Particle X in rare decay could belong to a new physics model

A particle that may mediate the rare decay of a Sigma-plus hyperon appears to have close affiliations with a light Higgs boson found in one supersymmetric model—an interpretation suggesting unambiguous evidence for physics beyond the standard model (SM), scientists say.

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<p><a href="http://www.physorg.com/news92488817.html">Particle X in rare decay could belong to a new physics model</a></p> <p>A particle that may mediate the rare decay of a Sigma-plus hyperon appears to have close affiliations with a light Higgs boson found in one supersymmetric model—an interpretation suggesting unambiguous evidence for physics beyond the standard model (SM), scientists say.</p>