Experimental study of the near threshold pi+ p ---> pi+ pi+ n cross-section and chiral symmetry
| Autoři: | Sevior, M. E., Ambardar, A., Brack, J. T., Camerini, Paolo, Duncan, F., Ernst, J., Feltham, A., Grion, N., Johnson, R. R., Koch, G., Meirav, O., Ottewell, D. F., Rui, Rinaldo, Smith, G. R., Sossi, V., Theis, D., Vetterli, D. |
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| Přispěvatelé: | M. E., Sevior, A., Ambardar, J. T., Brack, Camerini, Paolo, F., Duncan, J., Ernst, A., Feltham, N., Grion, R. R., Johnson, G., Koch, O., Meirav, D. F., Ottewell, Rui, Rinaldo, G. R., Smith, V., Sossi, D., Thei, D., Vetterli |
| Rok vydání: | 1993 |
| Témata: | chiral simmetry, scattering length |
| Popis: | Total cross-section measurements of the π+p→π+π+n reaction at pion kinetic energies of 180, 184, 190, and 200 MeV are reported. The threshold value for the amplitude a(π+π+) as well as the s-wave, isospin 2, ππ scattering length a20 were determined. The results were found to be in agreement with chiral perturbation theory and inconsistent with the calculations of Jacob and Scadron and the model of dominance by quark loop anomalies. |
| Popis souboru: | STAMPA |
| Jazyk: | English |
| Přístupová URL adresa: | https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::da3001570766f5425e0c139fca1ee5ec https://hdl.handle.net/11368/2559775 |
| Rights: | OPEN |
| Přírůstkové číslo: | edsair.dedup.wf.001..da3001570766f5425e0c139fca1ee5ec |
| Autor: | Sevior, M. E., Ambardar, A., Brack, J. T., Camerini, Paolo, Duncan, F., Ernst, J., Feltham, A., Grion, N., Johnson, R. R., Koch, G., Meirav, O., Ottewell, D. F., Rui, Rinaldo, Smith, G. R., Sossi, V., Theis, D., Vetterli, D. |
| Přispěvatelé: | M. E., Sevior, A., Ambardar, J. T., Brack, Camerini, Paolo, F., Duncan, J., Ernst, A., Feltham, N., Grion, R. R., Johnson, G., Koch, O., Meirav, D. F., Ottewell, Rui, Rinaldo, G. R., Smith, V., Sossi, D., Thei, D., Vetterli |
| Jazyk: | angličtina |
| Rok vydání: | 1993 |
| Předmět: | |
| Popis: | Total cross-section measurements of the π+p→π+π+n reaction at pion kinetic energies of 180, 184, 190, and 200 MeV are reported. The threshold value for the amplitude a(π+π+) as well as the s-wave, isospin 2, ππ scattering length a20 were determined. The results were found to be in agreement with chiral perturbation theory and inconsistent with the calculations of Jacob and Scadron and the model of dominance by quark loop anomalies. |
| Databáze: | OpenAIRE |
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