| Autor: |
R.S. Choudhury, J. N. Passi, S. N. Biswas, Ashok Goyal |
| Rok vydání: |
1980 |
| Předmět: |
|
| Zdroj: |
Physics Letters B. 97:305-309 |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/0370-2693(80)90607-3 |
| Popis: |
Quantum chromodynamics based isovector isoscolar particle mixing arising out of isospin violating quark mass differences has been used to construct a new charge-symmetry breaking Λ-N interaction element. It appears that vector meson exchanges between N and a physical Λ rather than pseudoscalar exchanges provide the largest contribution to explain the binding energy difference between the mirror hyper-nuclei ΛHe4 and ΛH4. Prediction of the model to Λn and Λp scattering lengths have been compared with those obtained from the combined analysis of ΛN scattering and s-shell hyperfragment data. We find satisfactory agreement of our results. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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