par Bohm, Georg;Krecker, U.;Wysotzki, F.;Adamović, O.;Coremans, Ghislaine 
;Sacton, Jean ;Wickens, John H. ;Cantwell, Tom;Níghógáin, C.;Montwill, Alexander;Davis, Dudley;Tovee, D.N.;Garbowska-Pniewska, K.;Pniewski, T.;Zakrzewski, J.A.
Référence Nuclear physics. B, 48, 1, page (1-12)
Publication Publié, 1972-11
;Sacton, Jean ;Wickens, John H. ;Cantwell, Tom;Níghógáin, C.;Montwill, Alexander;Davis, Dudley;Tovee, D.N.;Garbowska-Pniewska, K.;Pniewski, T.;Zakrzewski, J.A.Référence Nuclear physics. B, 48, 1, page (1-12)
Publication Publié, 1972-11
Article révisé par les pairs
| Résumé : | The masses of the charged Σ hyperons have been determined from the mean ranges of particles from the interactions of K- mesons at rest on hydrogen in emulsion, K- + p → Σ± + π∓, and also the mean rannge of the protons from Σ+ hyperons at rest, Σ+ → p + π0. The results are mΣ+ = 1189.39 ± 0.06 MeV/c2, mΣ- - mΣ+ = 7.91 ± 0.23 MeV/c2, which give mΣ-=1197.30±0.24 MeV/c2. The finding that the energy loss rate of low velocity negative particles is less than that of positive particles has been confirmed, but in contradiction with an earlier result, the range straggling for negative particles was not found to be anomalously high. © 1972. |
