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Probing axionlike particles with $\gamma\gamma$ final states from vector boson fusion processes at the LHC
We perform a feasibility study to search for axionlike particles (ALPs) using vector boson fusion (VBF) processes at the LHC. We work in an effective field theory framework with a cutoff scale Λ and ALP mass ma, and assume that ALPs couple to photons with strength ∝1/Λ. Assuming proton-proton collis...
Autores principales: | , , , , , , |
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Lenguaje: | eng |
Publicado: |
2021
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.103.095001 http://cds.cern.ch/record/2766860 |
_version_ | 1780971241367142400 |
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author | Flórez, Andrés Gurrola, Alfredo Johns, Will Sheldon, Paul Sheridan, Elijah Sinha, Kuver Soubasis, Brandon |
author_facet | Flórez, Andrés Gurrola, Alfredo Johns, Will Sheldon, Paul Sheridan, Elijah Sinha, Kuver Soubasis, Brandon |
author_sort | Flórez, Andrés |
collection | CERN |
description | We perform a feasibility study to search for axionlike particles (ALPs) using vector boson fusion (VBF) processes at the LHC. We work in an effective field theory framework with a cutoff scale Λ and ALP mass ma, and assume that ALPs couple to photons with strength ∝1/Λ. Assuming proton-proton collisions at s=13 TeV, we present the total VBF ALP production cross sections, ALP decay widths and lifetimes, and relevant kinematic distributions as a function of ma and Λ. We consider the a→γγ decay mode to show that the requirement of an energetic diphoton pair combined with two forward jets with large dijet mass and pseudorapidity separation can significantly reduce the Standard Model backgrounds, leading to a 5σ discovery reach for 10 MeV≲ma≲1 TeV with Λ≲2 TeV, assuming an integrated luminosity of 3000 fb-1. In particular, this extends the LHC sensitivity to a previously unstudied region of the ALP parameter space. |
id | cern-2766860 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2021 |
record_format | invenio |
spelling | cern-27668602023-10-19T02:21:35Zdoi:10.1103/PhysRevD.103.095001doi:10.1103/PhysRevD.103.095001http://cds.cern.ch/record/2766860engFlórez, AndrésGurrola, AlfredoJohns, WillSheldon, PaulSheridan, ElijahSinha, KuverSoubasis, BrandonProbing axionlike particles with $\gamma\gamma$ final states from vector boson fusion processes at the LHChep-phParticle Physics - PhenomenologyWe perform a feasibility study to search for axionlike particles (ALPs) using vector boson fusion (VBF) processes at the LHC. We work in an effective field theory framework with a cutoff scale Λ and ALP mass ma, and assume that ALPs couple to photons with strength ∝1/Λ. Assuming proton-proton collisions at s=13 TeV, we present the total VBF ALP production cross sections, ALP decay widths and lifetimes, and relevant kinematic distributions as a function of ma and Λ. We consider the a→γγ decay mode to show that the requirement of an energetic diphoton pair combined with two forward jets with large dijet mass and pseudorapidity separation can significantly reduce the Standard Model backgrounds, leading to a 5σ discovery reach for 10 MeV≲ma≲1 TeV with Λ≲2 TeV, assuming an integrated luminosity of 3000 fb-1. In particular, this extends the LHC sensitivity to a previously unstudied region of the ALP parameter space.We perform a feasibility study to search for axion-like particles (ALPs) using vector boson fusion (VBF) processes at the LHC. We work in an effective field theory framework with cutoff scale $\Lambda$ and ALP mass $m_{a}$, and assume that ALPs couple to photons with strength $\propto 1/\Lambda$. Assuming proton-proton collisions at $\sqrt{s} = 13$ TeV, we present the total VBF ALP production cross sections, ALP decay widths and lifetimes, and relevant kinematic distributions as a function of $m_{a}$ and $\Lambda$. We consider the $a\to\gamma\gamma$ decay mode to show that the requirement of an energetic diphoton pair combined with two forward jets with large dijet mass and pseudorapidity separation can significantly reduce the Standard Model backgrounds, leading to a $5\sigma$ discovery reach for $10 \text{ MeV} \lesssim m_{a} \lesssim 1$ TeV with $\Lambda \lesssim 2$ TeV, assuming an integrated luminosity of 3000 fb$^{-1}$. In particular, this extends the LHC sensitivity to a previously unstudied region of the ALP parameter space.arXiv:2101.11119oai:cds.cern.ch:27668602021-01-26 |
spellingShingle | hep-ph Particle Physics - Phenomenology Flórez, Andrés Gurrola, Alfredo Johns, Will Sheldon, Paul Sheridan, Elijah Sinha, Kuver Soubasis, Brandon Probing axionlike particles with $\gamma\gamma$ final states from vector boson fusion processes at the LHC |
title | Probing axionlike particles with $\gamma\gamma$ final states from vector boson fusion processes at the LHC |
title_full | Probing axionlike particles with $\gamma\gamma$ final states from vector boson fusion processes at the LHC |
title_fullStr | Probing axionlike particles with $\gamma\gamma$ final states from vector boson fusion processes at the LHC |
title_full_unstemmed | Probing axionlike particles with $\gamma\gamma$ final states from vector boson fusion processes at the LHC |
title_short | Probing axionlike particles with $\gamma\gamma$ final states from vector boson fusion processes at the LHC |
title_sort | probing axionlike particles with $\gamma\gamma$ final states from vector boson fusion processes at the lhc |
topic | hep-ph Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1103/PhysRevD.103.095001 https://dx.doi.org/10.1103/PhysRevD.103.095001 http://cds.cern.ch/record/2766860 |
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