Unparticle Self-Interactions at the Large Hadron Collider

Understand

We investigate the effect of unparticle self-interactions at the Large Hadron Collider (LHC).

• Especially, we discuss the three-point correlation function, which is determined by conformal symmetry up to a constant, and study its relation to processes with four-particle final states.
• These processes could be used as a favorable way to look for unparticle physics, and for weak enough couplings to the Standard Model, even the only way.
• We find updated upper bounds on the cross sections for unparticle-mediated 4 gamma final states at the LHC and novel upper bounds for the corresponding 2 gamma 2l and 4l final states.