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Title: Search for CP violation in D + → ϕπ + and D_s+to K_S^0{π+} decays
Author: Abellan Beteta, Carlos
Calvo Gómez, Míriam
Camboni, Alessandro
Comerma Montells, Albert
Oyanguren Campos, Arantza de
Garrido Beltrán, Lluís
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
López Asamar, Elias
Pérez-Calero Yzquierdo, Antonio
Picatoste Olloqui, Eduardo
Potterat, Cédric
Rives Molina, Vicente José
Ruiz, Hugo (Ruiz Pérez)
Vázquez Gómez, Ricard
Vilasis-Cardona, Xavier
Ruiz Valls, Pablo
LHCb Collaboration
Keywords: Violació CP (Física nuclear)
Teoria quàntica de camps
Teoria quàntica
CP violation (Nuclear physics)
Quantum field theory
Quantum theory
Issue Date: Jun-2013
Publisher: Springer Verlag
Abstract: A search for CP violation in D + → ϕπ + decays is performed using data collected in 2011 by the LHCb experiment corresponding to an integrated luminosity of 1.0 fb−1 at a centre of mass energy of 7 TeV. The CP -violating asymmetry is measured to be (−0.04 ± 0.14 ± 0.14)% for candidates with K − K + mass within 20 MeV/c 2 of the ϕ meson mass. A search for a CP -violating asymmetry that varies across the ϕ mass region of the D + → K − K + π + Dalitz plot is also performed, and no evidence for CP violation is found. In addition, the CP asymmetry in the D+s→K0Sπ+ decay is measured to be (0.61 ± 0.83 ± 0.14)%.
Note: Reproducció del document publicat a:
It is part of: Journal of High Energy Physics, 2013, vol. 6, num. 112
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ISSN: 1126-6708
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

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