Open AccessCoincident mapping of e+ and e− from free-free pair production in a magnetic toroidal lepton spectrometer
Author(s) -
S. Hagmann,
P.M. Hillenbrand,
Yu. A. Litvinov,
U. Spillmann,
Th. Stöhlker
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1412/23/232004
Subject(s) - lepton , physics , positron , pair production , spectrometer , atomic physics , electron , toroid , spectroscopy , storage ring , nuclear physics , ion , momentum (technical analysis) , production (economics) , atom (system on chip) , plasma , optics , beam (structure) , quantum mechanics , economics , macroeconomics , finance , computer science , embedded system
Synopsis 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.