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Observation of the Decay Ξb- →pK-K-

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成果类型:
期刊论文
作者:
Aaij, R.*;Adeva, B.;Adinolfi, M.;Ajaltouni, Z.;Akar, S.;...
通讯作者:
Aaij, R.
作者机构:
[Fohl, K.; Di Canto, A.; Popov, D.; Durante, P.; Matev, R.; Ferro-Luzzi, M.; Cardoso, L. A. Granado; Bozzi, C.; Joram, C.; Fontana, M.; Kvaratskheliya, T.; Altarelli, M. Pepe; Barschel, C.; Karacson, M.; Charpentier, Ph.; Ruf, T.; Hatch, M.; Poikela, T.; Ferrari, F.; Whitehead, M.; Forty, R.; Corti, G.; McCann, M.; Schmidt, B.; Gaspar, C.; Perez, D. H. Campora; Voneki, B.; Otto, A.; Stahl, S.; Bettler, M. -O.; Linn, C.; Roiser, S.; Barter, W.; Schopper, A.; Wyllie, K.; Dordei, F.; Contu, A.; Lacarrere, D.; Couturier, B.; Leflat, A.; Cattaneo, M.; Jost, B.; Farber, C.; Dungs, K.; Dettori, F.; Tonelli, D.; Rihl, M.; Siddi, B. G.; Prisciandaro, J.; Lindner, R.; Dijkstra, H.; Schindler, H.; Haen, C.; Barbosa, J. V. Viana; Thomas, E.; Funk, W.; Dziurda, A.; Golutvin, A.; Johnson, D.; Lemaitre, F.; Collins, P.; Artamonov, A.; Jacobsson, R.; Neufeld, N.; Schwemmer, R.; Buytaert, J.; Frei, C.; Aaij, R.; Vagnoni, V.; Mathe, Z.; D'Ambrosio, C.; Grillo, L.; Stagni, F.; Pearce, A.; Teubert, F.; Bondar, N.; Lupton, O.; Perazzini, S.; Gys, T.; Cogoni, V.; Wilkinson, G.; Closier, J.; Robbe, P.; Frank, M.; van Herwijnen, E.; Clemencic, M.; Williams, M.; Coombs, G.; Valat, S.; Valassi, A.; Alessio, F.; Sridharan, S.; Trisovic, A.] European Org Nucl Res CERN, Geneva, Switzerland.
[Gomes, A.; Collazuol, G.; Molina Rodriguez, J.; Bediaga, I.; Massafferri, A.; Rodrigues, A. B.; dos Reis, A. C.; De Miranda, J. M.; Lucchesi, D.; Soares Lavra, L.; Salustino Guimaraes, V.] CBPF, Rio De Janeiro, Brazil.
[Hicheur, A.; Otalora Goicochea, J. M.; Lopes, J. H.; Martins Tostes, D.; Polycarpo, E.; Potterat, C.; Souza De Paula, B.; Bursche, A.; Cruz Torres, M.; Akiba, K. Carvalho; Baesso, C.; Silva de Oliveira, L.; De Paula, L.; Nasteva, I.; Gandelman, M.; Da Cunha Marinho, F.; Gobel, C.; Amato, S.; Rangel, M. S.; Ferreira Rodrigues, F.] Univ Fed Rio de Janeiro, Rio de Janeiro, Brazil.
[Gao, Y.; Yang, Z.; Jiang, F.; Yu, J.; He, J.; Yin, H.; Zhang, Y.; Zheng, Y.; Zhu, X.; Li, T.; Sun, L.; An, L.; Lyu, X.; Xie, Y.; Davis, A.; Zhang, L.; Liu, X.; Vieira, D.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.
[Chefdeville, M.; Marchand, J. F.; Tisserand, V.; Decamp, D.; Ghez, Ph.; Beaucourt, L.; Tournefier, E.; Pietrzyk, B.; T'Jampens, S.; Minard, M. -N.; Deleage, N.] Univ Savoie Mt Blanc, CNRS IN2P3, LAPP, Annecy Le Vieux, France.
通讯机构:
[Aaij, R.] E
European Org Nucl Res CERN, Geneva, Switzerland.
语种:
英文
期刊:
PHYSICAL REVIEW LETTERS
ISSN:
0031-9007
年:
2017
卷:
118
期:
7
页码:
071801
基金类别:
CERN; CAPES (Brazil)CAPES; CNPq (Brazil)National Council for Scientific and Technological Development (CNPq); FAPERJ (Brazil)Carlos Chagas Filho Foundation for Research Support of the State of Rio de Janeiro (FAPERJ); FINEP (Brazil)Ciencia Tecnologia e Inovacao (FINEP); NSFC (China)National Natural Science Foundation of China (NSFC); CNRS/IN2P3 (France)Centre National de la Recherche Scientifique (CNRS); BMBF (Germany)Federal Ministry of Education & Research (BMBF); DFG (Germany)German Research Foundation (DFG); MPG (Germany)Max Planck Society; INFN (Italy)Istituto Nazionale di Fisica Nucleare (INFN); FOM (The Netherlands)FOM (The Netherlands)Netherlands Government; NWO (The Netherlands)Netherlands Organization for Scientific Research (NWO)Netherlands Government; MNiSW (Poland)Ministry of Science and Higher Education, Poland; NCN (Poland); MEN/IFA (Romania); MinES (Russia); FASO (Russia); MinECo (Spain); SNSF (Switzerland)Swiss National Science Foundation (SNSF); SER (Switzerland); NASU (Ukraine); STFC (United Kingdom)UK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC); NSF (USA)National Science Foundation (NSF); AvH Foundation (Germany)Alexander von Humboldt Foundation; EPLANET (European Union); Marie Sklodowska-Curie Actions (European Union); ERC (European Union)European Research Council (ERC); Conseil General de Haute-Savoie (France)Region Auvergne-Rhone-Alpes; Labex ENIGMASS (France); OCEVU, Region Auvergne (France)Region Auvergne-Rhone-Alpes; RFBR (Russia)Russian Foundation for Basic Research (RFBR); Yandex LLC (Russia); GVA (Spain); XuntaGal (Spain); GENCAT (Spain); Herchel Smith Fund (United Kingdom); Royal Society (United Kingdom)Royal Society of London; Royal Commission for the Exhibition of 1851 (United Kingdom); Leverhulme Trust (United Kingdom)Leverhulme Trust; Science and Technology Facilities CouncilUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC) [1708182, ST/K003410/1, 1564711, ST/L001152/1, LHCb, ST/H006737/1, 1514623, LHCb Upgrades, ST/J004332/1, ST/N000331/1, GRIDPP, 1565116, ST/M003140/1, ST/N000250/1, 1681016, 1565032, 1641747, 1707993, 1416165] Funding Source: researchfish
机构署名:
本校为其他机构
院系归属:
物理科学与技术学院
摘要:
Decays of the Ξb- and Ωb- baryons to the charmless final states ph-h′-, where h(′) denotes a kaon or pion, are searched for with the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies s=7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1. The decay Ξb-→pK-K- is observed with a significance of 8.7 standard deviations, and evidence at the level of 3.4 standard deviations is found for the Ξb-→pK-π- decay. Results are reported, relative to the B-→K+K-K- normal...

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