Physical mechanism of the linear beam-size effect at colliders

Abstract

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.

arXiv comment12 pages, LaTeX, 1 figure

References in corpus (2)

• Observation of the beam-size effect at HERA
• New type of beam size effect and the $W$-boson production at ${\mu }^{+}{\mu }^{-}$ colliders

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