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Published on: January 28, 2019
Determining the sign of the b-->sgamma amplitude
Paolo Gambino1, Ulrich Haisch, Mikołaj Misiak
1INFN Torino and Dipartimento di Fisica Teorica, Università di Torino, 10125 Torino, Italy.
Abstract:
The latest Belle and BABAR measurements of the inclusive B -->Xsl+l- branching ratio have smaller errors and lower central values than the previous ones. We point out that these results indicate that the sign of the b-->sgamma amplitude is the same as in the standard model. This underscores the importance of B -->Xsl+l- in searches for new physics, and may be relevant for neutralino-dark matter analyses within the minimal supersymmetric standard model.
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