%0 Generic %1 Bernard2011Dispersive %A Bernard, Véronique %A Boito, Diogo R. %A Passemar, Emilie %D 2011 %K kaon %T Dispersive representation of the scalar and vector Kpi form factors for tau &\#45;&\#45;> K pi nu\_tau and K\_l3 decays %U http://arxiv.org/abs/1103.4855 %X Recently, the tau --> K pi nu\_tau decay spectrum has been measured by the Belle and BaBar collaborations. In this work, we present an analysis of such decays introducing a dispersive parametrization for the vector and scalar Kpi form factors. This allows for precise tests of the Standard Model. For instance, the determination of f\_+(0)|V\_us| from these decays is discussed. A comparison and a combination of these results with the analyses of the K\_l3 decays is also considered.

@misc{Bernard2011Dispersive, abstract = {Recently, the tau --\> K pi nu\_tau decay spectrum has been measured by the Belle and BaBar collaborations. In this work, we present an analysis of such decays introducing a dispersive parametrization for the vector and scalar Kpi form factors. This allows for precise tests of the Standard Model. For instance, the determination of f\_+(0)|V\_{us}| from these decays is discussed. A comparison and a combination of these results with the analyses of the K\_{l3} decays is also considered.}, added-at = {2019-02-23T22:09:48.000+0100}, archiveprefix = {arXiv}, author = {Bernard, V\'{e}ronique and Boito, Diogo R. and Passemar, Emilie}, biburl = {https://www.bibsonomy.org/bibtex/223d74b493b094d7785f73c014fa565ee/cmcneile}, citeulike-article-id = {11122761}, citeulike-linkout-0 = {http://arxiv.org/abs/1103.4855}, citeulike-linkout-1 = {http://arxiv.org/pdf/1103.4855}, day = 24, eprint = {1103.4855}, interhash = {e820224fe51aaa214039d1d66e07505d}, intrahash = {23d74b493b094d7785f73c014fa565ee}, keywords = {kaon}, month = mar, posted-at = {2012-08-23 13:21:00}, priority = {2}, timestamp = {2019-02-23T22:15:27.000+0100}, title = {Dispersive representation of the scalar and vector Kpi form factors for tau \&\#45;\&\#45;\> K pi nu\_tau and K\_{l3} decays}, url = {http://arxiv.org/abs/1103.4855}, year = 2011 }