Partners of Z(4430) and Productions in B Decays

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dc.creatorLi, Ying
dc.creatorLü, Cai-Dian
dc.creatorWang, Wei
dc.date2007-11-04
dc.date2008-03-07
dc.date.accessioned2026-07-07T11:12:53Z
dc.date.available2026-07-07T11:12:53Z
dc.descriptionRecently, Belle Collaboration has reported a resonant state produced in $B\to K πψ'$, which is called Z(4430). This state is charged, so it can not be interpreted as an ordinary charmonium state. In this paper, we analyze the octet to which this particle belongs and predict the masses of mesons in this octet. Utilizing flavor SU(3) symmetry, we study production rates in several kinds of B decays. The $\bar B^0\to Z_s^-π^+\to K^-ψ'π^+$ and $B^-\to \bar Z_s^0 π^-\to K_Sψ'π^-$ decay channels, favored by Cabibbo-Kobayashi-Maskawa (CKM) matrix elements, can have branching ratios of ${\cal O}(10^{-5})$. This large branching ratio could be observed at the running $B$ factories to detect $Z_s$ particles containing a strange quark. We also predict large branching ratios of the $Z$ and $Z_c$ ($\bar cc\bar c D, D=u,d,s$) particle production rates in non-leptonic $B_c$ decays and radiative B decays. Measurements of these decays at the ongoing $B$ factories and the forthcoming Large Hadron Collider (LHC)-b experiments are helpful to clarify the mysterious $Z$ particles.
dc.description12 pages, 5 figures. Published version
dc.identifierhttps://arxiv.org/abs/0711.0497
dc.identifierhttp://arxiv.org/abs/0711.0497
dc.identifierPhys.Rev.D77:054001,2008
dc.identifierdoi:10.1103/PhysRevD.77.054001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191532
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titlePartners of Z(4430) and Productions in B Decays
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