id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_kfb7o4lucjchdehnkstcvgcgwi	C.T. Sachrajda	Exclusive decays of beauty hadrons	1996	19	.pdf	application/pdf	6227	809	77	In this talk I review the status of theoretical calculations of the amplitudes for exclusive leptonic and semileptonic decays, in the latter case with special emphasis 3 The rapporteur at the 1995 Lattice conference summarized the results for the decay constants as fD ≃ fB ≃ 200 GeV ± 20% [13]. fB: For sufficiently large masses of the heavy quark, the decay constant of a 2. In both cases it is convenient to use spacetime symmetries to express the matrix elements in terms of invariant form factors The theoretical difficulty in making predictions for the form factors lies in calculating these corrections with sufficient precision. Values of ρ2 obtained using QCD sum rules and lattice simulations are presented Figure 3: Fit of the UKQCD lattice results for |Vcb|F(ω) [37] to the experimental the fact that the lattice results are obtained at large values of q2 is not a serious	./cache/work_kfb7o4lucjchdehnkstcvgcgwi.pdf	./txt/work_kfb7o4lucjchdehnkstcvgcgwi.txt