Singly differential cross sections with exchange for Ps-fragmentation

2008/08/28 by Hasi Ray, Ray, Hasi
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #General Physics (physics.gen-ph) #physics.atom-ph #physics.gen-ph

paper · pdf · doi:10.48550/arxiv.0808.3830

20 pages, 11 figures, submitted to Phys. Rev. A, August 27, 2008

arxiv created 2008/08/28 · arxiv updated 2009/12/01

Abstract

Ps ionization in Ps-atom scattering is of fundamental importance. The singly differential cross sections (SDCS) provides more accurate information to test a theory than integrated or total ionization cross section since the averaging over one parameter is not required. We evaluate the SDCS for Ps-ionization with respect to the longitudinal energy distribution of the break-up positron and electron in Ps-H and Ps-He scattering and compare them with the recently available experimental and theoretical data.

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