Virtual axion-like particle Complement to Euler-Heisenberg-Schwinger action

Stefan Evans, Johann Rafelski

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We modify action in an external electromagnetic field to include effects of virtual axion-like particle (ALP) excitations. A measurable addition to QED-Euler-Heisenberg-Schwinger (EHS) action is obtained and incorporated into experimental constraints placed on ALP mass and coupling to two photons. The regime of these constraints in which the ALP vacuum effect surpasses the EHS effect is characterized. We show that probing of the virtual vacuum effect offers an alternative method in search for physics related to ALPs.

Original languageEnglish (US)
Pages (from-to)331-334
Number of pages4
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatePublished - Apr 10 2019

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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