Signatures of hypercharge axions at contemporary and future colliders

Ram Brustein, Yael Raveh

Research output: Contribution to journalArticlepeer-review


We investigate the possible detection of the hypercharge axion (HCA) in colliders. The HCA is a hypothetical pseudoscalar that couples to weak hypercharge topological density and could potentially explain the dominance of matter over antimatter in the observable universe. If the HCA exists, it can be produced in colliders via vector boson fusion or in association with a photon or with a Z boson, and detected by looking for its decay into photons or Z bosons. We find that for certain values of the HCA mass and coupling scales, both of the order of a TeV, existing data from the Large Hadron Collider (LHC) can already put interesting constraints, and in future colliders, such as the High Luminosity LHC, the accessible detection range is increased significantly.

Original languageAmerican English
Article number055010
JournalPhysical review D
Issue number5
StatePublished - 10 Sep 2018

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Signatures of hypercharge axions at contemporary and future colliders'. Together they form a unique fingerprint.

Cite this