TY  - JOUR
AU  - BABAR Collaboration (Lees, J. P. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
PY  - 2012
DA  - 2012//
TI  - Precision Measurement of the B -> Xs gamma Photon Energy Spectrum, Branching Fraction, and Direct CP Asymmetry ACP(B -> Xs+d gamma)
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 191801
EP  - 8pp
VL  - 109
IS  - 19
PB  - Amer Physical Soc
AB  - The photon spectrum in the inclusive electromagnetic radiative decays of the B meson, B --> X-s gamma plus B --> X-d gamma, is studied using a data sample of (382.8 +/- 4.2) x 10(6)Y(4S) --> B (B) over bar decays collected by the BABAR experiment at SLAC. The spectrum is used to extract the branching fraction B(B --> X-s gamma) = (3.21 +/- 0.33) x 10(-4) for E-gamma > 1.8 GeV and the direct CP asymmetry A(CP)(B --> Xs+d gamma) = 0.057 +/- 0.063. The effects of detector resolution and Doppler smearing are unfolded to measure the photon energy spectrum in the B meson rest frame.
SN  - 0031-9007
UR  - http://arxiv.org/abs/arXiv:1207.2690
UR  - https://doi.org/10.1103/PhysRevLett.109.191801
DO  - 10.1103/PhysRevLett.109.191801
LA  - English
N1  - WOS:000310869600003
ID  - BABARCollaborationLees_etal2012
ER  -