QCD sum rules on the light cone and B→π form factors
Weinzierl, Stefan; Yakovlev, Oleg
Weinzierl, S; Yakovlev, O (2000). "QCD sum rules on the light cone and B→π form factors." Journal of Physics G: Nuclear and Particle Physics. 26(5): 737-740. <http://hdl.handle.net/2027.42/49019>
AbstractThe semileptonic decay B→π_lν is one of the most important reactions for the determination of the CKM matrix element |Vub|. However, in order to extract |Vub| from data one needs an accurate theoretical calculation of the hadronic matrix element describing the B to π transition. QCD sum rules, based on operator product expansion on the light cone, provide a reliable approach to achieve this aim. QCD corrections and higher twist contributions can be taken systematically into account.
IOP Publishing Ltd
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