TY  - JOUR
AU  - Meissner, U.G.
AU  - Rakhimov, A. M.
AU  - Wirzba, A.
AU  - Yakhshiev, U. T.
TI  - Neutron-proton mass difference in isospin-asymmetric nuclear matter
JO  - The European physical journal / A
VL  - 32
SN  - 1434-6001
CY  - Berlin
PB  - Springer
M1  - PreJuSER-59365
SP  - 299 - 309
PY  - 2007
N1  - Record converted from VDB: 12.11.2012
AB  - Isospin-breaking effects in the baryonic sector are studied in the framework of a medium-modified Skyrme model. The neutron-proton mass difference in infinite, asymmetric nuclear matter is discussed. In order to describe the influence of the nuclear environment on the skyrmions, we include energy-dependent charged and neutral pion optical potentials in the s- and p-wave channels. The present approach predicts that the neutron-proton mass difference is mainly dictated by its strong part and that it strongly decreases in neutron matter.
KW  - nuclear matter (INSPIRE)
KW  - isospin: asymmetry (INSPIRE)
KW  - p n: mass difference (INSPIRE)
KW  - Skyrme model (INSPIRE)
KW  - potential: optical (INSPIRE)
KW  - effective Lagrangian (INSPIRE)
KW  - soliton (INSPIRE)
KW  - form factor: electromagnetic (INSPIRE)
KW  - numerical calculations (INSPIRE)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000247244600007
DO  - DOI:10.1140/epja/i2007-10390-9
UR  - https://juser.fz-juelich.de/record/59365
ER  -