Study of the semileptonic decays B->pi, D->pi and D->K
Study of the semileptonic decays B->pi, D->pi and D->K
The semileptonic decay B->pi is studied starting from a simple quark model that takes into account the effect of the B* resonance. A novel, multiply subtracted, Omnes dispersion relation has been implemented to extend the predictions of the quark model to all q2 values accesible in the physical decay. By comparison to the experimental data, we extract |Vub|=0.0034 ± 0.0003(exp.) ± 0.0007(theory). As a further test of the model, we have also studied D->pi and D->K decays for which we get good agreement with experiment.
725-727
Albertus, C.
2578dbb1-80bd-4f6d-a955-1e80578d79da
Flynn, J. M.
d8e90963-ba56-415c-bbd4-496b7d91d343
Hernandez, E.
64d6e442-7c1b-4c85-9c57-60f40a975b95
Nieves, J.
4d72ebe2-1ea0-4579-bd81-4c682ab01a7f
Verde-Velasco, J.M.
302e3471-c79c-4d9d-a5a1-7d98ddca5c21
2007
Albertus, C.
2578dbb1-80bd-4f6d-a955-1e80578d79da
Flynn, J. M.
d8e90963-ba56-415c-bbd4-496b7d91d343
Hernandez, E.
64d6e442-7c1b-4c85-9c57-60f40a975b95
Nieves, J.
4d72ebe2-1ea0-4579-bd81-4c682ab01a7f
Verde-Velasco, J.M.
302e3471-c79c-4d9d-a5a1-7d98ddca5c21
Albertus, C., Flynn, J. M., Hernandez, E., Nieves, J. and Verde-Velasco, J.M.
(2007)
Study of the semileptonic decays B->pi, D->pi and D->K.
The European Physical Journal A, 31, .
(doi:10.1140/epja/i2006-10247-9).
Abstract
The semileptonic decay B->pi is studied starting from a simple quark model that takes into account the effect of the B* resonance. A novel, multiply subtracted, Omnes dispersion relation has been implemented to extend the predictions of the quark model to all q2 values accesible in the physical decay. By comparison to the experimental data, we extract |Vub|=0.0034 ± 0.0003(exp.) ± 0.0007(theory). As a further test of the model, we have also studied D->pi and D->K decays for which we get good agreement with experiment.
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Published date: 2007
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Local EPrints ID: 56957
URI: http://eprints.soton.ac.uk/id/eprint/56957
ISSN: 1434-6001
PURE UUID: 7b919700-4f02-40b1-a3e5-527a75f0943e
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Date deposited: 13 Aug 2008
Last modified: 16 Mar 2024 02:44
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Contributors
Author:
C. Albertus
Author:
E. Hernandez
Author:
J. Nieves
Author:
J.M. Verde-Velasco
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