A non Standard Model Higgs at the LHC as a sign of naturalness

By A. Arvanitaki, G. Villadoro. 2011

146 citations recorded by the source corpus.

A bstractLight states associated with the hierarchy problem affect the Higgs LHC production and decays. We illustrate this within the MSSM and two simple extensions applying the latest bounds from LHC Higgs searches. Large deviations in the Higgs properties are expected in a natural SUSY spectrum. The discovery of a non-Standard-Model Higgs may signal the presence of light stops accessible at the LHC. Conversely, the more the Higgs is Standard-Model-like, the more tuned the theory becomes. Taking the ratio of different Higgs decay channels at the LHC cancels the leading QCD uncertainties and potentially improves the accuracy in Higgs coupling measurements to the percent level. This may lead to the possibility of doing precision Higgs physics at the LHC. Finally, we entertain the possibility that the ATLAS excess around 125 GeV persists with a Higgs production cross-section that is enhanced compared to the SM. This increase can only be accommodated in extensions of the MSSM and it may suggest that stops lie below 400 GeV, likely within reach of next year’s LHC run.

Subfields: Computer Networks and Communications, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/121618b28de2ce509a25b1b8fd38c06092bf814c

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In Computer Networks and Communications

1. Zhaoxia Heng
2. Jing-yu Zhu
3. N. Craig
4. Abdelhak Djouadi
5. Jin Min Yang
6. Sabine Kraml
7. Junjie Cao

In Nuclear and High Energy Physics

1. A. Wulzer
2. G. Panico
3. M. Redi
4. Andrea Tesi
5. A. Polosa
6. N. Craig
7. J. Quevillon
8. E. Kuflik

Citations in the corpus

• Interpreting LHC Higgs results from natural new physics perspective (2012, background): “A number of partly overlapping papers have recently investigated the 125 GeV Higgs-like excess in the context of composite Higgs [16], supersymmetric Higgs [17–28], and multi-Higgs models [29–32]; see also [33–41].”
• Fully covering the MSSM Higgs sector at the LHC (2015, background): “This possibility is ruled out not only from direct SUSY particle searches but also from the fact that the large value of the MSSM h boson mass, Mh = 125 GeV, requires a SUSY scale in the multi TeV range in GMSB scenarios (MS ∼ 3 TeV in minima GMSB) [70–79].”
• The State of Supersymmetry after Run I of the LHC (2013, background): “Such extensions typically also give rise to corrections to Higgs couplings and other precision observables [50]”
• The constrained NMSSM and Higgs near 125 GeV (2012, background): “ (g 22) =2, and the relic density of dark matter, h. The possibility of describing the LHC observations in the context of the MSSM has been explored in numerous papers, including [3][4][5][6][7][8][9]. A general conclusion seems to be that if all the constraints noted above, including a and 2h, are”
• On the tuning and the mass of the composite Higgs (2012, background): “However in Natural SUSY one relies on additional non-minimal contributions to obtain a heavy enough Higgs.”
• A SM-like Higgs near 125 GeV in low energy SUSY: a comparative study for MSSM and NMSSM (2012, methodology): “• The fancy CMSSM/mSUGRA is hard to give a 125GeV SM-like Higgs boson [52–77].”
• On naturalness of the MSSM and NMSSM (2012, background): “[30–33].”