Excited State Nucleon Spectrum with Two Flavors of Dynamical Fermions Export

@article{citeulike:3908803, abstract = {Highly excited states for isospin 1/2 baryons are calculated for the first time using lattice QCD with two flavors of dynamical quarks. Anisotropic lattices are used with two pion masses: 416(36) MeV and 578(29) MeV. The lowest four energies are reported in each of the six irreducible representations of the octahedral group at each pion mass. The lattices used have dimensions 24^3x64, spatial lattice spacing a\_s = 0.11 fm and temporal lattice spacing a\_t = 1/3 a\_s. Clear evidence is found for a 5/2^-state in the pattern of negative-parity excited states. This agrees with the pattern of physical states and spin 5/2 has been realized for the first time on the lattice.}, archivePrefix = {arXiv}, author = {Bulava, John M. and Edwards, Robert G. and Engelson, Eric and Foley, Justin and Jo\&\#xf3;, B\&\#xe1;lint and Lichtl, Adam and Lin, Huey-Wen and Mathur, Nilmani and Morningstar, Colin and Richards, David G. and Wallace, Stephen J.}, citeulike-article-id = {3908803}, citeulike-linkout-0 = {http://arxiv.org/abs/0901.0027}, citeulike-linkout-1 = {http://arxiv.org/pdf/0901.0027}, day = {31}, eprint = {0901.0027}, keywords = {excited, nucleons, two-flavor}, month = {Dec}, posted-at = {2009-01-19 16:09:35}, priority = {2}, title = {Excited State Nucleon Spectrum with Two Flavors of Dynamical Fermions}, url = {http://arxiv.org/abs/0901.0027}, year = {2008} }

TY - JOUR ID - citeulike:3908803 L3 - citeulike-article-id:3908803 N2 - Highly excited states for isospin 1/2 baryons are calculated for the first time using lattice QCD with two flavors of dynamical quarks. Anisotropic lattices are used with two pion masses: 416(36) MeV and 578(29) MeV. The lowest four energies are reported in each of the six irreducible representations of the octahedral group at each pion mass. The lattices used have dimensions 24^3x64, spatial lattice spacing a_s = 0.11 fm and temporal lattice spacing a_t = 1/3 a_s. Clear evidence is found for a 5/2^-state in the pattern of negative-parity excited states. This agrees with the pattern of physical states and spin 5/2 has been realized for the first time on the lattice. TI - Excited State Nucleon Spectrum with Two Flavors of Dynamical Fermions KW - excited KW - nucleons KW - two-flavor AU - Bulava, John AU - Edwards, Robert AU - Engelson, Eric AU - Foley, Justin AU - Joó, Bálint AU - Lichtl, Adam AU - Lin, Huey-Wen AU - Mathur, Nilmani AU - Morningstar, Colin AU - Richards, David AU - Wallace, Stephen PY - 2008/Dec/31/ UR - http://arxiv.org/abs/0901.0027 ER -