Spectra of strange hadrons and their role in neutrinos flux prediction

Ullah, S.; Ajaz, Muhammad; Ali, Y.

doi:10.1209/0295-5075/123/31001

Cited by 23 publications

(4 citation statements)

References 37 publications

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“…The new version of QGJETII-04 is tuned with experimental data from LHC experiments. QGSJETII-04 model reproduces the experimental data at highermomentum to a good extent, while the particle distributions are over-estimated at lower-momentum [23,24].…”

Section: Methods and Modelsmentioning

confidence: 75%

Model studies of V0 production ratios in $pp$ collisions at $\sqrt{\mathrm{s}}$ = 0.2, 0.9, and 7 TeV

Ajaz¹,

Ashraf²,

Waqas³

et al. 2021

Preprint

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A comparative study of V 0 ratios has been performed between HIJING, Sibyll and QGSJET model based event generators in this paper. The ratios under study are Λ/Λ, Λ/K 0 S and Ξ − /Λ as a function of rapidity y, rapidity loss (∆y) and pT from pp collisions at √ s = 0.2, 0.9, and 7 TeV and these simulations are then compared with the STAR and LHCb fiducial phase spaces in different pT regions. Although the models could produce some of the ratios in a limited pT and / or y region but none of them completely predicts the experimental results. The QGSJET has good predictions with the data in most of the cases but since the model does not include the Ξ particle definition, therefore it does not give any predictions for Ξ/Λ ratios. The extrapolation to highest possible energies can be studied by re-tune some of the basic parameters based on current and previous measurements. These kind of systematic comparison studies are also useful in order to apply certain constraints on the pQCD and non-pQCD based hadronic event generators to significantly improve the predictions of Standard Model physics at the RHIC and LHC experimental data for the understanding of underlying physics mechanisms in high energy collisions.

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Section: Methods and Modelsmentioning

confidence: 75%

Model studies of V0 production ratios in $pp$ collisions at $\sqrt{\mathrm{s}}$ = 0.2, 0.9, and 7 TeV

Ajaz¹,

Ashraf²,

Waqas³

et al. 2021

Preprint

Self Cite

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show abstract

“…It also deals with the multiple interactions and effects of saturation [42]. Moreover, the model exhibits a favorable consistency with the experimental data at elevated momenta, while at low momenta, the distributions are slightly overestimated [45]. Normally, the Monte Carlo models allow users to control the definition of unstable particles.…”

Section: Methodology and Modelsmentioning

confidence: 92%

Tuning Monte Carlo Models to Reproduce Cosmic Radiation Interacting with the Earth’s Atmosphere

et al. 2023

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In this work, we performed a comparative study between HIJING, Sibyll, and QGSJET model-based event generators. Such Monte Carlo (MC) models are used to simulate the interaction and propagation of high-energy cosmic radiation (e.g., coming from the sun) with the Earth’s atmosphere. The global event observables selected for the study were the transverse momentum (pT) spectra and rapidity density distributions of strange particles (KS0, Λ, and Ξ−). This study was performed in the STAR and CMS fiducial phase spaces by simulating the strange particles in pp collisions at s = 200 GeV, 900 GeV, and 7 TeV, and the simulations were then compared to the experimental measurements. It was observed that none of the discussed model-based event generators ultimately predicted the experimental results, except QGSJET, which generally agrees reasonably with the data. However, QGSJET does not produce Ξ particles; therefore, it does not provide any predictions for Ξ. The other two models reproduced the data only in a limited rapidity or transverse momentum region while mainly underpredicting the data in the rest of the areas. These cosmic radiation simulation models are capable of covering the mid-rapidity regions of density distributions. Utilizing model-based observations, some fundamental parameters can be re-tuned and extrapolations to the highest energies can be investigated. Furthermore, these observations can provide valuable insights that could potentially constrain and improve perturbative- and non-perturbative-based QCD event generators, thereby facilitating a better understanding of the underlying physics.

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“…The paper is continuation of the work published in Refs. [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47] using different hadron production models.…”

Section: Models and Methodsmentioning

confidence: 99%

Model Predictions of Charged-Particle Azimuthal Distributions and Forward-Backward Correlations in pp Interactions at s=900 GeV*

Khan

Ajaz

Ali

et al. 2019

Commun. Theor. Phys.

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We report inelastic interactions of protons at the center of mass energy s = 900 GeV, by using different event generators to study the forward-backward (FB) correlation in summed transverse momentum and multiplicity of produced charged particles. The transverse momentum, pT ≥ 100 MeV, and pseudorapidity, |η| < 2.5, have been employed for both the correlations. The simulation results are compared with the ATLAS experimental data, obtained with the same values of |η| and pT at s = 900 GeV. We also measure the jet and jet-like structure as a function of azimuthal distributions in the events relative to the highest transverse momentum particle. Three overlapping regions of pseudorapidity, |η| < 1.0, |η| < 2.0, and |η| < 2.5 are used with transverse momentum, pT > 500 MeV. For FB correlations, EPOS, and Sybill2.3c results are in a good agreement with the data as compared to the other models. Similarly, for the azimuthal distribution, EPOS-LHC, DPMJETIII, and Sibyll2.3c show good agreement with the data for full η region. In general, EPOS provides a better description of the data for both the quantities studied in this paper.

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Spectra of strange hadrons and their role in neutrinos flux prediction

Cited by 23 publications

References 37 publications

Model studies of V0 production ratios in $pp$ collisions at $\sqrt{\mathrm{s}}$ = 0.2, 0.9, and 7 TeV

Model studies of V0 production ratios in $pp$ collisions at $\sqrt{\mathrm{s}}$ = 0.2, 0.9, and 7 TeV

Tuning Monte Carlo Models to Reproduce Cosmic Radiation Interacting with the Earth’s Atmosphere

Model Predictions of Charged-Particle Azimuthal Distributions and Forward-Backward Correlations in pp Interactions at s=900 GeV*

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