Beam-beam interaction in a dielectric laser accelerator electron-positron collider

We examine through numerical calculation the collision of counter-propagating trains of optically spaced electron or positron microbunches in a 1 TeV collider scenario for a dielectric laser accelerator. A time-dependent envelope equation is derived for arbitrary number of bunches in the classical l...

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Autores principales:	R. Joel England, Levi Schächter
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/6e0ce1144b49460abece4e2efc392981
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spelling	oai:doaj.org-article:6e0ce1144b49460abece4e2efc3929812021-12-03T18:08:41ZBeam-beam interaction in a dielectric laser accelerator electron-positron collider10.1103/PhysRevAccelBeams.24.1213022469-9888https://doaj.org/article/6e0ce1144b49460abece4e2efc3929812021-12-01T00:00:00Zhttp://doi.org/10.1103/PhysRevAccelBeams.24.121302http://doi.org/10.1103/PhysRevAccelBeams.24.121302https://doaj.org/toc/2469-9888We examine through numerical calculation the collision of counter-propagating trains of optically spaced electron or positron microbunches in a 1 TeV collider scenario for a dielectric laser accelerator. A time-dependent envelope equation is derived for arbitrary number of bunches in the classical limit, with inclusion of the radiation reaction force. Example parameters are examined based on a constrained luminosity relation that takes into account the bunch charge for optimal efficiency, material damage limits, and power constraints. We find that for initially identical counter-propagating Gaussian bunch trains, the periodic temporal structure leads to a peak in luminosity with number of bunches. For longer bunch trains, the enhancement then decreases inversely with number of bunches. The corresponding fractional energy loss of the beam is found to be of order 1.75%, which is reduced to 0.35% when the nonlinear radial dependence of the transverse force is included, with an average beamstrahlung parameter of 0.075, an important result considering that beamstrahlung losses are a critical concern for future TeV colliders.R. Joel EnglandLevi SchächterAmerican Physical SocietyarticleNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENPhysical Review Accelerators and Beams, Vol 24, Iss 12, p 121302 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 R. Joel England Levi Schächter Beam-beam interaction in a dielectric laser accelerator electron-positron collider
description	We examine through numerical calculation the collision of counter-propagating trains of optically spaced electron or positron microbunches in a 1 TeV collider scenario for a dielectric laser accelerator. A time-dependent envelope equation is derived for arbitrary number of bunches in the classical limit, with inclusion of the radiation reaction force. Example parameters are examined based on a constrained luminosity relation that takes into account the bunch charge for optimal efficiency, material damage limits, and power constraints. We find that for initially identical counter-propagating Gaussian bunch trains, the periodic temporal structure leads to a peak in luminosity with number of bunches. For longer bunch trains, the enhancement then decreases inversely with number of bunches. The corresponding fractional energy loss of the beam is found to be of order 1.75%, which is reduced to 0.35% when the nonlinear radial dependence of the transverse force is included, with an average beamstrahlung parameter of 0.075, an important result considering that beamstrahlung losses are a critical concern for future TeV colliders.
format	article
author	R. Joel England Levi Schächter
author_facet	R. Joel England Levi Schächter
author_sort	R. Joel England
title	Beam-beam interaction in a dielectric laser accelerator electron-positron collider
title_short	Beam-beam interaction in a dielectric laser accelerator electron-positron collider
title_full	Beam-beam interaction in a dielectric laser accelerator electron-positron collider
title_fullStr	Beam-beam interaction in a dielectric laser accelerator electron-positron collider
title_full_unstemmed	Beam-beam interaction in a dielectric laser accelerator electron-positron collider
title_sort	beam-beam interaction in a dielectric laser accelerator electron-positron collider
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/6e0ce1144b49460abece4e2efc392981
work_keys_str_mv	AT rjoelengland beambeaminteractioninadielectriclaseracceleratorelectronpositroncollider AT levischachter beambeaminteractioninadielectriclaseracceleratorelectronpositroncollider
_version_	1718373111437459456

Beam-beam interaction in a dielectric laser accelerator electron-positron collider

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