Squark Pair Production in the MSSM with Explicit CP Violation

Abstract

We analyze effects of the CP-odd soft phases in the MSSM on the pair-productions of colored superpartners in pp collisions at the LHC energies. We find that, among all pair-production processes, those of the scalar quarks in the first and second generations are particularly sensitive to the CP-odd phases, more precisely, to the phases of the gluinos and neutralinos. We compute pair-production cross sections, classify various production modes according to their dependencies on the gluino and neutralino phases, perform a detailed numerical analysis to determine individual as well as total cross sections, and give a detailed discussion of EDM bounds. We find that pair-productions of first and second generation squarks serve as a viable probe of the CP violation sources in the gaugino sector of the theory even if experiments cannot determine chirality, flavor and electric charge of the squarks produced.

36 pp, 14 ps figures, 1 table, Corrected the cross sections; mild changes in numerical results; conclusion unchanged

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• Threshold resummation for gaugino pair production at hadron colliders
• Joint Resummation for Gaugino Pair Production at Hadron Colliders
• Electroweak Contributions to Squark Pair Production at the LHC
• Probing SUSY CP Violation in Two-Body Stop Decays at the LHC
• Top-squark pair production at the LHC: a complete analysis at next-to-leading order
• Search for Gauge Extensions of the MSSM at the LHC
• Improved squark and gluino mass limits from searches for supersymmetry at hadron colliders