تقرير
Light-quark Yukawa couplings from off-shell Higgs production
| العنوان: | Light-quark Yukawa couplings from off-shell Higgs production |
|---|---|
| المؤلفون: | Balzani, Elisa, Gröber, Ramona, Vitti, Marco |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology |
| الوصف: | Yukawa couplings of the first quark generation are notoriously difficult to constrain due to their small values within the Standard Model. Here we propose Higgs off-shell production, with the Higgs boson decaying to four leptons, as a probe of the up- and down-quark Yukawa couplings. Using kinematic discriminants similar to the ones employed in the Higgs width measurements we find that the down (up) Yukawa coupling can be constrained to a factor of 156 (260) times its Standard Model value at the high-luminosity LHC assuming only experimental systematic uncertainties. Off-shell Higgs production hence provides better sensitivity to the first-generation quark Yukawa couplings with respect to other probes such as Higgs+jet or Higgs pair production. Comment: 24 pages, 12 figures; comments and clarifications added, conclusions improved; version accepted for publication in JHEP |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2304.09772 |
| رقم الأكسشن: | edsarx.2304.09772 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |