Light quark Yukawas in triboson final states
Abstract Triple heavy vector boson production, pp → VVV (V = W, Z), has recently been observed for the first time. We propose that precision measurements of this process provide an excellent probe of the first generation light quark Yukawa couplings. Modified quark interactions with the off-shell Hi...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-04-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP04(2021)023 |
| _version_ | 1818652762744815616 |
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| author | Adam Falkowski Sanmay Ganguly Phillippe Gras Jose Miguel No Kohsaku Tobioka Natascia Vignaroli Tevong You |
| author_facet | Adam Falkowski Sanmay Ganguly Phillippe Gras Jose Miguel No Kohsaku Tobioka Natascia Vignaroli Tevong You |
| author_sort | Adam Falkowski |
| collection | DOAJ |
| description | Abstract Triple heavy vector boson production, pp → VVV (V = W, Z), has recently been observed for the first time. We propose that precision measurements of this process provide an excellent probe of the first generation light quark Yukawa couplings. Modified quark interactions with the off-shell Higgs in this process lead to a rapid growth of the partonic cross sections with energy, which manifests in an enhanced p T distribution of the final state leptons and quarks. We quantify this effect and estimate the present and future 2σ sensitivity to the up, down, and strange Yukawas. In particular, we find that HL-LHC can reach O 400 $$ \mathcal{O}(400) $$ sensitivity to the down Yukawa relative to the Standard Model value, improving the current sensitivity in this process by a factor of 10, and which can be further improved to O 30 $$ \mathcal{O}(30) $$ at FCC-hh. This is competitive with and complementary to constraints from global fits and other on-shell probes of the first generation Yukawas. The triboson sensitivity at HL-LHC corresponds to probing dimension-6 SMEFT operators suppressed by an O 1 $$ \mathcal{O}(1) $$ TeV scale, similarly to other LHC Higgs probes. |
| first_indexed | 2024-12-17T02:27:10Z |
| format | Article |
| id | doaj.art-1ed76c11a34a4950889c18fd17d11591 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-17T02:27:10Z |
| publishDate | 2021-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-1ed76c11a34a4950889c18fd17d115912022-12-21T22:07:04ZengSpringerOpenJournal of High Energy Physics1029-84792021-04-012021412510.1007/JHEP04(2021)023Light quark Yukawas in triboson final statesAdam Falkowski0Sanmay Ganguly1Phillippe Gras2Jose Miguel No3Kohsaku Tobioka4Natascia Vignaroli5Tevong You6Université Paris-Saclay, CNRS/IN2P3Department of Particle Physics & Astrophysics, Weizmann Institute of ScienceCEA Institut de Recherche sur les lois Fondamentales de l’Univers, Université Paris-SaclayDepartamento de Física Teórica, Universidad Autónoma de MadridDepartment of Physics, Florida State UniversityDipartimento di Fisica “E. Fermi”, Università di Pisa, and INFN PisaCERN, Theoretical Physics DepartmentAbstract Triple heavy vector boson production, pp → VVV (V = W, Z), has recently been observed for the first time. We propose that precision measurements of this process provide an excellent probe of the first generation light quark Yukawa couplings. Modified quark interactions with the off-shell Higgs in this process lead to a rapid growth of the partonic cross sections with energy, which manifests in an enhanced p T distribution of the final state leptons and quarks. We quantify this effect and estimate the present and future 2σ sensitivity to the up, down, and strange Yukawas. In particular, we find that HL-LHC can reach O 400 $$ \mathcal{O}(400) $$ sensitivity to the down Yukawa relative to the Standard Model value, improving the current sensitivity in this process by a factor of 10, and which can be further improved to O 30 $$ \mathcal{O}(30) $$ at FCC-hh. This is competitive with and complementary to constraints from global fits and other on-shell probes of the first generation Yukawas. The triboson sensitivity at HL-LHC corresponds to probing dimension-6 SMEFT operators suppressed by an O 1 $$ \mathcal{O}(1) $$ TeV scale, similarly to other LHC Higgs probes.https://doi.org/10.1007/JHEP04(2021)023Higgs PhysicsQuark Masses and SM Parameters |
| spellingShingle | Adam Falkowski Sanmay Ganguly Phillippe Gras Jose Miguel No Kohsaku Tobioka Natascia Vignaroli Tevong You Light quark Yukawas in triboson final states Journal of High Energy Physics Higgs Physics Quark Masses and SM Parameters |
| title | Light quark Yukawas in triboson final states |
| title_full | Light quark Yukawas in triboson final states |
| title_fullStr | Light quark Yukawas in triboson final states |
| title_full_unstemmed | Light quark Yukawas in triboson final states |
| title_short | Light quark Yukawas in triboson final states |
| title_sort | light quark yukawas in triboson final states |
| topic | Higgs Physics Quark Masses and SM Parameters |
| url | https://doi.org/10.1007/JHEP04(2021)023 |
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