Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Axion assisted Schwinger effect
 
research article

Axion assisted Schwinger effect

Domcke, Valerie  
•
Ema, Yohei
•
Mukaida, Kyohei
May 3, 2021
Journal of High Energy Physics

We point out an enhancement of the pair production rate of charged fermions in a strong electric field in the presence of time dependent classical axion-like background field, which we call axion assisted Schwinger effect. While the standard Schwinger production rate is proportional to exp(-pi(m(2) + p(T)(2))/E), with m and pT denoting the fermion mass and its momentum transverse to the electric field E, the axion assisted Schwinger effect can be enhanced at large momenta to exp(- pi m(2)/E). The origin of this enhancement is a coupling between the fermion spin and its momentum, induced by the axion velocity. As a non-trivial validation of our result, we show its invariance under field redefinitions associated with a chiral rotation and successfully reproduce the chiral anomaly equation in the presence of helical electric and magnetic fields. We comment on implications of this result for axion cosmology, focussing on axion inflation and axion dark matter detection.

  • Files
  • Details
  • Metrics
Loading...
Thumbnail Image
Name

2101.05192.pdf

Type

Preprint

Version

Submitted version (Preprint)

Access type

openaccess

License Condition

Copyright

Size

4.78 MB

Format

Adobe PDF

Checksum (MD5)

04c499606ab6385ec2c305d049311696

Loading...
Thumbnail Image
Name

JHEP05(2021)285.pdf

Type

Publisher

Version

Published version

Access type

openaccess

License Condition

CC BY

Size

647.47 KB

Format

Adobe PDF

Checksum (MD5)

1f203b0ede4dd76b3c576f76a842dd35

Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés