MD 400: LHC emittance growth in presence of an external source of noise during collision

The interplay between head-on beam-beam interaction and external sources of noise can be a significant source of emittance growth, especially when considering large beam-beam tune shifts as for the HL-LHC upgrade project. In this experiment the emittance growth of colliding bunches with different br...

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Detalles Bibliográficos
Autores principales: Barranco Garcia, Javier, Buffat, Xavier, Pieloni, Tatiana, Tambasco, Claudia, Trad, Georges, Valuch, Daniel, Betz, Michael, Wendt, Manfred, Pojer, Mirko, Solfaroli Camillocci, Matteo, Salvachua Ferrando, Belen Maria, Fuchsberger, Kajetan, Albert, Markus, Qiang, Ji
Lenguaje:eng
Publicado: 2016
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2125228
Descripción
Sumario:The interplay between head-on beam-beam interaction and external sources of noise can be a significant source of emittance growth, especially when considering large beam-beam tune shifts as for the HL-LHC upgrade project. In this experiment the emittance growth of colliding bunches with different brightness and therefore different beam-beam parameters in the presence of an external white noise source with different amplitudes is measured for different gains of the transverse feedback.

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