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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 prospective  (68 % CL) and  (95 % CL) contours (solid red and blue lines, respectively) in the  plane for the CMSSM (with the present 68 and 95 % CL contours shown as dashed red and blue lines, respectively), assuming that the electroweak precision observables are measured at FCC-ee (TLEP) to have the same central values as at the current low-mass CMSSM best-fit point [33] (shown as the filled green star), and neglecting inevitable improvements in other constraints on the supersymmetric models
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Fig16: The prospective (68 % CL) and (95 % CL) contours (solid red and blue lines, respectively) in the plane for the CMSSM (with the present 68 and 95 % CL contours shown as dashed red and blue lines, respectively), assuming that the electroweak precision observables are measured at FCC-ee (TLEP) to have the same central values as at the current low-mass CMSSM best-fit point [33] (shown as the filled green star), and neglecting inevitable improvements in other constraints on the supersymmetric models

Mentions: We have made a crude estimate of the impact on the recent global fit to the CMSSM parameters of these FCC-ee (TLEP) electroweak measurements, neglecting the inevitable improvements in flavour, dark matter and Higgs observables, and setting aside the direct measurements of sparticle masses possible at the LHC following discovery in this optimistic scenario. As we see in Fig. 16, the electroweak precision measurements would, by themselves, provide very tight constraints on the CMSSM parameters and .Fig. 16


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 prospective  (68 % CL) and  (95 % CL) contours (solid red and blue lines, respectively) in the  plane for the CMSSM (with the present 68 and 95 % CL contours shown as dashed red and blue lines, respectively), assuming that the electroweak precision observables are measured at FCC-ee (TLEP) to have the same central values as at the current low-mass CMSSM best-fit point [33] (shown as the filled green star), 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

Fig16: The prospective (68 % CL) and (95 % CL) contours (solid red and blue lines, respectively) in the plane for the CMSSM (with the present 68 and 95 % CL contours shown as dashed red and blue lines, respectively), assuming that the electroweak precision observables are measured at FCC-ee (TLEP) to have the same central values as at the current low-mass CMSSM best-fit point [33] (shown as the filled green star), and neglecting inevitable improvements in other constraints on the supersymmetric models
Mentions: We have made a crude estimate of the impact on the recent global fit to the CMSSM parameters of these FCC-ee (TLEP) electroweak measurements, neglecting the inevitable improvements in flavour, dark matter and Higgs observables, and setting aside the direct measurements of sparticle masses possible at the LHC following discovery in this optimistic scenario. As we see in Fig. 16, the electroweak precision measurements would, by themselves, provide very tight constraints on the CMSSM parameters and .Fig. 16

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.