The Puzzle of the Bottom Quark Production Cross Section

Details The Puzzle of the Bottom Quark Production Cross Section The Puzzle of the Bottom Quark Production Cross Section

2002-01-24

arxiv.org/abs/hep-ph/0201229v1

Int.J.Mod.Phys. A18 (2003) 1263-1272

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, latex, 1 figure, uses ws-ijmpa.cls, enclosed. To be published in International Journal of Modern Physics A. Proceedi

Scientific paper

10.1142/S0217751X03014599

The production rate of bottom quarks at hadron colliders exceeds the expectations of next-to-leading order perturbative quantum chromodynamics. An additional contribution from pair-production of light gluinos, of mass 12 to 16 GeV, with two-body decays into bottom quarks and light bottom squarks, yields a differential cross section for bottom quarks in better agreement with data. The masses of the gluino and bottom squark are restricted further by the ratio of like-sign to opposite-sign leptons at hadron colliders. Restrictions on this scenario from other data are summarized, and predictions are made for other processes such as Upsilon decay into a pair of bottom squarks.

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