Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-30913
Beneke, M; Vernazza, L (2009). B→χcJK decays revisited. Nuclear Physics. Section B, 811(1-2):155-181.
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We demonstrate that exclusive B decays to P-wave charmonium factorize in the non-relativistic limit provided that colour-octet contributions are taken into account, and estimate the branching fractions. Although there are very large uncertainties, we find reasonable parameter choices, where the main features of the data – large corrections to (naive) factorization and suppression of the χc2 and hc final states – are reproduced though the suppression of χc2 is not as strong as seen in the data. Our results also provide an example, where an endpoint divergence in hard spectator-scattering factorizes and is absorbed into colour-octet operator matrix elements.
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|Other titles:||B -> chi_cJ K decays revisited|
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Institute for Computational Science|
|Dewey Decimal Classification:||530 Physics|
|Deposited On:||22 Feb 2010 12:06|
|Last Modified:||05 Apr 2016 13:56|
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