CERN Accelerating science

Article
Report number arXiv:2211.02390
Title Precision Measurement of Trident Production in Strong Electromagnetic Fields
Author(s) Nielsen, Christian F. (Aarhus U.) ; Holtzapple, Robert (Cal. Poly.) ; Lund, Mads M. (Aarhus U.) ; Surrow, Jeppe H. (Aarhus U.) ; Sørensen, Marc B. (Aarhus U.) ; Uggerhøj, Ulrik I. (Aarhus U.)
Collaboration NA63 Collaboration
Publication 2023-02-14
Imprint 2022-11-04
Number of pages 5
Note 4 pages, 2 figures
In: Phys. Rev. Lett. 130 (2023) 071601
DOI 10.1103/PhysRevLett.130.071601 (publication)
Subject category Particle Physics - Phenomenology ; Particle Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; NA63
Abstract We demonstrate experimentally that the trident process $e^-\rightarrow e^-e^+e^-$ in a strong external field, with a spatial extension comparable to the effective radiation length, is well understood theoretically. The experiment, conducted at CERN, probes values for the strong field parameter $\chi$ up to 2.4. Experimental data and theoretical expectations using the Local Constant Field Approximation show remarkable agreement over almost 3 orders of magnitude in yield.
Copyright/License preprint: (License: CC BY 4.0)
publication: © 2023-2025 authors (License: CC BY 4.0), sponsored by SCOAP³



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 記錄創建於2023-01-26,最後更新在2024-02-19


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