Sendai Nuclear Science Colloquium (No. 244)

Nucleon strangeness form factors from N_f=2+1 clover fermion lattice QCD

土井琢身

筑波大学

日時：2009年11月13日（金） 13:30-

場所：東北大学 大学院理学研究科総合棟７階　７４３号室

Recent experiments of parity-violating electronscattering (PVES) make it possible to pin down the strangenesselectromagnetic form factors in the nucleon.In my talk, I will present a theoretical calculation ofstrangeness　electric and magnetic form factorsfrom the clover N_f=2+1 lattice QCD simulation.Our lattice results are consistent with experimental values,and our errors are an order of magnitude smaller.I also present preliminary results for thestrangeness parton moments in the nucleon.