• Open Access

Probing axionlike particles with γγ final states from vector boson fusion processes at the LHC

Andrés Flórez, Alfredo Gurrola, Will Johns, Paul Sheldon, Elijah Sheridan, Kuver Sinha, and Brandon Soubasis
Phys. Rev. D 103, 095001 – Published 6 May 2021

Abstract

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=13TeV, 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 aγγ 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 10MeVma1TeV with Λ2TeV, assuming an integrated luminosity of 3000fb1. In particular, this extends the LHC sensitivity to a previously unstudied region of the ALP parameter space.

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  • Received 4 February 2021
  • Accepted 14 March 2021

DOI:https://doi.org/10.1103/PhysRevD.103.095001

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Andrés Flórez2, Alfredo Gurrola1, Will Johns1, Paul Sheldon1, Elijah Sheridan1, Kuver Sinha3, and Brandon Soubasis1

  • 1Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235, USA
  • 2Physics Department, Universidad de los Andes, Bogotá 111711, Colombia
  • 3Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019, USA

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Issue

Vol. 103, Iss. 9 — 1 May 2021

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