1995/11/29 by R. Rosenfeld, L. A. Barreiro, Luiz Antônio Barreiro +3
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.54.3645
published as Phys.Rev. D54 (1996) 3645-3648 · 9 pages, RevTex, no figures
arxiv created 1995/11/29 · openalex publication_date 1996/09/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We investigate the impact of new physics beyond the standard model to the s\ensuremath→d\ensuremathγ process, which is responsible for the short-distance contribution to the radiative decay \ensuremathΩ^\ensuremath-\ensuremath→\ensuremathΞ^\ensuremath-\ensuremathγ. 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\ensuremath→s\ensuremathγ transition and the upper limit on D0\ensuremath-D0 mixing are taken into account, we find no significant contributions of new physics to the s\ensuremath→d\ensuremathγ process.