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Forward K{sup +} Production in Subthreshold pA Collisions at 1.0GeV

Journal Article · · Physical Review Letters
K{sup +} -meson production in pA (A=C,Cu,Au) collisions has been studied using the ANKE spectrometer at an internal target position of the COSY-Juelich accelerator. The complete momentum spectrum of kaons emitted at forward angles, {theta}{<=}12{sup o}, has been measured for a beam energy of T{sub p}=1.0 GeV , far below the free NN threshold of 1.58GeV. The spectrum does not follow a thermal distribution at low kaon momenta and the larger momenta reflect a high degree of collectivity in the target nucleus.
Sponsoring Organization:
(US)
OSTI ID:
40276954
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 2 Vol. 87; ISSN 0031-9007
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English

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