Extracting |Vub| From Omnès dispersion relations and lattice QCD
Extracting |Vub| From Omnès dispersion relations and lattice QCD
Dispersion approaches offer a way to use directly calculated/measured form-factor values from exclusive semileptonic B → π decays to constrain the overall q2-shape of the form-factor(s). This can make the determination of |Vub| from exclusive decays competitive with that from inclusive decays. Here we consider the use of Omnès dispersion relations for this purpose.
202-[5pp]
Flynn, Jonathan
d8e90963-ba56-415c-bbd4-496b7d91d343
Nieves, Juan
7d5cbd0b-f25d-44f0-be50-fdecb2e54bfe
July 2006
Flynn, Jonathan
d8e90963-ba56-415c-bbd4-496b7d91d343
Nieves, Juan
7d5cbd0b-f25d-44f0-be50-fdecb2e54bfe
Flynn, Jonathan and Nieves, Juan
(2006)
Extracting |Vub| From Omnès dispersion relations and lattice QCD.
In Proceedings of Science (PoS) LAT2005.
Proceedings of Science.
.
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Abstract
Dispersion approaches offer a way to use directly calculated/measured form-factor values from exclusive semileptonic B → π decays to constrain the overall q2-shape of the form-factor(s). This can make the determination of |Vub| from exclusive decays competitive with that from inclusive decays. Here we consider the use of Omnès dispersion relations for this purpose.
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Published date: July 2006
Venue - Dates:
XXIIIrd International Symposium on Lattice Field Theory: Lattice 2005, Trinity College, Dublin, Ireland, 2005-07-25 - 2005-07-30
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Local EPrints ID: 57240
URI: http://eprints.soton.ac.uk/id/eprint/57240
PURE UUID: 81d4d1be-99e0-4ca1-bb0c-b031f8cee4aa
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Date deposited: 14 Aug 2008
Last modified: 05 Mar 2024 02:34
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Author:
Juan Nieves
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