| Autor: |
S.W. Wissink, L.D. Knutson, C. Whiddon, S. E. Vigdor, J. Sowinski, P.L. Jolivette, C. Bloch, W.W. Jacobs, R.C. Byrd |
| Rok vydání: |
1991 |
| Předmět: |
|
| Zdroj: |
Physical Review Letters. 66:1410-1413 |
| ISSN: |
0031-9007 |
| DOI: |
10.1103/physrevlett.66.1410 |
| Popis: |
Measurements of the spin dependence of {ital n}-{ital p} elastic scatteing at {ital E}{sub {ital n}}=183 MeV have been carried out with polarized neutrons and polarized protons. If charge symmetry holds, the two analyzing powers {ital A}{sub {ital n}} and {ital A}{sub {ital p}} must be equal. The measured value of {Delta}{ital A}=={ital A}{sub {ital n}}{minus}{ital A}{sub {ital p}}, averaged over the angular range 82.2{degree}{le}{theta}{sub c.m.}{le}116.1{degree}, is (33.1{plus minus}5.9{plus minus}4.3){times}10{sup {minus}4}. This result represents clear evidence of charge-symmetry violation in the strong interaction. The measurement agrees well with predictions from meson-exchange theory when these include the isospin mixing of the {rho}{sup 0} and {omega}{sup 0} mesons. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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