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The production of prompt D$_s^+$ mesons was measured for the first time in collisions of heavy nuclei with the ALICE detector at the LHC. The analysis was performed on a data sample of Pb-Pb collisions at a centre-of-mass energy per nucleon…

Nuclear Experiment · Physics 2016-04-12 ALICE Collaboration

FASER$\nu$ at the CERN Large Hadron Collider (LHC) is designed to directly detect collider neutrinos for the first time and study their cross sections at TeV energies, where no such measurements currently exist. In 2018, a pilot detector…

In this work, we investigate the feasibility of defining centrality in electron-ion collisions at the Electron-Ion Collider (EIC) by examining the correlation between the impact parameter and several observables, including total energy,…

High Energy Physics - Phenomenology · Physics 2025-03-10 Mariam Hegazy , Aliaa Rafaat , Niseem Magdy , Wenliang Li , Abhay Deshpande , A. M. H. Abdelhady , A. Y. Ellithi

The structure of the CMS inner tracking system has been studied using nuclear interactions of hadrons striking its material. Data from proton-proton collisions at a center-of-mass energy of 13 TeV recorded in 2015 at the LHC are used to…

Instrumentation and Detectors · Physics 2018-11-01 CMS Collaboration

The STAR experiment at RHIC has a unique capability of measuring identified hadrons over a wide range of pseudorapidity ($\eta$), transverse momentum ($p_{T}$), and azimuthal angle ($\phi$) acceptance. The data collected ($\sqrt{s_{NN}}$ =…

Nuclear Experiment · Physics 2014-05-22 Sabita Das

The development of the Forward Spectator Detector (FSD) for the CBM experiment represents a crucial step toward successful realization of the CBM physics program - understanding of highly compressed nuclear matter at the forthcoming FAIR…

High Energy Physics - Experiment · Physics 2026-01-23 Radim Dvorak

We study the influence of the centrality definition and detector efficiency on the net-proton kurtosis for minimum bias Au+Au collisions at a beam energy of $\sqrt{s_{\mathrm{NN}}}= 7.7$ GeV by using the UrQMD model. We find that different…

The centrality or the number of initial-state sources $V$ of the system produced in heavy ion collision is a concept that is not uniquely defined and subject to significant theoretical and experimental uncertainties. We argue that a more…

Nuclear Theory · Physics 2020-07-01 Jiangyong Jia , Chunjian Zhang , Jun Xu

A Monte Carlo model, initially developed for soft pp and AA collisions at high energy, is applied for proton-lead interaction at the LHC energy. Elementary collisions are implemented at the partonic level and do not involve the usual…

High Energy Physics - Phenomenology · Physics 2013-08-09 V. N. Kovalenko

Atomic sensors have shown great promise for density and pressure metrology in the high, ultra-high, and extremely-high vacuum regimes. Specifically, the density of background gas particles in vacuum can be determined by measuring the…

Atomic Physics · Physics 2024-04-04 Erik Frieling , Riley A. Stewart , James L. Booth , Kirk W. Madison

The production mechanism of light (anti)nuclei in heavy-ion collisions has been extensively studied experimentally and theoretically. Two competing (anti)nucleosynthesis models are typically used to describe light (anti)nuclei yields and…

Nuclear Experiment · Physics 2023-03-22 Mario Ciacco

The centrality determination and the estimated fluctuations of number of participant nucleons $N_{part}$ in Au-Au collisions at 1.23 $A$GeV beam kinetic energy suffers from severe model dependencies. Comparing the Glauber Monte Carlo (MC)…

High Energy Physics - Phenomenology · Physics 2023-09-14 Manjunath Omana Kuttan , Jan Steinheimer , Kai Zhou , Marcus Bleicher , Horst Stoecker

The Large Hadron Collider forward (LHCf) experiment has been designed to use the LHC to benchmark the hadronic interaction models used in cosmic-ray physics. The LHCf experiment measures neutral particles emitted in the very forward region…

To reconstruct the impact parameter distributions from the selected events sample or centrality, which is defined by two-observables, at intermediate energy heavy ion collisions, we extend the approach proposed by Das \textit{et al.} [Phys.…

Nuclear Theory · Physics 2023-09-06 Xiang Chen , Li Li , Ying Cui , Junping Yang , Zhuxia Li , Yingxun Zhang

Heavy-ion experiments provide a new opportunity to gain a deeper understanding of the structure of nuclei. To achieve this, it is crucial to identify observables under circumstances that are minimally affected by the process that leads to…

Nuclear Theory · Physics 2024-06-21 S. M. A. Tabatabaee , S. F. Taghavi

Several proposals exist for energy-frontier facilities after the HL-LHC. In this contribution I review the potential of these facilities to perform key measurements of top quark properties and interacions. Top quark precision physics at a…

High Energy Physics - Experiment · Physics 2017-01-24 Marcel Vos

We demonstrate that the nuclear collision geometry (i.e. impact parameter) can be determined with 1.5 fm accuracy in an event-by-event analysis by measuring the transverse energy flow in the pseudorapidity region $3 \le |\eta| \le 5$ with a…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Savina , S. Shmatov , P. Zarubin

We improve the centrality definition in impact parameter in PACIAE model responding the fact reported by the ALICE, ATLAS, and CMS collaborations that the maximum impact parameter in heavy ion collisions should be extended to 20 $fm$.…

The measurements of the centrality dependence of $dN/d\eta$ and transverse momentum spectra from mid- to forward rapidity in d+Au collisions at $\sqrt{s_{_{\rm NN}}} =$ 200 GeV are reported. They provide a sensitive tool for understanding…

Nuclear Experiment · Physics 2012-08-27 STAR Collaboration

Experimental data on multiplicities and kinematical characteristics of $\pi^-$, $\pi^+$ mesons and protons in the interactions of protons with carbon nucleus at momentum 4.2 GeV/c in a dependence of collision centrality are analyzed.…

High Energy Physics - Experiment · Physics 2007-05-23 A. Galoyan , E. N. Kladnitskaya , O. V. Rogachevskii , R. Togoo , V. V. Uzhinskii