Medium Effects in Kaon and Antikaon Production in Nuclear Collisions at Subthreshold Beam Energies
Nuclear Experiment
2008-11-26 v1
Abstract
Production cross sections of K and K mesons have been measured in C+C collisions at beam energies per nucleon below and near the nucleon-nucleon threshold. At a given beam energy, the spectral slopes of the K mesons are significantly steeper than the ones of the K mesons. The excitation functions for K and K mesons nearly coincide when correcting for the threshold energy. In contrast, the K yield exceeds the K yield by a factor of about 100 in proton-proton collisions at beam energies near the respective nucleon-nucleon thresholds.
Keywords
Cite
@article{arxiv.nucl-ex/9901005,
title = {Medium Effects in Kaon and Antikaon Production in Nuclear Collisions at Subthreshold Beam Energies},
author = {F. Laue and C. Sturm and I. Boettcher and M. Debowski and A. Foerster and E. Grosse and P. Koczon and B. Kohlmeyer and M. Mang and L. Naumann and H. Oeschler and F. Puehlhofer and E. Schwab and P. Senger and Y. Shin and J. Speer and H. Stroebele and G. Surowka and F. Uhlig and A. Wagner and W. Walus},
journal= {arXiv preprint arXiv:nucl-ex/9901005},
year = {2008}
}
Comments
Accepted for publication in Phys. Rev. Lett