1.
Phys Rev Lett
; 130(7): 071601, 2023 Feb 17.
Artículo
en Inglés
| MEDLINE
| ID: mdl-36867827
RESUMEN
We demonstrate experimentally that the trident process e^{-}âe^{-}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 χ 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.