Abstract

We discuss the electron-optical properties of a toroidal magnetic sector spectrometer and its suitablilty for electron-positron pair spectroscopy in relativistic ion-atom collisions in the future HESR storage ring at FAIR. With the simultaneous mapping of electrons and positrons and geometric invariants in the lepton trajectorties this instrument offers a very high efficiency for studies of vector momentum correlation in free-free pair production.

Details

Title
Coincident mapping of e+ and e− from free-free pair production in a magnetic toroidal lepton spectrometer
Author
Hagmann, S 1 ; Hillenbrand, P M 2 ; Litvinov, Yu A 3 ; Spillmann, U 3 ; Stöhlker, Th 4 

1  GSI Helmholtzzentrum Darmstadt, 64291 Darmstadt, Germany; Inst. für Kernphysik, Universität Frankfurt, 60438 Frankfurt, Germany 
2  GSI Helmholtzzentrum Darmstadt, 64291 Darmstadt, Germany; Universität Giessen, 35392 Giessen, Germany 
3  GSI Helmholtzzentrum Darmstadt, 64291 Darmstadt, Germany 
4  GSI Helmholtzzentrum Darmstadt, 64291 Darmstadt, Germany; Helmholtz Institut Jena, 07743 Jena, Germany; Fakultät für Physik, Universität Jena, 07743 Jena, Germany 
Publication year
2020
Publication date
Jan 2020
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1088/1742-6596/1412/23/232004
ProQuest document ID
2568326775
Copyright
© 2020. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.