Superbumps
Abstract
For a wide range of supersymmetric models, there is a chiral superfield whose scalar and pseudo-scalar have approximately degenerate masses and couplings to Standard Model particles. At colliders, they may show up as “superbumps”: a pair of resonances with similar masses and production cross-sections. Observing the superbumps may provide evidence of supersymmetry even without seeing superpartners with a different spin. We present two models which realize the superbump scenario. The first one contains an elementary superfield, 24, under SU(5)GUT, while the second one is based on the supersymmetric QCD model with Nf = Nc + 1 and identifying SU(Nf = 5) as SU(5)GUT. Both models have rich phenomenology including nearly mass-degenerate scalar and pseudo-scalar color octets that appear as resonances of two gluons or one gluon plus one photon. As a result, we also show that the recent 750 GeV diphoton excess at the LHC could be the first hint of a superbump signature.
- Authors:
-
- Univ. of Wisconsin-Madison, Madison, WI (United States)
- Publication Date:
- Research Org.:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1326950
- Grant/Contract Number:
- FG02-95ER40896
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 6; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; Technicolor and Composite Models; Supersymmetric Standard Model
Citation Formats
Bai, Yang, and Berger, Joshua. Superbumps. United States: N. p., 2016.
Web. doi:10.1007/JHEP06(2016)157.
Bai, Yang, & Berger, Joshua. Superbumps. United States. https://doi.org/10.1007/JHEP06(2016)157
Bai, Yang, and Berger, Joshua. Mon .
"Superbumps". United States. https://doi.org/10.1007/JHEP06(2016)157. https://www.osti.gov/servlets/purl/1326950.
@article{osti_1326950,
title = {Superbumps},
author = {Bai, Yang and Berger, Joshua},
abstractNote = {For a wide range of supersymmetric models, there is a chiral superfield whose scalar and pseudo-scalar have approximately degenerate masses and couplings to Standard Model particles. At colliders, they may show up as “superbumps”: a pair of resonances with similar masses and production cross-sections. Observing the superbumps may provide evidence of supersymmetry even without seeing superpartners with a different spin. We present two models which realize the superbump scenario. The first one contains an elementary superfield, 24, under SU(5)GUT, while the second one is based on the supersymmetric QCD model with Nf = Nc + 1 and identifying SU(Nf = 5) as SU(5)GUT. Both models have rich phenomenology including nearly mass-degenerate scalar and pseudo-scalar color octets that appear as resonances of two gluons or one gluon plus one photon. As a result, we also show that the recent 750 GeV diphoton excess at the LHC could be the first hint of a superbump signature.},
doi = {10.1007/JHEP06(2016)157},
journal = {Journal of High Energy Physics (Online)},
number = 6,
volume = 2016,
place = {United States},
year = {Mon Jun 27 00:00:00 EDT 2016},
month = {Mon Jun 27 00:00:00 EDT 2016}
}
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