Searching for Axionlike Particles in Flavor-Changing Neutral Current Processes

Eder Izaguirre, Tongyan Lin, and Brian Shuve
Phys. Rev. Lett. 118, 111802 – Published 15 March 2017
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Abstract

We propose new searches for axionlike particles (ALPs) produced in flavor-changing neutral current (FCNC) processes. This proposal exploits the often-overlooked coupling of ALPs to W± bosons, leading to FCNC production of ALPs even in the absence of a direct coupling to fermions. Our proposed searches for resonant ALP production in decays such as BK(*)a, aγγ, and Kπa, aγγ could greatly improve upon the current sensitivity to ALP couplings to standard model particles. We also determine analogous constraints and discovery prospects for invisibly decaying ALPs.

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  • Received 22 December 2016

DOI:https://doi.org/10.1103/PhysRevLett.118.111802

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Eder Izaguirre1, Tongyan Lin2,3, and Brian Shuve4

  • 1Brookhaven National Laboratory, Upton, New York 11973, USA
  • 2Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 3Berkeley Center for Theoretical Physics, University of California, Berkeley, California 94720, USA
  • 4SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA

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Issue

Vol. 118, Iss. 11 — 17 March 2017

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