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Precision Measurement of CP Violation in the Penguin-Mediated Decay B0s →φφ

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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:
Aaij, R
作者机构:
[Jans, E.; Ketel, T.; Greeven, L. M.; Geertsema, R. E.; Pellegrino, A.; Gabriel, E.; Butter, J. S.; Koppenburg, P.; Klaver, S.; Galati, M. D.; Heijhoff, K.; Akiba, K.; Aaij, R.; Sole, S. Ferreres; Kostiuk, I.; Biolchini, A.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.
[Da Graca, U. De Freitas Carneiro; Gomes, A.; Fantini, L.; Miranda, J. M. De; dos Reis, A. C.; Falcao, L. N.; Bediaga, I. B.; Leite, J. Baptista de Souza; Torres, M. Cruz] Ctr Brasileiro Pesquisas Fis CBPF, Rio De Janeiro, Brazil.
[Hicheur, A.; Goicochea, J. M. Otalora; Rodrigues, F. Ferreira; De Paula, L.; Gandelman, M.; Amato, S.] Univ Fed Rio De Janeiro UFRJ, Rio De Janeiro, Brazil.
[Hu, X.; Gu, C.; Gong, G.; Kang, Y.; Zhu, X.; Zeng, M.; Dong, C.; Zhang, L.] Tsinghua Univ, Ctr High Energy Phys, Beijing, Peoples R China.
[Chen, S.; Jiang, X.; Batsukh, B.; Zou, Q.] Inst High Energy Phys IHEP, 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 LETTERS
ISSN:
0031-9007
年:
2023
卷:
131
期:
17
页码:
171802
基金类别:
Key Research Program of Frontier Sciences of CAS; Fundamental Research Funds for the Central Universities, and Science and Tech; 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:
A flavor-tagged time-dependent angular analysis of the decay B_{s}^{0}→ϕϕ is performed using pp collision data collected by the LHCb experiment at the center-of-mass energy of 13TeV, corresponding to an integrated luminosity of 6  fb^{-1}. The CP-violating phase and direct CP-violation parameter are measured to be ϕ_{s}^{ss[over ¯]s}=-0.042±0.075±0.009  rad and |λ|=1.004±0.030±0.009, respectively, assuming the same values for all polarization states of the ϕϕ system. In these results, the first uncertainties are statistical and ...

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