Phenomenological discussion of $B\to P V$ decays in QCD improved factorization approach

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dc.creatorAleksan, R.
dc.creatorGiraud, P. F.
dc.creatorMorenas, V.
dc.creatorPene, O.
dc.creatorSafir, A. S.
dc.date2003-04-22
dc.date.accessioned2026-07-07T03:49:29Z
dc.date.available2026-07-07T03:49:29Z
dc.descriptionTrying a global fit of the experimental branching ratios and CP-asymmetries of the charmless $B\to PV$ decays according to QCD factorization, we find it impossible to reach a satisfactory agreement, the confidence level (CL) of the best fit is smaller than .1 %. This failure reflects the difficulty to accommodate several large experimental branching ratios of the strange channels. Furthermore, experiment was not able to exclude a large direct CP asymmetry in $\bar {B}^0\toρ^+ π^-$, which is predicted very small by QCD factorization. Proposing a fit with QCD factorization complemented by a charming-penguin inspired model we reach a best fit which is not excluded by experiment (CL of about 8 %) but is not fully convincing. These negative results must be tempered by the remark that some of the experimental data used are recent and might still evolve significantly.
dc.description8 pages, 2 figures (requires epsfig, psfrag),talk presented at the XXXVIIIth Rencontres de Moriond: Electroweak Interactions and Unified Theories,Les Arcs, France, March 15-22, 2003. To be published in the Proceedings
dc.identifierhttps://arxiv.org/abs/hep-ph/0304205
dc.identifierhttp://arxiv.org/abs/hep-ph/0304205
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/42419
dc.subjectHigh Energy Physics - Phenomenology
dc.titlePhenomenological discussion of $B\to P V$ decays in QCD improved factorization approach
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