Higgs self-coupling measurements at the LHC
By M. Dolan, Christoph R. Englert, Michael Spannowsky. 2012
268 citations recorded by the source corpus.
A bstractBoth the ATLAS and CMS collaborations have reported a Standard Model Higgs-like excess at around mh = 125 GeV. If an SM-like Higgs particle is discovered in this particular mass range, an important additional test of the SM electroweak symmetry breaking sector is the measurement of the Higgs self-interactions. We investigate the prospects of measuring the Higgs self-coupling for mh = 125 GeV in the dominant SM decay channels in boosted and unboosted kinematical regimes. We further enhance sensitivity by considering dihiggs systems recoiling against a hard jet. This configuration exhibits a large sensitivity to the Higgs self-coupling which can be accessed in subjet-based analyses. Combining our analyses allows constraints to be set on the Higgs self-coupling at the LHC.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/869fa8dd08a2901b605e15bd5b0fe0ecb26e424c
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In Nuclear and High Energy Physics
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- Fabio Maltoni
- Valentin Hirschi
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Citations in the corpus
- Higgs Physics at the HL-LHC and HE-LHC (2019, background): “For large positive values of absorptive imaginary parts lead to a significant dip in the combined rate at the threshold mhh ⇡ 2mt [348, 349, 311].”
- Higgs boson self-coupling measurements using ratios of cross sections (2013, methodology): “[33,34] focused on the establishment of the Higgs pair production process using improved techniques originating mainly from developments in the understanding of boosted jet substructure [39,40].”
- Automated event generation for loop-induced processes (2015, unknown): “2% [51] ?b.”
- Higgs boson pair production in the D = 6 extension of the SM (2014, methodology): “We follow the basic analysis steps as given originally in [43] and as were described in [50].”
- The measurement of the Higgs self-coupling at the LHC: theoretical status (2012, methodology): “This channel with one lepton plus jets final state has been studied in [85, 86].”
- Top-quark mass effects in double and triple Higgs production in gluon-gluon fusion at NLO (2014, background): “Unfortunately, in the case of double Higgs production, the relevant scale is at least the invariant mass of the HH pair which is typically & 2mt and therefore the HEFT provides only a rough approximation for the total rates and a very poor one for the relevant distributions [19,34].”