Beam Beam Effects

Particle colliders are one of the main drivers for discoveries in particle physics. Their performance is usually limited by the strong electromagnetic interactions of the two beams, so-called beam-beam interactions. Due to its non-linear and dynamical nature, this force introduces severe limitations by generating collective instabilities or distorting the single particle trajectories leading to a reduction of the beam lifetime and/or a growth of the emittances. In this lecture, we illustrate the mechanisms through which these degradations of the beam quality occur as well as basic models to describe them. We thus obtain an understanding of the fundamental properties of modern colliders.

Video duration: 00:47:15

CAS - CERN Accelerator School

CAS Advanced Accelerator Physics, 6-18 November 2022, Sevrier, France

Related identifier:
- Is part of: https://indico.cern.ch/event/1126689/contributions/5069000/ (URL)

Copyright: CERN (2022)

Licence: Other (Attribution)

Contact: Noemi Caraban

Keywords: UFFAT Xavier, Particle collider, beam-beam effects, beam-beam force, beamstrahlung, head-on, long-range, hourglass, crossing angle

Version: LECTURES-VIDEO-2026-448-001

Status: Active

Date created: 2022-11-16

Date published: 2022-11-16

Authors: Noemi Caraban

Contributors: Buffat Xavier


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