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A model-independent measurement of the CKM angle γ in partially reconstructed B± → D*h± decays with D → KS0h+h− (h = π, K)

Aaij, R. ; Ruiz-Vidal, Joan LU and Zunica, G. (2024) In Journal of High Energy Physics 2024(2).
Abstract
A measurement of CP-violating observables in B± → D*K± and B± → D*π± decays is made where the photon or neutral pion from the D*→ Dγ or D*→ Dπ0 decay is not reconstructed. The D meson is reconstructed in the self-conjugate decay modes, D → KS0π+π− or D → KS0K+K−. The distribution of signal yields in the D decay phase space is analysed in a model-independent way. The measurement uses a data sample collected in proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of approximately 9 fb−1. The B± → D*K± and B± → D*π±CP-violating observables are interpreted in terms of hadronic parameters and the CKM angle γ, resulting in a measurement of γ = (92−17+21)°. The total uncertainty... (More)
A measurement of CP-violating observables in B± → D*K± and B± → D*π± decays is made where the photon or neutral pion from the D*→ Dγ or D*→ Dπ0 decay is not reconstructed. The D meson is reconstructed in the self-conjugate decay modes, D → KS0π+π− or D → KS0K+K−. The distribution of signal yields in the D decay phase space is analysed in a model-independent way. The measurement uses a data sample collected in proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of approximately 9 fb−1. The B± → D*K± and B± → D*π±CP-violating observables are interpreted in terms of hadronic parameters and the CKM angle γ, resulting in a measurement of γ = (92−17+21)°. The total uncertainty includes the statistical and systematic uncertainties, and the uncertainty due to external strong-phase inputs. © The Author(s) 2024. (Less)
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publishing date
type
Contribution to journal
publication status
published
subject
keywords
B Physics, CKM Angle Gamma, CP Violation, Hadron-Hadron Scattering
in
Journal of High Energy Physics
volume
2024
issue
2
article number
118
publisher
Springer
external identifiers
  • scopus:85193991964
ISSN
1029-8479
DOI
10.1007/JHEP02(2024)118
language
English
LU publication?
yes
id
4273e328-44cf-48a3-9697-9393a53a0902
date added to LUP
2024-08-22 14:40:07
date last changed
2024-08-22 14:40:57
@article{4273e328-44cf-48a3-9697-9393a53a0902,
  abstract     = {{A measurement of CP-violating observables in B± → D*K± and B± → D*π± decays is made where the photon or neutral pion from the D*→ Dγ or D*→ Dπ0 decay is not reconstructed. The D meson is reconstructed in the self-conjugate decay modes, D → KS0π+π− or D → KS0K+K−. The distribution of signal yields in the D decay phase space is analysed in a model-independent way. The measurement uses a data sample collected in proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of approximately 9 fb−1. The B± → D*K± and B± → D*π±CP-violating observables are interpreted in terms of hadronic parameters and the CKM angle γ, resulting in a measurement of γ = (92−17+21)°. The total uncertainty includes the statistical and systematic uncertainties, and the uncertainty due to external strong-phase inputs. © The Author(s) 2024.}},
  author       = {{Aaij, R. and Ruiz-Vidal, Joan and Zunica, G.}},
  issn         = {{1029-8479}},
  keywords     = {{B Physics; CKM Angle Gamma; CP Violation; Hadron-Hadron Scattering}},
  language     = {{eng}},
  number       = {{2}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{A model-independent measurement of the CKM angle γ in partially reconstructed B± → D*h± decays with D → KS0h+h− (h = π, K)}},
  url          = {{http://dx.doi.org/10.1007/JHEP02(2024)118}},
  doi          = {{10.1007/JHEP02(2024)118}},
  volume       = {{2024}},
  year         = {{2024}},
}