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ALICE Public Notes

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2023-09-22
10:40
The Hyperloop Train System / Grosse-Oetringhaus, Jan Fiete (CERN) ; Abramyan, Armenuhi (A.Alikhanyan National Science Laboratory (AM)) ; Cruceru, Raluca (Wigner Research Centre for Physics (Wigner RCP) (HU)) ; Grigoras, Costin (CERN) ; Quishpe Quishpe, Raquel (University of Houston (US)) /ALICE Collaboration
Hyperloop is the analysis train system for ALICE Run~3 and 4, replacing the LEGO Train System used in Run~1 and 2. It has been fully integrated with the {$\mathrm{O^2}$} analysis framework to enable analysis on the exceptionally large data samples recorded in Run~3 and 4. [...]
ALICE-PUBLIC-2023-005.- Geneva : CERN, 2023 Fulltext: PDF;

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2023-09-01
12:23
Physics performance of the ALICE Forward Calorimeter upgrade /ALICE collaboration
The ALICE Collaboration proposes to instrument the existing ALICE detector with a forward calorimeter system (FoCal), planned to take data during LHC Run 4 (2029$-$2032). The FoCal detector is a highly-granular Si+W electromagnetic calorimeter combined with a conventional sampling hadronic calorimeter, covering the pseudo-rapidity interval of $3.2<\eta<5.8$. [...]
ALICE-PUBLIC-2023-004.- Geneva : CERN, 2023 Fulltext: PDF;

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2023-08-31
17:15
Chasing the onset of strange-quark thermalization at the LHC /ALICE collaboration
This note presents the first measurement of event-by-event fluctuations of the net-$\Xi^\pm$ number and of its correlation with the net-kaon number. The study is based on data collected by the ALICE Collaboration in pp, p$-$Pb, and Pb$-$Pb collisions at a center-of-mass energy per nucleon--nucleon pair $\sqrt{s_{\mathrm{NN}}}=5.02\ \mathrm{TeV}$. [...]
ALICE-PUBLIC-2023-003.- Geneva : CERN, 2023 Fulltext: PDF;

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2023-08-21
11:49
Upgrade of the ALICE Inner Tracking System during LS3: study of physics performance /ALICE Collaboration
This document summarises the studies on several observables whose measurement will be made accessible or largely improved by the upgrade of the inner barrel of the ALICE Inner Tracking System (ITS) for the LHC Run~4 (2029--2032). This upgrade project foresees the construction of a new inner barrel, denominated ITS3, made of three new fully cylindrical ultra-thin layers of monolithic active pixel sensors. [...]
ALICE-PUBLIC-2023-002.- Geneva : CERN, 2023 - 50. Fulltext: PDF;

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2023-05-15
11:20
Physics of the ALICE Forward Calorimeter upgrade /ALICE collaboration
The ALICE Collaboration proposes to instrument the existing ALICE detector with a forward calorimeter system (FoCal), planned to take data during LHC Run 4 (2029$-$2032). The FoCal detector is a highly-granular Si+W electromagnetic calorimeter combined with a conventional sampling hadronic calorimeter, covering the pseudorapidity interval of $3.4<\eta<5.8$ [...]
ALICE-PUBLIC-2023-001.- Geneva : CERN, 2023 Fulltext: PDF;

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2022-12-23
12:27
Supplemental material: Azimuthal anisotropy of jet particles in p-Pb and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV /ALICE Collaboration
The azimuthal anisotropy of particles associated with jets (jet particles) at midrapidity is measured for the first time in p$-$Pb and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV down to transverse momentum ($p_{\rm T}$) of 0.5 GeV/$c$ and 2 GeV/$c$, respectively, with ALICE. The second-order Fourier coefficient of the jet-particle azimuthal distribution ($v_2$) in high-multiplicity p$-$Pb collisions is positive, with a significance reaching 6.8$\sigma$ at low $p_{\rm T}$. [...]
ALICE-PUBLIC-2022-020.- Geneva : CERN, 2022 - 7. Fulltext: PDF;

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2022-11-24
17:12
Enhanced deuteron coalescence probability in jets. Supplemental Material: a model based on PYTHIA 8 and simple nucleon coalescence} /ALICE collaboration
This Note contains a detailed description of a simple nucleon coalescence model, where the phase space distributions of nucleons are generated using PYTHIA 8 with the Monash 2013 tuning. The predictions of this model can be compared to measurements of the transverse-momentum ($p_{\rm T}$) spectra and coalescence parameters $B_2$ of (anti)deuterons in pp collisions at $\sqrt{s} = $13 TeV, in and out of jets [...]
ALICE-PUBLIC-2022-019.- Geneva : CERN, 2022 Fulltext: PDF;

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2022-04-01
16:12
Physics Preliminary Summary: W$^\pm$-boson production in p$-$Pb collisions at $\sqrt{s_{NN}} = 8.16$ TeV and Pb$-$Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV /ALICE collaboration
The production of the W$^\pm$ bosons measured in p$-$Pb collisions at a centre-of-mass energy per nucleon--nucleon collision $\sqrt{s_{\rm NN}} = 8.16$ TeV and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with ALICE at the LHC is presented. The W$^\pm$ bosons are measured via their muonic decay channel, with the muon reconstructed in the pseudorapidity region $-4 < \eta^\mu_{\rm lab} < -2.5$ with transverse momentum $p_{\rm T}^\mu > 10$ GeV/$c$. [...]
ALICE-PUBLIC-2022-018.- Geneva : CERN, 2022 - 30. Physics Preliminary Summary: PDF;

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2022-04-01
15:47
Physics Preliminary Summary: Measurement of the production of charm jets tagged with ${\rm D^{0}}$ mesons in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV /ALICE collaboration
The measurement of the production of charm jets, identified by the presence of a ${\rm D^0}$ meson in the jet constituents, is presented in proton–proton collisions at centre-of-mass energies of $\sqrt{s}$ = 5.02 and 13 TeV with the ALICE detector at the CERN LHC. The D0 mesons were reconstructed from their hadronic decay ${\rm D^0} \rightarrow {\rm K^-}\pi^+$ and the respective charge conjugate. [...]
ALICE-PUBLIC-2022-017.- Geneva : CERN, 2022 - 26. Physics Preliminary Summary: PDF;

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2022-04-01
11:10
Physics Preliminary Summary: Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV /ALICE collaboration
This Note presents new measurements of the fragmentation properties of jets in both proton–proton (pp) and heavy-ion collisions with the ALICE experiment at the Large Hadron Collider (LHC). We report distributions of the fraction $z_r$ of transverse momentum carried by subjets of radius $r$ within jets of radius $R$ [...]
ALICE-PUBLIC-2022-016.- Geneva : CERN, 2022 - 20. Physics Preliminary Summary: PDF;

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