z-Scaling: Search for Signatures of Phase Transition in Nuclear Matter

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00574842" target="_blank" >RIV/61389005:_____/23:00574842 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1134/S1063779623040329" target="_blank" >https://doi.org/10.1134/S1063779623040329</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1134/S1063779623040329" target="_blank" >10.1134/S1063779623040329</a>

Jazyk výsledku

angličtina

Název v původním jazyce

z-Scaling: Search for Signatures of Phase Transition in Nuclear Matter

Popis výsledku v původním jazyce

We present results of analysis of hadron production in p + p and Au + Au collisions obtained in the framework of z-scaling in searching for signatures of a phase transition in nuclear matter. The approach allows systematic analysis of experimental data on inclusive cross sections over a wide range of the collision energies, multiplicity densities, transverse momenta, and angles of various particles. The concept of the z -scaling is based on the principles of self-similarity, locality and fractality reflecting the general features of hadron interactions. The scaling function ?(z) depends on the self-similarity variable z and is expressed by the inclusive cross-section and the multiplicity density of produced particles. The variable z is a function of the momentum fractions and of the colliding objects carried by interacting hadron constituents and x(1) x (2 )depends on the fractions and of the scattered and recoil constituents carried by the inclusive particle and ya y b its recoil counterpart. There are three model parameters in the z-scaling approach. Structure of the colliding objects and fragmentation processes are characterized by the structural and fragmentation fractal dimensions d and e, respectively. The produced medium is described by a 'specific heat' c. The discontinuity of the model parameters is discussed from the point of view of searching for phase transitions in nuclear matter.

Název v anglickém jazyce

z-Scaling: Search for Signatures of Phase Transition in Nuclear Matter

Popis výsledku anglicky

We present results of analysis of hadron production in p + p and Au + Au collisions obtained in the framework of z-scaling in searching for signatures of a phase transition in nuclear matter. The approach allows systematic analysis of experimental data on inclusive cross sections over a wide range of the collision energies, multiplicity densities, transverse momenta, and angles of various particles. The concept of the z -scaling is based on the principles of self-similarity, locality and fractality reflecting the general features of hadron interactions. The scaling function ?(z) depends on the self-similarity variable z and is expressed by the inclusive cross-section and the multiplicity density of produced particles. The variable z is a function of the momentum fractions and of the colliding objects carried by interacting hadron constituents and x(1) x (2 )depends on the fractions and of the scattered and recoil constituents carried by the inclusive particle and ya y b its recoil counterpart. There are three model parameters in the z-scaling approach. Structure of the colliding objects and fragmentation processes are characterized by the structural and fragmentation fractal dimensions d and e, respectively. The produced medium is described by a 'specific heat' c. The discontinuity of the model parameters is discussed from the point of view of searching for phase transitions in nuclear matter.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/LTT18021" target="_blank" >LTT18021: Spolupráce ČR s SÚJV Dubna v teoretické a jaderné fyzice a při využití jaderných metod v dalších oborech</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physics of Particles and Nuclei

ISSN

1063-7796

e-ISSN

1531-8559

Svazek periodika

54

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

640-646

Kód UT WoS článku

001041018100014

EID výsledku v databázi Scopus

2-s2.0-85167463281