Hyperon forward spin polarizability γ0 in baryon chiral perturbation theory; Physical Review D; Vol. 92, iss. 9
| Parent link: | Physical Review D: particles, fields, gravitation, and cosmology.— , 1970- Vol. 92, iss. 9.— 2015.— [096004] |
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| Ente Autore: | |
| Altri autori: | , , , |
| Riassunto: | Title screen We present the calculation of the hyperon forward spin polarizability ?0 using manifestly Lorentz-covariant baryon chiral perturbation theory including the intermediate contribution of the spin-3/2 states. As at the considered order the extraction of ?0 is a pure prediction of chiral perturbation theory, the obtained values are a good test for this theory. After including explicitly the decuplet states, our SU(2) results have a very good agreement with the experimental data and we extend our framework to SU(3) to give predictions for the hyperons’ ?0 values. Prominent are the S- and ?- baryons as their photon transition to the decuplet is forbidden in SU(3) symmetry and therefore they are not sensitive to the explicit inclusion of the decuplet in the theory Режим доступа: по договору с организацией-держателем ресурса |
| Lingua: | inglese |
| Pubblicazione: |
2015
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| Soggetti: | |
| Accesso online: | http://dx.doi.org/10.1103/PhysRevD.92.096004 http://journals.aps.org/prd/pdf/10.1103/PhysRevD.92.096004 |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=644253 |