Chiral corrections to the scalar form factor in B_q to D_q transitions

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dc.creatorEeg, Jan O.
dc.creatorFajfer, Svjetlana
dc.creatorKamenik, Jernej F.
dc.date2008-07-01
dc.date.accessioned2026-07-07T11:52:12Z
dc.date.available2026-07-07T11:52:12Z
dc.descriptionWe consider chiral loop corrections to the scalar form factor in B_q to D_q l nu decays. First we consider chiral corrections to the 1/m_Q suppressed operators and then we propose the procedure for the extraction of the relevant form factor using lattice QCD results. In the case of B_s to D_s l nu decay we find that effects of kinematics and chiral corrections tend to cancel for the scalar form factor contributions. In particular the 1/m_Q suppression of chiral corrections is compensated by the SU(3) flavor symmetry breaking corrections which can be as large as 30%. The calculated corrections are relevant for the precise determination of possible new physics effects in B_q to D_q l nu decays.
dc.description5 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0807.0202
dc.identifierhttp://arxiv.org/abs/0807.0202
dc.identifierPhys.Rev.D78:074008,2008
dc.identifierdoi:10.1103/PhysRevD.78.074008
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204150
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Lattice
dc.titleChiral corrections to the scalar form factor in B_q to D_q transitions
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