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The chiral condensate in QCD at zero temperature does not depend on the quark chemical potential (up to one third the nucleon mass), whereas the spectral density of the Dirac operator shows a strong dependence on the chemical potential. The…

High Energy Physics - Theory · Physics 2009-02-23 J. C. Osborn , K. Splittorff , J. J. M. Verbaarschot

A phenomenological model for the description of the single and double diffractive excitation in $pp$ collisions at high energies is presented. Considering the Good -- Walker approach, we propose a model for the eigenstates of the scattering…

High Energy Physics - Phenomenology · Physics 2020-05-14 M. Broilo , V. P. Goncalves , P. V. R. G. Silva

The fundamental relations in the dynamics of single diffraction dissociation and elastic scattering at high energies are discussed.

High Energy Physics - Phenomenology · Physics 2016-11-23 A. A. Arkhipov

A model based on Gribov's Regge calculus was developed [1] and was proposed to describe diffractive processes. In this note we present numerical vales obtained from [1] for the dependence of single diffraction cross-section on diffractive…

High Energy Physics - Phenomenology · Physics 2012-08-07 M. G. Poghosyan

In-plane angular dependent resistivity ADR was measured in the non-Fermi liquid regime of CeCoIn$_5$ single crystals at temperatures $T \le 20$ K and in magnetic fields $H$ up to 14 T. Two scaling behaviors were identified in low field…

Strongly Correlated Electrons · Physics 2007-05-23 T. Hu , H. Xiao , T. A. Sayles , M. B. Maple , Kazumi Maki , B. Dora , C. C. Almasan

We present a description of inclusive and diffractive structure functions in DIS at small $x$, using a model based on high energy factorization. In this model the two processes have physical interpretation in terms of the virtual photon…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. Golec-Biernat

We present a comprehensive study of the production of top quark pairs in association with one hard jet in the di-lepton decay channel at the LHC. Our predictions, accurate at NLO in QCD, focus on the LHC Run II with a center-of-mass energy…

High Energy Physics - Phenomenology · Physics 2016-11-28 G. Bevilacqua , H. B. Hartanto , M. Kraus , M. Worek

We discuss effects of reflective scattering for hadron and heavy nuclei collisions at the LHC and asymptotical energies. It is shown that the reflective scattering might lead to decreasing matter density with energy beyond the LHC energies.…

High Energy Physics - Phenomenology · Physics 2009-09-23 Sergey Troshin , Nikolay Tyurin

We consider dephasing by interactions in a one-dimensional chiral fermion system (e.g. a Quantum Hall edge state). For finite-range interactions, we calculate the spatial decay of the Green's function at fixed energy, which sets the…

Mesoscale and Nanoscale Physics · Physics 2009-03-17 Clemens Neuenhahn , Florian Marquardt

We investigate the azimuthal distribution of quark-antiquark jets in DIS diffractive dissociation with large transverse momentum. In this kinematical region the matrix element is expressed in terms of the gluon structure function. For the…

High Energy Physics - Phenomenology · Physics 2014-11-17 J. Bartels , C. Ewerz , H. Lotter , M. Wuesthoff

The differential cross-section of elastic proton-proton collisions is studied at ISR and LHC energies, utilizing a quark-diquark model, that generalizes earlier models of Bialas and Bzdak, and, in addition, a model of Glauber and Velasco.…

High Energy Physics - Phenomenology · Physics 2013-11-12 T. Csorgo , R. J. Glauber , F. Nemes

The LHC has brought much new information on total, elastic and diffractive cross sections, which is not always in agreement with extrapolations from lower energies. The default framework in the Pythia event generator is one case in point.…

High Energy Physics - Phenomenology · Physics 2018-07-04 Christine O. Rasmussen , Torbjörn Sjöstrand

Azimuthal distributions in high-energy processes give information about the helicity structure of diffractive reactions. I discuss predictions of several dynamical mechanisms in this context, both for electron-proton and for hadron-hadron…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Diehl

Diffusion-limited cluster aggregation (DLCA) is a well established model for the formation of highly porous low-density non-equilibrium structures. One of the main conclusions of the previous studies considering this model is that the…

Soft Condensed Matter · Physics 2019-01-15 Swetlana Jungblut , Jan-Ole Joswig , Alexander Eychmüller

We study the phase structures of charge neutral quark matter under the beta-equilibrium for a wide range of the quark-quark coupling strength within a four-Fermion model. A comprehensive and unified picture for the phase transitions from…

High Energy Physics - Phenomenology · Physics 2008-11-26 H. Abuki , T. Kunihiro

We investigate numerically the localization-delocalization transition in quantum Hall systems with long-range disorder potential with respect to multifractal properties. Wavefunctions at the transition energy are obtained within the…

Condensed Matter · Physics 2009-10-28 Rochus Klesse , Marcus Metzler

We show that eikonal corrections imposed on diffraction dissociation processes calculated in the triple Regge limit, produce a radical change in the energy dependence of the predicted cross section. The induced correction is shown to be in…

High Energy Physics - Phenomenology · Physics 2009-12-30 E. Gotsman , E. M. Levin , U. Maor

The expected resonance structure for the low-mass single diffractive states from a Regge-dual model elaborated paper by the present authors in a previous is predicted. Estimates for the observable low-mass single diffraction dissociation…

High Energy Physics - Phenomenology · Physics 2015-05-28 Laszlo Jenkovszky , Oleg Kuprash , Jerry Lämsä , Risto Orava

The temperature dependence of quark and gluon condensates in QCD as precursor of the chiral and deconfining phase transition is modelled with a conformally extended non-linear sigma-model including broken chiral and scale invariance. The…

High Energy Physics - Phenomenology · Physics 2009-10-30 N. O. Agasian , D. Ebert , E. -M. Ilgenfritz

In this paper we study the inclusive and diffractive double quarkonium production. Based on the nonrelativistic QCD (NRQCD) factorization formalism for the quarkonium production mechanism we estimate the rapidity and transverse momentum…

High Energy Physics - Phenomenology · Physics 2018-06-12 C. Brenner Mariotto , V. P. Goncalves , R. Palota da Silva