Forward K+ production in subthreshold pA collisions at 1.0 GeV - art. no. 022301

Citation
V. Koptev et al., Forward K+ production in subthreshold pA collisions at 1.0 GeV - art. no. 022301, PHYS REV L, 8702(2), 2001, pp. 2301-NIL_26
Citations number
22
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
8702
Issue
2
Year of publication
2001
Pages
2301 - NIL_26
Database
ISI
SICI code
0031-9007(20010709)8702:2<2301:FKPISP>2.0.ZU;2-P
Abstract
K+-meson production in pA (A = C, Cu, Au) collisions has been studied using the ANKE spectrometer at an internal target position of the COSY-Julich ac celerator. The complete momentum spectrum of kaons emitted at forward angle s, theta less than or equal to 12 degrees, has been measured for a beam ene rgy of T-p = 1.0 GeV, far below the free NN threshold of 1.58 GeV. The spec trum does not follow a thermal distribution at low kaon momenta and the lar ger moments reflect a high degree of collectivity in the target nucleus.