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Observation of the resonant character of the Z (4430)-state

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成果类型:
期刊论文
作者:
Aaij, R.*;Adeva, B.;Adinolfi, M.;Affolder, A.;Ajaltouni, Z.;...
通讯作者:
Aaij, R.
作者机构:
[Jans, E.; Ketel, T.; van den Brand, J.; Tuning, N.; Tolk, S.; Pellegrino, A.; Syropoulos, V.; van Tilburg, J.; Martinelli, M.; Merk, M.; Ali, S.; Koppenburg, P.; Dettori, F.; Tsopelas, P.; Snoek, H.; Bauer, Th.; de Vries, J. A.; Koopman, R. F.; Heijne, V.; van Leerdam, J.; Raven, G.; Aaij, R.; Martinez Santos, D.; Lambert, R. W.; De Bruyn, K.; Oggero, S.; Kozlinskiy, A.; David, P. N. Y.; van Beuzekom, M.; Schiller, M.; Farinelli, C.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
[Hicheur, A.; Gomes, A.; Bediaga, I.; Massafferri, A.; Rodrigues, A. B.; dos Reis, A. C.; De Miranda, J. M.; Ferreira Rodrigues, F.] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.
[Otalora Goicochea, J. M.; Lopes, J. H.; Martins Tostes, D.; Polycarpo, E.; Potterat, C.; Souza De Paula, B.; Akiba, K. Carvalho; Francisco, O.; De Paula, L.; Nasteva, I.; Gandelman, M.; Amato, S.; Rangel, M. S.; Szilard, D.; Salustino Guimaraes, V.; Vieira, D.] Univ Fed Rio de Janeiro, Rio De Janeiro, Brazil.
[Gao, Y.; Yang, Z.; Wu, S.; Li, Y.; Zhang, Y.; Yuan, X.; Zhong, L.; Jing, F.; An, L.; Lu, H.; Zhang, F.] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China.
[Marchand, J. F.; Tisserand, V.; Decamp, D.; Ghez, Ph.; Qian, W.; Beaucourt, L.; Tournefier, E.; Pietrzyk, B.; Lees, J. -P.; T'Jampens, S.; Minard, M. -N.; Deleage, N.] Univ Savoie, CNRS, IN2P3, LAPP, Annecy Le Vieux, France.
通讯机构:
[Aaij, R.] N
Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
语种:
英文
期刊:
PHYSICAL REVIEW LETTERS
ISSN:
0031-9007
年:
2014
卷:
112
期:
22
页码:
222002
基金类别:
CERN; CAPES (Brazil)CAPES; 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); Region Auvergne (France)Region Auvergne-Rhone-Alpes; BMBF (Germany)Federal Ministry of Education & Research (BMBF); DFG (Germany)German Research Foundation (DFG); HGF (Germany); MPG (Germany)Max Planck Society; SFI (Ireland)Science Foundation Ireland; INFN (Italy)Istituto Nazionale di Fisica Nucleare (INFN); FOM (Netherlands)FOM (The Netherlands)Netherlands Government; NWO (Netherlands)Netherlands Organization for Scientific Research (NWO)Netherlands Government; SCSR (Poland); MEN/IFA (Romania); MinES (Russia); Rosatom (Russia); RFBR (Russia)Russian Foundation for Basic Research (RFBR); NRC "Kurchatov Institute" (Russia); MinECo (Spain); XuntaGal (Spain); GENCAT (Spain); SNSF (Switzerland)Swiss National Science Foundation (SNSF); SER (Switzerland); NASU (Ukraine); STFC (United Kingdom)UK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC); Royal Society (United Kingdom)Royal Society of London; NSF (USA)National Science Foundation (NSF); EPLANET; Marie Curie ActionsEuropean Commission; ERCEuropean Research Council (ERC)European Commission; IN2P3 (France); KIT (Germany); SURF (Netherlands); PIC (Spain); GridPP (United Kingdom); Science and Technology Facilities CouncilUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC) [LHCb Upgrades, ST/K001418/1, ST/M001474/1, ST/K001604/1 DMUK, ST/H001026/2, ST/K00137X/1, ST/K502236/1, ST/J004855/1, ST/K001604/1 T2K, ST/K003534/1 GRIDPP, ST/L006146/1, ST/K001302/1, ST/K001604/1 LHCb Upgrades, ST/K00073X/1, ST/K001604/1, ST/M000761/1, ST/K001361/1 ATLAS, LHCb, 1225314, ST/H001093/2, ST/I000097/1, ST/L006340/1, ST/L001144/1, PP/E003095/1, PP/E000347/1, ST/K00140X/1, ST/L003538/1, ST/K001604/1 GRIDPP, ST/K001361/1 LHCb, ST/M001431/1, ST/K001361/1, ST/J005495/1, ST/K001604/1 LHCb, ST/I505572/1, ST/K001361/1 ATLAS Upgrades, 1415632, GRIDPP, ST/K003593/1 GRIDPP, ST/K001604/1 CMS Upgrade, 1225304, ST/K00140X/1 LHCb, ST/J004332/1, 1416165, ST/H001069/2, ST/K001604/1 SuperNEMO, ST/K001256/1, 1299204, ST/L00352X/1, ST/F007094/1, 1096173, 1208164, ST/K001361/1 LHCb Upgrades, ST/K003534/1, ST/L003392/1, ST/H001026/1, ST/K001604/1 MICE/UKNF, ST/H006737/1, ST/I003576/1, ST/K001361/1 MINOS/MINOS+, ST/H001093/1, ST/K003410/1, ST/G005974/1] Funding Source: researchfish; Division Of PhysicsNational Science Foundation (NSF)NSF - Directorate for Mathematical & Physical Sciences (MPS) [1205805] Funding Source: National Science Foundation
机构署名:
本校为其他机构
院系归属:
物理科学与技术学院
心理学院
摘要:
Resonant structures in B0 -K+ decays are analyzed by performing a four-dimensional fit of the decay amplitude, using pp collision data corresponding to 3fb-1 collected with the LHCb detector. The data cannot be described with K+Ï€- resonances alone, which is confirmed with a model-independent approach. A highly significant Z(4430)- φπ- component is required, thus confirming the existence of this state. The observed evolution of the Z(4430)- amplitude with the Ïâ€Ï€- mass establishes the resonant nature of this particle. The mass...

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