scholarly journals Neutral mesons production measured with the ALICE experiment

2020 ◽  
Author(s):  
Adam Tomasz Matyja ◽  
Keyword(s):  
Alice Experiment ◽  
Neutral Mesons

scholarly journals Neutral Meson and Direct Photon Measurements with the ALICE Experiment

2019 ◽  
Vol 64 (7) ◽  
pp. 602
Author(s):  
O. Kovalenko
Keyword(s):  
Parton Distribution ◽  
Heavy Ion ◽  
Distribution Functions ◽  
Direct Photon ◽  
Neutral Meson ◽  
Parton Distribution Functions ◽  
Alice Experiment ◽  
Neutral Mesons ◽  
Wide Range ◽  
Aa Collisions

The ALICE experiment is designed to study the properties of the matter created in proton-proton and heavy-ion collisions at the LHC. Neutral mesons can be reconstructed in ALICE in a wide range of transverse momenta via two-photon decays. Neutral meson measurements in pp collisions give an opportunity to validate the NLO or NNLO pQCD calculations and to constrain the parton distribution functions and the parton fragmentation functions. Neutral meson spectra measured in pA and AA collisions allow us to test a modification of the parton distribution functions in nuclei and the parton energy loss in the hot matter created in AA collisions. The recent results from ALICE on direct photon measurements in the Pb–Pb, neutral pion and n meson productions in pp, p-Pb, and Pb–Pb collisions are presented.

Production of Light Neutral Mesons in Ultrarelativistic Cu + Au and U + U Collisions in the Region of Mean Velocities

2020 ◽  
Vol 84 (10) ◽  
pp. 1269-1274
Author(s):  
A. Berdnikov ◽  
Y. Berdnikov ◽  
S. Zharko ◽  
D. Kotov ◽  
P. Radzevich
Keyword(s):  
Neutral Mesons

Common Readout Unit (CRU) - A new readout architecture for the ALICE experiment

2016 ◽  
Vol 11 (03) ◽  
pp. C03021-C03021 ◽  
Author(s):  
J. Mitra ◽  
S.A. Khan ◽  
S. Mukherjee ◽  
R. Paul
Keyword(s):  
Alice Experiment ◽  
Readout Unit

scholarly journals Simulation study of χ c →J/Ψ+γ detection with J/Ψ→e + e − in pp collisions in the ALICE experiment at LHC

2009 ◽  
Vol 61 (4) ◽  
pp. 899-903 ◽  
Author(s):  
P. González ◽  
P. Ladrón de Guevara ◽  
E. López Torres ◽  
A. Marín ◽  
E. Serradilla
Keyword(s):  
Simulation Study ◽  
Pp Collisions ◽  
Alice Experiment

scholarly journals Particle production at RHIC and LHC energies

2015 ◽  
Vol 30 (22) ◽  
pp. 1550131 ◽  
Author(s):  
A. Tawfik ◽  
E. Gamal ◽  
A. G. Shalaby
Keyword(s):  
Particle Production ◽  
Hadron Collider ◽  
Center Of Mass ◽  
System Size ◽  
Alice Experiment ◽  
Center Of Mass Energy ◽  
Particle Ratios ◽  
Strangeness Enhancement ◽  
Homogeneous Particle ◽  
Energy Formula

The production of pion, kaon and proton was measured in Pb–Pb collisions at nucleus–nucleus center-of-mass energy [Formula: see text] by the ALICE experiment at Large Hadron Collider (LHC). The particle ratios of these species compared to the RHIC measurements are confronted to the hadron resonance gas (HRG) model and to simulations based on the event generators PYTHIA 6.4.21 and HIJING 1.36. It is found that the homogeneous particle–antiparticle ratios (same species) are fully reproducible by means of HRG and partly by PYTHIA 6.4.21 and HIJING 1.36. The mixed kaon–pion and proton–pion ratios measured at RHIC and LHC energies seem to be reproducible by the HRG model. On the other hand, the strange abundances are underestimated in both event generators. This might be originated to strangeness suppression in the event generators and/or possible strangeness enhancement in the experimental data. It is apparent that the values of kaon–pion ratios are not sensitive to the huge increase of [Formula: see text] from 200 (RHIC) to 2760 GeV (LHC). We conclude that the ratios of produced particle at LHC seem not depending on the system size.

CHARMONIUM PRODUCTION IN Pb–Pb COLLISIONS AT ALICE: FROM SUPPRESSION TO REGENERATION?

2013 ◽  
Vol 28 (21) ◽  
pp. 1330018 ◽  
Author(s):  
ENRICO SCOMPARIN
Keyword(s):  
Phase Transition ◽  
Cross Sections ◽  
Short Review ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Alice Experiment ◽  
Model Calculations ◽  
Ion Collisions ◽  
Quark Production ◽  
History Of

Heavy quarkonium states are considered as one of the key observables for the study of the phase transition from a system made of hadrons towards a Quark–Gluon Plasma (QGP). In the last 25 years, experiments at CERN and Brookhaven have studied collisions of heavy ions looking for a suppression of charmonia/bottomonia, considered as a signature of the phase transition. After an introduction to the main concepts behind these studies and a short review of the SPS and RHIC results, I will describe the results obtained in Pb – Pb collisions by the ALICE experiment at the LHC. The ALICE findings will be critically compared to those of lower energy experiments, to CMS results, and to model calculations. The large cross-sections for heavy-quark production at LHC energies are expected to induce a novel production mechanism for charmonia in heavy-ion collisions, related to a recombination of [Formula: see text] pairs along the history of the collision and/or at hadronization. The occurrence of such a process at the LHC will be discussed. Finally, prospects for future measurements will be shortly addressed.

Sign in / Sign up

Export Citation Format

Share Document