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Study of the B- → Λc+(Λ)over-barc-K- decay

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成果类型:
期刊论文
作者:
Aaij, R.;Abdelmotteleb, A. S. W.;Beteta, C. Abellan;Abudinen, F.;Ackernley, T.;...
通讯作者:
Evans, T
作者机构:
[Mulder, M.; Tuning, N.; Mauri, A.; Usachov, A.; Lukashenko, V.; Galati, M. D.; Heijhoff, K.; Veronesi, M.; Akiba, K.; Aaij, R.; Snoch, A.; De Bruyn, K.; van Beuzekom, M.; Biolchini, A.; Jans, E.; Greeven, L. M.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; Merk, M.; Onderwater, C. J. G.; van Veghel, M.; Butter, J. S.; Koppenburg, P.; Kostiuk, I.; Schubiger, M.; Hulsbergen, W.] Univ Groningen, Van Swinderen Inst, Groningen, Netherlands.
[Baptista de Souza Leite, J.; De Freitas Carneiro Da Graca, U.; Massafferri, A.; Cruz Torres, M.; De Miranda, J. M.; Falcao, L. N.; Bediaga, I. B.; Gomes, A.; Torres Machado, D.; dos Reis, A. C.] Ctr Brasileiro Pesquisas Fis CBPF, Rio De Janeiro, Brazil.
[Lopes, J. H.; Polycarpo, E.; Souza De Paula, B.; Souza De Almeida, F. L.; Gandelman, M.; Rangel, M. S.; Ferreira Rodrigues, F.; Hicheur, A.; Otalora Goicochea, J. M.; Garcia, L. Meyer; De Paula, L.; Nasteva, I.; Amato, S.] Univ Fed Rio Janeiro UFRJ, Rio De Janeiro, Brazil.
[Wang, Z.; Qu, S.; Qin, N.; Ren, Z.; Xu, L.; Tou, D. Y.; Wang, J.; Li, A.; Hu, X.; Tan, Y.; Gu, C.; Gong, G.; Kang, Y.; Qi, H. R.; Chen, C.; Zhu, X.; Luo, Y.; Yang, D.; Mu, H.; Zeng, M.; Dong, C.; Zhang, L.; Gan, Y.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.
[Lu, Y.; Li, Y.; Ma, L.; Sheng, S.; Li, T.; Wang, J.; Chen, S.; Tobin, M.; Miao, D.; Grieser, N. A.; Jiang, X.; Batsukh, B.; Zou, Q.; Liu, S.; Carli, I.] Inst High Energy Phys IHEP, Beijing, Peoples R China.
通讯机构:
[Evans, T ] U
Univ Manchester, Dept Phys & Astron, Manchester, Lancs, England.
语种:
英文
期刊:
PHYSICAL REVIEW D
ISSN:
2470-0010
年:
2023
卷:
108
期:
1
基金类别:
BMBF, DFG; CERN; CAPES; CNPq; FAPERJ; FINEP (Brazil); MOST; NSFC (China); CNRS/IN2P3 (France); BMBF; DFG; MPG (Germany); INFN (Italy); NWO (Netherlands); MNiSW; NCN (Poland); MEN/IFA (Romania); MICINN (Spain); SNSF (Switzerland); SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); DOE NP; NSF (USA); ARC; ARDC (Australia); Minciencias (Colombia); AvH Foundation (Germany); EPLANET; Marie Sklodowska-Curie Actions; ERC (European Union); A*MIDEX; ANR; IPhU; Labex P2IO; Region Auvergne-Rhone-Alpes (France); Key Research Program of Frontier Sciences of CAS; CAS PIFI; CAS CCEPP; Fundamental Research Funds for the Central Universities; Sci. amp; Tech. Program of Guangzhou (China); GVA; XuntaGal; GENCAT; Prog. Atraccion Talento; CM (Spain); SRC (Sweden); Leverhulme Trust; Royal Society; UKRI (United Kingdom)
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:
The decay B- -> Lambda(+)(c)(Lambda) over bar K--(c)- is studied in proton-proton collisions at a center-of-mass energy of root s = 13 TeV using data corresponding to an integrated luminosity of 5 fb(-1) collected by the LHCb experiment. In the Lambda K-+(c)- system, the Xi(c)(2930)(0) state observed at the BABAR and Belle experiments is resolved into two narrower states, Xi(c)(2923)(0) and Xi(c)(2939)(0), whose masses and widths are measured to be m(Xi(c)(2930)(0) = 2924.5 +/- 0.4 +/- 1.1 Mev, m Xi(c)(2930)(0)) = 2938.5 +/- 0.9 +/- 2.3 Mev, Gamma(Xi(c)(2930)(0)) = 4.8 +/- 0.9 +/- 1.5 MeV, Gam...

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