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ALICE Public Notes

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2025-02-21
11:41
Supplemental material: Measurement of isolated prompt photon production in pp and p-Pb collisions at the LHC /ALICE collaboration
This note provides supplementary material for the paper ``Measurement of isolated prompt photon production in pp and p-Pb collisions''. In particular, figures related to the measurement in pp collisions at $\sqrt{s}= 5.02$ TeV are presented, which has been performed using a purity estimation with the template fitting technique. [...]
ALICE-PUBLIC-2025-002.- Geneva : CERN, 2025 - 12. Fulltext: PDF;

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2025-01-28
10:00
Assessing the mental health state of LHC scientists / Jonas, Florian (University of California Berkeley (US)) ; Quaglia, Luca (Universita e INFN Torino (IT)) ; Reetz, Carolina Anna (Heidelberg University (DE)) ; Bossi, Hannah (Massachusetts Inst. of Technology (US)) ; Rasanen, Sami Sakari (University of Jyvaskyla (FI)) ; Speziali, Sarah (Università Telematica degli Studi IUL (IT)) ; Coldham, Kathryn Wendy (Princeton University (US)) /ALICE collaboration
A series of mental health awareness trainings have been initiated by the Early Career Scientists Fora (ECSF) to support and inform the LHC community. Building on a series of workshops, held online and in person at CERN between 2021 and 2023, a survey was shared with all four major experiments to assess the mental health perceptions and needs of participants. [...]
ALICE-PUBLIC-2025-001; CMS NOTE-2025-001.- Geneva : CERN, 2025 - 18. Fulltext: PDF;

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2024-09-20
10:59
Supplemental material: Medium-induced modification of groomed and ungroomed jet mass and angularities in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV /ALICE collaboration
The ALICE Collaboration presents a new suite of jet substructure measurements in Pb-Pb and pp collisions at a center-of-mass energy per nucleon pair $\sqrt{s_{\rm NN}} = 5.02$ TeV. These measurements provide access to the internal structure of jets via the momentum and angle of their constituents, probing how the quark-gluon plasma modifies jets, an effect known as jet quenching. [...]
ALICE-PUBLIC-2024-004.- Geneva : CERN, 2024 Fulltext: PDF;

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2024-09-18
15:32
Supplemental figures: Measurement of the inclusive isolated-photon production cross section in pp and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV /ALICE collaboration
The following note presents supplemental figures and additional material for the paper: ``Measurement of the inclusive isolated-photon production cross section in pp and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV'' A description of the calorimeter cell clusterization algorithm and cell selection for the shower spread calculation is presented. Supplementary figures are provided: shower shape distributions, including the effect on the variation of the cross-talk emulation parameters in the simulation; the underlying event subtraction with different area definitions; and isolated photon efficiency. [...]
ALICE-PUBLIC-2024-003.- Geneva : CERN, 2024 Fulltext: PDF;

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2024-07-11
17:17
Assessing the speed of sound in Pb–Pb collisions with ALICE /ALICE collaboration
Ultrarelativistic heavy-ion collisions produce a state of hot and dense strongly interacting QCD matter called quark--gluon plasma (QGP). On an event-by-event basis, the volume of the QGP in ultra-central collisions is mostly constant, while its total entropy can vary significantly, leading to variations in the temperature of the system. [...]
ALICE-PUBLIC-2024-002.- Geneva : CERN, 2024 updated citations: PDF;

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2024-06-17
17:24
Physics Preliminary Summary: D$^0$ meson yields as a function of the underlying event activity in pp collisions at $\sqrt{s}$ = 13 TeV /ALICE Collaboration
This public note presents the first measurement by the ALICE experiment of D$^0$ production as a function of the transverse event activity classifier $R_{\rm T}$ in pp collisions at $\sqrt{s} = 13$ TeV at central rapidity ($|\eta|<0.8$). Events containing a leading particle with $p_{\rm T}^{\rm lead}>5$ GeV/$c$ that have above-average underlying event activity suggest a higher per-event D$^0$ yield in the toward region than events with below-average underlying event activity for $2 < p_{\rm T}^{\rm D^0} < 5$ GeV/$c$. [...]
ALICE-PUBLIC-2024-001.- Geneva : CERN, 2024 - 19. Fulltext: PDF;

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2023-10-11
09:47
Supplemental figures: ``Towards the understanding of the genuine three-body interaction for p–p–p and p–p–$\Lambda$'' /ALICE Collaboration
This note provides supplementary figures for the paper ``Towards the understanding of the genuine three-body interaction for p--p--p and p--p--$\Lambda$''. The mixed event distributions and the 2D momentum resolution matrices are shown for the studied triplets. [...]
ALICE-PUBLIC-2023-006.- Geneva : CERN, 2023 - 10. Fulltext: PDF;

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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 minor updates: 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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