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Title: Relic neutralino surface at a 100 TeV collider

Abstract

We map the parameter space for minimal supersymmetric Standard Model neutralino dark matter which freezes out to the observed relic abundance, in the limit that all superpartners except the neutralinos and charginos are decoupled. In this space of relic neutralinos, we show the dominant dark matter annihilation modes, the mass splittings among the electroweakinos, direct detection rates, and collider cross sections. The mass difference between the dark matter and the next-to-lightest neutral and charged states is typically much less than electroweak gauge boson masses. With these small mass differences, the relic neutralino surface is accessible to a future 100 TeV hadron collider, which can discover interneutralino mass splittings down to 1 GeV and thermal relic dark matter neutralino masses up to 1.5 TeV with a few inverse attobarns of luminosity. This coverage is a direct consequence of the increased collider energy: in the Standard Model events with missing transverse momentum in the TeV range have mostly hard electroweak radiation, distinct from the soft radiation shed in compressed electroweakino decays. As a result, we exploit this kinematic feature in final states including photons and leptons, tailored to the 100 TeV collider environment.

Authors:
 [1];  [2];  [1];  [1];  [3];  [3];  [4]
  1. Univ. of Notre Dame, Notre Dame, IN (United States)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Univ. Heidelberg (Germany)
  4. The Univ. of Tokyo, Kashiwa (Japan)
Publication Date:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
1226310
Alternate Identifier(s):
OSTI ID: 1180318
Report Number(s):
FERMILAB-PUB-14-517-T; IPMU-14-0346
Journal ID: ISSN 1550-7998; PRVDAQ; arXiv eprint number arXiv:1412.4789; TRN: US1601156
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 91; Journal Issue: 5; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Bramante, Joseph, Fox, Patrick J., Martin, Adam, Ostdiek, Bryan, Plehn, Tilman, Schell, Torben, and Takeuchi, Michihisa. Relic neutralino surface at a 100 TeV collider. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.91.054015.
Bramante, Joseph, Fox, Patrick J., Martin, Adam, Ostdiek, Bryan, Plehn, Tilman, Schell, Torben, & Takeuchi, Michihisa. Relic neutralino surface at a 100 TeV collider. United States. https://doi.org/10.1103/PhysRevD.91.054015
Bramante, Joseph, Fox, Patrick J., Martin, Adam, Ostdiek, Bryan, Plehn, Tilman, Schell, Torben, and Takeuchi, Michihisa. Wed . "Relic neutralino surface at a 100 TeV collider". United States. https://doi.org/10.1103/PhysRevD.91.054015. https://www.osti.gov/servlets/purl/1226310.
@article{osti_1226310,
title = {Relic neutralino surface at a 100 TeV collider},
author = {Bramante, Joseph and Fox, Patrick J. and Martin, Adam and Ostdiek, Bryan and Plehn, Tilman and Schell, Torben and Takeuchi, Michihisa},
abstractNote = {We map the parameter space for minimal supersymmetric Standard Model neutralino dark matter which freezes out to the observed relic abundance, in the limit that all superpartners except the neutralinos and charginos are decoupled. In this space of relic neutralinos, we show the dominant dark matter annihilation modes, the mass splittings among the electroweakinos, direct detection rates, and collider cross sections. The mass difference between the dark matter and the next-to-lightest neutral and charged states is typically much less than electroweak gauge boson masses. With these small mass differences, the relic neutralino surface is accessible to a future 100 TeV hadron collider, which can discover interneutralino mass splittings down to 1 GeV and thermal relic dark matter neutralino masses up to 1.5 TeV with a few inverse attobarns of luminosity. This coverage is a direct consequence of the increased collider energy: in the Standard Model events with missing transverse momentum in the TeV range have mostly hard electroweak radiation, distinct from the soft radiation shed in compressed electroweakino decays. As a result, we exploit this kinematic feature in final states including photons and leptons, tailored to the 100 TeV collider environment.},
doi = {10.1103/PhysRevD.91.054015},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 5,
volume = 91,
place = {United States},
year = {Wed Mar 11 00:00:00 EDT 2015},
month = {Wed Mar 11 00:00:00 EDT 2015}
}

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Cited by: 53 works
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Works referencing / citing this record:

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