Recent Results on Semileptonic Decays at Babar

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Some recent BABAR results on semileptonic decays are presented. They focus on the determination of the CKM matrix elements |V{sub ub}| and |V{sub cb}| in inclusive and exclusive b {yields} u{ell}v and b {yields} c{ell}v decays, and on form factors measurement in exclusive c {yields} s{ell}v decays. Semileptonic decays play a crucial role in the determination of the unitarity triangle parameters: decays of the b quark give access to the CKM matrix elements |V{sub ub}| and |V{sub cb}|, while charm decays provide a way to validate lattice QCD computations through form factors measurements. Such calculations provide theoretical inputs that are ... continued below

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4 pages

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Serrano, Justine & /Orsay, LAL November 7, 2011.

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Some recent BABAR results on semileptonic decays are presented. They focus on the determination of the CKM matrix elements |V{sub ub}| and |V{sub cb}| in inclusive and exclusive b {yields} u{ell}v and b {yields} c{ell}v decays, and on form factors measurement in exclusive c {yields} s{ell}v decays. Semileptonic decays play a crucial role in the determination of the unitarity triangle parameters: decays of the b quark give access to the CKM matrix elements |V{sub ub}| and |V{sub cb}|, while charm decays provide a way to validate lattice QCD computations through form factors measurements. Such calculations provide theoretical inputs that are used, especially, in the b sector. A lot of new results have been obtained by the BABAR collaboration during the last years, thanks to the large b{bar b} and c{bar c} production cross-sections and to the large recorded statistics. Some of these measurements are presented here.

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4 pages

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  • Journal Name: Nucl.Phys.Proc.Suppl.186:383-386,2009; Conference: To appear in the proceedings of 14th High-Energy Physics International Conference in Quantum Chromodynamics (QCD 08), Montpellier, France, 7-12 Jul 2008

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  • Report No.: SLAC-PUB-14693
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 1029175
  • Archival Resource Key: ark:/67531/metadc847206

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  • November 7, 2011

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  • May 19, 2016, 3:16 p.m.

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  • Dec. 1, 2016, 1:36 p.m.

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Serrano, Justine & /Orsay, LAL. Recent Results on Semileptonic Decays at Babar, article, November 7, 2011; United States. (digital.library.unt.edu/ark:/67531/metadc847206/: accessed December 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.