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Bounds on the Gluino Mass from a Global Parton Density Analysis

Edmond L. Berger
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Abstract

Parton distribution functions for protons are devised in which a light gluino is included along with standard model quark, antiquark, and gluon constituents. A global analysis of a large set of hadronic scattering data provides empirical constraints on the allowed range of the gluino mass as a function of the value of the strong coupling strength alpha_s(M_Z). We find that the gluino mass m_{\widetilde{g}} > 12 GeV for the standard model world-average value alpha_{s}(M_{Z})=0.118. Gluino masses as small as 10 GeV are admissible provided that alpha_s(M_Z) > 0.12, about one standard deviation above the world-average value. Current hadron scattering data are insensitive to the presence of gluinos heavier than about 100 - 150 GeV.

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Edmond L. Berger. 2004-08-19. Bounds on the Gluino Mass from a Global Parton Density Analysis. https://arxiv.org/abs/hep-ph/0408217

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