Search for CP violation in D0 ---> K0(S) pi+ pi-

Collaboration
Nov, 2003
10 pages
Published in:
  • Phys.Rev.D 70 (2004) 091101
e-Print:
Report number:
  • CLNS-03-1848,
  • CLEO-03-13
Experiments:
  • CESR-CLEO-II

Citations per year

2003200820132018202302468101214
Abstract:
We report on a search for CP violation in the decay of D0 and D0B to Kshort pi+pi-. The data come from an integrated luminosity of 9.0 1/fb of e+e- collisions at sqrt(s) ~ 10 GeV recorded with the CLEO II.V detector. The resonance substructure of this decay is well described by ten quasi-two-body decay channels (K*-pi+, K*0(1430)-pi+, K*2(1430)-pi+, K*(1680)-pi+, Kshort rho, Kshort omega, Kshort f0(980), Kshort f2(1270), Kshort f0(1370), and the ``wrong sign'' K*+ pi-) plus a small non-resonant component. We observe no evidence for CP violation in the amplitudes and phases that describe the decay D0 to K_S^0 pi+pi-.
  • 13.25.Ft
  • 11.30.Er
  • electron positron: colliding beams
  • electron positron: annihilation
  • D0: electroproduction
  • D0: hadronic decay
  • anti-D0: hadronic decay
  • asymmetry: CP
  • Dalitz plot
  • decay: amplitude analysis