TY - JOUR
T1 - Quark mass differences and ρ-ω Mixing
AU - Langacker, Paul
N1 - Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 1979
Y1 - 1979
N2 - The experimental data on ρ-ω mixing are reanalyzed in order to extract a new value for the ratio r-=(md-mu)2ms, where mi is the current quark mass of quark i. After correcting for the purely electromagnetic contribution to the mixing, one obtains r-=0.010±0.002, which agrees well with the average r-=0.014±0.003 obtained previously from kaon and baryon mass differences and the η→3π decay and disagrees substantially with the value ±(0.031±0.007) that would be required if mu or md were zero. A new determination of the current quark mass ratios, including the effects of ρ-ω mixing, then yields mumd=0.47±0.11 and mdms=0.042±0.007.
AB - The experimental data on ρ-ω mixing are reanalyzed in order to extract a new value for the ratio r-=(md-mu)2ms, where mi is the current quark mass of quark i. After correcting for the purely electromagnetic contribution to the mixing, one obtains r-=0.010±0.002, which agrees well with the average r-=0.014±0.003 obtained previously from kaon and baryon mass differences and the η→3π decay and disagrees substantially with the value ±(0.031±0.007) that would be required if mu or md were zero. A new determination of the current quark mass ratios, including the effects of ρ-ω mixing, then yields mumd=0.47±0.11 and mdms=0.042±0.007.
UR - http://www.scopus.com/inward/record.url?scp=0001543323&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001543323&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.20.2983
DO - 10.1103/PhysRevD.20.2983
M3 - Review article
AN - SCOPUS:0001543323
SN - 1550-7998
VL - 20
SP - 2983
EP - 2985
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
IS - 11
ER -