Please use this identifier to cite or link to this item:
Title: Measurement of CP observables in B± → D(⁎)K± and B± → D(⁎)π± decays
Author: Alfonso Albero, A.
Calvo Gomez, M.
Camboni, Alessandro
Coquereau, Samuel
Garrido Beltrán, Lluís
Gascón Fora, David
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
LCHb Collaboration
Keywords: Hadrons
Gran Col·lisionador d'Hadrons
Física de partícules
Large Hadron Collider (France and Switzerland)
Particle physics
Issue Date: 2018
Publisher: Elsevier B.V.
Abstract: Measurements of CP observables in B± → D(∗)K ± and B± → D(∗) π± decays are presented, where D(∗) indicates a neutral D or D∗ meson that is an admixture of D(∗)0 and D¯ (∗)0 states. Decays of the D∗ meson to the Dπ0 and Dγ final states are partially reconstructed without inclusion of the neutral pion or photon, resulting in distinctive shapes in the B candidate invariant mass distribution. Decays of the D meson are fully reconstructed in the K ±π∓, K + K − and π+π− final states. The analysis uses a sample of charged B mesons produced in pp collisions collected by the LHCb experiment, corresponding to an integrated luminosity of 2.0, 1.0 and 2.0 fb−1 taken at centre-of-mass energies of √s = 7, 8 and 13 TeV, respectively. The study of B± → D∗K ± and B± → D∗π± decays using a partial reconstruction method is the first of its kind, while the measurement of B± → D K ± and B± → Dπ± decays is an update of previous LHCb measurements. The B± → D K ± results are the most precise to date.
Note: Reproducció del document publicat a:
It is part of: Physics Letters B, 2018, vol. 777, num. 2018, p. 16-30
Related resource:
ISSN: 0370-2693
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

Files in This Item:
File Description SizeFormat 
684718.pdf3.32 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons