6533b82efe1ef96bd1293414
RESEARCH PRODUCT
Study of the semileptonic decays B→π, D→π and D→K
J. NievesJonathan M. FlynnE. HernándezC. AlbertusJ. M. Verde-velascosubject
Semileptonic decayPhysicsHigh Energy Physics - PhenomenologyNuclear and High Energy PhysicsParticle physicsDispersion relationQuark modelPiFísicaResonanceHigh Energy Physics::Experimentdescription
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 q^2 values accesible in the physical decay. By comparison to the experimental data, we extract |V_ub|=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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-10-05 | The European Physical Journal A |