Deppisch, F;
Liu, W;
Kulkarni, S;
(2019)
Searching for a light Z′ through Higgs production at the LHC.
Physical Review D: Particles, Fields, Gravitation and Cosmology
, 100
(11)
, Article 115023. 10.1103/PhysRevD.100.115023.
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Abstract
We investigate the potential of LHC resonance searches in leptonic final states to probe the Z′ in the minimal U(1)B−L model. Considering the current constraints on the Z′ in terms of its mass mZ′ and the associated gauge coupling gB−L as well as constraints in the Higgs sector, we analyze the potential of dilepton and four lepton final states for Z′ production. This includes Drell-Yan production, Higgs mediated decays and final state radiation processes concentrating only on the ATLAS and CMS detectors at the LHC. We show that the four-lepton final state is sensitive to mZ′ as low as 0.25 GeV. Furthermore, setting the Higgs mixing to sinα = 0.3, this final state has a strong sensitivity and it probes regions of parameter space where the Z′ is long-lived. We demonstrate the sensitivity at the High Luminosity LHC and comment on the potential of probing displaced vertices due to long-lived Z′. Finally, we also comment on the strength of Z′ and Higgs mediated heavy neutrino processes by taking into account the constraints derived.
| Type: | Article |
|---|---|
| Title: | Searching for a light Z′ through Higgs production at the LHC |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.100.115023 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.100.115023 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10087888 |
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