FIZIKA B 8 (1999) 1, 101-106

LETTER TO THE EDITOR

MEASURING LINEAR POLARIZATION OF REAL PHOTONS

YU. P. PERESUN'KO, V. F. BOLDYSHEV and E. A. VINOKUROV

NSC KIPT, Kharkov, Ukraine

Received 10 February 1999; Accepted 7 July 1999

A survey of known methods of analyzing linear polarization of high-energy photons is presented. The methods of pair photoproduction in single crystals and in amorphous targets are briefly discussed. The method of measurement of photon linear polarization using azimuthal asymmetry of the recoil electrons from pair photoproduction on electron (triplet photoproduction process) is considered in details. The optimum region of kinematic parameters of emitted particles in which analyzing power increases is discussed. Possibility of using CLAS for the measurement of linear photon polarization by analyzing the recoil-electron distribution in triplet photoproduction process (when shielding magnet is turned off) is considered.

PACS numbers: 13.88.+e, 29.27.Hj, 29.90.+r
UDC 539.122

Keywords: high-energy photons, linear polarization, azimuthal asymmetry of the recoil electrons from pair photoproduction, analyzing power

Copyright by The Croatian Physical Society
For problems or questions please contact [email protected]