N ov 2 00 7 A six - dimensional H 2 – H 2 potential energy surface for bound state spectroscopy

A six-dimensional H₂–H₂ potential energy surface for bound state spectroscopy

A six-dimensional H(2)-H(2) potential energy surface for bound state spectroscopy.

We present a six-dimensional potential energy surface for the (H(2))(2) dimer based on coupled-cluster electronic structure calculations employing large atom-centered Gaussian basis sets and a small set of midbond functions at the dimer's center of mass. The surface is intended to describe accurately the bound and quasibound states of the dimers (H(2))(2), (D(2))(2), and H(2)-D(2) that correlat...

ar X iv : h ep - p h / 02 11 28 5 v 1 1 8 N ov 2 00 2 1 η nucleus optical potential in a chiral unitary approach

The self-energy of an η in a nuclear medium is calculated in a chiral unitary model, and applied to η states in nuclei. Our calculation predicts an attractive η nucleus optical potential which can accommodate many η bound states in different nuclei.

ar X iv : m at h - ph / 0 21 10 02 v 1 1 N ov 2 00 2 The nonrelativistic frequency dependent electric polarizability of a bound particle

In this work, we will calculate and analyze the frequency dependent electric polarizability of a particle which is bound by a one-dimensional delta potential. A perturbation technique based on the work by Noziéres will be employed to calculate our expression. Comparison will be made with references which have discussed work comparable to ours.

ar X iv : h ep - t h / 02 11 22 6 v 1 2 3 N ov 2 00 2 Zero Energy States of Reduced Super Yang - Mills

We consider reduced Super Yang-Mills Theory in d + 1 dimensions, where d = 2, 3, 5, 9. We present commutators to prove that for d = 3, 5 and 9 a possible ground state must be a Spin(d) singlet. We also discuss the case d = 2, where we give an upper bound on the total angular momentum and show that for odd dimensional gauge group no Spin(d) invariant state exists in the Hilbert space.