QCD factorization for exclusive non-leptonic B-meson decays: General arguments and the case of heavy-light final states

By Martin Beneke, G. Buchalla, M. Neubert, C. Sachrajda. 2000

850 citations recorded by the source corpus.

We provide a rigorous basis for factorization for a large class of non-leptonic twobody B-meson decays in the heavy-quark limit. The resulting factorization formula incorporates elements of the naive factorization approach and the hard-scattering approach, but allows us to compute systematically radiative (“non-factorizable”) corrections to naive factorization for decays such as B → Dπ and B → ππ. We first discuss the factorization formula from a general point of view. We then consider factorization for decays into heavy-light final states (such as B → Dπ) in more detail, including a proof of the factorization formula at two-loop order. Explicit results for the leading QCD corrections to factorization are presented and compared to existing measurements of branching fractions and final-state interaction phases.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/f633cf809ff38fcc67f09e9f4c8c01f3da0be2c7

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In Nuclear and High Energy Physics

Citations in the corpus

Event generation with SHERPA 1.1 (2008, methodology): “In fact, for a certain class of heavy-to-light transitions, this factorisation ansatz has been proven to yield results correct up to higher orders [ 121 ], and it will be used for these and many other decays in SHERPA.”
Implications of LHCb measurements and future prospects - eScholarship (2013, neutral): “In the low q2 region, these decays can be described by QCD-improved factorisation (QCDF) [46, 47] and the field theory formulation of soft-collinear effective theory (SCET) [48, 49].”