The Momentum Dependence of the $ρ-ω$ Mixing Amplitude in a Hadronic Model

Details The Momentum Dependence of the $ρ-ω$ Mixing Amplitude in a Hadronic Model The Momentum Dependence of the $ρ-ω$ Mixing Amplitude in a Hadronic Model

1993-01-04

arxiv.org/abs/nucl-th/9301002v1

Phys.Rev.C47:2462-2466,1993

Physics

Nuclear Physics

Nuclear Theory

11 pages, SCRI-122192

Scientific paper

10.1103/PhysRevC.47.R2462

We calculate the momentum dependence of the $\rho-\omega$ mixing amplitude in a purely hadronic model. The basic assumption of the model is that the mixing amplitude is generated by $N{\bar{N}}$ loops and thus driven entirely by the neutron-proton mass difference. The value of the amplitude at the $\omega$-meson point is expressed in terms of only the $NN\omega$ and the $NN\rho$ coupling constants. Using values for these couplings constrained by empirical two-nucleon data we obtain a value for the mixing amplitude in agreement with experiment. Extending these results to the spacelike region, we find a $\rho-\omega$ contribution to the NN interaction that is strongly suppressed and opposite in sign relative to the conventional contribution obtained from using the constant on-shell value for the mixing amplitude.

Affiliated with

Also associated with

No associations

Rating

The Momentum Dependence of the $ρ-ω$ Mixing Amplitude in a Hadronic Model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Momentum Dependence of the $ρ-ω$ Mixing Amplitude in a Hadronic Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Momentum Dependence of the $ρ-ω$ Mixing Amplitude in a Hadronic Model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-216812