Measurement of the time-integrated CP asymmetry in D-0 -> (KSKS0)-K-0 decays

The time-integrated CP asymmetry in the decay D-0 -> (KSKS0)-K-0 is measured using 3 fb(-1) of proton-proton collision data collected by the LHCb experiment at centreof- mass energies of 7 and 8TeV. The flavour of the D-0 meson is determined by use of the decay D*(+) -> D-0 pi(+) and its charge conjugate mode. The result is A(CP) = -0.029 +/- 0.052 +/- 0.022, where the first uncertainty is statistical and the second systematic. The result is consistent with Standard Model expectations and improves the uncertainty with respect to the only previous measurement of this quantity by more than a factor of three.


Published in:
Journal of High Energy Physics, 10, 055
Year:
2015
Publisher:
New York, Springer
Keywords:
Laboratories:




 Record created 2016-02-16, last modified 2018-09-13


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