[Phys-seminars] 2017-11-13 Particles and Fields Seminar

lublinm lublinm at bgu.ac.il
Mon Nov 6 13:52:45 IST 2017


Particles and Fields Seminar

 DATE: 13-11-17

 TIME: 14:00

 PLACE: Physics building (#54) room 207

TITLE: 
Signatures of Hypercharge Axions at Future Colliders

SPEAKER: 
Yael Raveh, BGU

ABSTRACT/COMMENTS: 
We devise a search for the hypercharge axion; a hypothetical pseudoscalar that couples to the weak hypercharge topological density and could potentially explain the matter/antimatter asymmetry in the observed universe. If the axion 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. The Standard Model background consists of processes producing photons and Z bosons with high transverse momenta and invariant mass equal to that of the axion. We find that for certain values of the axion mass and mass scale, 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, accessible detection range is increased significantly.


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