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Spin-polarization response functions in high-energy (e→,e′,p→) reactions

Ito, Hiroshi and Koonin, S. E. and Seki, Ryoichi (1997) Spin-polarization response functions in high-energy (e→,e′,p→) reactions. Physical Review C, 56 (6). pp. 3231-3241. ISSN 0556-2813. http://resolver.caltech.edu/CaltechAUTHORS:ITOprc97

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Abstract

Spin-polarization response functions for the high-energy (e→,e′p→) reaction are examined by computing all 18 response functions for proton kinetic energies of 0.515 and 3.170 GeV from an 16O target. The Dirac eikonal formalism is applied to account for the final-state interactions. It is found to yield the response functions in good agreement with those calculated by partial-wave expansion at 0.5 GeV. We identify the response functions that are dominantly determined by the spin-orbit potential in the final-state interaction. Dependence on the Dirac- or Pauli-type current of the nucleon is investigated in the helicity-dependent response functions, and the normal-component polarization of the knocked-out proton is computed.


Item Type:Article
Additional Information:©1997 The American Physical Society Received 3 June 1997 We would like to acknowledge Professor J. W. Van Orden for providing response functions calculated by the partial-wave decomposition method. R.S. thanks Dr. W. R. Greenberg for clarifying symmetry properties of the response functions and G. A. Miller for useful comments which have improved the manuscript. We have benefited from a Dirac eikonal calculation of the high-energy (eW ,e8p) reaction by Dr. A. Allder. This work was supported by the National Science Foundation grant at Caltech (PHY-9412818 and PHY-9420470), and by the U.S. Department of Energy grant at George Washington Univ. (DE-FG02-95-ER40907) and at CSUN (DE-FG03-87ER40347).
Record Number:CaltechAUTHORS:ITOprc97
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:ITOprc97
Alternative URL:http://dx.doi.org/10.1103/PhysRevC.56.3231
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5439
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:17 Oct 2006
Last Modified:26 Dec 2012 09:05

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