Measurement of y(CP) in D0 meson decays to the K0(S) K+ K- final state

Collaboration
May, 2009
18 pages
Published in:
  • Phys.Rev.D 80 (2009) 052006
e-Print:
Report number:
  • KEK-2009-4,
  • BELLE-2009-10,
  • KEK-PREPRINT-2009-4,
  • BELLE-PREPRINT-2009-10
Experiments:

Citations per year

2009201320172021202402468
Abstract: (arXiv)
We present a measurement of the D0D^0-D0\overline{D}{}^0 mixing parameter yCPy_{CP} using a flavor-untagged sample of D0KS0K+KD^0\to K_S^0K^+K^- decays. The measurement is based on a 673 fb1^{-1} data sample recorded with the Belle detector at the KEKB asymmetric-energy e+ee^+ e^- collider. Using a method based on measuring the mean decay time for different K+KK^+K^- invariant mass intervals, we find yCP=(+0.11±0.61(stat.)±0.52(syst.))y_{CP} = (+0.11\pm 0.61 ({\rm stat.})\pm 0.52 (\rm syst.))%.
Note:
  • 18 pages, 6 figures, 4 tables
  • 13.25.Ft
  • 12.15.Ff
  • electron positron: annihilation
  • D0: hadronic decay
  • decay: time
  • D0 anti-D0: mixing
  • BELLE
  • KEK-B
  • K+ K-: mass
  • D0 --> K0(S) K+ K-