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Theoretical Introduction to B Decays and the Soft-Collinear Effective Theory | | Iain W. Stewart
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19 Aug 2003 | | Subject: | hep-ph | | Abstract: | In this talk I give an introduction to methods used to give a model independent description of QCD effects in B-decays. I discuss three useful expansions: mb/mW << 1 for the electroweak Hamiltonian, LambdaQCD/mb << 1 for Heavy Quark Effective theory, and LambdaQCD/Q << 1 for the Soft-Collinear Effective Theory where Q ~ mb is the large energy of light final state hadrons. I discuss predictions that can be made with each expansion. | | Source: | arXiv, hep-ph/0308185 | | Services: | Forum | Review | PDF | Favorites | |
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