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Title: Collider Interplay for Supersymmetry, Higgs and Dark Matter

Abstract

Here, we discuss the potential impacts on the CMSSM of future LHC runs and possible e +e and higher-energy proton–proton colliders, considering searches for supersymmetry via /E T events, precision electroweak physics, Higgs measurements and dark matter searches. We validate and present estimates of the physics reach for exclusion or discovery of supersymmetry via /E T searches at the LHC, which should cover the low-mass regions of the CMSSM parameter space favoured in a recent global analysis. As we illustrate with a low-mass benchmark point, a discovery would make possible accurate LHC measurements of sparticle masses using the MT2 variable, which could be combined with cross-section and other measurements to constrain the gluino, squark and stop masses and hence the soft supersymmetry-breaking parameters m 0,m 1/2 and A 0 of the CMSSM. Slepton measurements at CLIC would enable m 0 and m 1/2 to be determined with high precision. If supersymmetry is indeed discovered in the low-mass region, precision electroweak and Higgs measurements with a future circular e +e collider (FCC-ee, also known as TLEP) combined with LHC measurements would provide tests of the CMSSM at the loop level. If supersymmetry is not discovered at the LHC, itmore » is likely to lie somewhere along a focus-point, stop-coannihilation strip or direct-channel A / H resonance funnel. We discuss the prospects for discovering supersymmetry along these strips at a future circular proton–proton collider such as FCC-hh. Illustrative benchmark points on these strips indicate that also in this case FCC-ee could provide tests of the CMSSM at the loop level.« less

Authors:
 [1];  [1];  [2];  [3];  [4];  [5];  [1];  [5]
  1. Imperial College, London (United Kingdom)
  2. King's College London, London (United Kingdom); ; European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  3. European Organization for Nuclear Research (CERN), Geneva (Switzerland); BITS Pilani, Goa (India)
  4. Imperial College, London (United Kingdom); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  5. Univ. of Minnesota, Minneapolis, MN (United States)
Publication Date:
Research Org.:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1436123
Grant/Contract Number:  
SC0011842
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 75; Journal Issue: 10; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Higgs Boson; Light Supersymmetric Particle; Benchmark Point; Sparticle Masse; Electroweak Precision Observable

Citation Formats

Buchmueller, Oliver, Citron, M., Ellis, J., Guha, S., Marrouche, J., Olive, K. A., de Vries, K., and Zheng, Jiaming. Collider Interplay for Supersymmetry, Higgs and Dark Matter. United States: N. p., 2015. Web. doi:10.1140/epjc/s10052-015-3675-3.
Buchmueller, Oliver, Citron, M., Ellis, J., Guha, S., Marrouche, J., Olive, K. A., de Vries, K., & Zheng, Jiaming. Collider Interplay for Supersymmetry, Higgs and Dark Matter. United States. doi:10.1140/epjc/s10052-015-3675-3.
Buchmueller, Oliver, Citron, M., Ellis, J., Guha, S., Marrouche, J., Olive, K. A., de Vries, K., and Zheng, Jiaming. Thu . "Collider Interplay for Supersymmetry, Higgs and Dark Matter". United States. doi:10.1140/epjc/s10052-015-3675-3. https://www.osti.gov/servlets/purl/1436123.
@article{osti_1436123,
title = {Collider Interplay for Supersymmetry, Higgs and Dark Matter},
author = {Buchmueller, Oliver and Citron, M. and Ellis, J. and Guha, S. and Marrouche, J. and Olive, K. A. and de Vries, K. and Zheng, Jiaming},
abstractNote = {Here, we discuss the potential impacts on the CMSSM of future LHC runs and possible e+e– and higher-energy proton–proton colliders, considering searches for supersymmetry via /ET events, precision electroweak physics, Higgs measurements and dark matter searches. We validate and present estimates of the physics reach for exclusion or discovery of supersymmetry via /ET searches at the LHC, which should cover the low-mass regions of the CMSSM parameter space favoured in a recent global analysis. As we illustrate with a low-mass benchmark point, a discovery would make possible accurate LHC measurements of sparticle masses using the MT2 variable, which could be combined with cross-section and other measurements to constrain the gluino, squark and stop masses and hence the soft supersymmetry-breaking parameters m0,m1/2 and A0 of the CMSSM. Slepton measurements at CLIC would enable m0 and m1/2 to be determined with high precision. If supersymmetry is indeed discovered in the low-mass region, precision electroweak and Higgs measurements with a future circular e+e– collider (FCC-ee, also known as TLEP) combined with LHC measurements would provide tests of the CMSSM at the loop level. If supersymmetry is not discovered at the LHC, it is likely to lie somewhere along a focus-point, stop-coannihilation strip or direct-channel A / H resonance funnel. We discuss the prospects for discovering supersymmetry along these strips at a future circular proton–proton collider such as FCC-hh. Illustrative benchmark points on these strips indicate that also in this case FCC-ee could provide tests of the CMSSM at the loop level.},
doi = {10.1140/epjc/s10052-015-3675-3},
journal = {European Physical Journal. C, Particles and Fields},
issn = {1434-6044},
number = 10,
volume = 75,
place = {United States},
year = {2015},
month = {10}
}

Journal Article:
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Cited by: 15 works
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Figures / Tables:

Figure 1 Figure 1: The (m0,m1/2) plane in the CMSSM. The ΔX2 = 2.30 (68 % CL) and 5.99 (95 % CL) regions found in recent global fits are bounded by solid red and blue lines, respectively. The best-fit point in the lowmass ‘Crimea’ regions is indicated by a filled green star.more » Also shown as solid black (purple, green) lines are the sensitivities of LHC ET searches for exclusions at the 95 % CLs with 20/fb of data at 8 TeV (300, 3000/fb of data at 14 TeV). The purple contour is expected to coincide (within uncertainties) with the 5-σ discovery contour at the LHC with 3000/fb of data at 14 TeV« less

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