Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2008-06-26
Phys.Rev.Lett.101:242001,2008
Physics
High Energy Physics
High Energy Physics - Lattice
9 pages, 3 figures, references added, minor corrections made, version to appear in PRL
Scientific paper
10.1103/PhysRevLett.101.242001
We present a lattice calculation of $L_{10}$, one of the low energy constants in Chiral Perturbation Theory, and the charged-neutral pion squared mass splitting, using dynamical overlap fermion. Exact chiral symmetry of the overlap fermion allows us to reliably extract these quantities from the difference of the vacuum polarization functions for vector and axial-vector currents. In the context of the technicolor models, these two quantities are read as the $S$-parameter and the pseudo-Nambu-Goldstone boson mass respectively, and play an important role in discriminating the models from others. This calculation can serve as a feasibility study of the lattice techniques for more general technicolor gauge theories.
Aoki Sadao
for JLQCD Collaboration
Fukaya Hidenori
Hashimoto Shigehira
Kaneko Tak
No associations
LandOfFree
S-parameter and pseudo-Nambu-Goldstone boson mass from lattice 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 S-parameter and pseudo-Nambu-Goldstone boson mass from lattice QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and S-parameter and pseudo-Nambu-Goldstone boson mass from lattice QCD will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-245312