A brief review of the isospin symmetry breaking in hadrons and nuclei is given with emphasis on the u - d quark mass difference. The off-shell rho(0) - omega mixing is studied as a typical example of the symmetry breaking, and its relevance to the nuclear force and nuclei is discussed.
机构:
Chinese Acad Sci, CAS Key Lab High Precis Nucl Spect, Inst Modern Phys, Lanzhou 730000, Peoples R ChinaChinese Acad Sci, CAS Key Lab High Precis Nucl Spect, Inst Modern Phys, Lanzhou 730000, Peoples R China
Xinxing Xu
CHINESE SCIENCE BULLETIN-CHINESE,
2021,
66
(26):
: 3405
-
3411