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Jul 26, 2012

Relevance of glueball bound states in the Yang-Mills plasma within a …

The strongly coupled phase of Yang-Mills plasma with gauge group SU(3) is studied in a $T$-matrix approach. The existence of lowest-lying glueballs, …
Oct 21, 2013
Statistical Mechanics

Universal features in the energetics of symmetry breaking

A symmetry breaking (SB) involves an abrupt change in the set of microstates that a system can explore. This change has unavoidable thermodynamic imp…
Jan 14, 2010

Black holes in modified gravity theories

In the context of $f(R)$ gravity theories, the issue of finding static and spherically symmetric black hole solutions is addressed. Two approaches to…
Sep 15, 2010

Singular and Regular Gauges in Soft Collinear Effective Theory: The …

Gauge invariance in soft-collinear effective theory (SCET) is discussed in regular (covariant) and singular (light-cone) gauges. It is argued that SC…
Nov 10, 2008

HCO mapping of the Horsehead : Tracing the illuminated dense molecula…

Far-UV photons strongly affect the physical and chemical state of molecular gas in the vicinity of young massive stars. We have obtained maps of the …
Jul 03, 2014
Mathematical Physics
Numerical Analysis

On the construction of partial difference schemes II: discrete variab…

In the process of constructing invariant difference schemes which approximate partial differential equations we write down a procedure for discretizi…
Sep 16, 2015

Resonances in W_L W_L, Z_L Z_L and hh scattering from dispersive an…

If new resonances of the electroweak symmetry breaking sector (longitudinal-gauge and Higgs) bosons are found in the 1-3 TeV region, the right tool t…
Jul 05, 2016

Top-antitop production from $W_L^+ W_L^-$ and $Z_L Z_L$ scattering un…

By using a Non-linear Electroweak Chiral Lagrangian, including the Higgs, coupled to heavy quarks, and the Equivalence Theorem, we compute (in the re…
Feb 27, 2011
Mathematical Physics
Exactly Solvable and Integrable Systems

Quantum mechanics on spaces of nonconstant curvature: the oscillator …

The full spectrum and eigenfunctions of the quantum version of a nonlinear oscillator defined on an N-dimensional space with nonconstant curvature ar…
May 02, 2018
Optics

Atom-diffraction from surfaces with defects: A Fermatian, Newtonian a…

Bohmian mechanics, widely known within the field of the quantum foundations, has been a quite useful resource for computational and interpretive purp…
May 21, 2009

Chiral Extrapolations of light resonances from dispersion relations a…

We review our recent study of the pion mass dependence of the rho and sigma resonances generated from one-loop SU(2) Chiral Perturbation Theory (ChPT…
Apr 17, 2009
Optics

Cascaded Nondegenerate Four-Wave Mixing Technique for High-Power Si…

We present a new technique to synthesize high-power single-cycle pulses in the visible and ultraviolet ranges by coherent superposition of a multiban…
Mar 06, 2008
Statistical Mechanics
Exactly Solvable and Integrable Systems

The Polychronakos-Frahm spin chain of BC_N type and Berry-Tabor's c…

We compute the partition function of the su(m) Polychronakos-Frahm spin chain of BC_N type by means of the freezing trick. We use this partition func…
Jan 11, 2011

On the electromagnetic nature of dark energy and the origin of cosmic…

In this work we consider quantum electromagnetic fields in an expanding universe. We start by reviewing the difficulties found when trying to impose …
Feb 23, 2017
Mathematical Physics

Phase space and phase transitions in the Penner matrix model with n…

The partition function of the Penner matrix model for both positive and negative values of the coupling constant can be explicitly written in terms o…
Nov 10, 2010

Formation and evolution of dwarf early-type galaxies in the Virgo c…

We present new medium resolution kinematic data for a sample of 21 dwarf early-type galaxies (dEs) mainly in the Virgo cluster, obtained with the WHT…
Jul 30, 2013

The Chelyabinsk superbolide: a fragment of asteroid 2011 EO40?

Bright fireballs or bolides are caused by meteoroids entering the Earth's atmosphere at high speed. On 2013 February 15, a superbolide was observed i…
Jul 17, 2015
Statistical Mechanics

A new entropy based on a group-theoretical structure

A multi-parametric version of the nonadditive entropy $S_{q}$ is introduced. This new entropic form, denoted by $S_{a,b,r}$, possesses many interesti…
Feb 21, 2017

In this letter, we have provided complete discussion on the matching of transverse momentum dependent (TMD) distributions to the twist-2 integrated distributions in the regime of small-b (or equivalently, large-qT). To perform the matching we have e…

Twist-2 matching of transverse momentum dependent distributions

We systematically study the large-$q_T$ (or small-$b$) matching of transverse momentum dependent (TMD) distributions to the twist-2 integrated parton…
Jan 23, 2015
Dynamical Systems
Mathematical Physics
Exactly Solvable and Integrable Systems

Nilpotent integrability, reduction of dynamical systems and a third…

We present an algebraic formulation of the notion of integrability of dynamical systems, based on a nilpotency property of its flow: it can be explic…
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