Goldstini Can Give the Higgs a Boost
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1103.1631.pdf
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Author(s)
Thaler, Jesse
Thomas, Zoe
Date Issued
July 2011
Journal
Journal of High Energy Physics
Publisher
Springer Berlin/Heidelberg
Citation
Thaler, Jesse, and Zoe Thomas. “Goldstini can give the Higgs a boost.” Journal of High Energy Physics 2011.7 (2011).
Version
Author's final manuscript
Abstract
Supersymmetric collider phenomenology depends crucially on whether the
lightest observable-sector supersymmetric particle (LOSP) decays, and if so, what the
LOSP decay products are. For instance, in SUSY models where the gravitino is lighter
than the LOSP, the LOSP decays to its superpartner and a longitudinal gravitino via supercurrent
couplings. In this paper, we show that LOSP decays can be substantially modi ed
when there are multiple sectors that break supersymmetry, where in addition to the gravitino
there are light uneaten goldstini. As a particularly striking example, a bino-like LOSP
can have a near 100% branching fraction to a higgs boson and an uneaten goldstino, even
if the LOSP has negligible higgsino fraction. This occurs because the uneaten goldstino is
unconstrained by the supercurrent, allowing additional operators to mediate LOSP decay.
These operators can be enhanced in the presence of a U(1)R symmetry, leading to copious
boosted higgs production in SUSY cascade decays.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution-Noncommercial-Share Alike 3.0
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DOI of Published Version
https://doi.org/10.1007/jhep07(2011)060
