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Search for CP Violation in the Decays D0 to K- K+and D0 to pi- pi+

Journal Article · · Physical Review Letters
OSTI ID:916986
We measure CP-violating asymmetries of neutral charmed mesons in the modes D{sup 0} {yields} K{sup -}K{sup +} and D{sup 0} {yields} {pi}{sup -}{pi}{sup +} with the highest precision to date by using D{sup 0} {yields} K{sup -}{pi}{sup +} decays to correct detector asymmetries. An analysis of 385.8 fb{sup -}1 of data collected with the BaBar detector yields values of a{sup KK}{sub CP} = (0.00 {+-} 0.34 (stat.) {+-} 0.13 (syst.))% and a{sup {pi}{pi}}{sub CP} = (-0.24 {+-} 0.52 (stat.) {+-} 0.22 (syst.))%, which agree with Standard Model predictions.
Research Organization:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76SF00515
OSTI ID:
916986
Report Number(s):
SLAC-PUB-12756; arXiv:0709.2715
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters
Country of Publication:
United States
Language:
English

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