| Autor: |
Y. Shimizu, M. Aoki, D. R. Beavis, Paul Stankus, Kazuhiro Tanaka, J. B. Carroll, H. J. Crawford, P. J. Lindstrom, J. Chiba, S. Nagamiya, Tadayoshi Doke, J. J. Beatty, P. N. Kirk, T. Kashiwagi, Ryugo S. Hayano, Z.F. Wang, H. H. Heckman, L. Greiner, Jun Kikuchi, J. Engelage, T.J. Hallman, R. R. Debbe |
| Rok vydání: |
1992 |
| Předmět: |
|
| Zdroj: |
Nuclear Physics A. 544:603-607 |
| ISSN: |
0375-9474 |
| DOI: |
10.1016/0375-9474(92)90626-u |
| Popis: |
The production of long-lived negative secondaries, including π − , K − , antiprotons ( p ) and antideuterons ( d ) at 0° in Si+Au, Si+Cu, and Si+Al collisions at the BNL-AGS has been measured using a double-bend, double-focussing spectrometer. The p rapidity spectra from all three targets are well fit by Gaussians centered ( y = 1.7 − 1.8 ) at mid-rapidity, and are consistent with production in nucleon-nucleon first collisions. The d p 2 ratio in Si+Au collisions is lower by a factor of 10 than that seen in p+p and p+A collisions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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