M ar 1 99 9 Rotation Eigenvectors and Spin 1 / 2

ar X iv : c on d - m at / 9 60 31 90 v 1 2 9 M ar 1 99 6 The Four - Dimensional XY Spin Glass

ar X iv : a st ro - p h / 99 03 23 5 v 2 1 6 M ar 1 99 9 Nuclear Spin Relaxation within Interstellar Grains

We identify a new mechanism of internal dissipation of rotational kinetic energy in spinning dust grains, arising from the reorientation of nuclear angular momentum, e.g., spins of protons. Grain rotation induces magnetization of the nuclear spin system, with net alignment of nuclear spins parallel to the grain angular velocity. When the grain does not rotate around a principal axis, the nuclea...

ar X iv : h ep - p h / 99 05 39 8 v 1 1 9 M ay 1 99 9 Resonances in weak nonleptonic Ω − decay

We examine the importance of JP = 12 + , 12 − resonances for weak nonleptonic Ω− decays within the framework of chiral perturbation theory. The spin-1/2 resonances are included into an effective theory and tree contributions to the Ω− decays are calculated. We find significant contributions to the decay amplitudes and satisfactory agreement with experiment. This confirms and extends previous re...

ar X iv : h ep - t h / 95 03 06 1 v 1 9 M ar 1 99 5 Spinor vortices in non - relativistic Chern - Simons theory

The non-relativistic 'Dirac' equation of Lévy-Leblond is used to describe a spin 1/2 particle interacting with a Chern-Simons gauge field. Static, purely magnetic, self-dual spinor vortices are constructed. The solution can be 'exported' to a uniform magnetic background field.

ar X iv : h ep - p h / 99 08 22 1 v 1 2 A ug 1 99 9 The odderon and spin - dependence of high energy proton - proton scattering

The sensitivity of the spin dependence of high energy pp scattering, particularly the asymmetry A N N , to the odderon is demonstrated. Several possible ways of determining the spin dependence of the odderon coupling from small-t data are presented.