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Observation of a new Ξb0 state

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成果类型:
期刊论文
作者:
Aaij, R.*;Beteta, C. Abellan;Ackernley, T.;Adeva, B.;Adinolfi, M.;...
通讯作者:
Aaij, R.
作者机构:
[Ketel, T.; Tuning, N.; Hynds, D.; Mauri, A.; Usachov, A.; Lukashenko, V; Kuindersma, H. S.; de Vries, J. A.; Heijhoff, K.; Veronesi, M.; Aaij, R.; Snoch, A.; De Bruyn, K.; van Beuzekom, M.; Martinez, M. Lucio; Kostiuk, I; Jans, E.; Greeven, L. M.; Esen, S.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; Merk, M.; Onderwater, C. J. G.; van Veghel, M.; Butter, J. S.; Koppenburg, P.; Pawley, C. J.; Soares, M. Senghi; Akiba, K. Carvalho; Klaver, S.; Gras, C. Sanchez; Raven, G.; Sole, S. Ferreres; Sierra, C. Vazquez; Schubiger, M.; Hulsbergen, W.] Nikhef Natl Inst Subatom Phys, Amsterdam, Netherlands.
[Leite, J. Baptista; Massafferri, A.; De Miranda, J. M.; Torres, M. Cruz; Machado, D. Torres; Gomes, A.; dos Reis, A. C.; Bediaga, I] Ctr Brasileiro Pesquisas Fis CBPF, Rio De Janeiro, Brazil.
[De Paula, B. Souza; Lopes, J. H.; Goicochea, J. M. Otalora; Polycarpo, E.; Gandelman, M.; Gobel, C.; Rangel, M. S.; Hicheur, A.; Nasteva, I; Garcia, L. Meyer; Rodrigues, F. Ferreira; De Paula, L.; Amato, S.; De Almeida, F. L. Souza; Abrantes, F. Goncalves] Univ Fed Rio de Janeiro UFRJ, Rio De Janeiro, Brazil.
[Yang, Z.; Cai, H.; Jiang, F.; Bian, L.; Dey, B.; Fan, J.; Ren, Z.; Xu, L.; Huang, X.; Wang, J.; Wang, M.; Gu, C.; Gong, G.; Kang, Y.; Fang, B.; Chen, C.; Zhu, X.; Sun, L.; Luo, Y.; Yang, D.; Mu, H.; Zeng, M.; Zhang, L.; Gan, Y.; Liu, X.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.
[Gao, Y.; Zhang, S.; Zhang, Y.; Xu, A.; Wang, J.; Shen, Z.; Xu, Z.] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China.
通讯机构:
[Aaij, R.] N
Nikhef Natl Inst Subatom Phys, Amsterdam, Netherlands.
语种:
英文
期刊:
PHYSICAL REVIEW D
ISSN:
2470-0010
年:
2021
卷:
103
期:
1
页码:
012004
基金类别:
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); MOST (China)Ministry of Science and Technology, China; 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); MPG (Germany)Max Planck Society; NWO(Netherlands)Netherlands Organization for Scientific Research (NWO)Netherlands Government; MNiSW (Poland)Ministry of Science and Higher Education, Poland; NCN (Poland); MEN/IFA (Romania); MICINN (Spain)Spanish Government; SNSF (Switzerland)Swiss National Science Foundation (SNSF); SER (Switzerland); NASU (Ukraine); NSF (USA)National Science Foundation (NSF); DESY (Germany); INFN (Italy)Istituto Nazionale di Fisica Nucleare (INFN); PIC (Spain); GridPP (United Kingdom); Yandex LLC (Russia); CSCS (Switzerland); IFIN-HH (Romania); PL-GRID (Poland); OSC (USA); AvH Foundation (Germany)Alexander von Humboldt Foundation; EPLANET, Marie Sklodowska-Curie Actions (European Union)European Union (EU); ERC (European Union)European Union (EU)European Research Council (ERC); ANR (France)French National Research Agency (ANR); Labex P2IO (France); Region Auvergne-Rhone-Alpes (France)Region Auvergne-Rhone-Alpes; Key Research Program of Frontier Sciences of CAS (China); CAS PIFI (China); housand Talents Program (China); Sci. & Tech. Program of Guangzhou (China); RFBR (Russia)Russian Foundation for Basic Research (RFBR); RSF (Russia)Russian Science Foundation (RSF); GVA (Spain); XuntaGal (Spain); GENCAT (Spain); Royal Society (United Kingdom)Royal Society of London; Leverhulme Trust (United Kingdom)Leverhulme Trust; STFC (United Kingdom)UK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC); DOE NP (USA); CERN (France); IN2P3 (France); KIT (Germany); SURF (Netherlands); RRCKI (Russia); CBPF (Brazil); A*MIDEX (France)French National Research Agency (ANR); OCEVU (France)
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:
Using a proton-proton collision data sample collected by the LHCb experiment, corresponding to an integrated luminosity of 8.5 fb(-1), the observation of a new excited Xi(0)(b) resonance decaying to the Xi(-)(b)pi(+) final state is presented. The state, referred to as Xi(b) (6227)(0), has a measured mass and natural width of m(Xi(b)(6227)(0)) = 6227.1(-1.5)(+1.4) +/- 0.5 MeV and Gamma(Xi(b)(6227)(0)) = 18.6(-4.1)(+5.0) +/- 1.4 MeV, where the uncertainties are statistical and systematic. The production rate of the Xi(b)(6227)(0) state relative to that of the Xi(-)(b) baryon in the kinematic reg...

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