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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.


The  (68 % CL) and  (95 % CL) contours (red and blue, respectively) in the  plane for the CMSSM, assuming that Higgs measurements at FCC-ee (TLEP) [65] have the same central values as at the current low-mass best-fit points, and neglecting inevitable improvements in other constraints on the supersymmetric models
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Fig19: The (68 % CL) and (95 % CL) contours (red and blue, respectively) in the plane for the CMSSM, assuming that Higgs measurements at FCC-ee (TLEP) [65] have the same central values as at the current low-mass best-fit points, and neglecting inevitable improvements in other constraints on the supersymmetric models

Mentions: Also as in the case of the electroweak precision observables discussed above, we have made a crude estimate of the impact of the prospective FCC-ee (TLEP) Higgs measurements [65] on the global function for the CMSSM, again neglecting the inevitable improvements in flavour and dark matter observables, and setting aside the electroweak precision observables as well as the direct measurements of sparticle masses. As we see in Fig. 19, the high-precision Higgs measurements would, by themselves, again provide constraints on and , which would be of comparable importance to those from the electroweak precision observables shown in the corresponding panel of Fig. 16.Fig. 19


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)

The  (68 % CL) and  (95 % CL) contours (red and blue, respectively) in the  plane for the CMSSM, assuming that Higgs measurements at FCC-ee (TLEP) [65] have the same central values as at the current low-mass best-fit points, and neglecting inevitable improvements in other constraints on the supersymmetric models
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

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

Fig19: The (68 % CL) and (95 % CL) contours (red and blue, respectively) in the plane for the CMSSM, assuming that Higgs measurements at FCC-ee (TLEP) [65] have the same central values as at the current low-mass best-fit points, and neglecting inevitable improvements in other constraints on the supersymmetric models
Mentions: Also as in the case of the electroweak precision observables discussed above, we have made a crude estimate of the impact of the prospective FCC-ee (TLEP) Higgs measurements [65] on the global function for the CMSSM, again neglecting the inevitable improvements in flavour and dark matter observables, and setting aside the electroweak precision observables as well as the direct measurements of sparticle masses. As we see in Fig. 19, the high-precision Higgs measurements would, by themselves, again provide constraints on and , which would be of comparable importance to those from the electroweak precision observables shown in the corresponding panel of Fig. 16.Fig. 19

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.