English

Higgs self-coupling measurements at the LHC

High Energy Physics - Phenomenology 2015-06-05 v2 High Energy Physics - Experiment

Abstract

Both the ATLAS and CMS collaborations have reported a Standard Model Higgs-like excess at around mh=125m_h = 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\gevm_h=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.

Keywords

Cite

@article{arxiv.1206.5001,
  title  = {Higgs self-coupling measurements at the LHC},
  author = {Matthew J. Dolan and Christoph Englert and Michael Spannowsky},
  journal= {arXiv preprint arXiv:1206.5001},
  year   = {2015}
}

Comments

13 pages, 8 figures, 5 tables, references added

R2 v1 2026-06-21T21:23:34.675Z