Measurements of $\pi ^\pm $, $K^\pm $, p and $\bar{p}$ spectra in $^{40}\hbox {Ar+}^{45}\hbox {Sc}$ collisions at 13A to 150A $\text{ Ge }\hspace{-1.00006pt}\text{ V }\!/\!c$ - INSPIRE

DataBETA

Measurements of $\pi ^\pm$ , $K^\pm$ , p and $\bar{p}$ spectra in $^{40}\hbox {Ar+}^{45}\hbox {Sc}$ collisions at 13A to 150A $\text{ Ge }\hspace{-1.00006pt}\text{ V }\!/\!c$

NA61/SHINE

Collaboration

•

H. Adhikary
(
- Jan Kochanowski U.
)

Aug 31, 2023

66 pages

Published in:

Eur.Phys.J.C 84 (2024) 4, 416

Published: Apr 22, 2024
and
Published: Apr, 2024

e-Print:

2308.16683 [nucl-ex]

DOI:

10.1140/epjc/s10052-024-12602-2 (publication)

Report number:

CERN-EP-2023-179,
FERMILAB-PUB-23-563-AD

Experiments:

CERN-NA-061

View in:

reference search16 citations

Citations per year

Abstract: (Springer)

The NA61/SHINE experiment at the CERN Super Proton Synchrotron studies the onset of deconfinement in strongly interacting matter through a beam energy scan of particle production in collisions of nuclei of varied sizes. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of

\pi ^\pm

,

K^\pm

, p and

\bar{p}

produced in

^{40}\hbox {Ar+}^{45}\hbox {Sc}

collisions at beam momenta of 13A, 19A, 30A, 40A, 75A and 150A

\text{ Ge }\hspace{-1.00006pt}\text{ V }\!/\!c

. The analysis uses the 10% most central collisions, where the observed forward energy defines centrality. The energy dependence of the

K^\pm

/

\pi ^\pm

ratios as well as of inverse slope parameters of the

K^\pm

transverse mass distributions are placed in between those found in inelastic

p+p

and central Pb + Pb collisions. The results obtained here establish a system-size dependence of hadron production properties that so far cannot be explained either within statistical or dynamical models.

beam: energy
beam: momentum
mass spectrum: transverse
matter: interaction
hadron: production
GeV
slope
proton synchrotron
multiplicity
transverse momentum

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