6533b82bfe1ef96bd128cd36

RESEARCH PRODUCT

Physical mechanism of the linear beam-size effect at colliders

G. L. KotkinValery G. SerboK. Melnikov

subject

PhysicsNuclear and High Energy PhysicsMuonLogarithmScatteringBremsstrahlungFOS: Physical sciencesHERANuclear physicsMechanism (engineering)Beam sizeHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Physics::Accelerator PhysicsHigh Energy Physics::ExperimentBeam (structure)

description

We present qualitative but precise description of the linear beam-size effect predicted for the processes in which unstable but long--living particles collide with each other. We derive physically pronounced equation for the events rate which proves that the linear beam-size effect corresponds to the scattering of one beam of particles on the decay products of the other. We compare this linear beam-size effect with the known logarithmic beam-size effect measured in the experiments on a single bremsstrahlung at VEPP-4 and HERA.

10.1103/physrevd.54.3289http://arxiv.org/abs/hep-ph/9603352