Time-dependent CP Asymmetries in B0KS0rho0γB^0 \to K^0_S rho^0 \gamma Decays

Collaboration
Jun, 2008
6 pages
Published in:
  • Phys.Rev.Lett. 101 (2008) 251601
e-Print:
Report number:
  • BELLE-2008-17,
  • KEK-2008-12
Experiments:

Citations per year

200820122016202020220246810
Abstract: (arXiv)
We report the first measurement of CP-violation parameters in B^0 -> K_S^0\rho^0\gamma decays based on 657 million B\bar B pairs collected with the Belle detector at the KEKB asymmetric-energy collider. We measure the time-dependent CP violating parameter S_{K_S^0\rho^0\gamma}= 0.11 +/- 0.33(stat.)^{+0.05}_{-0.09}(syst.). We also obtain the effective direct CP violating parameter A_eff=0.05 +/- 0.18(stat.) +/- 0.06(syst.) for m_{K_S\pi^+\pi^-}<1.8 GeV/c^2 and 0.6 GeV/c^2
  • 13.20.He
  • 11.30.Er
  • electron positron: colliding beams
  • electron positron: annihilation
  • Upsilon(10570): electroproduction
  • B: pair production
  • B0: radiative decay
  • CP: violation
  • asymmetry: time dependence
  • BELLE