Differential cross sections of elastic pd scattering in the energy range 10–70 GeV

We present tables of the absolute differential cross sections of elastic pd scattering. The cross-section data have been obtained at the Serpukhov accelerator from 10 to 70 GeV in the |t|-range 0.002–0.2 GeV²/c².The elastic pd scattering amplitude was parametrised as

$\text{A(+)=}\text{d}\text{σ}\text{d}\text{+}{}^{\mathrm{<mtext>1</mtext><mtext>2</mtext>}}{}_{\mathrm{<mtext>opt</mtext>}}\text{(i+α)}\text{exp}\text{1}\text{2}\text{(Bt+Ct}{}^2\text{)}$

The values $\text{α=}\text{Re}\text{A(0)}\text{Im}\text{A(0)}$,B and C are presented in these tables.     

Glued Langmuir-Blodgett bilayers from porous versus nonporous surfactants

Poly(4-styrenesulfonate) (PSS) has been used to ionically cross-link (glue together) single Langmuir-Blodgett bilayers derived from 1,2,4,5-tetrakis[N,N-dimethyl-N-(1-hexadecyl)-ammoniummethyl]benzene (2a) and tris(N,N-dimethyl-N-hexadecylammoniummethyl)mesitylene (3). The resulting films are of high quality as judged by He/N2 permeation selectivities of ca. 100. Such selectivity is well in excess of the Knudsen diffusion limit of 2.6 and approaches that which has been found for glued bilayers of 5,11,17,23,29,35-hexakis[(N,N,N-trimethylamonium)-N-methyl-37,38,39,40,41,42-hexakis-n-hexamedecyloxy-calix[6]arene hexachloride (1). The significance of these findings to LB technology, in general, is briefly discussed.     

Mott transition,compressibility divergence,and the P-T phase diagram of layered organic superconductors: an ultrasonic investigation

The phase diagram of the organic superconductor kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Cl has been investigated by ultrasonic velocity measurements under helium gas pressure. Different phase transitions were identified through several elastic anomalies characterized from isobaric and isothermal sweeps. Our data reveal two crossover lines that end on the critical point terminating the first-order Mott transition line. When the critical point is approached along these lines, we observe a dramatic anomaly of the sound velocity which is consistent with a diverging compressibility of the electronic degrees of freedom.     

Cones Admitting Strictly Positive Functionals and Scalarization of Some Vector Optimization Problems

This paper is concerned with cones admitting strictly positive functionals and scalarization methods in multiobjective optimization. Assuming that the ordering cone admits strictly positive functionals or possesses a base in normed spaces or is a supernormal cone in a Banach space, we give scalar and scalar proper representations for vector optimization problems with convex and naturally quasiconvex data.     

Inelastic effect of the ωπ0 channel on the pion form factor

It is shown that the enhancement in the poin form factor in the 1 ≈ 1.4 GeV region is due mostly to a fast energy defendence of the ratio R = σ (e⁺e^- → ωπ)/ σ(e⁺e^- → ππ). This result obtained in a model independent way.     

Resonance Raman spectrum of the I−3 ion and the phase transition in the organic metal TMAITCNQ

Resonance Raman spectra of single crystals of the organic metal TMAITCNQ exhibit strong resonances from the 1^?₃ ions. Overtones up to υ = 5 were readily observed. Temperature-dependent measurements reveal a sharp discontinuity of the fundamental intensity and of the linewidth of the first overtone at 150 K. These results indicate that the iodine ions are directly involved in the semiconductor to semiconductor phase transition which is known to occur at this temperature.     

Corner transfer matrices and conformal invariance

We study two-dimensional Ising systems at the critical point. Using conformal considerations we derive the spectrum of low-lying eigenvalues of Baxter's corner transfer matrix. Its relation to the spectrum of the usual transfer matrix, its scaling properties and the way the conformal anomaly enters, are discussed.