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Based on the path integral representation of the partition function of a many body system with separable two body interaction we propose a systematic extension of the perturbed static path approximation (PSPA) to lower temperatures.…

Statistical Mechanics · Physics 2009-11-07 Christian Rummel , Joachim Ankerhold

We present a new method for the calculation of fragment size correlations in a discrete finite system in which correlations explicitly due to the finite extent of the system are suppressed. To this end, we introduce a combinatorial model,…

Nuclear Experiment · Physics 2009-11-07 Pierre Desesquelles

In this paper we present a two-dimensional numerical simulation of a reconnection current layer in incompressible resistive magnetohydrodynamics with uniform resistivity in the limit of very large Lundquist numbers. We use realistic…

Plasma Physics · Physics 2007-05-23 Dmitri A. Uzdensky , Russell M. Kulsrud

Measurements at LHC show an increased production of strange hadrons with charged multiplicity in pp collisions, which is not described by the Lund String Model (with the Monash tune) implemented in PYTHIA. This work investigates string…

High Energy Physics - Phenomenology · Physics 2026-05-01 Javira Altmann , Lorenzo Bernardinis , Peter Skands , Valentina Zaccolo

Using the molecular dynamics method, we examine a discrete deterministic model for the motion of spherical particles in three-dimensional space. The model takes into account multiparticle collisions in arbitrary forms. Using fractional…

Computational Physics · Physics 2007-05-23 Jacek S. Leszczynski

Models based on soft colour exchanges to rearrange colour strings in the final state provide a general framework for both diffractive and non-diffractive events in ep and hadron-hadron collisions. We study two such models and find that they…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. Enberg , G. Ingelman , N. Timneanu

The concept of multiple partonic interactions in hadronic events is vital for the understanding of both minimum-bias and underlying-event physics. The area is rather little studied, however, and current models offer a far from complete…

High Energy Physics - Phenomenology · Physics 2010-02-17 Richard Corke , Torbjörn Sjöstrand

The aim of this work is to explore possible medium modifications to the substructure of inclusive charged jets in Pb-Pb relative to proton-proton collisions by measuring a set of jet shapes. The set of shapes includes the radial moment,…

Nuclear Experiment · Physics 2019-08-13 Leticia Cunqueiro

The recent anomalous segregation experiment of Lewandowski et al. (PRL, 88, 070403, 2002) shows dramatic, rapid internal state segregation for two hyperfine levels of rubidium. We simulate an effective one dimensional model of the system…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 A. S. Bradley , C. W. Gardiner

The thermalization of the particles produced in collisions of small size objects can be achieved by quantum entanglement of the partons of the initial state as it was analyzed recently in proton-proton collisions. We extend such study to…

High Energy Physics - Phenomenology · Physics 2019-01-30 X. Feal , C. Pajares , R. A. Vazquez

We define a new strategy to scan jet substructure in heavy-ion collisions. The scope is multifold: (i) test the dominance of vacuum jet dynamics at early times, (ii) capture the transition from coherent to incoherent jet energy loss, and…

High Energy Physics - Phenomenology · Physics 2024-09-05 Leticia Cunqueiro , Daniel Pablos , Alba Soto-Ontoso , Martin Spousta , Adam Takacs , Marta Verweij

A system of periodically coupled nonlinear phase oscillators submitted to both additive and multiplicative white noises has been recently shown to exhibit ratchetlike transport, negative zero-bias conductance, and anomalous hysteresis.…

Statistical Mechanics · Physics 2009-11-07 H. S. Wio , S. E. Mangioni , R. R. Deza

Recent advances in levitated optomechanics provide new perspectives for the use of rotational degrees of freedom for the development of quantum technologies as well as for testing fundamental physics. As for the translational case, their…

Quantum Physics · Physics 2021-03-30 Matteo Carlesso , Hamid Reza Naeij , Angelo Bassi

We develop here a simple yet versatile model for nuclear fragmentation in heavy ion collisions. The model allows us to calculate thermodynamic properties such as phase transitions as well as the distribution of fragments at disassembly. In…

Nuclear Theory · Physics 2016-09-08 Jicai Pan , Subal Das Gupta

Using the Moshinsky model, we analyze the spatial correlation and the entanglement of the ground state across different bipartitions of a system composed by $N$ pairs of harmonically confined fermions of two different interacting species.…

Quantum Physics · Physics 2025-05-27 M. D. Jiménez , W. J. Díaz , E. Cuestas , A. Valdés-Hernández , A. P. Majtey

By studying p-p collisions we hope to improve our understanding of the fundamental constituents of matter and how they form into colorless objects. Measurements of the inclusive jet cross-sections and fragmentation properties have confirmed…

Nuclear Experiment · Physics 2009-10-28 Helen Caines

A global Bayesian analysis of relativistic Pb + Pb collisions at $\sqrt{s}_{\rm NN}$ = 2.76 TeV is performed, using a multistage model consisting of an IP-Glasma initial state, a viscous fluid dynamical evolution, and a hadronic transport…

Nuclear Theory · Physics 2024-06-24 Matthew R. Heffernan , Charles Gale , Sangyong Jeon , Jean-François Paquet

We have previously introduced a hybrid strong/weak coupling model for jet quenching in heavy ion collisions that describes the production and fragmentation of jets at weak coupling, using PYTHIA, and describes the rate at which each parton…

High Energy Physics - Phenomenology · Physics 2016-04-20 Jorge Casalderrey-Solana , Doga Can Gulhan , José Guilherme Milhano , Daniel Pablos , Krishna Rajagopal

The parton recombination model has turned out to be a valuable tool to describe hadronization in high energy heavy ion collisions. I review the model and revisit recent progress in our understanding of hadron correlations. I also discuss…

Nuclear Theory · Physics 2009-11-11 Rainer J. Fries

We show that the interband dynamics in a tilted two-band Bose-Hubbard model can be reduced to an analytically accessible spin model in the case of resonant interband oscillations. This allows us to predict the revival time of these…

Quantum Physics · Physics 2010-12-21 Patrick Plötz , Peter Schlagheck , Sandro Wimberger