scholarly journals A fixed-target programme at the LHC: Physics case and projected performances for heavy-ion, hadron, spin and astroparticle studies

2021 ◽  
Author(s):  
C. Hadjidakis ◽  
D. Kikoła ◽  
J.P. Lansberg ◽  
L. Massacrier ◽  
M.G. Echevarria ◽  
...  
Keyword(s):  
Heavy Ion ◽  
Fixed Target ◽  
Lhc Physics

scholarly journals Heavy-ion collisions in a fixed target mode at the LHC beams

2017 ◽  
Vol 138 ◽  
pp. 03009
Author(s):  
Alexey Kurepin ◽  
Nataliya Topilskaya
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Fixed Target ◽  
Ion Collisions ◽  
Target Mode

scholarly journals Influence of Backside Energy Leakages from Hadronic Calorimeters on Fluctuation Measures in Relativistic Heavy-Ion Collisions

Universe ◽  
2019 ◽  
Vol 5 (5) ◽  
pp. 126
Author(s):  
Andrey Seryakov
Keyword(s):  
High Energy Physics ◽  
System Size ◽  
Heavy Ion ◽  
High Energy ◽  
Relativistic Heavy Ion Collisions ◽  
Research Subject ◽  
Fixed Target ◽  
Main Research ◽  
Ion Collisions ◽  
Energy Physics

The phase diagram of the strongly interacting matter is the main research subject for different current and future experiments in high-energy physics. System size and energy scan programs aim to find a possible critical point. One of such programs was accomplished by the fixed-target NA61/SHINE experiment in 2018. It includes six beam energies and six colliding systems: p + p, Be + Be, Ar + Sc, Xe + La, Pb + Pb and p + Pb. In this study, we discuss how the efficiency of centrality selection by forward spectators influences multiplicity and fluctuation measures and how this influence depends on the size of colliding systems. We use SHIELD and EPOS Monte-Carlo (MC) generators along with the wounded nucleon model, introduce a probability to lose a forward spectator and spectator energy loss. We show that for light colliding systems such as Be or Li even a small inefficiency in centrality selection has a dramatic impact on multiplicity scaled variance. Conversely, heavy systems such as Ar + Sc are much less prone to the effect.

scholarly journals Study of the GEM detector performance in BM@N experiment

2018 ◽  
Vol 177 ◽  
pp. 04004
Author(s):  
Sergei Bazylev ◽  
Mikhail Kapishin ◽  
Kacper Kapusniak ◽  
Vladimir Karjavine ◽  
Sergei Khabarov ◽  
...  
Keyword(s):  
Tracking System ◽  
Deuteron Beam ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Fixed Target ◽  
Detector Performance ◽  
Ion Collisions ◽  
Target Experiment ◽  
Gem Detector ◽  
Gem Detectors

BM@N is the fixed target experiment at the accelerator complex NICA-Nuclotron aimed to study nuclear matter in the relativistic heavy ion collisions. Triple-GEM detectors were identified as appropriate for the BM@N tracking system located inside the analyzing magnet. Seven GEM chambers are integrated into the BM@N experimental setup and data acquisition system. GEM construction, main characteristics and first obtained results of the GEM tracking system performance in the technical run with the deuteron beam are shortly reviewed.

scholarly journals Performance of the BM@N GEM/CSC tracking system at the Nuclotron beam

2019 ◽  
Vol 204 ◽  
pp. 07009 ◽  
Author(s):  
A. Galavanov ◽  
M. Kapishin ◽  
K. Kapusniak ◽  
V. Karjavine ◽  
S. Khabarov ◽  
...  
Keyword(s):  
Tracking System ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Fixed Target ◽  
Ion Collisions ◽  
Target Experiment ◽  
Cathode Strip ◽  
Nuclotron Accelerator ◽  
Gem Detectors ◽  
Fixed Target Experiment

BM@N (Baryonic Matter at the Nuclotron) is a fixed target experiment aimed to study nuclear matter in the relativistic heavy-ion collisions at the Nuclotron accelerator in JINR. The BM@N tracking system is based on Gas Electron Multipliers (GEM) detectors mounted inside the BM@N analyzing magnet. The Cathode Strip Chamber (CSC) is installed outside the magnet. The CSC is used for improvement of particles momentum identification. The structure of the GEM detectors and the CSC prototype and the results of study of their characteristics are presented. The GEM detectors and CSC are integrated into the BM@N experimental setup and data acquisition system. The results of first tests of the GEM tracking system and CSC in last runs are shortly reviewed.

scholarly journals Studying Strangeness Production with HADES

2018 ◽  
Vol 171 ◽  
pp. 01001
Author(s):  
Heidi Schuldes
Keyword(s):  
Mass Spectra ◽  
Threshold Energy ◽  
Heavy Ion ◽  
Spectral Shape ◽  
Transverse Mass ◽  
Fixed Target ◽  
Fixed Target Experiments ◽  
Ion Collisions ◽  
Global Properties ◽  
The World

The High-Acceptance DiElectron Spectrometer (HADES) operates in the 1 - 2A GeV energy regime in fixed target experiments to explore baryon-rich strongly interacting matter in heavy-ion collisions at moderate temperatures with rare and penetrating probes. We present results on the production of strange hadrons below their respective NN threshold energy in Au+Au collisions at 1.23A GeV ([see formula in PDF] = 2.4 GeV). Special emphasis is put on the enhanced feed-down contribution of ϕ mesons to the inclusive yield of K- and its implication on the measured spectral shape of K-. Furthermore, we investigate global properties of the system, confronting the measured hadron yields and transverse mass spectra with a Statistical Hadronization Model (SHM) and a blastwave parameterization, respectively. These supplement the world data of the chemical and kinetic freeze-out temperatures.

scholarly journals Heavy-Ion and Fixed-Target Physics in LHCb

2019 ◽  
Vol 64 (7) ◽  
pp. 619
Author(s):  
V. Pugatch
Keyword(s):  
Heavy Ion Collisions ◽  
Theoretical Models ◽  
Heavy Ion ◽  
Production Mechanism ◽  
Fixed Target ◽  
Lhcb Experiment ◽  
Ion Collisions ◽  
Target Mode ◽  
Rapidity Distributions ◽  
The Impact

Selected results of the LHCb experiment on heavy ion collisions studied in the collider and fixed-target modes are presented. The clear evidence of the impact of the production mechanism (prompt/delayed, p-p or p-Pb systems) on the pT and rapidity distributions for J/ф, D0 and ϒ(ns) species is demonstrated. The interpretation of the observations in frames of theoretical models is briefly discussed. Some original results, as well as prospects of fixed-target mode studies, are presented.

scholarly journals An experiment for electron-hadron scattering at the LHC

2022 ◽  
Vol 82 (1) ◽  
Author(s):  
K. D. J. André ◽  
L. Aperio Bella ◽  
N. Armesto ◽  
S. A. Bogacz ◽  
D. Britzger ◽  
...  
Keyword(s):  
Heavy Ion ◽  
High Energy ◽  
Quantum Field ◽  
Heavy Ion Physics ◽  
Scattering Experiment ◽  
Lhc Physics ◽  
Physics Experiment ◽  
Energy Frontier ◽  
Accelerator Design ◽  
Physics Programme

AbstractNovel considerations are presented on the physics, apparatus and accelerator designs for a future, luminous, energy frontier electron-hadron (eh) scattering experiment at the LHC in the thirties for which key physics topics and their relation to the hadron-hadron HL-LHC physics programme are discussed. Demands are derived set by these physics topics on the design of the LHeC detector, a corresponding update of which is described. Optimisations on the accelerator design, especially the interaction region (IR), are presented. Initial accelerator considerations indicate that a common IR is possible to be built which alternately could serve eh and hh collisions while other experiments would stay on hh in either condition. A forward-backward symmetrised option of the LHeC detector is sketched which would permit extending the LHeC physics programme to also include aspects of hadron-hadron physics. The vision of a joint eh and hh physics experiment is shown to open new prospects for solving fundamental problems of high energy heavy-ion physics including the partonic structure of nuclei and the emergence of hydrodynamics in quantum field theory while the genuine TeV scale DIS physics is of unprecedented rank.

scholarly journals The fixed target experiment for studies of baryonic matter at the Nuclotron (BM@N)

2018 ◽  
Vol 182 ◽  
pp. 02061 ◽  
Author(s):  
Mikhail Kapishin
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Heavy Ion ◽  
Ion Beams ◽  
Experimental Program ◽  
Baryonic Matter ◽  
Accelerator Complex ◽  
Fixed Target ◽  
Target Experiment ◽  
Fixed Target Experiment

BM@N (Baryonic Matter at Nuclotron) is the first experiment to be realized at the accelerator complex of NICA-Nuclotron. The aim of the BM@N experiment is to study interactions of relativistic heavy ion beams with fixed targets. The BM@N setup, results of Monte Carlo simulations, the BM@N experimental program and results of technical runs are presented.

scholarly journals Quarkonium Production and Proposal of the New Experiments on Fixed Target at the LHC

2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
A. B. Kurepin ◽  
N. S. Topilskaya
Keyword(s):  
Quark Gluon Plasma ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Ion Beams ◽  
Fixed Target ◽  
Ion Collisions ◽  
Quarkonium Production ◽  
200 Gev ◽  
Na50 Collaboration ◽  
Regeneration Processes

The brief review of the experimental data on quarkonium productions measured at the CERN SPS, at the Brookhaven Collider RHIC, and at the LHC is presented. The dissociation of quarkonium resonances produced in heavy ion collisions was suggested as a possible signal of the Quark-Gluon Plasma formation. At the CERN SPS, the anomalous suppression of theJ/ψproduction was observed in central Pb-Pb collisions by the NA50 collaboration. However, the effects ofJ/ψsuppression on cold nuclear matter, feed-down production from higher charmonium states, and regeneration processes should be taken into account. If proton and ion beams at the LHC will be used with fixed targets, the energy interval between the SPS energy and the nominal RHIC energy (200 GeV) could be investigated. The high statistics data on quarkonium productions at these energies will give the possibility of clarifying the mechanism of charmonium productions to investigate the importance of the recombination process, since the probability of recombination decreases with decreasing the energy of collisions.

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