Rosenfeld, R. [UNESP]Barreiro, L. A.Escobar, C. O.Nielsen, M.2014-05-272014-05-271996-09-01Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 54, n. 5, p. 3645-3648, 1996.0556-2821http://hdl.handle.net/11449/130687We investigate the impact of new physics beyond the standard model to the s → dγ process, which is responsible for the short-distance contribution to the radiative decay Ω-Ξ-γ. We study three representative extensions of the standard model: namely, a one-family technicolor model, a two-Higgs-doublet model, and a model containing scalar leptoquarks. When constraints arising from the observed b→sγ transition and the upper limit on D0-D̄0 mixing are taken into account, we find no significant contributions of new physics to the s→dy process.3645-3648engArtigo10.1103/PhysRevD.54.3645WOS:A1996VF92800062Acesso restrito2-s2.0-3042946259