Final-state Polarization in Bs Decays

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dc.creatorDatta, Alakabha
dc.creatorLondon, David
dc.creatorMatias, Joaquim
dc.creatorNagashima, Makiko
dc.creatorSzynkman, Alejandro
dc.date2008-02-06
dc.date2008-10-31
dc.date.accessioned2026-07-07T12:55:02Z
dc.date.available2026-07-07T12:55:02Z
dc.descriptionCertain Bs --> V_1V_2 decays (V_i is a vector meson) can be related by flavor SU(3) symmetry to corresponding Bd --> V_3V_4 decays. In this paper, we show that the final-state polarization can be predicted in the Bs decay, assuming polarization measurements of the Bd decay. This can be done within the scenario of penguin annihilation (PA), which has been suggested as an explanation of the unexpectedly large transverse polarization in B-->phi K^*. PA is used to estimate the breaking of flavor SU(3) symmetry in pairs of decays. Two of these for which PA makes a reasonably precise prediction of the size of SU(3) breaking are (Bs --> phiphi, Bd --> phi K^{0*}) and (Bs --> phi {\bar K}^{0*}, Bd --> {\bar K}^{0*} K^{0*}). The polarization measurement in the Bd decay can be used to predict the transverse polarization in the Bs decay, and will allow a testing of PA.
dc.description6 pages
dc.identifierhttps://arxiv.org/abs/0802.0897
dc.identifierhttp://arxiv.org/abs/0802.0897
dc.identifierEur.Phys.J.C60:279-284,2009
dc.identifierdoi:10.1140/epjc/s10052-009-0883-8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224142
dc.subjectHigh Energy Physics - Phenomenology
dc.titleFinal-state Polarization in Bs Decays
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