| Autor: |
Elinon cC, Lewis cR, Lowenstein aD, Smith bG, Furic aM, Lochstet dW, Mutchler cG, Hungerford aE, Moss bR, Kishimoto bT, Mayes aB, Tang aL, Kruk bJ, Clement bJ, Pinsky cL, Hicks aA, von Witsch bW, Xueb Y, Chu aC, Armstrong T, Hartman bK |
| Rok vydání: |
1987 |
| Předmět: |
|
| Zdroj: |
Physical Review D. 36:659-673 |
| ISSN: |
0556-2821 |
| DOI: |
10.1103/physrevd.36.659 |
| Popis: |
Total and annihilation n-barp cross sections from 100 to 500 MeV/c are reported, the first such measurements with good statistics in this momentum range. These cross sections are well represented by A+B/p, where p is the incident antineutron momentum, and are in agreement with previous n-barp and p-barn measurements. A comparison of these cross sections with phenomenological potential model calculations is good overall. However, the microscopic quark model gives unsatisfactory predictions. The agreement between previous p-barp annihilation cross sections and n-barp cross sections above 300 MeV/c is excellent. The total n-barp cross section is lower than the total p-barp cross section in this momentum range. Both of these types of behavior are predicted by potential models. The anticipated availability of future p-barp data below 300 MeV/c should indicate whether these trends continue at lower momenta. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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