TY - JOUR
T1 - Subthreshold K+ production in deuteron and alpha induced nuclear reactions
AU - Dȩbowski, M.
AU - Senger, P.
AU - Boivin, M.
AU - Le Bornec, Y.
AU - Courtat, P.
AU - Gacougnolle, R.
AU - Grosse, E.
AU - Kabana, S.
AU - Kirchner, T.
AU - Koczoń, P.
AU - Mang, M.
AU - Schwab, E.
AU - Tatischeff, B.
AU - Wagner, A.
AU - Waluś, W.
AU - Willis, N.
AU - Wolf, G.
AU - Wurzinger, R.
AU - Yonnet, J.
PY - 1997/11/6
Y1 - 1997/11/6
N2 - Double differential cross sections d2σ/dpdΩ have been measured for π+ and K+ emitted around midrapidity in d + A and α + A collisions at a beam kinetic energy of 1.15 GeV/nucleon. The total π+ 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.
AB - Double differential cross sections d2σ/dpdΩ have been measured for π+ and K+ emitted around midrapidity in d + A and α + A collisions at a beam kinetic energy of 1.15 GeV/nucleon. The total π+ 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.
UR - https://www.scopus.com/pages/publications/30244515427
U2 - 10.1016/s0370-2693(97)01115-5
DO - 10.1016/s0370-2693(97)01115-5
M3 - Article
AN - SCOPUS:30244515427
SN - 0370-2693
VL - 413
SP - 8
EP - 14
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -