Mixing Particle Production for Relaxion Mechanism

Abstract

We consider the production of two heavy gauge bosons as a relaxation stopping mechanism. In this work, we analyse the conditions for a tachyonic mode for a linear combination of gauge bosons and show that the criteria are significantly different than the single gauge boson case. Moreover, the implementation of the mechanism on the $U(1{)}^{\prime }$ model is demonstrated. We discuss various constraints for the relaxion mechanism. The phenomenology of the heavy gauge boson is also explored. We finally show a benchmark point of parameter space considering all constraints from relaxion and the $U(1{)}^{\prime }$ mixing sector.

19 pages, 5 figures, 1 table

References in corpus (10)

• Secluded U(1) below the weak scale
• Collider Probes of Axion-Like Particles
• Relaxation from particle production
• Chiral Anomaly, Schwinger Effect, Euler-Heisenberg Lagrangian, and application to axion inflation
• UV complete composite Higgs models
• Thermalized Axion Inflation
• Constraints on Relaxion Windows
• Relaxion: A Landscape Without Anthropics
• Gravitational Wave Echo of Relaxion Trapping
• Gravitational tests of electroweak relaxation

Cited by in corpus (1)

• Attracting the Electroweak Scale to a Tachyonic Trap