Radiative Omega(-)->Xi(-)gamma decay and physics beyond the standard model
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World Scientific Publ Co Pte Ltd
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Abstract
We investigate the impact of new physics beyond the Standard Model to the s --> d gamma process, which is responsible for the short-distance contribution to the radiative decay Omega-( )--> Xi(-) gamma. 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 --> s gamma transition and the upper limit on D-0-(D) over bar(0) mixing are taken into account, we find no significant contributions of new physics to the s --> d gamma process.
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English
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International Workshop on Hadron Physics 96. Singapore: World Scientific Publ Co Pte Ltd, p. 406-410, 1997.
