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SUSY effects in Rb: Revisited under current experimental constraints

Su, Wei; Yang, Jin Min

Physics letters B. Volume 757:Number C (2016, June 10th); pp 136-141

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  • Title:
    SUSY effects in Rb: Revisited under current experimental constraints
  • Author: Su, Wei;
    Yang, Jin Min
  • Found In: Physics letters B. Volume 757:Number C (2016, June 10th); pp 136-141
  • Journal Title: Physics letters B
  • Subjects: Supersymmetry--Rb; Dewey: 530
  • Rights: Licensed
  • Abstract: Abstract In this note we revisit the SUSY effects inRbunder current experimental constraints including the LHC Higgs data, the B -physics measurements, the dark matter relic density and direct detection limits, as well as the precision electroweak data. We first perform a scan to figure out the currently allowed parameter space and then display the SUSY effects inRb. We find that although the SUSY parameter space has been severely restrained by current experimental data, both the general MSSM and the natural-SUSY scenario can still alterRbwith a magnitude sizable enough to be observed at future Z -factories (ILC, CEPC, FCC-ee, Super Z -factory) which produce1091012 Z -bosons. To be specific, assuming a precise measurementδRb=2.0×105at FCC-ee, we can probe a right-handed stop up to 530 GeV through chargino-stop loops, probe a sbottom to 850 GeV through neutralino-sbottom loops and a charged Higgs to 770 GeV through the Higgs-top quark loops for a largetanβ. The full one-loop SUSY correction toRbcan reach1×104in natural SUSY and2×104in the general MSSM.
  • Identifier: System Number: ETOCvdc_100042185830.0x000001; Journal ISSN: 0370-2693; 10.1016/j.physletb.2016.03.075
  • Publication Date: 2016
  • Physical Description: Electronic
  • Shelfmark(s): 6478.762000
  • UIN: ETOCvdc_100042185830.0x000001

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