G, Valls Canudas N, van Beuzekom M, Van Dijk M, van Herwijnen E, Van Hulse C B, van Veghel M, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis J J, Veltri M, Venkateswaran A, Veronesi M, Vesterinen M, Vieira D, Vieites Diaz M, Viemann H, Vilasis-Cardona X, Vilella Figueras E, Vincent P, Vitali G, Vollhardt A, Vom Bruch D, Vorobyev A, Vorobyev V, Voropaev N, Waldi R, Walsh J, Wang C, Wang J, Wang J, Wang J, Wang J, Wang M, Wang R, Wang Y, Wang Z, Wark H M, Watson N K, Weber S G, Websdale D, Weisser C, Westhenry B D C, White D J, Whitehead M, Wiedner D, Wilkinson G, Wilkinson M, Williams I, Williams M, Williams M R J, Wilson F F, Wislicki W, Witek M, Witola L, Wormser G, Wotton S A, Wu H, Wyllie K, Xiang Z, Xiao D, Xie Y, Xu A, Xu J, Xu L, Xu M, Xu Q, Xu Z, Xu Z, Yang D, Yang Y, Yang Z, Yang Z, Yao Y, Yeomans L E, Yin H, Yu J, Yuan X, Yushchenko O, Zaffaroni E, Zarebski K A, Zavertyaev M, Zdybal M, Zenaiev O, Zeng M, Zhang D, Zhang L, Zhang S, Zhang Y, Zhang Y, Zhelezov A, Zheng Y, Zhou X, Zhou Y, Zhu X, Zhukov V, Zonneveld J B, Zucchelli S, Zuliani D, Zunica G
机构信息
Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands.
Physik-Institut, Universität Zürich, Zürich, Switzerland.
出版信息
Phys Rev Lett. 2021 Aug 20;127(8):082001. doi: 10.1103/PhysRevLett.127.082001.
The first observation of exotic states with a new quark content cc[over ¯]us[over ¯] decaying to the J/ψK^{+} final state is reported with high significance from an amplitude analysis of the B^{+}→J/ψϕK^{+} decay. The analysis is carried out using proton-proton collision data corresponding to a total integrated luminosity of 9 fb^{-1} collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV. The most significant state, Z_{cs}(4000)^{+}, has a mass of 4003±6_{-14}^{+4} MeV, a width of 131±15±26 MeV, and spin parity J^{P}=1^{+}, where the quoted uncertainties are statistical and systematic, respectively. A new 1^{+} X(4685) state decaying to the J/ψϕ final state is also observed with high significance. In addition, the four previously reported J/ψϕ states are confirmed and two more exotic states, Z_{cs}(4220)^{+} and X(4630), are observed with significance exceeding 5 standard deviations.
通过对(B^{+}→J/ψϕK^{+})衰变的幅度分析，首次以高显著性报道了具有新夸克成分(cc\overline{u}\overline{s})的奇异态衰变为(J/ψK^{+})末态的情况。该分析使用了大型强子对撞机底夸克实验（LHCb）在质心能量为7、8和13 TeV时收集的对应于9 fb⁻¹总积分亮度的质子 - 质子碰撞数据。最显著的态(Z_{cs}(4000)^{+})，质量为(4003±6_{-14}^{+4}) MeV，宽度为(131±15±26) MeV，自旋宇称(J^{P}=1^{+})，其中给出的不确定性分别为统计不确定性和系统不确定性。还以高显著性观测到一个衰变为(J/ψϕ)末态的新的(1^{+}) (X(4685))态。此外，确认了之前报道的四个(J/ψϕ)态，并观测到另外两个奇异态(Z_{cs}(4220)^{+})和(X(4630))，显著性超过5个标准差。
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