Decay Anisotropy of $e^+e^-$ Sources from $pN$ and $pd$ collisions
Nuclear Theory
2009-10-28 v1
Abstract
A full calculation of lepton-pair angular characteristics is carried out for pairs created in , and collisions at intermediate energies. It is demonstrated that the proposed new observable, the dilepton decay anisotropy, quite sensitively changes for different sources and may be useful for their disentangling. The relevance of the dilepton decay anisotropy is shown in the context of a puzzling energy behavior for the ratio of the lepton yield from to reactions as observed at the BEVALAC.
Cite
@article{arxiv.nucl-th/9508043,
title = {Decay Anisotropy of $e^+e^-$ Sources from $pN$ and $pd$ collisions},
author = {E. L. Bratkovskaya and W. Cassing and U. Mosel and O. V. Teryaev and A. I. Titov and V. D. Toneev},
journal= {arXiv preprint arXiv:nucl-th/9508043},
year = {2009}
}
Comments
8 pages, LaTeX, plus 5 postscript figures tarred, compressed and uuencoded in separate file