A light dilaton at the LHC

被引：17

作者：

Ahmed, Aqeel ^{[1
,2
]}

Mariotti, Alberto ^{[1
,2
]}

Najjari, Saereh ^{[1
,2
]}

机构：

[1] Vrije Univ Brussel, Theoret Nat Kunde, Pl Laan 2, B-1050 Brussels, Belgium

[2] Vrije Univ Brussel, IIHE ELEM, Pl Laan 2, B-1050 Brussels, Belgium

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2020年 / 2020卷 / 05期

关键词：

Phenomenological Models; Phenomenology of Large extra dimensions; STANDARD MODEL; HIGGS-BOSON; MASS RANGE; SEARCH; COLLISIONS; ROOT-S=8; FLAVOR; SUSHI;

D O I：

10.1007/JHEP05(2020)093

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In this paper, we explore the possibility that a light dilaton can be the first sign of new physics at the LHC. The dilaton could emerge in approximate scale invariant UV completions of the SM as the Goldstone boson associated with the spontaneous breaking of the scale invariance. We study in detail the phenomenology of the dilaton at the LHC in the mass range of [10-300] GeV including the case where the dilaton can mix with the SM Higgs boson, leading to an interesting interplay between direct and indirect constraints. A possibility that the dilaton acts as a portal to a dark sector is also considered. As a minimal realization, the dark sector includes a dark photon lighter than the dilaton implying sizeable missing energy signatures. Several simplified benchmark models that can encode different UV completions are discussed, for which we scrutinize the current and future LHC reach.

引用

页数：35

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