Subthreshold K+ production in deuteron and alpha induced nuclear reactions
Nuclear Experiment
2007-05-23 v1
Abstract
Double differential cross sections have been measured for pi+ and K+ emitted around midraidity in d+A and He+A collisions at a beam kinetic energy of 1.15 GeV/nucleon. The total pi+ yield increases by a factor of about 2 when using an alpha projectile instead of a deuteron whereas the K+ yield increases by a factor of about 4. According to transport calculations, the K+ enhancement depends both on the number of hadron-hadron collisions and on the energy available in those collisions: their center-of-mass energy increases with increasing number of projectile nucleons.
Keywords
Cite
@article{arxiv.nucl-ex/9709002,
title = {Subthreshold K+ production in deuteron and alpha induced nuclear reactions},
author = {M. Debowski and P. Senger and M. Boivin and Y. LeBornec and P. Courtat and R. Gacougnolle and E. Grosse and S. Kabana and T. Kirchner and P. Koczon and M. Mang and E. Schwab and B. Tatischeff and A. Wagner and W. Walus and N. Willis and G. Wolf and R. Wurzinger and J. Yonnet},
journal= {arXiv preprint arXiv:nucl-ex/9709002},
year = {2007}
}