z-Scaling: Search for Signatures of Phase Transition in Nuclear Matter
Result description
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.
Keywords
symmetryhigh energynucleistrange particlesscalingphase transition
The result's identifiers
Result code in IS VaVaI
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
z-Scaling: Search for Signatures of Phase Transition in Nuclear Matter
Original language description
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.
Czech name
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Czech description
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Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physics of Particles and Nuclei
ISSN
1063-7796
e-ISSN
1531-8559
Volume of the periodical
54
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
640-646
UT code for WoS article
001041018100014
EID of the result in the Scopus database
2-s2.0-85167463281
Basic information
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Particles and field physics
Year of implementation
2023