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ALICE Public Notes

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2018-11-26
11:26
ALICE 2017 luminosity determination for pp collisions at $\sqrt{s}$ = 5 TeV /ALICE Collaboration
Luminosity determination in ALICE is based on visible cross sections measured in van der Meer scans. In November 2017, the Large Hadron Collider provided proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 5 TeV. [...]
ALICE-PUBLIC-2018-014.- Geneva : CERN, 2018 - 17. Fulltext: PDF;

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2018-10-23
11:23
Expression of Interest for an ALICE ITS Upgrade in LS3 /ALICE Collaboration
Recent innovations in the field of silicon imaging technology for consumer applications open extraordinary opportunities for new detector concepts, and hence offer strongly improved physics scope. This document presents a proposal for the construction of a novel vertex detector consisting of curved wafer-scale ultra-thin silicon sensors arranged in perfectly cylindrical layers, featuring an unprecedented low material budget of 0.05 % $X_{0}$ per layer, with the innermost layer positioned at only 18 mm radial distance from the interaction point. [...]
ALICE-PUBLIC-2018-013.- Geneva : CERN, 2018 - 23. v1.1: 1.PDF;

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2018-10-09
09:50
Radiation Dose and Fluence in ALICE after LS2 /ALICE Collaboration
This note reports radiation calculations referring to the upgraded ALICE detector after the second Long Shutdown (LS2). The simulations are obtained using the FLUKA transport code and take into account the recently measured multiplicities of Pb-Pb, p-Pb and pp collisions. [...]
ALICE-PUBLIC-2018-012.- Geneva : CERN, 2018 - 26. Fulltext: PDF;

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2018-08-30
12:57
Centrality determination in heavy ion collisions /ALICE Collaboration
This document describes the methods used by ALICE for the centrality determination. Specifically it addresses the modifications made with respect to previous publications..
ALICE-PUBLIC-2018-011.- Geneva : CERN, 2018 Fulltext: PDF;

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2018-05-28
10:53
Supplemental figures: "Measurement of the inclusive J/$\psi$ polarization at forward rapidity in pp collisions at $\sqrt{s} = 8$ TeV" /ALICE Collaboration
This short note presents supplemental figures for the paper "Measurement of the inclusive J/$\psi$ polarization at forward rapidity in pp collisions at $\sqrt{s} = 8$ TeV". The 2-D acceptance and efficiency maps are shown in Fig.1, and the simultaneous fits of the angular distributions of J/$\psi$ reconstructed in the di-muon decay channel (number of J/$\psi$ obtained with the initial setting of the invariant mass fit and corrected for acceptance and efficiency effects) are reported in Fig.2 for the Collins-Soper frame and in Fig.3 for the helicity frame. [...]
ALICE-PUBLIC-2018-010.- Geneva : CERN, 2018 - 6. Fulltext: PDF;

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2018-05-10
15:40
Supplemental figures: “Dielectron and heavy-quark production in inelastic and high-multiplicity proton-proton collisions at $\sqrt{s} = 13$ TeV” /ALICE Collaboration
This note provides supplemental figures for the paper ``Dielectron and heavy-quark production in inelastic and high-multiplicity proton--proton collisions at $\sqrt{s} = 13$ TeV''..
ALICE-PUBLIC-2018-009.- Geneva : CERN, 2018 Fulltext: PDF;

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2018-05-10
15:34
Preliminary Physics Summary: Inclusive $\Upsilon$ production in p-Pb collisions at $\sqrt{s_{\rm NN}} = 8.16$ TeV /ALICE Collaboration
The inclusive $\Upsilon$ production in p-Pb interactions at the centre-of-mass energy per nucleon-nucleon collision $\sqrt{s_{\rm NN}} = 8.16$ TeV is studied with the ALICE detector at the CERN LHC. The measurement has been performed reconstructing $\Upsilon$(1S) and $\Upsilon$(2S) mesons via their dimuon decay channel, in the centre-of-mass rapidities $2.03 < y_{\rm cms} < 3.53$ and $-4.46 < y_{\rm cms} < -2.96$, down to zero transverse momentum. [...]
ALICE-PUBLIC-2018-008.- Geneva : CERN, 2018 - 11. Fulltext: PDF;

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2018-05-10
15:26
Preliminary Physics Summary: Transverse momentum and centrality dependence of inclusive J/$\psi$ production in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV /ALICE Collaboration
Inclusive J/$\psi$ production in minimum bias p-Pb collisions at a collision energy per nucleon–nucleon pair of $\sqrt{s_{\rm NN}} = 5.02$ TeV is studied with a recent dataset from 2016 recorded by ALICE at the CERN-LHC. The production of J/$\psi$ is investigated in the dielectron channel in the central barrel in the centre-of-mass rapidity interval of $-1.37 < y_{\rm cms} < 0.43$. [...]
ALICE-PUBLIC-2018-007.- Geneva : CERN, 2018 Fulltext: PDF;

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2018-05-10
15:18
Preliminary Physics Summary: Measurement of D$^0$, D$^+$, D$^{*+}$ and D$_{\rm s}^+$ production in pp collisions at $\sqrt{s}= 5.02$ TeV with ALICE /ALICE Collaboration
The preliminary measurement of the production of prompt D$^0$, D$^+$, D$^{*+}$ and D$_{\rm s}^+$ mesons in proton-proton collisions at $\sqrt{s}= 5.02$ TeV with the ALICE detector at the LHC is reported. D mesons were reconstructed at mid-rapidity via their hadronic decay channels ${\rm D}^0\rightarrow {\rm K}^-\pi^+$, ${\rm D}^+\rightarrow {\rm K}^-\pi^+\pi^+$, ${\rm D}^{*+}\rightarrow {\rm D}^0\pi^+$, ${\rm D}_s^+\rightarrow \phi\pi^+\rightarrow {\rm K}^+{\rm K}^-\pi^+$, and their charge conjugates. [...]
ALICE-PUBLIC-2018-006.- Geneva : CERN, 2018 - 17. Fulltext: PDF;

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2018-05-10
14:58
Preliminary Physics Summary: Measurements of low-$p_{\rm T}$ electrons from semileptonic heavy-flavour hadron decays at mid-rapidity in pp collisions at $\sqrt{s}= 7$ TeV /ALICE Collaboration
The transverse-momentum ($p_{\rm T}$) differential production cross section of electrons from semileptonic heavy-flavour hadron decays has been measured in the interval $0.5 < p_{\rm T} < 4.0$ GeV/$c$ at mid-rapidity ($|y| < 0.8$) in proton-proton collisions at $\sqrt{s} = 7$ TeV with ALICE at the LHC. Statistical and systematic uncertainties have been reduced by a factor of about three with respect to previously published results. [...]
ALICE-PUBLIC-2018-005.- Geneva : CERN, 2018 - 10. Fulltext: PDF;

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