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Nuclear symmetry energy is a fundamental quantity currently under intense investigation in both nuclear physics and astrophysics. The {\it softness} or {\it stiffness} of symmetry energy is still under debate and the extraction of symmetry…

Nuclear Theory · Physics 2023-08-11 Shuo Yang , Ruijia Li , Chang Xu

Clustering is one of the most complex phenomena known to the structure of atomic nuclei. A comprehensive description of this ubiquitous phenomenon goes beyond standard shell model and cluster model frameworks. We argue that clustering is a…

Nuclear Theory · Physics 2015-06-04 J. Okolowicz , M. Ploszajczak , W. Nazarewicz

It is theoretically and experimentally argued that there may exist bubble or toroid-shaped configurations in some nucleus systems. Based on the nuclear transport model, it is shown that compared with the collision of normal nuclei, there is…

Nuclear Theory · Physics 2016-05-25 Gao-Chan Yong

The formation of alpha-clusters in nuclei close to the decay thresholds is discussed. These states can be considered to be boson-condensates, which are formed in a second order phase transition in a mixture of nucleons and alpha-particles.…

Nuclear Experiment · Physics 2015-05-18 Wolfram von Oertzen

This is the text of a talk given at the Inaugural Conference of the Asia Pacific Center for Theoretical Physics, Seoul, Korea, June 9, 1996. If nature is described by string theory, and if the compactification radius is large (as suggested…

High Energy Physics - Theory · Physics 2007-05-23 T. Banks , M. Dine

The long-range $p_t$ and multiplicity($n$) correlations in high-energy nuclear collisions are studied in the framework of a simple cellular analog of the string fusion model. Two cases with local and global string fusion is considered. The…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. V. Vechernin , R. S. Kolevatov

In models for hadron collisions based on string hadronization, the strings are usually treated as independent, allowing no interaction between the confined colour fields. In studies of nucleus collisions it has been suggested that strings…

High Energy Physics - Phenomenology · Physics 2015-02-16 Christian Bierlich , Gösta Gustafson , Leif Lönnblad , Andrey Tarasov

We present the first ab initio molecular dynamics study of collisions between metal-oxide clusters and surfaces. The resulting trajectories reveal that the internal degrees of freedom of the cluster play a defining role in collision…

Materials Science · Physics 2008-04-10 Daniel A. Freedman , T. A. Arias

Coupling of cluster and deformed structures are important for dynamics of nuclear structure. Threshold energy has been discussed to explain cluster structures coupling to deformed states but relation between threshold energy and excitation…

Nuclear Theory · Physics 2019-06-12 Yasutaka Taniguchi

The observed pT-dependence of nuclear effects for J/Psi produced in heavy ion collisions at RHIC might look puzzling, since the nuclear suppression seems to fade at large pT. We explain this by the interplay of three mechanisms: (i)…

Nuclear Theory · Physics 2014-11-21 B. Z. Kopeliovich , I. K. Potashnikova , Ivan Schmidt

Nuclear shadowing and color glass condensate are possible only at sufficiently small x where parton clouds of different nucleons overlap in the longitudinal direction. Another condition vital for these effect, an overlap of partons in…

High Energy Physics - Phenomenology · Physics 2010-11-30 B. Z. Kopeliovich , B. Povh

As the density of matter increases, atomic nuclei disintegrate into nucleons and, eventually, the nucleons themselves disintegrate into quarks. The phase transitions (PT's) between these phases can vary from steep first order to smooth…

Nuclear Theory · Physics 2017-09-29 Veronica Dexheimer , Matthias Hempel , Igor Iosilevskiy , Stefan Schramm

Anomalous centrality evolution of two-particle angular correlations observed in Au-Au collisions at $\sqrt{s_{NN}} = 62$ and 200 GeV and the onset of ridge structures are considered in the model of interacting quark-gluon strings. We assume…

High Energy Physics - Phenomenology · Physics 2015-02-12 Grigory Feofilov , Igor Altsybeev , Olga Kochebina

To study the interplay of jamming, cluster formation, and motility-induced phase separation in the zero temperature limit in two dimensions, we consider a simple model system consisting of a bidisperse mixture of disks that are only subject…

Soft Condensed Matter · Physics 2023-06-16 Michael Schmiedeberg

We propose a method to experimentally study the equation of state of strongly interacting matter created at the early stage of nucleus--nucleus collisions. The method exploits the relation between relative entropy and energy fluctuations…

High Energy Physics - Phenomenology · Physics 2009-11-10 M. Gazdzicki , M. I. Gorenstein , St Mrowczynski

We study the production of cc~ pairs in nuclear reactions at SPS energies within the covariant transport approach HSD. The production of cc~ is treated perturbatively employing experimental cross sections while the interactions of cc~ pairs…

Nuclear Theory · Physics 2008-11-26 J. Geiss , C. Greiner , E. L. Bratkovskaya , W. Cassing , U. Mosel

A great deal of research work has been undertaken in the alpha-clustering study since the pioneering discovery, half a century ago, of 12C+12C molecular resonances. Our knowledge of the field of the physics of nuclear molecules has…

We discuss the energy dependence of hadron production in relativistic nucleus-nucleus collisions. Several `anomalies' in the energy dependence have been predicted as signals of the deconfinement phase transition and three of these signals…

High Energy Physics - Phenomenology · Physics 2009-09-29 Mark I. Gorenstein

We study the collision of a highly energetic light closed string off a stack of Dp-branes at (sub)string-scale impact parameters and in a regime justifying a perturbative treatment. Unlike at larger impact parameters - where elastic…

High Energy Physics - Theory · Physics 2016-03-23 Giuseppe D'Appollonio , Paolo Di Vecchia , Rodolfo Russo , Gabriele Veneziano

Random Constraint Satisfaction Problems exhibit several phase transitions when their density of constraints is varied. One of these threshold phenomena, known as the clustering or dynamic transition, corresponds to a transition for an…

Disordered Systems and Neural Networks · Physics 2020-11-19 Louise Budzynski , Guilhem Semerjian
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