Koba-Nielsen-Olesen scaling in isospin-coupled reactions

Golokhvastov, A. I.

doi:10.1134/1.1414933

Cited by 20 publications

(24 citation statements)

References 61 publications

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“…The mean yield of pions (π + +π − +π 0 ) per wounded nucleon (Fig. 3 (right)) was calculated using phenomenological isospin factors [6]. NA61/SHINE measurements are in agreement with the world data.…”

Section: Na61 Results On Single-particle Spectrasupporting

confidence: 60%

Recent Results from the NA61/SHINE and Comparison to the NA49

Maćkowiak-Pawłowska¹

2013

Acta Phys. Pol. B Proc. Suppl.

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The NA61/SHINE experiment aims to discover the critical point of strongly interacting matter and study properties of the onset of deconfinement. It also performs precise hadron production measurements for the neutrino and cosmic rays experiments. These goals are being achieved by measurements of hadron production properties in nucleus-nucleus, protonproton and proton/pion-nucleus interactions as a function of collision energy and size of the colliding nuclei. This contribution presents preliminary results from the NA61 ion program on single-particle spectra and identified particle multiplicity fluctuations in p+p interactions at the CERN SPS. Comparisons with results from p+p and Pb+Pb collisions obtained by the NA49 experiment are shown.

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Section: Na61 Results On Single-particle Spectrasupporting

confidence: 60%

Recent Results from the NA61/SHINE and Comparison to the NA49

Maćkowiak-Pawłowska¹

2013

Acta Phys. Pol. B Proc. Suppl.

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“…In the CERN SPS beam momentum range of 10-450 GeV/c the mean multiplicity of negatively charged pions in inelastic p+p interactions increases from about 0.7 at 10 GeV/c to about 3.5 at 450 GeV/c [15]. Among three charged states of pions the most reliable measurements in the largest phase-space are usually possible for π − mesons.…”

Section: Introductionmentioning

confidence: 99%

“…In order to reduce their influence the mean multiplicity of pions is obtained from a sum of mean multiplicities of negatively and positively charged pions using the phenomenological formula [15]:…”

Section: Comparison With Central Pb+pb Collisionsmentioning

confidence: 99%

Measurement of negatively charged pion spectra in inelastic p+p interactions at $$p_{\mathbf {lab}}= $$ p lab = 20, 31, 40, 80 and 158 GeV/c

et al. 2014

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We present experimental results on inclusive spectra and mean multiplicities of negatively charged pions produced in inelastic p+p interactions at incident projectile momenta of 20,31,40, 80 and 158 GeV/c ( √ s = 6.3, 7.7, 8.8, 12.3 and 17.3 GeV, respectively). The measurements were performed using the large acceptance NA61/SHINE hadron spectrometer at the CERN super proton synchrotron. Two-dimensional spectra are determined in terms of rapidity and transverse momentum. Their properties such as the width of rapidity distributions and the inverse slope parameter of transverse mass spectra are extracted and their collision energy dependences are presented. The results on inelastic p+p interactions are compared with the corresponding data on central Pb+Pb collisions measured by the NA49 experiment at the CERN SPS. The results presented in this paper are part of the NA61/SHINE ion program devoted to the study of the properties of the onset of deconfinement and search for the critical point of strongly interacting matter. They are required for interpretation of results on nucleus-nucleus and proton-nucleus collisions.

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“…The superposition model curve is calculated using the pion production yield ratio R pA . The average negative pion multiplicity for p + C is calculated as π − pC = R pC π − pp , where π − pp is taken from [39]. The ratio R pA is parametrized experimentally as R pA ≈ 0.5 + 0.58ν [83].…”

Section: Comparison With the Experimental Datamentioning

confidence: 99%

Parametrization of the nucleus-nucleus γ -ray production cross sections below 100 GeV/nucleon: Subthreshold pions and hard photons

Kafexhiu

2016

Phys. Rev. C

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"Subthreshold pions" and so-called "hard photons" are two important channels for producing less than 1 GeV γ-rays and e ± pairs from nuclear collisions with energy per nucleon below the π-meson production threshold. I use publicly available experimental data to parametrize these two channels' γ-ray and e ± production cross sections and extend the pion contribution to these particles spectra at higher energies using their corresponding spectra from pp interactions. These parametrizations are valid for collision energy Tp ≤ 100 A GeV and agree reasonably well with the available experimental data. The new parametrizations allow, for the first time, accurate studies of astrophysical γ-rays below 1 GeV.

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Koba-Nielsen-Olesen scaling in isospin-coupled reactions

Cited by 20 publications

References 61 publications

Recent Results from the NA61/SHINE and Comparison to the NA49

Recent Results from the NA61/SHINE and Comparison to the NA49

Measurement of negatively charged pion spectra in inelastic p+p interactions at $$p_{\mathbf {lab}}= $$ p lab = 20, 31, 40, 80 and 158 GeV/c

Parametrization of the nucleus-nucleus γ -ray production cross sections below 100 GeV/nucleon: Subthreshold pions and hard photons

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