SParameter and Pseudo Nambu-Goldstone Boson Mass from Lattice QCD
نویسندگان
چکیده
منابع مشابه
S parameter and pseudo Nambu-Goldstone boson mass from lattice QCD.
We present a lattice calculation of L10, one of the low-energy constants in chiral perturbation theory, and the charged-neutral pion squared-mass splitting, using dynamical overlap fermion. The 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 o...
متن کاملS-parameter and pseudo-Nambu-Goldstone boson mass from overlap lattice QCD
aInst. Particle and Nuclear Studies, KEK and Physics Department, Sokendai, Tsukuba, Ibaraki 305-0801, Japan bSchool of High Energy Accelerator Science, The Graduate University for Advanced Studies (Sokendai), Tsukuba 305-0801, Japan cGraduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8571, Japan dRiken BNL Research Center, Brookhaven National Laboratory, Upton, New...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2008
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.101.242001