Supersymmetry Explanation for the Puzzling Bottom Quark Production Cross Section
نویسنده
چکیده
It has been known for a long time that the cross section for bottom-quark b production at hadron collider energies exceeds theoretical expectations. An additional contribution from pairproduction of light gluinos g̃, of mass 12 to 16 GeV, with two-body decays into bottom quarks and light bottom squarks b̃, helps to obtain a b production rate in better agreement with data. The masses of the g̃ and b̃ are restricted further by the ratio of like-sign to opposite-sign leptons at hadron colliders. Constraints on this scenario from other data are examined, and predictions are made for various processes such as Upsilon decay into b̃′s.
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