CKM Parameters and Rare B Decays

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Measurements of the angles and sides of the unitarity triangle and of the rates of rare B meson decays are crucial for the precise determination of Standard Model parameters and are sensitive to the presence of new physics particles in the loop diagrams. In this paper the recent measurements performed in this area by BABAR and Belle will be presented. The direct measurement of the angle {alpha} is for the first time as precise as the indirect determination. The precision of the |V{sub ub}| determination has improved significantly with respect to previous measurement. New limits on B {yields} {tau}{nu} decays ... continued below

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14 pages

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Forti, Francesco & /INFN, Pisa December 14, 2005.

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Description

Measurements of the angles and sides of the unitarity triangle and of the rates of rare B meson decays are crucial for the precise determination of Standard Model parameters and are sensitive to the presence of new physics particles in the loop diagrams. In this paper the recent measurements performed in this area by BABAR and Belle will be presented. The direct measurement of the angle {alpha} is for the first time as precise as the indirect determination. The precision of the |V{sub ub}| determination has improved significantly with respect to previous measurement. New limits on B {yields} {tau}{nu} decays are presented, as well as updated measurements on b {yields} s radiative transitions and a new observation of b {yields} d{gamma} transition made by Belle.

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14 pages

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  • Talk given at 22nd International Symposium on Lepton-Photon Interactions at High Energy (LP 2005), Uppsala, Sweden, 30 Jun - 5 Jul 2005

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  • Report No.: SLAC-PUB-11543
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 877496
  • Archival Resource Key: ark:/67531/metadc879970

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  • December 14, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 22, 2016, 10:27 p.m.

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Forti, Francesco & /INFN, Pisa. CKM Parameters and Rare B Decays, article, December 14, 2005; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc879970/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.