B -> pi, B(s) -> K form factors and Vub determination

@article{citeulike:3385952, abstract = {We present a QCD light-cone sum rule (LCSR) estimation of the B -\> pi, B -\> K, and Bs -\> K form factors calculating gluon radiative corrections at next-to-leading order. The MS-bar b-quark mass is used, instead of the one-loop pole mass employed in the previous analyses. For B -\> K and Bs -\> K form factors the SU(3)-symmetry breaking corrections are included, both in the hard-scattering kernels and in the distribution amplitudes (DAs). By combining the predicted value for f^+\_{Bpi}(0) with the product |Vub f^+\_{Bpi}| extracted from the B -\> pi l nu measurement, we obtain the LCSR prediction for Vub CKM matrix element.}, archivePrefix = {arXiv}, author = {Melic, Blazenka}, citeulike-article-id = {3385952}, eprint = {0810.1144}, keywords = {bdecay, form\_factor, rare, sum\_rules}, month = {Oct}, posted-at = {2008-10-08 12:09:43}, priority = {3}, title = {B -\> pi, B(s) -\> K form factors and Vub determination}, url = {http://arxiv.org/abs/0810.1144}, year = {2008} }

TY - JOUR ID - citeulike:3385952 L3 - citeulike-article-id:3385952 N2 - We present a QCD light-cone sum rule (LCSR) estimation of the B -> pi, B -> K, and Bs -> K form factors calculating gluon radiative corrections at next-to-leading order. The MS-bar b-quark mass is used, instead of the one-loop pole mass employed in the previous analyses. For B -> K and Bs -> K form factors the SU(3)-symmetry breaking corrections are included, both in the hard-scattering kernels and in the distribution amplitudes (DAs). By combining the predicted value for f^+_{Bpi}(0) with the product |Vub f^+_{Bpi}| extracted from the B -> pi l nu measurement, we obtain the LCSR prediction for Vub CKM matrix element. TI - B -> pi, B(s) -> K form factors and Vub determination KW - bdecay KW - form_factor KW - rare KW - sum_rules AU - Melic, Blazenka PY - 2008/Oct/07/ UR - http://arxiv.org/abs/0810.1144 ER -