Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/132730
Title: Measurement of the CP Violation Parameter AΓ in D0→K+K− and D0→π+π− Decays
Author: Badalov, Alexey
Calvo Gómez, Míriam
Camboni, Alessandro
Coquereau, Samuel
Fernandez, G.
Garrido Beltrán, Lluís
Gascón Fora, David
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Marin Benito, Carla
Picatoste Olloqui, Eduardo
Rives Molina, Vicente José
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Experiments
Particle physics
Experiments
Issue Date: 28-Jun-2017
Publisher: American Physical Society
Abstract: Asymmetries in the time-dependent rates of D-0 -> K+K- and D-0 -> pi(+)pi(-)decays are measured in a pp collision data sample collected with the LHCb detector during LHC Run 1, corresponding to an integrated luminosity of 3 fb(-1). The asymmetries in effective decay widths between D-0 and (D) over bar (0) decays, sensitive to indirect CP violation, are measured to be A(r)(K+K-) = (-0.30 +/- 0.32 0.10) x 10(-3) and A(r) pi(+)pi(-)) = (0.46 +/- 0.58 +/- 0.12) x 10(-3), where the first uncertainty is statistical and the second systematic. These measurements show no evidence for CP violation and improve on the precision of the previous best measurements by nearly a factor of two.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.118.261803
It is part of: Physical Review Letters, 2017, vol. 118, num. 26, p. 261803
URI: http://hdl.handle.net/2445/132730
Related resource: https://doi.org/10.1103/PhysRevLett.118.261803
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Electrònica)
Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

Files in This Item:
File Description SizeFormat 
678005.pdf529.15 kBAdobe PDFView/Open


This item is licensed under a Creative Commons License Creative Commons