TY - JOUR
T1 - Baryon mass splittings in the 1/Nc expansion
AU - Jenkins, Elizabeth
AU - Lebed, Richard F.
PY - 1995
Y1 - 1995
N2 - The I=0,1,2,3 mass splittings of the spin-1/2 octet and spin-3/2 decuplet baryons are analyzed in the 1/Nc expansion combined with perturbative flavor breaking. We show there is considerable experimental evidence that the baryon masses satisfy the hierarchy predicted by this expansion. Since flavor symmetry-breaking suppression factors alone are not sufficient to describe the observed hierarchy, we conclude that there is firm evidence for the 1/Nc expansion in the baryon masses. Our analysis differs from nonrelativistic SU(6).
AB - The I=0,1,2,3 mass splittings of the spin-1/2 octet and spin-3/2 decuplet baryons are analyzed in the 1/Nc expansion combined with perturbative flavor breaking. We show there is considerable experimental evidence that the baryon masses satisfy the hierarchy predicted by this expansion. Since flavor symmetry-breaking suppression factors alone are not sufficient to describe the observed hierarchy, we conclude that there is firm evidence for the 1/Nc expansion in the baryon masses. Our analysis differs from nonrelativistic SU(6).
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U2 - 10.1103/PhysRevD.52.282
DO - 10.1103/PhysRevD.52.282
M3 - Article
AN - SCOPUS:0000449909
SN - 1550-7998
VL - 52
SP - 282
EP - 294
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
IS - 1
ER -