Di-Higgs boson peaks and top valleys: Interference effects in Higgs sector extensions
Abstract
stand in competition with related searches in top quark final states as optimal channels for the discovery of beyond the Standard Model (BSM) physics. This complementarity is particularly relevant for benchmark scenarios that aim to highlight multi-Higgs production as a standard candle for the study of BSM phenomena. In this note, we compare interference effects in $$\bar{tt}$$ final states with correlated phenomena in double Higgs production in the complex singlet and the complex 2-Higgs-Doublet Models. Our results indicate that the BSM discovery potential in di-Higgs searches can be underestimated in comparison to $$\bar{tt}$$ resonance searches. Top pair final states are typically suppressed due to destructive signal-background interference, while $hh$ final states can be enhanced due to signal-signal interference. For parameter choices where the two heavy Higgs resonances are well separated in mass, top final states are suppressed relative to the naive signal expectation, while estimates of the production cross section times branching ratio remain accurate at the O(10%) level for double Higgs final states.
- Authors:
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1595508
- Alternate Identifier(s):
- OSTI ID: 1595685
- Report Number(s):
- BNL-213581-2020-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 015019
- Grant/Contract Number:
- de-sc0012704; SC0012704; ST-P000746-1
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 101 Journal Issue: 1; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Higgs sector; BSM physics; CP violations; Large hadron collider
Citation Formats
Basler, Philipp, Dawson, Sally, Englert, Christoph, and Mühlleitner, Margarete. Di-Higgs boson peaks and top valleys: Interference effects in Higgs sector extensions. United States: N. p., 2020.
Web. doi:10.1103/PhysRevD.101.015019.
Basler, Philipp, Dawson, Sally, Englert, Christoph, & Mühlleitner, Margarete. Di-Higgs boson peaks and top valleys: Interference effects in Higgs sector extensions. United States. https://doi.org/10.1103/PhysRevD.101.015019
Basler, Philipp, Dawson, Sally, Englert, Christoph, and Mühlleitner, Margarete. Tue .
"Di-Higgs boson peaks and top valleys: Interference effects in Higgs sector extensions". United States. https://doi.org/10.1103/PhysRevD.101.015019.
@article{osti_1595508,
title = {Di-Higgs boson peaks and top valleys: Interference effects in Higgs sector extensions},
author = {Basler, Philipp and Dawson, Sally and Englert, Christoph and Mühlleitner, Margarete},
abstractNote = {stand in competition with related searches in top quark final states as optimal channels for the discovery of beyond the Standard Model (BSM) physics. This complementarity is particularly relevant for benchmark scenarios that aim to highlight multi-Higgs production as a standard candle for the study of BSM phenomena. In this note, we compare interference effects in $\bar{tt}$ final states with correlated phenomena in double Higgs production in the complex singlet and the complex 2-Higgs-Doublet Models. Our results indicate that the BSM discovery potential in di-Higgs searches can be underestimated in comparison to $\bar{tt}$ resonance searches. Top pair final states are typically suppressed due to destructive signal-background interference, while $hh$ final states can be enhanced due to signal-signal interference. For parameter choices where the two heavy Higgs resonances are well separated in mass, top final states are suppressed relative to the naive signal expectation, while estimates of the production cross section times branching ratio remain accurate at the O(10%) level for double Higgs final states.},
doi = {10.1103/PhysRevD.101.015019},
journal = {Physical Review D},
number = 1,
volume = 101,
place = {United States},
year = {2020},
month = {1}
}
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