Parity nonconserving two-pion exchange in elastic proton-proton scattering

被引：0
作者：
J. A. Niskanen
T. M. Partanen
M. J. Iqbal
机构：
[1] University of Helsinki,Department of Physical Sciences
[2] University of British Columbia,Department of Physics and Astronomy
来源：
The European Physical Journal A | 2008年 / 36卷
关键词：
11.30.Er Charge conjugation, parity, time reversal, and other discrete symmetries; 13.75.Cs Nucleon-nucleon interactions (including antinucleons, deuterons, etc.); 24.70.+s Polarization phenomena in reactions; 25.40.Cm Elastic proton scattering;
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摘要：
Parity nonconserving two-pion exchange in elastic ¯pp scattering is investigated in the presence of phenomenological strong distortions in various models. Parity violation is included in the NNπ vertex considering NN and NΔ(1232) intermediate states in box and crossed box diagrams. Using the derived parity nonconserving two-pion exchange potential we calculate the longitudinal analyzing power ¯L in elastic pp scattering. The predicted effect is of the same order as vector meson exchanges.
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