Strangeness enhancement and entropy enhancement in nuclear collisions

1995 ◽  
Author(s):  
Marek Gaździcki ◽  
Keyword(s):  
Nuclear Collisions ◽  
Strangeness Enhancement

Strangeness enhancement and strangeness suppression in nuclear collisions at 200 GeV/N

1992 ◽  
Vol 55 (3) ◽  
pp. 491-495 ◽  
Author(s):  
Helena Biaŀkowska ◽  
Marek Gaździcki ◽  
Waldemar Retyk ◽  
Ewa Skrzypczak
Keyword(s):  
Nuclear Collisions ◽  
200 Gev ◽  
Strangeness Enhancement

STRANGENESS PRODUCTION IN Au+Au REACTIONS AT $\sqrt{^SNN} = 62.4\ {\rm GeV}$

2007 ◽  
Vol 16 (07n08) ◽  
pp. 2035-2040 ◽  
Author(s):  
◽  
IONUT-CRISTIAN ARSENE
Keyword(s):  
Reaction Mechanism ◽  
Chemical Potential ◽  
Strangeness Production ◽  
Fragmentation Region ◽  
Nuclear Collisions ◽  
Wide Range ◽  
Strange Particles ◽  
Strangeness Enhancement

The measurement of strangeness is a valuable tool for understanding the reaction mechanism of nuclear collisions since all the strange particles need to be created during the reaction. Also, strangeness enhancement is one of the predicted signals of the QGP. In the present work we will discuss the behaviour of the strangeness production (i.e. K/π ratio) with rapidity and baryo-chemical potential in Au + Au collisions at 62.4 A GeV. In this particular reaction, BRAHMS is able to identify particles over 3.5 rapidity units and thereby cover a wide range of [Formula: see text] ratios, including the fragmentation region. We will show spectra and ratios of identified particles as a function of pT and rapidity.

scholarly journals First measurement of quarkonium polarization in nuclear collisions at the LHC

2021 ◽  
pp. 136146
Author(s):  
S. Acharya ◽  
D. Adamová ◽  
A. Adler ◽  
J. Adolfsson ◽  
M.M. Aggarwal ◽  
...  
Keyword(s):  
Nuclear Collisions

scholarly journals Tachyons and Solitons in Spontaneous Symmetry Breaking in the Frame of Field Theory

Symmetry ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1358
Author(s):  
Yiannis Contoyiannis ◽  
Michael P. Hanias ◽  
Pericles Papadopoulos ◽  
Stavros G. Stavrinides ◽  
Myron Kampitakis ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Spontaneous Symmetry Breaking ◽  
Critical Point ◽  
Universality Class ◽  
Lattice Simulation ◽  
Ginzburg Landau ◽  
Spin Lattice ◽  
Nuclear Collisions ◽  
Ising Spin ◽  
Relativistic Nuclear Collisions

This paper presents our study of the presence of the unstable critical point in spontaneous symmetry breaking (SSB) in the framework of Ginzburg–Landau (G-L) free energy. Through a 3D Ising spin lattice simulation, we found a zone of hysteresis where the unstable critical point continued to exist, despite the system having entered the broken symmetry phase. Within the hysteresis zone, the presence of the kink–antikink SSB solitons expands and, therefore, these can be observed. In scalar field theories, such as Higgs fields, the mass of this soliton inside the hysteresis zone could behave as a tachyon mass, namely as an imaginary quantity. Due to the fact that groups Ζ(2) and SU(2) belong to the same universality class, one expects that, in future experiments of ultra-relativistic nuclear collisions, in addition to the expected bosons condensations, structures of tachyon fields could appear.

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