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Related papers: Introduction to Low x Physics and Saturation

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We apply the relativistic chiral Lagrangian to the nuclear equation of state. An effective chiral power expansion scheme, which is constructed to work around nuclear saturation density, is presented. The leading and subleading terms are…

Nuclear Theory · Physics 2007-05-23 Matthias Lutz

We introduce a saturation model for photon-photon interactions, based on a QCD dipole picture of high energy scattering. The two-dipole cross-section is assumed to satisfy the saturation property. This pomeron-like contribution is…

High Energy Physics - Phenomenology · Physics 2007-05-23 N. Timneanu , J. Kwiecinski , L. Motyka

Atomic number ($A$) and energy ($\roots$) scaling exponents of multiplicity and transverse energy in heavy ion collisions are analytically derived in the perturbative QCD + saturation model. The exponents depend on the small-$x$ behaviour…

High Energy Physics - Phenomenology · Physics 2014-11-17 K. J. Eskola , K. Kajantie , K. Tuominen

The following lectures are an introduction to the phenomena of partonic saturation and nonlinear evolution equations in Quantum Chromodynamics. After a short introduction to the linear evolution, the problems of unitarity bound and parton…

High Energy Physics - Phenomenology · Physics 2014-11-18 A. M. Stasto

Constraints on the EoS for symmetric matter (equal neutron and proton numbers) at supra-saturation densities have been extracted from energetic collisions of heavy ions. Collisions of neutron-deficient and neutron-rich heavy ions now…

Nuclear Experiment · Physics 2015-05-13 W. G. Lynch , M. B. Tsang , Y. Zhang , P. Danielewicz , M. Famiano , Z. Li , A. W. Steiner

A recent suggested definition of a relativistically correct three dimensional charge density of an extended hadron is shown to be physically and intuitively connected to an earlier relativistically correct two dimensional charge density…

High Energy Physics - Phenomenology · Physics 2023-10-24 Carl E. Carlson

This chapter provides an introduction to collider phenomenology, explaining how theoretical concepts are translated into experimental analyses at the Large Hadron Collider (LHC). Beginning with the principles of collider operation and…

High Energy Physics - Phenomenology · Physics 2025-10-07 Michael Spannowsky

The Large Hadron Electron Collider (LHeC) project is the proposal to use the existing LHC proton/ion beams and construct a new electron beam line to perform high-energy electron-proton/ion collisions. In this talk, we consider some of the…

High Energy Physics - Phenomenology · Physics 2015-10-02 Ilkka Helenius , Hannu Paukkunen , Néstor Armesto

Studies of fragmentation and parton density functions are a core component of researchin high energy particle and nuclear physics. These quantities are inherently interestingas a probe of the quantum nature of the strong force and are also…

High Energy Physics - Phenomenology · Physics 2021-08-27 Benjamin Nachman , Katarzyna Wichmann , Pia Zurita

Over the last Century the method of particle acceleration to high energies has become the prime approach to explore the fundamental nature of matter in laboratory. It appears that the latest search of the contemporary accelerator based on…

High Energy Physics - Phenomenology · Physics 2012-11-12 T. Tajima , K. Homma

Relativistic heavy ion collisions produce thousands of particles, and it is sometimes difficult to believe that these processes allow for a theoretical description directly in terms of the underlying theory - QCD. However once the parton…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Kharzeev

At ultra-relativistic energies the minijet production in heavy-ion collisions becomes sensitive to semi-hard parton rescatterings in the initial stages of the process. As a result global characteristics of the event, like the initial…

High Energy Physics - Phenomenology · Physics 2009-11-07 Alberto Accardi

Saturation is expected to occur when a high density of partons (mainly gluons)- or equivalently strong fields in Quantum Chromodynamics (QCD) - is realized in the weak coupling regime. A way to reach saturation is through the high-energy…

High Energy Physics - Phenomenology · Physics 2009-11-11 Robi Peschanski

Nuclear saturation is a crucial feature in nuclear physics that plays a fundamental role in understanding various nuclear phenomena, ranging from properties of finite nuclei to those of neutron stars. However, a proper description of…

Nuclear Theory · Physics 2024-05-24 Wei-Jiang Zou , Jun-Xu Lu , Peng-Wei Zhao , Li-Sheng Geng , Jie Meng

High-occupancy QCD matter enters a saturated regime when its entropy or occupancy approaches the unitarity bound $\sim 1/\alpha$, the ``saturon" criterion. We test this criterion for protons and nuclei at small $x$ using analytic and…

High Energy Physics - Phenomenology · Physics 2026-02-13 Wei Kou , Xurong Chen

The equation of state of hadronic matter in neutron stars is briefly reviewed. Uncertainties regarding the stiffness and composition of hadronic matter are discussed. Importance of poorly known short range interactions of nucleons and…

Astrophysics · Physics 2007-05-23 Marek Kutschera

Experimental data on inclusive cross sections of the hadrons produced in high energy proton-(anti)proton collisions are analyzed in the z-scaling approach. Saturation of the scaling function PSI(z) for z<0.1 (low transverse momenta) was…

High Energy Physics - Phenomenology · Physics 2011-01-19 I. Zborovský , M. V. Tokarev

Progresses towards the calculation and the understanding of NLO/NLL contributions to Deep Inelastic Scattering at low x with gluon saturation are being reviewed.

High Energy Physics - Phenomenology · Physics 2015-06-03 Guillaume Beuf

Saturation at low x appears as an almost unavoidable consequence of the two-gluon exchange generic structure. Consistency of the ansatz for the vector part of the color dipole cross section with conventional evolution determines the energy…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Schildknecht

We review recent calculations of the probability that a hard parton radiates an additional energy fraction due to scattering in spatially extended matter, and we discuss their application to the suppression of leading hadron spectra in…

High Energy Physics - Phenomenology · Physics 2017-08-23 Urs Achim Wiedemann