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Collider Interplay for Supersymmetry, Higgs and Dark Matter.

Buchmueller O, Citron M, Ellis J, Guha S, Marrouche J, Olive KA, de Vries K, Zheng J - Eur Phys J C Part Fields (2015)

Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: High Energy Physics Group, Blackett Lab., Imperial College, Prince Consort Road, London, SW7 2AZ UK.

ABSTRACT

We discuss the potential impacts on the CMSSM of future LHC runs and possible [Formula: see text] and higher-energy proton-proton colliders, considering searches for supersymmetry via  [Formula: see text] 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 [Formula: see text] 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 [Formula: see text] and [Formula: see text] of the CMSSM. Slepton measurements at CLIC would enable [Formula: see text] and [Formula: see text] 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 [Formula: see text] 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.

No MeSH data available.


Related in: MedlinePlus

Upper panels the 68 and 95 % CL regions in the  plane of the CMSSM, overlaying potential direct measurements at LHC14 with 300/fb (left panel) and 3000/fb (right panel) (pink and blue shading) with indirect determinations via electroweak precision and Higgs measurements at FCC-ee (TLEP) [65] (red and blue solid lines). Lower panels the 68 and 95 % CL contours for the combination of the prospective constraints from LHC14 with 300/fb (left panel) and 3000/fb (right panel) with the indirect determinations via electroweak precision and Higgs measurements at FCC-ee (TLEP) [65] (red and blue solid lines). Also shown are the 68 and 95 % CL regions found in a recent global fit to the CMSSM (red and blue dashed lines) [33]
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Fig20: Upper panels the 68 and 95 % CL regions in the plane of the CMSSM, overlaying potential direct measurements at LHC14 with 300/fb (left panel) and 3000/fb (right panel) (pink and blue shading) with indirect determinations via electroweak precision and Higgs measurements at FCC-ee (TLEP) [65] (red and blue solid lines). Lower panels the 68 and 95 % CL contours for the combination of the prospective constraints from LHC14 with 300/fb (left panel) and 3000/fb (right panel) with the indirect determinations via electroweak precision and Higgs measurements at FCC-ee (TLEP) [65] (red and blue solid lines). Also shown are the 68 and 95 % CL regions found in a recent global fit to the CMSSM (red and blue dashed lines) [33]

Mentions: The potential comparison between LHC and FCC-ee (TLEP) measurements in the best-fit low-mass CMSSM scenario can be seen in Fig. 20, where we overlay in the CMSSM plane the potential direct measurements at the LHC presented earlier (pink and blue shading) with indirect determinations at FCC-ee (TLEP) via EWPOs and Higgs measurements. A triple coincidence of direct sparticle mass measurements with indirect predictions from EWPOs and Higgs measurements would be truly impressive, a worthy successor to the successful predictions of the top and Higgs masses based on electroweak precision observables at LEP.


Collider Interplay for Supersymmetry, Higgs and Dark Matter.

Buchmueller O, Citron M, Ellis J, Guha S, Marrouche J, Olive KA, de Vries K, Zheng J - Eur Phys J C Part Fields (2015)

Upper panels the 68 and 95 % CL regions in the  plane of the CMSSM, overlaying potential direct measurements at LHC14 with 300/fb (left panel) and 3000/fb (right panel) (pink and blue shading) with indirect determinations via electroweak precision and Higgs measurements at FCC-ee (TLEP) [65] (red and blue solid lines). Lower panels the 68 and 95 % CL contours for the combination of the prospective constraints from LHC14 with 300/fb (left panel) and 3000/fb (right panel) with the indirect determinations via electroweak precision and Higgs measurements at FCC-ee (TLEP) [65] (red and blue solid lines). Also shown are the 68 and 95 % CL regions found in a recent global fit to the CMSSM (red and blue dashed lines) [33]
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4591918&req=5

Fig20: Upper panels the 68 and 95 % CL regions in the plane of the CMSSM, overlaying potential direct measurements at LHC14 with 300/fb (left panel) and 3000/fb (right panel) (pink and blue shading) with indirect determinations via electroweak precision and Higgs measurements at FCC-ee (TLEP) [65] (red and blue solid lines). Lower panels the 68 and 95 % CL contours for the combination of the prospective constraints from LHC14 with 300/fb (left panel) and 3000/fb (right panel) with the indirect determinations via electroweak precision and Higgs measurements at FCC-ee (TLEP) [65] (red and blue solid lines). Also shown are the 68 and 95 % CL regions found in a recent global fit to the CMSSM (red and blue dashed lines) [33]
Mentions: The potential comparison between LHC and FCC-ee (TLEP) measurements in the best-fit low-mass CMSSM scenario can be seen in Fig. 20, where we overlay in the CMSSM plane the potential direct measurements at the LHC presented earlier (pink and blue shading) with indirect determinations at FCC-ee (TLEP) via EWPOs and Higgs measurements. A triple coincidence of direct sparticle mass measurements with indirect predictions from EWPOs and Higgs measurements would be truly impressive, a worthy successor to the successful predictions of the top and Higgs masses based on electroweak precision observables at LEP.

Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: High Energy Physics Group, Blackett Lab., Imperial College, Prince Consort Road, London, SW7 2AZ UK.

ABSTRACT

We discuss the potential impacts on the CMSSM of future LHC runs and possible [Formula: see text] and higher-energy proton-proton colliders, considering searches for supersymmetry via  [Formula: see text] 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 [Formula: see text] 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 [Formula: see text] and [Formula: see text] of the CMSSM. Slepton measurements at CLIC would enable [Formula: see text] and [Formula: see text] 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 [Formula: see text] 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.

No MeSH data available.


Related in: MedlinePlus