ar X iv : n uc l - th / 9 90 10 54 v 1 1 9 Ja n 19 99 KVI
نویسندگان
چکیده
The chiral two-pion exchange component of the long-range pp interaction is studied in an energy-dependent partial-wave analysis. We demonstrate its presence and importance, and determine the chiral parameters c i (i = 1, 3, 4). The values agree well with those obtained from pion-nucleon amplitudes.
منابع مشابه
ar X iv : n uc l - th / 9 90 10 97 v 1 2 9 Ja n 19 99 1 The Landau - Migdal Parameters , g ′ NN and g
متن کامل
ar X iv : n uc l - th / 9 90 10 97 v 2 3 0 Ja n 19 99 1 The Landau - Migdal Parameters , g ′ NN and g ′ N ∆ and Pion
متن کامل
ar X iv : n uc l - th / 9 90 60 29 v 3 1 5 Ju l 1 99 9 1 Quark Matter ’ 99 — Theoretical Summary : What Next ?
متن کامل
ar X iv : n uc l - th / 9 90 10 35 v 1 1 4 Ja n 19 99 1 Nuclear Astrophysics
The manuscript reviews progress achieved in recent years in various aspects of nuclear astrophysics, including stellar nucleosynthesis, nuclear aspects of supernova collapse and explosion, neutrino-induced reactions and their possible role in the supernova mechanism and nucleosynthesis, explosive hydrogen burning in binary systems, and finally the observation of γ-rays from supernova remnants.
متن کاملar X iv : n uc l - th / 9 90 10 72 v 2 2 6 Ja n 19 99 1 Photon Absorption on a Neutron - Proton pair in 3 He and 4 He
We have developed a phenomenological quasi-deuteron model to describe photodisintegration reactions of He and He at intermediate photon energies, and compared the results with experimental data obtained by TAGX group in which contributions from photon absorption by pn pair were selectively observed. The data can be reproduced reasonably well, however there still remain certain discrepancies bet...
متن کامل