The derivative of the topological susceptibility at zero momentum and an estimate of $η'$ mass in the chiral limit

Details The derivative of the topological susceptibility at zero momentum and an estimate of $η'$ mass in the chiral limit The derivative of the topological susceptibility at zero momentum and an estimate of $η'$ mass in the chiral limit

2005-09-23

arxiv.org/abs/hep-ph/0509260v1

Phys.Lett. B634 (2006) 508-513

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 7 pages, 2 figures, uses cernrep.cls (included)

Scientific paper

10.1016/j.physletb.2006.02.002

The anomaly-anomaly correlator is studied using QCD sum rules. Using the matrix elements of anomaly between vacuum and pseudoscalars $\pi, eta$ and $\eta'$, the derivative of correlator $chi'(0)$ is evaluated and found to be $\approx 1.82 \times 10^{-3}$ GeV$^2$. Assuming that $\chi'(0)$ has no significant dependence on quark masses, the mass of $\eta'$ in the chiral limit is found to be $\approx$723 MeV. The same calculation also yields for the singlet pseudoscalar decay constant in the chiral limit a value of $\approx 178$ MeV.

Affiliated with

Also associated with

No associations

Rating

The derivative of the topological susceptibility at zero momentum and an estimate of $η'$ mass in the chiral limit 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 derivative of the topological susceptibility at zero momentum and an estimate of $η'$ mass in the chiral limit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The derivative of the topological susceptibility at zero momentum and an estimate of $η'$ mass in the chiral limit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-71127