Wednesday, April 3, 2013

1001.3467 (A. I. Ahmadov et al.)

Two-pion production in electron-polarized proton scattering    [PDF]

A. I. Ahmadov, E. A. Kuraev, Yu. M. Bystritskiy
The process of two pion production in the electron-polarized proton scattering is investigated. In the Weizs\"acker-Williams approximation the differential spectral distributions and the spin-momentum correlations are considered. The spin correlation effects caused by $\rho$-meson widths are estimated to be of an order of several per cent. Both channels of the $\pi^+\pi^-$ and $\pi^+\pi^0$ creation are considered. The effects of intermediate excited baryons are not considered. The spectral distributions on pion energy fractions in polarized and unpolarized cases are presented analytically and numerically.
View original: http://arxiv.org/abs/1001.3467

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