Scrutinizing the Higgs quartic coupling at a future 100 TeV proton–proton collider with taus and b-jets
Abstract
The Higgs potential consists of an unexplored territory in which the electroweak symmetry breaking is triggered, and it is moreover directly related to the nature of the electroweak phase transition. Measuring the Higgs boson cubic and quartic couplings, or getting equivalently information on the exact shape of the Higgs potential, is therefore an essential task. However, direct measurements beyond the cubic self-interaction of the Higgs boson consist of a huge challenge, even for a future proton–proton collider expected to operate at a center-of-mass energy of 100 TeV. We present a novel approach to extract model-independent constraints on the triple and quartic Higgs self-coupling by investigating triple Higgs-boson hadroproduction at a center-of-mass energy of 100 TeV, focusing on the channel that was previously overlooked due to a supposedly too large background. It is thrown into sharp relief that the assist from transverse variables such as and a boosted configuration ensures a high signal sensitivity. We derive the luminosities that would be required to constrain given deviations from the Standard Model in the Higgs self-interactions, showing for instance that a 2σ sensitivity could be achieved for an integrated luminosity of when Standard Model properties are assumed. With the prospects of combining thesemore »
- Publication Date:
- Research Org.:
- Univ. of Kansas, Lawrence, KS (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1560895
- Alternate Identifier(s):
- OSTI ID: 1465775
- Grant/Contract Number:
- FG02-12ER41809; SC0007863
- Resource Type:
- Published Article
- Journal Name:
- Physics Letters. B
- Additional Journal Information:
- Journal Name: Physics Letters. B Journal Volume: 771 Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Fuks, Benjamin, Kim, Jeong Han, and Lee, Seung J. Scrutinizing the Higgs quartic coupling at a future 100 TeV proton–proton collider with taus and b-jets. Netherlands: N. p., 2017.
Web. doi:10.1016/j.physletb.2017.05.075.
Fuks, Benjamin, Kim, Jeong Han, & Lee, Seung J. Scrutinizing the Higgs quartic coupling at a future 100 TeV proton–proton collider with taus and b-jets. Netherlands. https://doi.org/10.1016/j.physletb.2017.05.075
Fuks, Benjamin, Kim, Jeong Han, and Lee, Seung J. Tue .
"Scrutinizing the Higgs quartic coupling at a future 100 TeV proton–proton collider with taus and b-jets". Netherlands. https://doi.org/10.1016/j.physletb.2017.05.075.
@article{osti_1560895,
title = {Scrutinizing the Higgs quartic coupling at a future 100 TeV proton–proton collider with taus and b-jets},
author = {Fuks, Benjamin and Kim, Jeong Han and Lee, Seung J.},
abstractNote = {The Higgs potential consists of an unexplored territory in which the electroweak symmetry breaking is triggered, and it is moreover directly related to the nature of the electroweak phase transition. Measuring the Higgs boson cubic and quartic couplings, or getting equivalently information on the exact shape of the Higgs potential, is therefore an essential task. However, direct measurements beyond the cubic self-interaction of the Higgs boson consist of a huge challenge, even for a future proton–proton collider expected to operate at a center-of-mass energy of 100 TeV. We present a novel approach to extract model-independent constraints on the triple and quartic Higgs self-coupling by investigating triple Higgs-boson hadroproduction at a center-of-mass energy of 100 TeV, focusing on the channel that was previously overlooked due to a supposedly too large background. It is thrown into sharp relief that the assist from transverse variables such as and a boosted configuration ensures a high signal sensitivity. We derive the luminosities that would be required to constrain given deviations from the Standard Model in the Higgs self-interactions, showing for instance that a 2σ sensitivity could be achieved for an integrated luminosity of when Standard Model properties are assumed. With the prospects of combining these findings with other triple-Higgs search channels, the Standard Model Higgs quartic coupling could in principle be reached with a significance beyond the 3σ level.},
doi = {10.1016/j.physletb.2017.05.075},
journal = {Physics Letters. B},
number = C,
volume = 771,
place = {Netherlands},
year = {Tue Aug 01 00:00:00 EDT 2017},
month = {Tue Aug 01 00:00:00 EDT 2017}
}
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