Semi-inclusive radiative decays of
Open Access
- 21 September 2005
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 72 (5)
- https://doi.org/10.1103/physrevd.72.054014
Abstract
We discuss in detail the photon spectrum of radiative Upsilon 1S decays taking into account a number of results that have recently appeared in the literature. In particular, we show how to consistently combine expressions which are valid in the upper end-point region, where NRQCD factorization breaks down, with those of the central region, where NRQCD factorization holds. An excellent description of data is achieved, but theoretical errors are largeKeywords
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