Probing polarized strangeness in the proton: the use of heavy quarks and the renormalization group

Abstract

Once heavy-quark corrections are take into account neutrino-proton elastic scattering provides a complementary probe of polarized strangeness in the nucleon to measurements from inclusive and semi-inclusive polarized deep inelastic scattering. We review the different types of experiment and a recent NLO calculation of heavy-quark contributions to the weak neutral-current axial-charge (measureable in neutrino-proton elastic scattering) performed using Witten's heavy-quark renormalization group method.