Observation of a Dimuon Resonance at 9.5 GeV in 400-GeV Proton-Nucleus Collisions

Herb, S. W.; Hom, D. C.; Lederman, Leon M.; Sens, J.C.; Snyder, H. D.; Yoh, J.; Appel, J. A.; Brown, Bruce; Brown, C. N.; Innes, W. R.; Ueno, K.; Yamanouchi, T.; Ito, A. S.; Jöstlein, H.; Kaplan, Daniel M.; Kephart, R.

doi:10.1103/physrevlett.39.252

Cited by 970 publications

(455 citation statements)

References 6 publications

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“…However these can be eliminated from the Lagrangian by using the equations of motion to rewrite them in terms of the other fields. 4 The minimum particle content of a realistic SUSY model is actually more than this as discussed in section 1.3.2 on the Minimal Supersymmetric Standard Model (MSSM).…”

Section: Supersymmetrymentioning

confidence: 99%

“…Since this time it has achieved remarkable success with the discovery, as predicted by the model of the tau lepton [1] along with the charm [2,3] and bottom quarks [4] in the 1970s, the W and Z bosons in the 1980s [5][6][7], the top quark in the 1990s [8] and the tau neutrino in 2000 [9]. The final particle in the standard model, the Higgs boson was discovered at CERN in July 2012 [10,11], completing the set of particles predicted by the SM.…”

Section: The Standard Modelmentioning

confidence: 99%

“…In the present study, we performed a large scan of parameter space using CPsuperH to produce the data points, concentrating on those parameters with an important role in the masses and couplings of the stops, sbottoms and staus as well as the mass of the Higgs boson and its couplings to the bottom quark 4 . These masses and couplings are largely independent of the M 1 mass parameter (they vary only ∼ 0.1% for M 1 ranged from 0.1 TeV -100 TeV).…”

Section: In the Mssm The Sm-like Higgs Is Either The Heaviest Cp-evementioning

confidence: 99%

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Beyond Standard Model Collider Phenomenology of Higgs Physics and Supersymmetry

Thomas¹

2016

Springer Theses

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In this thesis I study the collider phenomenology of BSM physics at the LHC, concentrating on the Higgs boson and supersymmetery. The implications and effects on cross sections of the loss of unitarity in scattering processes involving multiple vector bosons and/or the Higgs, when the Higgs couplings to the W and the Z are non-SM, is studied using an effective Lagrangian. Subsequently methods to remove unwanted background from transversely polarised vector bosons are explored, which enable an estimation of the potential to measure the Higgs couplings to weak bosons in a model-independent way via vector boson fusion. MSSM effects on Higgs production and decay are also considered, concentrating on the effects due to light stops, sbottoms and staus. Amongst other things, we find that light 3 rd generation squarks generally produce asymmetrical alteration in signal strengths of different production channels, generally causing µ V BF µ ggF > 1. Finally we extend some ATLAS analyses in the low ∆m = mt − mχ0 1 region, extending the excluded masses of light stops. This enables us to limit the maximum effects of light stops on the Higgs, and further limits the parameter space where the light stop scenario of electroweak baryogenesis is viable.

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Section: Supersymmetrymentioning

confidence: 99%

Section: The Standard Modelmentioning

confidence: 99%

Section: In the Mssm The Sm-like Higgs Is Either The Heaviest Cp-evementioning

confidence: 99%

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Beyond Standard Model Collider Phenomenology of Higgs Physics and Supersymmetry

Thomas¹

2016

Springer Theses

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“…The top quark was predicted in 1977 when the b quark was discovered at Fermilab [2]. The b quark was observed to be a down-type quark, and since the theory requires each quark to have an isospin partner, the top quark was postulated as an up-type quark.…”

Section: Discoverymentioning

confidence: 99%

Discovery of Single Top Quark Production

Gillberg

2011

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The first observation of electroweak single top quark production was recently reported by the the DØ and CDF collaborations based on 2.3 and 3.2 fb −1 of pp collision data collected at √ s = 1.96 TeV from the Fermilab Tevatron collider. 1,2 Several multivariate techniques are used to separate the single top signal from backgrounds, and both collaborations present measurements of the single top cross section and the CKM matrix element |V tb |.

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“…The E-288 team also performed several statistical tests to account for the trials factor (comparing MC probability to Poisson probability); and even after obtaining a peak with very large significance, they continued to investigate systematic effects. Their final announcement claims a discovery but does not quote a number of σ, noting however that the signal is indeed "statistically significant" [3].…”

Section: How 5σ Became a Standardmentioning

confidence: 99%

Extraordinary claims: the 0.000029% solution

Dorigo

2015

EPJ Web of Conferences

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Abstract. The five-standard-deviation threshold is an established standard for discovery claims in experimental particle physics; however, the criterion is an ad-hoc recipe with no solid foundations. In this report I discuss its origins and the issues it was designed to address, pointing out its shortcomings and the need for a more flexible approach to decide when a new observed effect should be taken seriously.

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Observation of a Dimuon Resonance at 9.5 GeV in 400-GeV Proton-Nucleus Collisions

Cited by 970 publications

References 6 publications

Beyond Standard Model Collider Phenomenology of Higgs Physics and Supersymmetry

Beyond Standard Model Collider Phenomenology of Higgs Physics and Supersymmetry

Discovery of Single Top Quark Production

Extraordinary claims: the 0.000029% solution

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