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Experimental results of inclusive hard-process cross sections in heavy-ion collisions conventionally lean on a normalization computed from Glauber models where the inelastic nucleon-nucleon cross section $\sigma_{\rm nn}^{\rm inel}$ -- a…

High Energy Physics - Phenomenology · Physics 2020-11-25 Kari J. Eskola , Ilkka Helenius , Mikko Kuha , Hannu Paukkunen

Ridge-like correlations in high-energy proton-proton collisions reported by the CMS collaboration suggest a collective flow that resembles the one in heavy-ion collisions. If the hydrodynamic description is valid then the effect results…

High Energy Physics - Phenomenology · Physics 2015-12-01 Patryk Kubiczek , Stanislaw D. Glazek

Glauber models based on nucleon--nucleon interactions are commonly used to characterize the initial state in high-energy nuclear collisions, and the dependence of its properties on impact parameter or number of participating nucleons. In…

Nuclear Experiment · Physics 2017-10-18 Constantin Loizides

Our ultimate goal is the construction of a model for interactions of two nuclei in the energy range between several tens of GeV up to several TeV per nucleon in the centre-of-mass system. Such nuclear collisions are very complex, being…

High Energy Physics - Phenomenology · Physics 2007-05-23 H. J. Drescher , M. Hladik , S. Ostapchenko , K. Werner

Based on the recent experimental observations of the dominance of tensor interaction in the ~250-600~MeV/c momentum range of nucleons in nuclei, the existence of two new properties for high-momentum distribution of nucleons in asymmetric…

Nuclear Theory · Physics 2014-03-19 Misak M. Sargsian

We present a Monte-Carlo simulation of energy deposition process in relativistic heavy-ion collisions based on a new realization of the Interacting-Gluon-Model (IGM) for high energy $N-N$ collisions. In particular we show results for proton…

High Energy Physics - Phenomenology · Physics 2015-06-25 Q. J. Liu , W. Q. Chao , G. Wilk

This article gives an overview over recent results on quark and gluon helicity distributions obtained in deep inelastic lepton nucleon scattering and proton proton interactions. Future experimental programs to study the nucleon structure…

High Energy Physics - Experiment · Physics 2011-09-13 Joerg Pretz

Considering the high-energy limit of the QCD gluon distribution inside a nucleus, we calculate the proton-nucleus total inelastic cross section using a simplified dipole model. We show that, if gluon saturation occurs in the nuclear surface…

High Energy Physics - Phenomenology · Physics 2014-11-20 L. Portugal , T. Kodama

We present a new parton model approach for nuclear collisions at RHIC energies (and beyond). It is a selfconsistent treatment, using the same formalism for calculating cross sections like the total and the inelastic one and, on the other…

High Energy Physics - Phenomenology · Physics 2015-06-25 H. J. Drescher , M. Hladik , S. Ostapchenko , K. Werner

The experimental results on the relation between the number of events, the angular distributions of protons and full number of protons are presented for ${}^{12}CC$-interactions at the momentum of 4.2 A GeV/c. The influence of nuclear…

High Energy Physics - Experiment · Physics 2019-08-17 M. K. Suleymanov , O. B. Abdinov , N. S. Angelov , A. S. Vodopyanov , A. A. Kuznetsov , Z. Ya. Sadigov

The energy-dependence of charged particle mean multiplicity and pseudorapidity density at midrapidity measured in nucleus-nucleus and (anti)proton-proton collisions are studied in the entire available energy range. The study is performed…

High Energy Physics - Phenomenology · Physics 2010-12-15 Edward K. G. Sarkisyan , Alexander S. Sakharov

Color fluctuations in hadron-hadron collisions are responsible for the presence of inelastic diffraction and lead to distinctive differences between the Gribov picture of high energy scattering and the low energy Glauber picture. We find…

High Energy Physics - Phenomenology · Physics 2013-05-14 M. Alvioli , M. Strikman

In ultrarelativistic heavy-ion experiments, one estimates the centrality of a collision by using a single observable, say $n$, typically given by the transverse energy or the number of tracks observed in a dedicated detector. The…

The nucleus-nucleus impact parameter and collision geometry of a heavy ion collision are typically characterized by assigning a collision "centrality". In all present heavy ion experiments centrality is measured indirectly, by detecting the…

Nuclear Experiment · Physics 2015-06-19 Sourav Tarafdar , Zvi Citron , Alexander Milov

An impact parameter dependent unintegrated gluon distribution is constructed as a solution of a nonlinear evolution equation with realistic Glauber--Gribov input. Photon--jet correlations in the proton fragmentation region of pA collisions…

High Energy Physics - Phenomenology · Physics 2010-04-22 W. Schäfer

A model describing nuclear collisions at intermediate energies is presented and the results are compared with recently measured double differential cross sections in C-C reactions at 95 MeV/nucleon. Results show the key role played by…

Nuclear Theory · Physics 2016-08-24 Jérémie Dudouet , Dominique Durand

The inclusive distributions of gluons and pions are calculated with absolute normalization for high-energy nucleon-nucleon collisions. The results for several unintegrated gluon distributions from the literature are compared. The gluon…

High Energy Physics - Phenomenology · Physics 2007-05-23 Antoni Szczurek

The cross sections for a variety of channels of proton-nucleus interaction associated with large gaps in rapidity are calculated within the Glauber-Gribov theory. We found inelastic shadowing corrections to be dramatically enhanced for such…

High Energy Physics - Phenomenology · Physics 2009-11-11 B. Z. Kopeliovich , I. K. Potashnikova , Ivan Schmidt

The ratios of particle densities in lead-lead and proton-lead collisions to particle density in proton-proton collision in the central rapidity region at the LHC energy are predicted on the basis of wounded quark-diquark model.

High Energy Physics - Phenomenology · Physics 2008-12-19 Adam Bzdak

The concept of centrality in high-energy nuclear collisions has recently become a subject of an active debate. In particular, the experimental methods to determine the centrality that have given reasonable results for many observables in…

High Energy Physics - Phenomenology · Physics 2015-05-20 Hannu Paukkunen