English

b-> s gamma and b-> d gamma (B factories)

High Energy Physics - Experiment 2011-02-10 v1

Abstract

The photon spectrum in B->X_{s,d} \gamma decay, where X_s(d) is any strange (non-strange) hadronic state, is studied using data samples of e+eΥ(4S)BBbardecayscollectedbytheBabarandBelleexperiments.HereIpresentthelatestmeasurementsofthebranchingfractionandspectralmomentsfromB>Xsgammae^+e^- \rightarrow \Upsilon(4S) \to B B-bar decays collected by the Babar and Belle experiments. Here I present the latest measurements of the branching fraction and spectral mo ments from B -> X_s gamma decays by Belle and the direct CP asymmetry of B->X_{s+d} gamma measured at Babar. The determination of |V_{td}/V_{ts}|^2$ i also presented.

Keywords

Cite

@article{arxiv.1102.1925,
  title  = {b-> s gamma and b-> d gamma (B factories)},
  author = {Wenfeng Wang},
  journal= {arXiv preprint arXiv:1102.1925},
  year   = {2011}
}

Comments

Proceeding of CKM2010, the 6th international Workshop on the CKM Unitarity Triangle, University of Warwick, UK, 6-10 September 2010

R2 v1 2026-06-21T17:24:01.089Z