Detecting a {\mu}{\tau}-philic Z' boson via photon initiated processes at the LHC

Understand

Discrepancy between the measured value and the Standard Model prediction of the muon anomalous magnetic moment is a possible hint for new physics.

• A $Z^\prime$ particle with $\mu\tau$ flavor violating couplings can give a large contribution to the muon anomalous magnetic moment due to the $\tau$ mass enhancement at the one-loop level, and is known to explain the above discrepancy.
• In this paper, we study the potential of the Large Hadron Collider (LHC) for detecting such a $Z^\prime$ boson via the $p p \to\mu^-\mu^-\tau^+\tau^+ $ process.
• Earlier studies in the literature only considered the production channel with quark initial states ($p p \to q \bar q \to\mu^-\mu^-\tau^+\tau^+ $).