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The measurement of three-dimensional femtoscopic correlations between identical charged kaons (K$^\pm$K$^\pm$) produced in p$-$Pb collisions at center-of-mass energy per nucleon pair $\sqrt{s{_{\rm NN}}} = 5.02$ TeV with ALICE at the LHC is…

核实验 · 物理学 2026-01-22 ALICE Collaboration

The HIJING (Heavy-ion Jet Interaction Generator) Monte Carlo model is updated with the latest parton distributions functions (PDF) and new set of the parameters in the two-component mini-jet model that controls total $p+p$ cross section and…

高能物理 - 唯象学 · 物理学 2011-02-18 Wei-Tian Deng , Xin-Nian Wang , Rong Xu

The centrality dependence of pseudorapidity density of charged particles and transverse energy is studied for a wide range of collision energies for heavy-ion collisions at midrapidity from 7.7 GeV to 5.02 TeV. A two-component model…

高能物理 - 唯象学 · 物理学 2016-10-20 Aditya Nath Mishra , Raghunath Sahoo , Pragati Sahoo , Pooja Pareek , Nirbhay K. Behera , Basanta K. Nandi

In late 2015, the ALICE collaboration recorded data from Pb--Pb collisions at the unprecedented energy of \sqrt{s_{\rm NN}}~5.02~TeV. The transverse-momentum ($p_{\rm T}$) spectra of pions, kaons and protons are presented. The evolution of…

核实验 · 物理学 2019-08-13 Nicolò Jacazio

This letter reports measurements which characterize the underlying event associated with hard scatterings at mid-pseudorapidity ($|\eta|<0.8$) in pp, p$-$Pb and Pb$-$Pb collisions at centre-of-mass energy per nucleon pair, $\sqrt{s_{\rm…

核实验 · 物理学 2023-10-02 ALICE Collaboration

The dependencies of charged particle pseudorapidity density and transverse energy pseudorapidity density at midrapidity on the collision energy and on the number of nucleon participants, or centrality, measured in nucleus-nucleus collisions…

Particle production at LHC energies involves the interplay of hard (perturbative) and soft (non-perturbative) QCD processes. Global observables, such as the charged-particle multiplicity, are related to the initial geometry and the energy…

高能物理 - 实验 · 物理学 2019-02-20 Beomkyu Kim

We investigate the particle production in proton-antiproton ($p\bar{p}$) collisions using the PACIAE 4.0 model. The pseudorapidity density distributions ($dN_{\text{ch}}/d\eta$) and transverse momentum ($p_T$) spectra of charged particles…

高能物理 - 唯象学 · 物理学 2026-03-13 Z. Xie , A. K. Lei , H. Zheng , W. C. Zhang , D. M. Zhou , Z. L. She , Y. L. Yan , B. H. Sa

With the HIJING/BBbar v2.0 heavy ion event generator, we explore the phenomenological consequences of several high parton density dynamical effects predicted in central Pb+Pb collisions at the Large Hadron Collider (LHC) energies. These…

高能物理 - 唯象学 · 物理学 2011-10-31 V. Topor Pop , M. Gyulassy , J. Barrette , C. Gale

The measurement of the production of single muons from heavy-flavour hadron decays at forward rapidity in Pb--Pb collisions at $\sqrt{s_{\rm NN}} = 5.02~{\rm TeV}$ collected in 2015 is presented as a function of transverse momentum ($p_{\rm…

高能物理 - 实验 · 物理学 2017-06-27 Zuman Zhang

Azimuthal correlation studies of heavy-flavour particles with charged particles in p--Pb collisions can give an insight into the cold nuclear matter effects \cite{Andronic:2015wma} on heavy-quark production and hadronization into…

高能物理 - 实验 · 物理学 2019-03-06 Marianna Mazzilli

In high-energy heavy-ion collisions, the correlations between the emitted particles can be used as a probe to gain insight into the charge creation mechanisms. In this Letter, we report the first results of such studies using the electric…

核实验 · 物理学 2014-09-09 ALICE Collaboration

Based on trends seen at lower energies we "predict" the multiplicities and pseudorapidity distributions of particle density and elliptic flow that will be seen in PbPb and pp collisions at the LHC. We argue that, if these predictions turn…

核实验 · 物理学 2008-11-26 Wit Busza

The high-multiplicity pp collisions at the Large Hadron Collider energies with various heavy-ion-like signatures have warranted a deeper understanding of the underlying physics and particle production mechanisms. It is a common practice to…

高能物理 - 唯象学 · 物理学 2020-10-08 Suman Deb , Sushanta Tripathy , Golam Sarwar , Raghunath Sahoo , Jan-e Alam

The multiplicity and average transverse momentum of the charged and identified particles produced in different kinds of colliding systems are an example of global observables used to characterize events over a wide range of energy. Studying…

核实验 · 物理学 2022-09-28 Eleazar Cuautle , Edgar Domínguez Rosas , Mario Rodríguez-Cahuantzi

We study the production of $D^0$ meson in $p$+$p$ and $p-$Pb collisions using the improved AMPT model considering both coalescence and independent fragmentation of charm quarks after the Cronin broadening are included. After a detailed…

核理论 · 物理学 2024-03-12 Chao Zhang , Liang Zheng , ShuSu Shi , Zi-Wei Lin

We report first study of transverse momentum ($p_\mathrm{T}$) spectra for $\pi^{\pm}$, $K^{\pm}$, $p$, and $\bar{p}$ in isobar, $^{96}_{44}$Ru+$^{96}_{44}$Ru and $^{96}_{40}$Zr+$^{96}_{40}$Zr, collisions at $\sqrt{s_{\mathrm{NN}}} = 200$…

高能物理 - 唯象学 · 物理学 2024-07-11 P. Sinha , V. Bairathi , K. Gopal , C. Jena , S. Kabana

Within the next-to-leading order (NLO) perturbative QCD (pQCD) parton model, suppression of away-side hadron spectra associated with a high $p_{T}$ photon due to parton energy loss is studied in high-energy heavy-ion collisions. Dictated by…

核理论 · 物理学 2009-09-02 Hanzhong Zhang , J. F. Owens , Enke Wang , Xin-Nian Wang

A three component model, consisting of the hydrodynamical blast-wave term and two power-law terms, is proposed for an improved fitting of the hadron spectra measured at midrapidity and for arbitrary transverse momenta ($p_\textrm{T}$) in pp…

高能物理 - 唯象学 · 物理学 2021-12-14 Smbat Grigoryan

We have attempted to develop here tentatively a model for $J/\Psi$ production in p+p, d+Au, Cu + Cu and Au + Au collisions at RHIC energies on the basic ansatz that the results of nucleus-nucleus collisions could be arrived at from the…

高能物理 - 唯象学 · 物理学 2009-11-18 P. Guptaroy , Tarun K. Garain , Goutam Sau , S. K. Biswas , S. Bhattacharyya