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568 papers · 1 filter
A Megaxion at 750 GeV as a First Hint of Low Scale String Theory
Luis E. Ibanez, Victor Martin-Lozano
Low scale string models naturally have axion-like pseudoscalars which couple directly to gluons and photons (but not s) at tree level. We show how they typically get tree level…
The maximum penalty criterion for ridge regression: application to the calibration of the force constant in elastic network models
Ugo Bastolla, Yves Dehouck
Multivariate regression is a widespread computational technique that may give meaningless results if the explanatory variables are too numerous or highly collinear. Tikhonov regula…
Phase behaviour and correlations of parallel hard squares: From highly confined to bulk systems
Miguel Gonzalez-Pinto, Yuri Martinez-Raton, Szabolcs Varga +2
We study a fluid of two-dimensional parallel hard squares in bulk and under confinement in channels, with the aim of evaluating the performance of Fundamental-Measure Theory (FMT).…
Non-Abelian, supersymmetric black holes and strings in 5 dimensions
Patrick Meessen, Tomas Ortin, Pedro Fernandez-Ramirez
We construct and study the first supersymmetric black-hole and black-string solutions of non-Abelian-gauged N=1,d=5 supergravity (N=1,d=5 Super-Einstein-Yang-Mills theory) with non…
Global Analyses of Neutrino Oscillation Experiments
M. C. Gonzalez-Garcia, Michele Maltoni, Thomas Schwetz
We summarize the determination of some neutrino properties from the global analysis of solar, atmospheric, reactor, and accelerator neutrino data in the framework of three-neutrino…
Origin of the Metallicity Distribution in the Thick Disc
Maider S. Miranda, Kate Pilkington, Brad K. Gibson +9
Aims. Using a suite of cosmological chemodynamical disc galaxy simulations, we assess how (a) radial metallicity gradients evolve with scaleheight; (b) the vertical metallicity gra…