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Observation and branching fraction measurement of the decay Ξb- → Λ0 bπ -

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成果类型:
期刊论文
作者:
Aaij, R.;Abdelmotteleb, A. S. W.;Abellan Beteta, C.;Abudinen, F.;Ackernley, T.;...
通讯作者:
Aaij, R
作者机构:
[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.; Santoro, L.] 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.; Gomes, A.; De Paula, L.; Nasteva, I.; Amato, S.; Meyer Garcia, L.] Univ Fed Rio de 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.; Song, Y.; Tan, Y.; Gong, G.; Lian, Z.; Kang, Y.; Qi, H. R.; Zhu, X.; Luo, Y.; Yang, D.; Mu, H.; Zeng, M.; Dong, C.; Zhang, L.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.
[Lu, Y.; Li, Y.; Yuan, X.; Sheng, S.; Li, T.; Wang, J.; Chen, S.; Xu, Z.; Tobin, M.; Miao, D.; Jiang, X.; Batsukh, B.; Zou, Q.; Feng, M.; Liu, S.; Xiang, Z.] Inst High Energy Phys IHEP, Beijing, Peoples R China.
[Gao, Y.; Yang, Z.; Zhou, T.; Dai, X.; Zhang, S.; Yang, X.; Yu, C. Y.; Zhang, Y.; Tong, X.; Shang, Y.; Jiang, Y. J.; Mu, Z. M.; Wang, J.; Wan, G.; Shen, Z.; Hu, W.; Guz, Y.; Saur, M.; Wei, Y.; Song, Y. S.; Wu, Y.; An, L.; Zhang, C.] Peking Univ, Sch Phys State Key Lab Nucl Phys & Technol, Beijing, Peoples R China.
通讯机构:
[Aaij, R ] N
Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
语种:
英文
期刊:
PHYSICAL REVIEW D
ISSN:
2470-0010
年:
2023
卷:
108
期:
7
基金类别:
CBPF (Brazil); Polish WLCG (Poland); NERSC (USA); ARC; AvH Foundation (Germany); EPLANET, Marie Sklstrok;odowska-Curie Actions, ERC; ANR; Labex P2IO; Key Research Program of Frontier Sciences of CAS; Fundamental Research Funds for the Central Universities; Program of Guangzhou (China); GVA; XuntaGal, GENCAT; Atraccin Talento, CM (Spain); SRC (Sweden); Leverhulme Trust; Royal Society
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 E-b -> A0bx-- is observed using a proton-proton collision data sample collected at center-of-ffiffimass energy p s 1/4 13 TeV with the LHCb detector, corresponding to an integrated luminosity of 5.5 fb-1. This process is mediated by the s -> uu over bar d quark-level transition, where the b quark in the E-b baryon is a spectator in the decay. Averaging the results obtained using the two A0b decay modes, A0b -> A thorn c x-- and A0b -> A thorn c x--x- thorn x--, the relative production ratio is measured to be ofE-b =fA0b thorn BoE-b ->...

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