English
Related papers

Related papers: Pseudo-critical clusterization in nuclear multifra…

200 papers

A method is presented that allows exact calculations of fragment multiplicity distributions for a canonical ensemble of non-interacting clusters. Fragmentation properties are shown to depend on only a few parameters. Fragments are shown to…

Nuclear Theory · Physics 2009-10-31 Scott Pratt , Subal Das Gupta

The hypothesis of limiting fragmentation (LF) or it is called otherwise recently, as extended longitudinal scaling, is an interesting phenomena in high energy multiparticle production process. This paper discusses about different regions of…

High Energy Physics - Phenomenology · Physics 2019-04-17 Pragati Sahoo , Pooja Pareek , Swatantra Kumar Tiwari , Raghunath Sahoo

The statistical behavior of the size (or mass) of the largest cluster in subcritical percolation on a finite lattice of size $N$ is investigated (below the upper critical dimension, presumably $d_c=6$). It is argued that as $N \to \infty$…

Statistical Mechanics · Physics 2009-10-31 Martin Z. Bazant

The measured pseudorapidity distributions of primary charged particles over a wide pseudorapidity range of |eta| < 5.4 and integrated charged particle multiplicities in d+Au collisions at sqrt(s_NN) = 200 GeV are presented as a function of…

Nuclear Experiment · Physics 2008-11-26 the PHOBOS Collaboration , B. B. Back

We simulate the fragmentation processes in the {$\alpha$~$+$~Au~} collisions at a bombarding energy of 5 GeV/u using the simplified RQMD approach plus the statistical decay model. We find from the simulation that the angular-distribution of…

Nuclear Theory · Physics 2009-10-28 Tomoyuki Maruyama

The kinematical characteristics of fragments and light particles observed in central highly fragmented nuclear collisions at intermediate energies are compared with the results of a model assuming that the initial momentum distribution of…

Nuclear Experiment · Physics 2007-05-23 A. Van Lauwe , D. Durand et al

The influence of shape of expanding and rotating source on various characteristics of the multifragmentation process is studied. The analysis is based on the extension of the statistical microcanonical multifragmentation model. The…

Nuclear Theory · Physics 2007-05-23 A. Le Fevre , M. Ploszajczak , V. D. Toneev

Nuclear multifragmentation process can be viewed as a recombination of nucleons into clusters of various sizes. In a combinatorial analysis, various moments of cluster size distribution appear to be quite simple in terms of canonical…

Nuclear Theory · Physics 2007-05-23 Suk-Joon Lee

A clustering aspect is explained for the $^9$Be nucleus in charged-lepton deep inelastic scattering. Nuclear modifications of the structure function $F_2$ are studied by the ratio $R_{\rm EMC} = F_2^A /F_2^D$, where $A$ and $D$ are a…

High Energy Physics - Phenomenology · Physics 2015-06-22 M. Hirai , S. Kumano , K. Saito , T. Watanabe

The fluctuations of the largest fragment charge of a partition and of the charge asymmetries of the two or three largest fragments in spectator decays following 197Au + 197Au collisions at 1000 MeV per nucleon are investigated. The observed…

Nuclear Experiment · Physics 2007-05-23 W. Trautmann , the ALADIN Collaboration

We study the size properties of the largest intermediate mass fragments in each partition mode, produced in the prompt statistical breakup of a thermally equilibrated nuclear source, at different temperatures. We find that an appreciable…

Nuclear Theory · Physics 2020-04-28 S. R. Souza , R. Donangelo

We show that the size distributions of fragments created by high energy nuclear collisions are remarkably well reproduced within the framework of a parameter free percolation model. We discuss two possible scenarios to explain this…

Statistical Mechanics · Physics 2009-10-31 X. Campi , H. Krivine , E. Plagnol , N. Sator

We perform a systematic study of the fragmentation path of excited nuclear matter in central heavy ion collisions at the intermediate energy of $0.4 AGeV$. The theoretical calculations are based on a Relativistic Boltzmann-Uehling-Uhlenbeck…

Nuclear Theory · Physics 2009-11-11 E. Santini , T. Gaitanos , M. Colonna , M. Di Toro

We develop an improved Statistical Multifragmentation Model that provides the capability to calculate calorimetric and isotopic observables with precision. With this new model we examine the influence of nuclear isospin on the fragment…

Nuclear Experiment · Physics 2009-11-10 W. P. Tan , S. R. Souza , R. J. Charity , R. Donangelo , W. G. Lynch , M. B. Tsang

Saturation of small-x gluons in a nucleus, which has the form of transverse momentum broadening of projectile gluons in pA collisions in the nuclear rest frame, leads to a modification of the parton distribution functions in the beam…

High Energy Physics - Phenomenology · Physics 2011-03-03 B. Z. Kopeliovich , H. J. Pirner , I. K. Potashnikova , Ivan Schmidt

We present a brief overview of nuclear multifragmentation reaction. Basic formalism of canonical thermodynamical model based on equilibrium statistical mechanics is described. This model is used to calculate basic observables of nuclear…

Nuclear Theory · Physics 2020-09-03 G. Chaudhuri , S. Mallik , S. Das Gupta

Multifragmentation of a ``fused system'' was observed for central collisions between 32 MeV/nucleon 129Xe and natSn. Most of the resulting charged products were well identified thanks to the high performances of the INDRA 4pi array.…

Nuclear Experiment · Physics 2019-08-17 B. Borderie , G. Tabacaru , Ph. Chomaz , M. Colonna , A. Guarnera , M. Parlog , M. F Rivet , the INDRA Collaboration

The study of the peculiarities of the distribution of secondary particles depending on the degree centrality and the degree of asymmetry of the interacting nuclei, is performed. The number of multicharged fragments of the projectile nucleus…

Nuclear Theory · Physics 2014-11-04 A. Sh. Gaitinov , I. A. Lebedev , A. I. Fedosimova

Signals of bimodality have been investigated in experimental data of quasi-projectile decay produced in Au+Au collisions at 35 AMeV. This same data set was already shown to present several signals characteristic of a first order,…

Nuclear Experiment · Physics 2007-05-23 M. Bruno , F. Gulminelli , F. Cannata , M. D'Agostino , F. Gramegna , G. Vannini

The centrality and system size dependence of multiplicity fluctuations of charged particles produced in nuclear collisions at $158 A$ GeV was studied by the NA49 collaboration. Centrality selected Pb+Pb collisions, semi-central C+C and…

Nuclear Experiment · Physics 2014-03-03 NA49 Collaboration