Quark mass differences and ρ-ω Mixing

Paul George Langacker

Research output: Contribution to journalReview article

52 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)2983-2985
Number of pages3
JournalPhysical Review D
Volume20
Issue number11
DOIs
StatePublished - Jan 1 1979

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Quark mass differences and ρ-ω Mixing'. Together they form a unique fingerprint.

  • Cite this