Journal
PHYSICAL REVIEW D
Volume 99, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.99.112005
Keywords
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Funding
- National Key Basic Research Program of China [2015CB856700]
- National Natural Science Foundation of China (NSFC) [11335008, 11375170, 11475164, 11475169, 11605196, 11605198, 11625523, 11635010, 11705192, 11735014, 11822506, 11835012]
- Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program
- NSFC [U1532102, U1532257, U1532258, U1732263, U1832103, U1832207]
- CAS Key Research Program of Frontier Sciences [QYZDJ-SSW-SLH003, QYZDJ-SSW-SLH040]
- 100 Talents Program of CAS
- INPAC
- Shanghai Key Laboratory for Particle Physics and Cosmology
- ERC [58462]
- German Research Foundation DFG [CRC 1044, FOR 2359]
- Istituto Nazionale di Fisica Nucleare, Italy
- Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) [530-4CDP03]
- Ministry of Development of Turkey [DPT2006K-120470]
- National Science and Technology fund
- Knut and AliceWallenberg Foundation (Sweden) [2016.0157]
- The Royal Society, UK [DH140054, DH160214]
- Swedish Research Council
- U.S. Department of Energy [DE-FG02-05ER41374, DE-SC-0010118, DE-SC-0012069]
- University of Groningen (RuG)
- Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt
- WCU Program of National Research Foundation of Korea [R32-2008-000-10155-0]
- CAS [U1532102, U1532257, U1532258, U1732263, U1832103, U1832207]
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Using an e(+)e(-) annihilation data sample corresponding to an integrated luminosity of 3.19 fb(-1) and collected at a center-of-mass energy root s = 4.178 GeV with the BESIII detector, we measure the absolute branching fractions B(D-s(+) -> (KSK+)-K-0) = (1.425 +/- 0.038(stat). +/- 0.031(syst).)% and B(D-s(+) -> (KLK+)-K-0) = (1.485 +/- 0.039(stat). +/- 0.046(syst).)%. The branching fraction of D-s(+) -> (KSK+)-K-0 is compatible with the world average and that of D-s(+) -> (KLK+)-K-0 is measured for the first time. We present the first measurement of the K-S(0)-K-L(0) asymmetry in the decays D-s(+) -> (KS,LK+)-K-0, and R((Ds+KS,LK+)-K-0) = B(D-s(+) -> (KSK+)-K-0)-B(D-s(+) -> (KLK+)-K-0)/B(D-s(+) -> (KSK+)-K-0)+B(D-s(+) -> (KLK+)-K-0) = (-2.1 +/- 1.9(stat). +/- 1.6(syst).)%. In addition, we measure the direct CP asymmetries A(CP) (D-s(+/-) -> (KSK +/-)-K-0). (0.6 +/- 2.8(stat). +/- 0.6(syst).)% and A(CP)(D-s(+/-) -> (KLK +/-)-K-0 ) = (-1.1 +/- 2.6(stat). +/- 0.6(syst))%.
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