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| Home > Publications database > Sensitivity to Triple Higgs Couplings via Di-Higgs Production in the 2HDM at the (HL-)LHC > print |
| 001 | 490453 | ||
| 005 | 20240128022858.0 | ||
| 024 | 7 | _ | |a Arco:2022lai |2 INSPIRETeX |
| 024 | 7 | _ | |a inspire:2617052 |2 inspire |
| 024 | 7 | _ | |a arXiv:2212.11242 |2 arXiv |
| 024 | 7 | _ | |a 10.3204/PUBDB-2022-07759 |2 datacite_doi |
| 037 | _ | _ | |a PUBDB-2022-07759 |
| 041 | _ | _ | |a English |
| 088 | _ | _ | |a DESY-22-203 |2 DESY |
| 088 | _ | _ | |a arXiv:2212.11242 |2 arXiv |
| 088 | _ | _ | |a IFT-UAM/CSIC-22-073 |2 Other |
| 088 | _ | _ | |a KA-TP-30-2022 |2 Other |
| 100 | 1 | _ | |a Arco, F. |0 F.Arco.1 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Sensitivity to Triple Higgs Couplings via Di-Higgs Production in the 2HDM at the (HL-)LHC |
| 260 | _ | _ | |c 2022 |
| 336 | 7 | _ | |a Preprint |b preprint |m preprint |0 PUB:(DE-HGF)25 |s 1676298335_29394 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a WORKING_PAPER |2 ORCID |
| 336 | 7 | _ | |a Electronic Article |0 28 |2 EndNote |
| 336 | 7 | _ | |a preprint |2 DRIVER |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a Output Types/Working Paper |2 DataCite |
| 500 | _ | _ | |a 43 pages, 26 figures |
| 520 | _ | _ | |a An important task of the LHC is the investigation of the Higgs-boson sector. Of particular interest is the reconstruction of the Higgs potential, i.e. the measurement of the Higgs self-couplings. Based on previous analyses, within the 2HDMs type~I and~II, we analyze several two-dimensional benchmark planes that are over large parts in agreement with all theoretical and experimental constraints. For these planes we evaluate di-Higgs production cross sections at the (HL-)LHC with a center-of-mass energy of 13 TeV at NLO in the heavy top-quark limit with the code HPAIR. We investige in particular the process $gg \to hh$, with $h$ being the Higgs boson discovered at the LHC with a mass of about 125 GeV. The top box diagram of the loop-mediated gluon fusion process into Higgs pairs interferes with the $s$-channel exchange of the two CP-even 2HDM Higgs bosons $h$ and $H$ involving the trilinear couplings $\lambda_{hhh}$ and $\lambda_{hhH}$, respectively. Depending on the size of the involved top-Yukawa and triple Higgs couplings as well as on the mass of $H$, the contribution of the $s$-channel $H$~diagram can be dominating or be highly suppressed. We find regions of the allowed parameter space in which the di-Higgs production cross section can differ by many standard deviations from its SM prediction, indicating possible access to deviations in $\lambda_{hhh}$ from the SM value $\lambda_{\rm SM}$ and/or contributions involving $\lambda_{hhH}$. The sensitivity to $\lambda_{hhH}$ is further analyzed employing the $m_{hh}$ distributions. We demonstrate how a possible measurement of $\lambda_{hhH}$ depends on the various experimenal uncertainties. Depending on the underlying parameter space, the HL-LHC may have the option not only to detect beyond-the-Standard-Model triple Higgs couplings, but also to provide a first rough measurement of their sizes. |
| 536 | _ | _ | |a 611 - Fundamental Particles and Forces (POF4-611) |0 G:(DE-HGF)POF4-611 |c POF4-611 |f POF IV |x 0 |
| 536 | _ | _ | |a DFG project 390833306 - EXC 2121: Quantum Universe (390833306) |0 G:(GEPRIS)390833306 |c 390833306 |x 1 |
| 588 | _ | _ | |a Dataset connected to INSPIRE |
| 650 | _ | 7 | |a coupling, Higgs |2 INSPIRE |
| 650 | _ | 7 | |a gluon, fusion |2 INSPIRE |
| 650 | _ | 7 | |a potential, Higgs |2 INSPIRE |
| 650 | _ | 7 | |a dimension, 2 |2 INSPIRE |
| 650 | _ | 7 | |a CERN LHC Coll, upgrade |2 INSPIRE |
| 650 | _ | 7 | |a Higgs particle |2 INSPIRE |
| 650 | _ | 7 | |a sensitivity |2 INSPIRE |
| 650 | _ | 7 | |a new physics |2 INSPIRE |
| 650 | _ | 7 | |a GeV |2 INSPIRE |
| 650 | _ | 7 | |a benchmark |2 INSPIRE |
| 650 | _ | 7 | |a suppression |2 INSPIRE |
| 650 | _ | 7 | |a TeV |2 INSPIRE |
| 693 | _ | _ | |0 EXP:(DE-MLZ)NOSPEC-20140101 |5 EXP:(DE-MLZ)NOSPEC-20140101 |e No specific instrument |x 0 |
| 700 | 1 | _ | |a Heinemeyer, S. |0 P:(DE-H253)PIP1093340 |b 1 |e Corresponding author |
| 700 | 1 | _ | |a Mühlleitner, M. |0 M.Muhlleitner.1 |b 2 |
| 700 | 1 | _ | |a Radchenko Serdula, Kateryna |0 P:(DE-H253)PIP1102704 |b 3 |
| 856 | 4 | _ | |u https://bib-pubdb1.desy.de/record/490453/files/HTML-Approval_of_scientific_publication.html |
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| 910 | 1 | _ | |a External Institute |0 I:(DE-HGF)0 |k Extern |b 1 |6 P:(DE-H253)PIP1093340 |
| 910 | 1 | _ | |a Deutsches Elektronen-Synchrotron |0 I:(DE-588b)2008985-5 |k DESY |b 3 |6 P:(DE-H253)PIP1102704 |
| 913 | 1 | _ | |a DE-HGF |b Forschungsbereich Materie |l Matter and the Universe |1 G:(DE-HGF)POF4-610 |0 G:(DE-HGF)POF4-611 |3 G:(DE-HGF)POF4 |2 G:(DE-HGF)POF4-600 |4 G:(DE-HGF)POF |v Fundamental Particles and Forces |x 0 |
| 914 | 1 | _ | |y 2023 |
| 915 | _ | _ | |a OpenAccess |0 StatID:(DE-HGF)0510 |2 StatID |
| 915 | _ | _ | |a Creative Commons Attribution-NonCommercial-ShareAlike CC BY-NC-SA 4.0 |0 LIC:(DE-HGF)CCBYNCSA4 |2 HGFVOC |
| 915 | _ | _ | |a Published |0 StatID:(DE-HGF)0580 |2 StatID |
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| 980 | _ | _ | |a preprint |
| 980 | _ | _ | |a VDB |
| 980 | _ | _ | |a UNRESTRICTED |
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| 980 | 1 | _ | |a FullTexts |
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