Published 2017
| Version v1
Journal article
Measurement of the difference of time-integrated CP asymmetries in D0→ K-K+ and D0→ π-π+ decays at LHCb
Creators
- 1. INFN, Sezione di Bologna and Bologna Univ., Dipt. di Fisica e Astronomia, Bologna (Italy)
Description
This document reports on the measurement of the CP asymmetries difference, ΔACP, in D0 → K−K+ and D0 → π−π+ decays, obtained using the data collected at LHCb in 2011 and 2012, corresponding to an integrated luminosity of 3 fb−1. The measured value of ΔACP ≡ ACP (K−K+)−ACP (π−π+) is (−0.10± 0.08 (stat) ± 0.03 (syst))%. This result is the most precise measurement, obtained from a single experiment, in the search of direct CP violation in the D0 meson decays.
Additional details
Publishing Information
- Journal Title
- Nuovo Cimento C. (Online)
- Journal Volume
- 40
- Journal Issue
- 1
- Journal Page Range
- p. 1-3
- ISSN
- 1826-9885
INIS
- Country of Publication
- Italy
- Country of Input or Organization
- Italy
- INIS RN
- 48081502
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CERN LHC; CHARM PARTICLES; CP INVARIANCE; D MESONS; KOBAYASHI-MASKAWA MATRIX; PROTON-PROTON INTERACTIONS
- Descriptors DEC
- ACCELERATORS; BARYON-BARYON INTERACTIONS; BOSONS; CHARM PARTICLES; CHARMED MESONS; CYCLIC ACCELERATORS; ELEMENTARY PARTICLES; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; INVARIANCE PRINCIPLES; MATRICES; MESONS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PROTON-NUCLEON INTERACTIONS; PSEUDOSCALAR MESONS; STORAGE RINGS; SYNCHROTRONS