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ALICE Public Notes

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2021-11-22
21:14
The Wigner ALICE Analysis Facility /ALICE collaboration
The ever growing increase of computing power necessary for the storage and data analysis of the HEP experiments at CERN requires performance optimization of the existing and planned IT resources. One of the main computing capacity consumers in the HEP software workflow is the data analysis [...]
ALICE-PUBLIC-2021-007.- Geneva : CERN, 2021 Fulltext: PDF;

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2021-10-05
13:46
Performance of the ALICE HMPID detector during the LHC run period 2010$-$2015 and perspectives /ALICE Collaboration
In this note the performance of the ALICE High Momentum Particle IDentification (HMPID) detector during the LHC run period 2010$-$2015 is presented. The HMPID extends the charged hadron identification capability of the ALICE apparatus at high momenta, identifying with three sigma separation power charged pions and kaons in the momentum range 1$-$3 GeV/$c$ and (anti-)protons in the range 1.5$-$5 GeV/$c$. [...]
ALICE-PUBLIC-2021-006.- Geneva : CERN, 2021 Fulltext: PDF;

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2021-07-23
14:21
ALICE 2016-2017-2018 luminosity determination for pp collisions at $\mathbf{\sqrt{{\textit s}}}$ = 13 TeV /ALICE Collaboration
Luminosity determination in ALICE is based on the measurement of visible cross sections in van der Meer (vdM) scans. In the Run 2 (2015--2018), the Large Hadron Collider provided proton-proton collisions at a centre-of-mass energy of $\hbox{$\sqrt{s} = 13$ TeV}$. [...]
ALICE-PUBLIC-2021-005.- Geneva : CERN, 2021 - 24. Fulltext: PDF;

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2021-05-05
17:57
ALICE physics projections for a short oxygen-beam run at the LHC /ALICE Collaboration
This document collects performance projections for a selection of measurements that can be carried out with a short O$-$O run during the LHC Run 3. The baseline centre-of-mass energy per nucleon$-$nucleon collision is $\sqrt{s_{\rm NN}}=6.37$ TeV and measurement uncertainties are given for the integrated luminosity $L_{\rm int}= 1$ nb$^{-1}$. [...]
ALICE-PUBLIC-2021-004.- Geneva : CERN, 2021 Fulltext: PDF;

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2021-04-30
18:24
Signal extraction in the analysis of $\omega$ and $\phi$ meson production at forward rapidity in pp collisions at the LHC /ALICE Collaboration
This note contains details on the technique used for the signal extraction in the low-mass dimuon analyses in the rapidity range $2.5<y<4$, with particular attention for the $\omega$ and $\phi$ mesons. The main sources contributing to low mass region (LMR) are the light meson decays into muon pairs, the so-called hadronic cocktail, and a contribution coming from semimuonic decays of charm and beauty hadrons (referred in the following as open charm/beauty processes). [...]
ALICE-PUBLIC-2021-003.- Geneva : CERN, 2021 - 15. Fulltext: PDF;

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2021-03-29
17:17
Physics Preliminary Summary: Measurement of the primary Lund plane density in pp collisions at $\sqrt{s} = \rm{13}$ TeV with ALICE /ALICE Collaboration
A measurement of the primary Lund plane density in pp collisions at ALICE is presented. The Lund plane is built for inclusive charged-particle jets in the transverse momentum range of $20 \leq p_{\rm{T,jet}}^{\rm ch} \leq 120$ GeV$/c$ using an integrated luminosity $L_{\rm{int}} \approx 22.55$ nb$^{-1}$ recorded in minimum bias data for pp collisions at $\sqrt{s} =$ 13 TeV [...]
ALICE-PUBLIC-2021-002.- Geneva : CERN, 2021 - 18. Fulltext: PDF;

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2021-01-12
18:14
ALICE luminosity determination for Pb$-$Pb collisions at $\mathbf{\sqrt{s_{\rm NN}}=5.02}$ TeV /ALICE Collaboration
Luminosity determination in ALICE is based on visible cross sections measured in van der Meer scans. In 2015 and 2018, the Large Hadron Collider provided \PbPb collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV. [...]
ALICE-PUBLIC-2021-001.- Geneva : CERN, 2021 - 19. Fulltext: PDF;

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2020-12-09
18:48
Supplemental figure: ''Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ and $2.76$ TeV'' /ALICE Collaboration
This public note presents a supplemental figure for the publication ''Production of muons from heavy-flavour hadron decays at high transverse momentum in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ and $2.76$ TeV''~\cite{Acharya:2020xzh}. In this publication, the nuclear modification factor $R_{\rm AA}$ of muons from heavy-flavour hadron decays in the forward rapidity interval ($2.5 < y < 4$) is measured as a function of transverse momentum $p_{\rm T}$ in central (0-10%), semi-central (20-40%) and peripheral (60-80%) centrality classes in the interval $3 < p_{\rm T}< 20$ GeV/$c$. [...]
ALICE-PUBLIC-2020-009.- Geneva : CERN, 2020 Fulltext: PDF;

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2020-10-13
11:53
Quarkonium projections in p-Pb collisions for Run 3 and Run 4 /ALICE Collaboration
This note contains the projections in proton-nucleus collisions for $\psi(2\mathrm{S})/\mathrm{J}/\psi$ and $\Upsilon(n\mathrm{S})/\Upsilon(1\mathrm{S})$ in Run 3 and Run 4. With respect to LHC Run 2, a reduction of a factor $\approx$5 of the statistical uncertainties is estimated, assuming the increase of luminosity from $\sim$21.6 $\mathrm{nb}^{-1}$ to $\sim$500 $\mathrm{nb}^{-1}$..
ALICE-PUBLIC-2020-008.- Geneva : CERN, 2020 Fulltext: PDF;

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2020-10-08
11:52
Reference pp cross sections for J/$\psi$ and $\psi$(2S) production studies in p--Pb collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV /ALICE Collaboration
The values of the J/$\psi$ and $\psi$(2S) production cross sections in pp collisions at a centre-of-mass energy of $\sqrt{s} = 8.16$ TeV are reported. These values are obtained from the existing measurements at $\sqrt{s} = 8$ TeV using an energy interpolation combined with an extrapolation in rapidity [...]
ALICE-PUBLIC-2020-007.- Geneva : CERN, 2020 Fulltext: PDF;

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