Title:
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Measurement of the time-integrated CP asymmetry in D 0 → K 0S K 0S decays
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Author:
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Badalov, Alexey; Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN
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Other authors:
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Universitat Ramon Llull. La Salle; CERN |
Abstract:
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The time-integrated CP asymmetry in the decay D 0 → K 0S K 0S is measured using 3 fb−1 of proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The flavour of the D 0 meson is determined by use of the decay D *+ → D 0 π + and its charge conjugate mode. The result is ACP=−0.029±0.052±0.022, where the first uncertainty is statistical and the second systematic. The result is consistent with Standard Model expectations and improves the uncertainty with respect to the only previous measurement of this quantity by more than a factor of three. |
Publication date:
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2015-10-08 |
Subject (UDC):
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539 - Constitució física de la matèria |
Subject(s):
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Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) Col·lisions (Física nuclear) Protons |
Rights:
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L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by/4.0/
© CERN |
Pages:
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15 p. |
Document type:
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Article Article - Published version |
DOI:
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https://doi.org/10.1007/JHEP10(2015)055
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Published by:
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Springer
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Publish at:
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Journal of High Energy Physics, 2015, Vol. 2015, No.10 (Octubre)
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