This title appears in the Scientific Report :
2000
First results from subthreshold k+ -production measurements with ANKE
First results from subthreshold k+ -production measurements with ANKE
The new spectrometer ANKE has been put into operation at the accelerator COSY of the Forschungszentrum Julich. An initial scientific goal is to study K+-production in pA collisions at subthreshold energies below the free NN-threshold of T = 1.58 GeV. First measurements of double differential cross s...
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Personal Name(s): | Barsov, S. |
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Bechstedt, U. / Borchert, G. / Borgs, W. / Büscher, M. / Debowski, M. / Erven, W. / Eßer, R. / Fedorets, P. / Gotta, D. / Hartmann, M. / Junghans, H. / Kacharava, A. / Klehr, F. / Koch, H. R. / Komarov, V. I. / Koptev, V. / Kulessa, P. / Kulikov, A. / Kurbatov, V. / Macharashvili, G. / Maier, R. / Mikirtytchiants, S. / Merzliakov, S. / Müller, H. / Mussgiller, L. A. / Nioradze, M. / Ohm, H. / Petrus, A. / Prasuhn, D. / Pysz, K. / Rathmann, F. / Rimarzig, B. / Rudy, Z. / Schleichert, R. / Schneider, C. / Schneider, H. / Schult, O. W. B. / Seyfarth, H. / Sistemich, K. / Stein, H. J. / Ströher, H. / ANKE Collaboration | |
Contributing Institute: |
Institut für Kernphysik; IKP |
Published in: |
Nuclear physics |
Imprint: |
Amsterdam
North-Holland Publ. Co.
2000
|
Physical Description: |
1107c |
Document Type: |
Journal Article |
Research Program: |
Experimente an COSY |
Series Title: |
Nuclear Physics A
663-664 |
Subject (ZB): | |
Publikationsportal JuSER |
The new spectrometer ANKE has been put into operation at the accelerator COSY of the Forschungszentrum Julich. An initial scientific goal is to study K+-production in pA collisions at subthreshold energies below the free NN-threshold of T = 1.58 GeV. First measurements of double differential cross sections in p(12)C collisions at emission angles around 0 degrees have been performed at T = 1.0, 1.2 and 2.0 CeV. The challenge is to identify the kaons in a huge background of pions and protons, since the signal to background ratio decreases to about 10(-6) at T = 1.0 GeV. For background suppression detectors and a trigger system based on energy-loss and time-of-flight measurements have been developed. In the analysis the decay of kaons (tau = 12.4 ns) stopped in the detection system into mu(+) and pi(+) is exploited as well as the track information from the wire chambers. |