the potential energy surface pes of (h2)2 dimer has been investigated, using five simple rigid rotor models. these models are called: head to head, symmetric side to side, l , steplike and t model. all calculations were done at two levels of ab initio  methods: mp2(full) and qcisd (t,full) using cc-pvtz basis set at singlet state of spin multiplicity. the results of scanning pes were then fitte...

We performed electron spin and nuclear magnetic resonance and inelastic neutron scattering measurements of a single crystal of lightly hole-doped La1−xSrxCoO3, x ∼ 0.002 in order to establish the origin of a surprisingly strong magnetization due to a very small Sr doping. The data provide experimental evidence for the creation at low temperatures of extended spin clusters with a large spin mult...

In this note we show that every compact spin manifold of dimension ≥ 3 can be given a Riemannian metric for which a finite part of the spectrum of the Dirac operator consists of arbitrarily prescribed eigenvalues with multiplicity 1.

The Potential Energy Surface PES of (H2)2 dimer has been investigated, using five simple rigid rotor models. These models are called: head to head, symmetric side to side, L , steplike and T model. All calculations were done at two levels of ab initio  methods: MP2(Full) and QCISD (T,Full) using cc-pVTZ basis set at singlet state of spin multiplicity. The results of scanning PES were then fitte...

mation about the Collins and Sivers mechanisms, which are signals for the transverse parton distribution function hq1 in convolution with the Collins fragmentation function H⊥,q 1 , and of the Sivers distribution function f ⊥,q 1T with the spin-averaged fragmentation function Dh q , respectively. Furthermore, both the momentum and helicity distributions of the strange quark sea have been extrac...

Electron spin transient nutation (ESTN) experiments show that the spin multiplicity of the ground state of C60 in frozen solution is a doublet with S ) /2. In purified samples, there is no evidence for excited states or other species with higher multiplicity. In the anions of C120O (n ) 2, 3, 4), where the CW EPR experiments have shown that a mixture of species is present, ESTN experiments conf...

Let G = Spin[4n+1] be the connected, simply connected complex Lie group of type B2n and let G = Spin(p, q) (p + q = 4n + 1) denote a (connected) real form. If q / ∈ {0, 1}, G has a nontrivial fundamental group and we denote the corresponding nonalgebraic double cover by G̃ = ̃ Spin(p, q). The main purpose of this paper is to describe a symmetry in the set of genuine parameters for the various G̃ ...