In the crystal structure of the title compound, [Zn(3)(NCSe)(4)(OH)(CN)(C(4)H(4)N(2))(4)](n) one of the two crystallograph-ically independent zinc(II) cations is coordinated by two terminal N-bonded seleno-cyanato anions and two N atoms of two symmetry-related pyridazine ligands in a trigonal-bipyramidal geometry, while the other zinc(II) cation is coordinated by one terminal N-bonded seleno-cy...

In this talk we survey the SSC and LHC signals and backgrounds for the physics of electroweak symmetry breaking. We study the process pp → WWX and compute the rate for the “gold-plated” signals W → lν and Z → ll (l = e, μ) for a wide variety of models. We use a forward jet tag and central jet veto to suppress the standard-model backgrounds. In this way we estimate the SSC and LHC sensitivities ...

The title compound, neodymium(III) oxide nitrate, which is isostructural with LaO(NO(3)), arose from a solvothermal reaction. The Nd ion (site symmetry m) is ten-coordinated by eight O atoms of NO(3) groups and two μ(2)-oxide ions. A three-dimensional structure is constructed by the inter-connection of NdO(10) polyhedra. The oxide ion and the N atom and one of the nitrate O atoms possess site s...

In the four-dimensional effective theory from string compactification discrete flavor symmetries arise from symmetric structure of the compactified space and generally contain both the R symmetry and non-R symmetry. We point out that a new type of non-Abelian flavor symmetry can also appear if the compact space is non-commutative. Introducing the dihedral group D4 as such a new type of flavor s...

A bstract Mandelstam-Leibbrandt (ML) regularization of Very Special Relativity (VSR) amplitudes in momentum space depends on two fixed null vectors n μ , $$ {\overline{n}}_{\mu } n ¯ μ besides external momenta. ML is known to pr...

Several approaches to QCD with two massless quarks at finite temperature T and baryon chemical potential μ suggest the existence of a tricritical point on the boundary of the phase with spontaneously broken chiral symmetry. In QCD with massive quarks there is then a critical point at the end of a first order transition line. We discuss possible experimental signatures of this point, which provi...

Many zero temperature transitions, involving the deviation in the value of a U(1) conserved charge from a quantized value, are described by the dilute Bose gas quantum critical point. On such transitions, we study the consequences of perturbations which break the symmetry down to ZN in d spatial dimensions. For the case d = 1, N = 2, we obtain exact, finite temperature, multicritical crossover ...

Radiatively-induced neutrino mass matrix is investigated within the framework of an SU(5) SUSY GUT model. The model has matter fields of three families 5L(+)i +5L(+)i in addition to the ordinary matter fields 5L(−)i +10L(+)i and Higgs fields H(+)+H(0), where (+, 0,−) denote the transformation properties (ω, ω, ω) (ω = +1) under a discrete symmetry Z3. R-parity violating terms are given by 5L(+)...

The title compound, catena-poly[[bis-(methanol-κO)nickel(II)]-di-μ-thio-cyanato-κ(4) N:S-mercurate(II)-di-μ-thio-cyanato-κ(4) N:S], was obtained from a gel-growth method using tetra-meth-oxy-silane as gelling agent. The crystal structure is composed of rather regular HgS4 tetra-hedra (point group symmetry .2.) and trans-NiN4O2 octa-hedra (point group symmetry 2..) that are linked through thio-c...

Abstract We show that a double seesaw framework for neutrino masses with μ − τ exchange symmetry can lead to one of the righthanded seesaw partners of the light neutrinos being massless. This can play the role of a light sterile neutrino, giving a 3 + 1 model that explains the LSND results. We get a very economical scheme, which makes it possible to predict the full 4× 4 neutrino mass matrix if...