Journal
PHYSICS LETTERS B
Volume 726, Issue 4-5, Pages 623-633Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2013.09.011
Keywords
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Funding
- CAPES (Brazil)
- FAPERJ (Brazil)
- FINEP (Brazil)
- CERN
- NSFC (China)
- CNRS/IN2P3 (France)
- Region Auvergne (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- MPG (Germany)
- SFI (Ireland)
- INFN (Italy)
- FOM (The Netherlands)
- NWO (The Netherlands)
- SCSR (Poland)
- MEN/IFA (Romania)
- MinES (Russia)
- Rosatom (Russia)
- RFBR (Russia)
- NRC Kurchatov Institute (Russia)
- MinECo (Spain)
- XuntaGal (Spain)
- GENCAT (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NAS Ukraine (Ukraine)
- STFC (United Kingdom)
- NSF (USA)
- ERC
- IN2P3 (France)
- KIT (Germany)
- PIC (Spain)
- GridPP (United Kingdom)
- STFC [ST/K001604/1, ST/G005974/1, ST/K00137X/1, ST/K00073X/1, ST/K004646/1, ST/H00081X/1, ST/K003410/1, ST/H001093/2, ST/M001431/1, ST/K000748/1, ST/J004332/1, ST/K001361/1, ST/F007094/1, ST/H001069/2, ST/M000761/1, ST/J005568/1, ST/L00352X/1, ST/K00140X/1, ST/K000705/1, ST/H001085/2, ST/H006737/1, ST/H001093/1, ST/L001195/1, ST/H001085/1, ST/H00100X/1, ST/F008015/1, PP/E000355/1, ST/L003392/1, PP/E000347/1, ST/H00081X/2, ST/L001144/1, ST/H00100X/2, ST/L003112/1, LHCb Upgrades, ST/I505572/1, LHCb] Funding Source: UKRI
- Science and Technology Facilities Council [ST/K000705/1, ST/H006737/1, ST/K001310/1 LHCb Upgrades, ST/K001604/1 DMUK, ST/J005568/1, ST/K003410/1, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP, ST/H00100X/2, ST/L001144/1, ST/K001604/1 MICE/UKNF, ST/K001310/1, ST/J004332/1, ST/K000748/1, GRIDPP, ST/K00073X/1, ST/L003392/1, ST/K001310/1 ATLAS Upgrades, ST/K00140X/1 LHCb, ST/K001361/1 ATLAS Upgrades, 1208164, LHCb, ST/K004646/1, PP/E000355/1, ST/H00100X/1, ST/K001361/1 LHCb, ST/K001310/1 LHCb, ST/K00140X/1, ST/H001085/2, ST/F007094/1, ST/K001604/1, ST/F008015/1, ST/K001418/1, ST/H001093/2, ST/K001604/1 T2K, ST/K00137X/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/L003112/1, ST/L00352X/1, ST/H001093/1, ST/K001361/1, ST/K001604/1 CMS Upgrade, ST/K001256/1, ST/M000761/1, ST/K001604/1 SuperNEMO, ST/K001361/1 ATLAS, ST/H00081X/2, ST/K001604/1 LHCb, ST/L001195/1, LHCb Upgrades, ST/H00081X/1, 1096173, ST/M001474/1, ST/I505572/1, ST/G005974/1, ST/H001085/1, ST/K001310/1 ATLAS, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/M001431/1, ST/K003593/1 GRIDPP] Funding Source: researchfish
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A search for CP violation in the phase-space structures of 130 and 15 decays to the final states K-K+pi(-)pi(+) and pi(-)pi(+)pi(+)pi(-) is presented. The search is carried out with a data set corresponding to an integrated luminosity of 1.0 fb(-1) collected in 2011 by the LHCb experiment in pp collisions at a centre-of-mass energy of 7 TeV. For the K-K+pi(-)pi(+) final state, the four-body phase space is divided into 32 bins, each bin with approximately 1800 decays. The p-value under the hypothesis of no CP violation is 9.1%, and in no bin is a CP asymmetry greater than 6.5% observed. The phase space of the pi(-)pi(+)pi(+)pi(-). final state is partitioned into 128 bins, each bin with approximately 2500 decays. The p-value under the hypothesis of no CP violation is 41%, and in no bin is a CP asymmetry greater than 5.5% observed. All results are consistent with the hypothesis of no CP violation at the current sensitivity. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.
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