0000000000672731
AUTHOR
Valery G. Serbo
Physical mechanism of the linear beam-size effect at colliders
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.
Erratum to: “Processes with a t-channel singularity in the physical region: finite beam sizes make cross sections finite”
This affects the normalization of the “non-standard” cross-section, increasing it by thesame factor of two. As a consequence, Eq. (47), Fig. 3 and the estimate of the number ofneutrinos after Eq. (47) is modified accordingly.We are grateful to C. Dams and R. Kleiss for correspondencethat helped to uncoverthiserror.