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37 papers · 1 filter
Parallel Connections Over Symmetric Spaces
Luis Guijarro, Lorenzo Sadun, Gerard Walschap
Let M be a simply connected Riemannian symmetric space, with at most one flat direction. We show that every Riemannian (or unitary) vector bundle with parallel curvature over M is…
Excited States in 52Fe and the Origin of the Yrast Trap at I=12+
C. A. Ur, D. Bucurescu, S. M. Lenzi +15
Excited states in 52Fe have been determined up to spin 10\hbar in the reaction 28Si + 28Si at 115 MeV by using γ-ray spectroscopy methods at the GASP array. The excitation energy o…
Two photons decay of the glueball and scalar isoscalar mesons in a scaled NJL model
M. Jaminon, B. Van den Bossche
We use a modified version of the Nambu--Jona-Lasinio model which implements the QCD trace anomaly to calculate the two photons decay width of the glueball (f_0(1500)) and of the tw…
A global descriptor of spatial pattern interaction in the galaxy distribution
Martin Kerscher, Maria Jesus Pons-Borderia, Jens Schmalzing +4
We present the function J as a morphological descriptor for point patterns formed by the distribution of galaxies in the Universe. This function was recently introduced in the fiel…
Killings, Duality and Characteristic Polynomials
E. Alvarez, J. Borlaf, J. H. León
In this paper the complete geometrical setting of (lowest order) abelian T-duality is explored with the help of some new geometrical tools (the reduced formalism). In particular, a…
On the statistical significance of the conductance quantization
E. Bascones, G. Gomez-Santos, J. J. Saenz
Recent experiments on atomic-scale metallic contacts have shown that the quantization of the conductance appears clearly only after the average of the experimental results. Motivat…