%0 Generic %1 Gupta2017Nucleon %A Gupta, Rajan %D 2017 %K na %T Nucleon Charges from 2+1+1-flavor HISQ and 2+1-flavor clover lattices %U http://arxiv.org/abs/1701.05651 %X Precise estimates of the nucleon charges \$g\_A\$, \$g\_S\$ and \$g\_T\$ are needed in many phenomenological analyses of SM and BSM physics. In this talk, we present results from two sets of calculations using clover fermions on 9 ensembles of 2+1+1-flavor HISQ and 4 ensembles of 2+1-flavor clover lattices. We show that high statistics can be obtained cost-effectively using the truncated solver method with bias correction and the coherent source sequential propagator technique. By performing simulations at 4--5 values of the source-sink separation \$t\_sep\$, we demonstrate control over excited-state contamination using 2- and 3-state fits. Using the high-precision 2+1+1-flavor data, we perform a simultaneous fit in \$a\$, \$M\_\pi\$ and \$M\_L\$ to obtain our final results for the charges.

@misc{Gupta2017Nucleon, abstract = {Precise estimates of the nucleon charges \$g\_A\$, \$g\_S\$ and \$g\_T\$ are needed in many phenomenological analyses of SM and BSM physics. In this talk, we present results from two sets of calculations using clover fermions on 9 ensembles of 2+1+1-flavor HISQ and 4 ensembles of 2+1-flavor clover lattices. We show that high statistics can be obtained cost-effectively using the truncated solver method with bias correction and the coherent source sequential propagator technique. By performing simulations at 4--5 values of the source-sink separation \$t\_{\rm sep}\$, we demonstrate control over excited-state contamination using 2- and 3-state fits. Using the high-precision 2+1+1-flavor data, we perform a simultaneous fit in \$a\$, \$M\_\pi\$ and \$M\_\pi L\$ to obtain our final results for the charges.}, added-at = {2019-02-23T22:09:48.000+0100}, archiveprefix = {arXiv}, author = {Gupta, Rajan}, biburl = {https://www.bibsonomy.org/bibtex/2a1b8afd1e0d8301ea4245888380bc0f8/cmcneile}, citeulike-article-id = {14260462}, citeulike-linkout-0 = {http://arxiv.org/abs/1701.05651}, citeulike-linkout-1 = {http://arxiv.org/pdf/1701.05651}, day = 20, eprint = {1701.05651}, interhash = {d2affcbf2d3d833f4c4f968690d538b2}, intrahash = {a1b8afd1e0d8301ea4245888380bc0f8}, keywords = {na}, month = jan, posted-at = {2017-01-23 09:42:35}, priority = {2}, timestamp = {2019-02-23T22:15:27.000+0100}, title = {{Nucleon Charges from 2+1+1-flavor HISQ and 2+1-flavor clover lattices}}, url = {http://arxiv.org/abs/1701.05651}, year = 2017 }