Journal
PHYSICAL REVIEW D
Volume 82, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.82.032001
Keywords
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Funding
- DOE (USA)
- NSF (USA)
- CEA (France)
- CNRS/IN2P3 (France)
- FASI (Russia)
- Rosatom (Russia)
- RFBR (Russia)
- CNPq (Brazil)
- FAPERJ (Brazil)
- FAPESP (Brazil)
- FUNDUNESP (Brazil)
- DAE (India)
- DST (India)
- Colciencias (Colombia)
- CONACyT (Mexico)
- KRF (Korea)
- KOSEF (Korea)
- CONICET (Argentina)
- UBACyT (Argentina)
- FOM (The Netherlands)
- STFC (United Kingdom)
- Royal Society (United Kingdom)
- MSMT (Czech Republic)
- GACR (Czech Republic)
- CRC Program (Canada)
- NSERC (Canada)
- BMBF (Germany)
- DFG (Germany)
- SFI (Ireland)
- The Swedish Research Council (Sweden)
- CAS (China)
- CNSF (China)
- STFC [PP/E000487/1, ST/F00754X/1, ST/H001166/1, ST/F007418/1, ST/H00095X/2, PP/F000863/1, ST/I505756/1, ST/H004068/1, ST/H00095X/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H001166/1, ST/H00095X/2, PP/E000487/1, ST/H00095X/1, ST/F007418/1, ST/I505756/1, ST/F00754X/1, PP/D004284/1, PP/F000863/1, ST/H004068/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [968284] Funding Source: National Science Foundation
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We measure the charge asymmetry A of like-sign dimuon events in 6.1 fb(-1) of p (p) over bar collisions recorded with the D0 detector at a center-of-mass energy root s = 1.96 TeV at the Fermilab Tevatron collider. From A, we extract the like-sign dimuon charge asymmetry in semileptonic b-hadron decays: A(sl)(b) = -0.00957 +/- 0.00251 (stat) +/- 0.00146 (syst). This result differs by 3.2 standard deviations from the standard model prediction A(sl)(b)(SM) = (-2.3(0.6)(+0.5)) x 10(-4) and provides first evidence of anomalous CP violation in the mixing of neutral B mesons.
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