f_K/f_pi in Full QCD with Domain Wall Valence Quarks Export

@misc{citeulike:732919, abstract = {We compute the ratio of pseudoscalar decay constants f\_K/f\_pi using domain-wall valence quarks and rooted improved Kogut-Susskind sea quarks. By employing continuum chiral perturbation theory, we extract the Gasser-Leutwyler low-energy constant L\_5, and extrapolate f\_K/f\_pi to the physical point. We find: f\_K/f\_pi = 1.218 (+- 0.002) (+0.011 -0.024) where the first error is statistical and the second error is an estimate of the systematic due to chiral extrapolation and fitting procedures. This value agrees within the uncertainties with the determination by the MILC collaboration, calculated using Kogut-Susskind valence quarks, indicating that systematic errors arising from the choice of lattice valence quark are small.}, archivePrefix = {arXiv}, author = {Beane, S. R. and Bedaque, P. F. and Orginos, K. and Savage, M. J.}, citeulike-article-id = {732919}, citeulike-linkout-0 = {http://arxiv.org/abs/hep-lat/0606023}, citeulike-linkout-1 = {http://arxiv.org/pdf/hep-lat/0606023}, day = {30}, eprint = {hep-lat/0606023}, keywords = {constant, decay, mixed, nplqcd}, month = {Jun}, posted-at = {2006-07-03 15:18:25}, priority = {0}, title = {f\_K/f\_pi in Full QCD with Domain Wall Valence Quarks}, url = {http://arxiv.org/abs/hep-lat/0606023}, year = {2006} }

TY - ELEC ID - citeulike:732919 L3 - citeulike-article-id:732919 N2 - We compute the ratio of pseudoscalar decay constants f_K/f_pi using domain-wall valence quarks and rooted improved Kogut-Susskind sea quarks. By employing continuum chiral perturbation theory, we extract the Gasser-Leutwyler low-energy constant L_5, and extrapolate f_K/f_pi to the physical point. We find: f_K/f_pi = 1.218 (+- 0.002) (+0.011 -0.024) where the first error is statistical and the second error is an estimate of the systematic due to chiral extrapolation and fitting procedures. This value agrees within the uncertainties with the determination by the MILC collaboration, calculated using Kogut-Susskind valence quarks, indicating that systematic errors arising from the choice of lattice valence quark are small. TI - f_K/f_pi in Full QCD with Domain Wall Valence Quarks KW - constant KW - decay KW - mixed KW - nplqcd AU - Beane, SR AU - Bedaque, PF AU - Orginos, K AU - Savage, MJ PY - 2006/Jun/30/ UR - http://arxiv.org/abs/hep-lat/0606023 ER -