Search for the b ---> d gamma process - INSPIRE

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Search for the b ---> d gamma process

Belle

Collaboration

May, 2005

6 pages

Part of Fundamental interactions. Proceedings, 20th Winter Institute, Lake Louise, Canada, February 20-26, 2005

Published in:

Phys.Rev.D 72 (2005) 011101

Contribution to:

- LLWI 2005

e-Print:

hep-ex/0505097 [hep-ex]

DOI:

10.1103/PhysRevD.72.011101

PDG:

{{\mathit B}^{+}}

\rightarrow

{{\mathit \rho}^{+}}{{\mathit \gamma}}

Report number:

KEK-PREPRINT-2005-29,
BELLE-PREPRINT-2005-22

Experiments:

KEK-BF-BELLE

View in:

ADS Abstract Service

reference search4 citations

Citations per year

Abstract:

We report the results of a search for the flavor-changing neutral current process b --> d gamma using a sample of 275 million B meson pairs accumulated by the Belle detector at KEKB. We find no significant signal for the exclusive decays B- --> rho- gamma, B0B --> rho0 gamma, or B0B --> omega gamma. Assuming an isospin relation between the three modes, we set an upper limit for the combined branching fraction Br(B --> (rho,omega) gamma) < 1.4 x 10-6 at the 90% confidence level. This limit can be used to constrain the ratio of CKM matrix elements |Vtd/Vts|.

11.30.Hv
14.40.Nd
14.65.Fy
13.40.Hq
talk: Lake Louise 2005/02/20
electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production
B: radiative decay

References(16)

Figures(0)

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