High $P_T$ Higgs excess as a signal of non-local QFT at the LHC
| Autor: | Hsin-yeh Wu, Stathes Paganis, Rosy Nicolaidou, You-ying Li, Xing-Fu Su, Min Chen |
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| Přispěvatelé: | Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Particle physics
interpretation of experiments: CERN LHC Coll Physics and Astronomy (miscellaneous) Scale (ratio) FOS: Physical sciences QC770-798 Fixed point Astrophysics 29.85.Fj 01 natural sciences Standard Model beta function High Energy Physics - Phenomenology (hep-ph) Nuclear and particle physics. Atomic energy. Radioactivity 0103 physical sciences radiative correction field theory: nonlocal TeV 14.80.Bn 010306 general physics Engineering (miscellaneous) Boson Physics Large Hadron Collider 010308 nuclear & particles physics background High Energy Physics::Phenomenology scaling effect: nonlocal Scale invariance sensitivity ghost QB460-466 Higgs particle: boosted particle High Energy Physics - Phenomenology fixed point Higgs particle: mass Phase space [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] Higgs boson kinematics: phase space vector boson: heavy |
| Zdroj: | Eur.Phys.J.C Eur.Phys.J.C, 2021, 81, pp.796. ⟨10.1140/epjc/s10052-021-09577-9⟩ European Physical Journal European Physical Journal C: Particles and Fields, Vol 81, Iss 9, Pp 1-8 (2021) Eur.Phys.J.C, 2021, 81 (9), pp.796. ⟨10.1140/epjc/s10052-021-09577-9⟩ |
| DOI: | 10.1140/epjc/s10052-021-09577-9⟩ |
| Popis: | Non-local extensions of the Standard Model with a non-locality scale $\Lambda_{NL}$ have the effect of smearing the pointlike vertices of the Standard Model. At energies significantly lower than $\Lambda_{NL}$ vertices appear pointlike, while beyond this scale all beta functions vanish and all couplings approach a fixed point leading to scale invariance. Non-local SM extensions are ghost free, with the non-locality scale serving as an effective cutoff to radiative corrections of the Higgs mass. We argue that the data expected to be collected at the LHC phase 2 will have a sensitivity to non-local effects originating from a non-locality scale of a few TeV. Using an infinite derivative prescription, we study modifications to heavy vector-boson cross sections that can lead to an enhanced production of boosted Higgs bosons in a region of the kinematic phase space where the SM background is very small. Comment: Published in EPJC |
| Databáze: | OpenAIRE |
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