Journal
PHYSICAL REVIEW LETTERS
Volume 110, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.241801
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Funding
- DOE (USA)
- NSF (USA)
- CEA (France)
- CNRS/IN2P3 (France)
- MON (Russia)
- NRC KI (Russia)
- RFBR (Russia)
- CNPq (Brazil)
- FAPERJ (Brazil)
- FAPESP (Brazil)
- FUNDUNESP (Brazil)
- DAE (India)
- DST (India)
- Colciencias (Colombia)
- CONACyT (Mexico)
- NRF (Korea)
- FOM (The Netherlands)
- STFC (United Kingdom)
- Royal Society (United Kingdom)
- MSMT (Czech Republic)
- GACR (Czech Republic)
- BMBF (Germany)
- DFG (Germany)
- SFI (Ireland)
- Swedish Research Council (Sweden)
- CAS (China)
- CNSF (China)
- STFC [ST/K000195/1, ST/M000664/1, ST/K000713/1, ST/H001069/2, ST/J501074/1, ST/H00095X/1, ST/F007418/1, ST/K50208X/1, ST/L00335X/1, PP/E000487/1, ST/F00754X/1, ST/I505756/1, ST/H00095X/2, ST/K001388/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien
- Division Of Physics [0969555, 1206092] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [1205960] Funding Source: National Science Foundation
- ICREA Funding Source: Custom
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We present a measurement of the direct CP-violating charge asymmetry in B-+/- mesons decaying to J/psi K-+/- and J/psi pi(+/-) where J/psi decays to mu(+)mu(-), using the full run II data set of 10.4 fb(-1) of proton-antiproton collisions collected using the D0 detector at the Fermilab Tevatron Collider. A difference in the yield of B- and B+ mesons in these decays is found by fitting to the difference between their reconstructed invariant mass distributions resulting in asymmetries of A(J/psi K) = [0.59 +/- 0.37]%, which is the most precise measurement to date, and A(J/psi pi) = [-4.2 +/- 4.5]%. Both measurements are consistent with standard model predictions.
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