Nuclear Spin-Dependent Effects of Parity Nonconservation in Ortho-H2

We report a theoretical treatment of the nuclear spin-dependent spatial parity nonconserving (NSD-PNC) electron–nuclear interaction effect in the diatomic homonuclear ortho-H 2 molecule. The magnetic dipole transition between v = 1 and v = 0 vibrational sublevels of the ground 1 Σ g + state is examined. The orthohydrogen molecule is a unique molecular system where the parity nonconserving (PNC) nuclear spin-dependent interaction due to the neutral weak currents can be directly observed and the corresponding coupling constant can be extracted from the future experiments. The theoretical simulation shows that using the cavity-enhanced scheme in conjunction with the record achievement of the intracavity absorption spectroscopy, the experiment on the observation of the NSD-PNC effect due to the neutral weak current in ortho-H 2 looks feasible.

THE LOOP CORRECTIONS TO THE PARITY-VIOLATING ELASTIC ELECTRON-PROTON SCATTERING

We calculate the two-boson-exchange (TBE) corrections to the parity-violating asymmetry of the elastic electron-proton scattering in a parton model using the formalism of generalized parton distributions (GPD's). We find that these effects can reach a few percent and are comparable in size with the current experimental measurements of strange-quark effects in the proton neutral weak current. Our result is also compared with the result of the hadronic model.

SOLAR NEUTRINOS AND THE JUPITER

Judging from the fact that the planet Jupiter is bigger in size than the Earth by 103 while is smaller than the Sun by 103, the solar neutrinos, when encounter the Jupiter, may have some visible effects. We estimate how much energy/power carried by solar neutrinos get transferred by this unique process. Solar neutrinos, despite of their feeble neutral weak current interactions, might deposit enough energy in the Jupiter.