Graviton Resonances in E+ E- -> MU+ MU- at Linear Colliders with   Beamstrahlung and ISR Effects
  Electromagnetic radiation emitted by the colliding beams is expected to play an important role at the next generation of high energy e^+ e^- linear collider(s). Focusing on the simplest process e+e- -> mu+ mu-, we show that radiative effects like initial state radiation (ISR) and beamstrahlung can lead to greatly-enhanced signals for resonant graviton modes of the Randall-Sundrum model. 
Rohini M. Godbole, Santosh Kumar Rai, Sreerup Raychaudhuri