Scalar Mesons in $ϕ$ Radiative Decay: their implications for spectroscopy and for studies of CP-violation at $ϕ$ factories

Simple item page
dc.creatorClose, F. E.
dc.creatorIsgur, Nathan
dc.creatorKumano, S.
dc.date1993-01-21
dc.date.accessioned2026-07-07T10:34:56Z
dc.date.available2026-07-07T10:34:56Z
dc.descriptionExisting predictions for the branching ratio for $ϕ\rightarrow K\bar{K}γ$ {\it via} $ϕ\rightarrow Sγ$ (where $S$ denotes one of the scalar mesons $f_0$(975) and $a_0$(980)) vary by several orders of magnitude. Given the importance of these processes for both hadron spectroscopy and CP-violation studies at $ϕ$ factories (where $ϕ\rightarrow K^0 \bar K^0 γ$ poses a possible background problem), this state of affairs is very undesirable. We show that the variety of predictions is due in part to errors and in part to differences in modelling. The latter variation leads us to argue that the radiative decays of these scalar states are interesting in their own right and may offer unique insights into the nature of the scalar mesons. As a byproduct we find that the branching ratio for $ϕ\rightarrow K^0\bar{K}^0γ$ is $\lapproxeq 0(10^{-7})$ and will pose no significant background to proposed studies of CP-violation.
dc.descriptionLATEX file (20 pages); Tables 1,2 (LATEX) and Figs.1-6 (TOPDRAWER) can be obtained from authors upon request; preprint: RAL-92-026, CEBAF-TH-92-13, IU/NTC-92-16 (Nucl.Phys.B in press)
dc.identifierhttps://arxiv.org/abs/hep-ph/9301253
dc.identifierhttp://arxiv.org/abs/hep-ph/9301253
dc.identifierNucl.Phys.B389:513-533,1993
dc.identifierdoi:10.1016/0550-3213(93)90329-N
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179606
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleScalar Mesons in $ϕ$ Radiative Decay: their implications for spectroscopy and for studies of CP-violation at $ϕ$ factories
dc.typetext

Files

Collections

arXiv