Towards the precision measurement of CP violation in B → D*μν decays at LHCb-Reference-Cited by-同舟云学术

Towards the precision measurement of CP violation in B → D*μν decays at LHCb

Published:2023-07-07 Issue:7 Volume:2023 Page:
ISSN:1029-8479
Container-title:Journal of High Energy Physics
language:en
Short-container-title:J. High Energ. Phys.

Author:

Dedu V.^ORCID,Poluektov A.^ORCID

Abstract

Abstract Measurement of CP-violating observables in semileptonic decays is a sensitive null-test of the Standard Model: any CP violation would be an unambiguous sign of New Physics effects. The model-independent technique to measure parity and CP-odd observables in the B → D∗μν decays is proposed, which effectively cancels out parity-even terms in the decay density together with the associated theory uncertainty. The feasibility study is performed with pseudoexperiments, and the sensitivity at the LHCb experiment is estimated. Finally, the most significant systematic effects and the data-driven ways to control them are considered.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Link

https://link.springer.com/content/pdf/10.1007/JHEP07(2023)063.pdf

Reference44 articles.

1. BaBar collaboration, Measurement of branching fractions and rate asymmetries in the rare decays B → K(∗)ℓ+ℓ−, Phys. Rev. D 86 (2012) 032012 [arXiv:1204.3933] [INSPIRE].

2. Belle collaboration, Lepton-flavor-dependent angular analysis of B → K∗ℓ+ℓ−, Phys. Rev. Lett. 118 (2017) 111801 [arXiv:1612.05014] [INSPIRE].

3. BELLE collaboration, Test of lepton flavor universality and search for lepton flavor violation in B → Kℓℓ decays, JHEP 03 (2021) 105 [arXiv:1908.01848] [INSPIRE].

4. Belle collaboration, Test of lepton-flavor universality in B → K∗ℓ+ℓ− decays at Belle, Phys. Rev. Lett. 126 (2021) 161801 [arXiv:1904.02440] [INSPIRE].

5. LHCb collaboration, Test of lepton universality using B+ → K+ℓ+ℓ− decays, Phys. Rev. Lett. 113 (2014) 151601 [arXiv:1406.6482] [INSPIRE].