Excited isovector mesons using the stochastic LapH method

• Published in: arXiv.org
• Main Authors: Morningstar, Colin, Fahy, Brendan, You-Cyuan Jhang, Juge, Keisuke J, Lenkner, David, Wong, Chik Him
• Format: Paper
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 31.10.2014
• Subjects: Excitation spectra; Galling; Lattice vibration; Mathematical analysis; Matrix methods; Mesons; Operators; Propagation modes; Quarks

The spectrum of excited isovector mesons is studied using a 32^3 x 256 anisotropic lattice with u,d quark masses set to give a pion mass near 240 MeV. Results in the bosonic isovector nonstrange symmetry channels of zero total momentum are presented using correlation matrices of unprecedented size....