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CERN Accelerating science

ALICE Preprints

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2021-06-09
06:17
Client Request Analysis Tool for CERN ALICE Grid Services / Margineanu, Cristian (Bucharest, Polytechnic Inst.) ; Grigoras, Costin (Unlisted, CH) ; Carabas, Mihai (Bucharest, Polytechnic Inst.) ; Weisz, Sergiu (Bucharest, Polytechnic Inst.) ; Mihai, Darius (Bucharest, Polytechnic Inst.) ; Mihailescu, Maria-Elena (Bucharest, Polytechnic Inst.) ; Tapus, Nicolae (Bucharest, Polytechnic Inst.)
ALICE is an experiment hosted at the CERN facilities in Geneva. [...]
2020. - 6 p.

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2021-06-09
06:17
Software-Defined Storage Optimization of Distributed ALICE Resources / Lončar, Petra (Split Tech. U.) ; Gotovac, Sven (Split Tech. U.)
In today’s big data era, data and information are the main capital. [...]
17 S. - 6 p.

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2021-06-09
06:17
Anomaly Detection for CERN Beam Transfer Installations Using Machine Learning / Dewitte, Thiebout (Leuven U.) ; Meert, Wannes (Leuven U.) ; Van Trappen, Pieter (CERN) ; Van Wolputte, Elia (Leuven U.)
Reliability, availability and maintainability determine whether or not a large-scale accelerator system can be operated in a sustainable, cost-effective manner. [...]
2019. - 5 p.

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2021-06-09
06:17
AliECS: A New Experiment Control System for the Alice Experiment / Mrnjavac, Teo (CERN) ; Alexopoulos, Konstantinos (CERN) ; Chibante Barroso, Vasco (CERN) ; Raduta, George (CERN)
The ALICE Experiment at CERN LHC (Large Hadron Collider) is undertaking during Long Shutdown 2 in 2019-2020 a major upgrade, which includes a new computing system called O² (Online-Offline). [...]
2019. - 7 p.

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2021-06-09
04:00
Usage of GPUs in ALICE Online and Offline processing during LHC Run 3 / Rohr, David (CERN)
ALICE will significantly increase its Pb--Pb data taking rate from the 1 kHz of triggered readout in Run 2 to 50 kHz of continuous readout for LHC Run 3. [...]
arXiv:2106.03636.
- 11 p.
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2021-06-04
17:25
Direct observation of the dead-cone effect in QCD / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al. /ALICE
At particle collider experiments, elementary particle interactions with large momentum transfer produce quarks and gluons (known as partons) whose evolution is governed by the strong force, as described by the theory of quantum chromodynamics (QCD) [1]. The vacuum is not transparent to the partons and induces gluon radiation and quark pair production in a process that can be described as a parton shower [2]. [...]
arXiv:2106.05713; CERN-EP-2021-107.- Geneva : CERN, 2021 - 22 p. Draft (restricted): PDF; Fulltext: PDF;

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2021-05-26
04:01
QCD dynamics studied with jets in ALICE / Ehlers, Raymond (Oak Ridge)
Precise measurements and calculations of the internal structure of hadronic jets produced in high energy proton or lead collisions have become a prominent research area in recent years. [...]
arXiv:2105.10523.
- 4 p.
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2021-05-18
08:39
Recent ALICE results on charm production and hadronisation / Vermunt, Luuk (Utrecht U.)
Studies on the production of open charm hadrons are of paramount importance to investigate the charm-quark hadronisation mechanisms at the LHC, particularly through the evolution of the production ratio between different charm-hadron species. [...]
arXiv:2105.07154.
- 4 p.
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2021-05-11
10:41
Charged-particle multiplicity fluctuations in Pb–Pb collisions at $\sqrt{s_{\rm NN}$ = 2.76 TeV / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al.
Measurements of event-by-event fluctuations of charged-particle multiplicities in Pb–Pb collisions at $\sqrt{s_{\rm NN}$ = 2.76 TeV using the ALICE detector at the CERN Large Hadron Collider (LHC) are presented in the pseudorapidity range |$\eta$| < 0.8 and transverse momentum 0.2 < $p_{\rm T}$ < 2.0 GeV/$c$. [...]
arXiv:2105.05745 ; CERN-EP-2021-089.
- 2021. - 23 p.
Draft (restricted) - Fulltext

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2021-05-10
12:45
Charm-quark fragmentation fractions and production cross section at 4 midrapidity in pp collisions at the LHC / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al.
Recent $p_{\rm T}$-integrated cross section measurements of the ground-state charm mesons and baryons, $\mathrm{D^0}$, $\mathrm{D^+}$, $\mathrm{D_s^+}$, $\Lambda_\mathrm{c}^+$, and $\Xi_\mathrm{c}^0$, are used to evaluate the charm fragmentation fractions and production cross section per unit of rapidity at midrapidity ($|y|<0.5$), in pp collisions at $\sqrt{s} = 5.02$ TeV at the LHC. The latter is $\mathrm{d}\sigma^{\mathrm{c\overline{c}}}/\mathrm{d} y|_{|y| < 0.5}=1165\pm 44(\mathrm{stat})^{+134}_{-101}(\mathrm{syst}) \ \mu\mathrm{b}$. [...]
arXiv:2105.06335; CERN-EP-2021-088.- Geneva : CERN, 2021 - 19 p. Draft (restricted): PDF; Fulltext: PDF;

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