Falsifying Pati-Salam models with LIGO

Peter Athron; Csaba Balázs; Tomás E. Gonzalo; Matthew Pearce

doi:10.1103/PhysRevD.109.L061303

Letter

Falsifying Pati-Salam models with LIGO

Peter Athron ^1,*, Csaba Balázs ^2,†, Tomás E. Gonzalo ^3,‡, and Matthew Pearce ^2,§

¹Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu 210023, China
²School of Physics and Astronomy, Monash University, Melbourne 3800 Victoria, Australia
³Institute for Theoretical Particle Physics (TTP), Karlsruhe Institute of Technology (KIT), 76128 Karlsruhe, Germany

^*peter.athron@njnu.edu.cn
^†csaba.balazs@monash.edu
^‡tomas.gonzalo@kit.edu
^§matthew.pearce1@monash.edu

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Phys. Rev. D 109, L061303 – Published 21 March, 2024

DOI: https://doi.org/10.1103/PhysRevD.109.L061303

Abstract

We demonstrate that existing gravitational wave data from LIGO already places constraints on well-motivated Pati-Salam models that allow the Standard Model to be embedded within grand unified theories. For the first time in these models we also constrain the parameter space by requiring that the phase transition completes, with the resulting constraint being competitive with the limits from LIGO data. Both constraints are complementary to the LHC constraints and can exclude scenarios that are much heavier than can be probed in colliders. Finally, we show that results from future LIGO runs, and the planned Einstein Telescope, will substantially increase the limits we place on the parameter space.

Physical Review D

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Falsifying Pati-Salam models with LIGO

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Falsifying Pati-Salam models with LIGO

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