Flavour singlet pseudoscalar masses in N_f = 2 QCD

Details Flavour singlet pseudoscalar masses in N_f = 2 QCD Flavour singlet pseudoscalar masses in N_f = 2 QCD

2000-10-05

arxiv.org/abs/hep-lat/0010005v1

Phys.Rev. D63 (2001) 074503

Physics

High Energy Physics

High Energy Physics - Lattice

8 pages, 10 figures

Scientific paper

10.1103/PhysRevD.63.074503

We perform a lattice mass analysis in the flavour singlet pseudoscalar channel on the SESAM and TXL full QCD vacuum configurations, with 2 active flavours of dynamical Wilson fermions at beta = 5.6. At our inverse lattice spacing, a^-1 = 2.3 GeV, we retrieve by a chiral extrapolation to the physical light quark masses the value m_eta' = 3.7(+8)(-4) m_pi. A crude extrapolation from (N_f = 3) phenomenology would suggest m_eta' \approx 5.1 m_pi for N_f = 2 QCD. we verify that the mass gap between the singlet state eta' and the pi flavour triplt state is due to gauge configurations with non-trivial topology.

Affiliated with

Also associated with

No associations

Rating

Flavour singlet pseudoscalar masses in N_f = 2 QCD 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 Flavour singlet pseudoscalar masses in N_f = 2 QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flavour singlet pseudoscalar masses in N_f = 2 QCD will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-493844