Αρχική Σελίδα > Experimental investigation of strong field trident production |
Article | |
Title | Experimental investigation of strong field trident production |
Author(s) |
Esberg, J (Aarhus U.) ; Kirsebom, K (Aarhus U.) ; Knudsen, H (Aarhus U.) ; Thomsen, H D (Aarhus U.) ; Uggerhøj, E (Aarhus U.) ; Uggerhøj, U I (Aarhus U.) ; Sona, P (Florence U.) ; Mangiarotti, A (Coimbra U.) ; Ketel, T J (Vrije U., Amsterdam) ; Dizdar, A (Istanbul U.) ; Dalton, M M (Virginia U.) ; Ballestrero, S (Johannesburg U.) ; Connell, S H (Johannesburg U.) |
Publication | 2010 |
In: | Phys. Rev. D 82 (2010) 072002 |
DOI | 10.1103/PhysRevD.82.072002 |
Subject category | Particle Physics - Experiment |
Accelerator/Facility, Experiment | CERN SPS ; NA63 |
Abstract | We show by experiment that an electron impinging on an electric field that is of critical magnitude in its rest frame, may produce an electron-positron pair. Our measurements address higher-order QED, using the strong electric fields obtainable along particular crystallographic directions in single crystals. For the amorphous material our data are in good agreement with theory, whereas a discrepancy with theory on the magnitude of the trident enhancement is found in the precisely aligned case where the strong electric field acts. |