Journal
PHYSICAL REVIEW D
Volume 86, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.86.112001
Keywords
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Funding
- National Science Foundation
- U.S. Department of Energy
- Natural Sciences and Engineering Research Council of Canada
- United Kingdom Science and Technology Facilities Council
- STFC [ST/H001026/2, ST/J005614/1, PP/E002722/1, ST/G502412/1, ST/I002839/1, PP/F000650/1, ST/J004820/1, ST/K000616/1, ST/H001026/1, ST/L001225/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J005614/1, ST/G502412/1, ST/I002839/1, ST/K000616/1, ST/H001026/1, ST/H001026/2, ST/L001225/1, PP/F000650/1, PP/E002722/1, ST/K001256/1, ST/J004820/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [0970024] Funding Source: National Science Foundation
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We analyze a sample of 3 X 10(6) quantum-correlated D-0(D) over bar (0) pairs from 818 pb(-1) of e(+)e(-) collision data collected with the CLEO-c detector at E-cm = 3.77 GeV, to give an updated measurement of cos delta and a first determination of sin delta, where delta is the relative strong phase between doubly Cabibbo-suppressed D-0 -> K+pi(-) and Cabibbo-favored (D) over bar (0) -> K+pi(-) decay amplitudes. With no inputs from other experiments, we find cos delta = 0.81(-0.18-0.005)(+0.22+0.007), sin delta = -0.01 +/- 0.41 +/- 0.04, and vertical bar delta vertical bar = (10(-53-0)(+28+13))degrees. By including external measurements of mixing parameters, we find alternative values of cos delta = 1.15(-0.17-0.08)(+0.19+0.00), sin delta = 0.56(-0.31-0.20)(+0.32+0.21), and delta = (18(-17)(+11))degrees. Our results can be used to improve the world average uncertainty on the mixing parameter y by approximately 10%. DOI: 10.1103/PhysRevD.86.112001
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