RECENT MEASUREMENTS OF THE BEAM-BEAM INTERACTION AT PEP-II*

Le résumé fourni par la source

The beam-beam interaction is one of the performance limitations at PEP-II. The peak luminosity in PEP-II has reached 4.6x1033/cm2/s with 800 bunches with a positron current of 1.77 A and an electron current of 1.07 A. The beam-beam tune shift limits have exceeded 0.07 horizontally and 0.03 vertically. A model of the luminosity with current using the measured beam sizes has been developed. Studies are underway to increase the luminosity toward 2 x 1034/cm2/s and beyond by increasing the number of bunches, raising the beam currents, lowering the betas at the interaction points, and shortening the bunch lengths[1].

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.