CERN Accelerating science

ALICE Preprints

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2018-04-19
10:32
$\phi$ meson production at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV / ALICE Collaboration, CERN
$\phi$ meson measurements provide insight into strangeness production, which is one of the key observables for the hot medium formed in high-energy heavy-ion collisions. ALICE measured $\phi$ production through its decay in muon pairs in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV in the intermediate transverse momentum range $2 < p_{\rm T} < 5$ GeV/$c$ and in the rapidity interval 2.5$<$$y$$<4$. [...]
CERN-EP-2018-082; arXiv:1804.08906.- Geneva : CERN, 2018 - 20. Draft (restricted): PDF;

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2018-04-05
15:18
Measurement of D$^0$, D$^+$, D$^{*+}$ and D$_{\rm s}^+$ production in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV / ALICE Collaboration, CERN
We report measurements of the production of prompt D$^0$, D$^+$, D$^{*+}$ and D$_{\rm s}^+$ mesons in Pb-Pb collisions at the centre-of-mass energy per nucleon-nucleon pair $\sqrt{s_{\rm NN}}=5.02$ TeV, in the centrality classes 0-10%, 30-50% and 60-80%. The D-meson production yields are measured at mid-rapidity ($|y|<0.5$) as a function of transverse momentum ($p_{\rm T}$). [...]
CERN-EP-2018-066; arXiv:1804.09083.- Geneva : CERN, 2018 - 23. Draft (restricted): PDF;

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2018-03-27
11:59
Energy dependence and fluctuations of anisotropic flow in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 and 2.76 TeV / Acharya, Shreyasi (Calcutta, VECC) ; Torales - Acosta, Fernando (UC, Berkeley) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adolfsson, Jonatan (Lund U.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Indian Inst. Tech., Mumbai) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahn, Sang Un (KISTI, Daejeon) et al.
Measurements of anisotropic flow coefficients with two- and multi-particle cumulants for inclusive charged particles in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 and 2.76 TeV are reported in the pseudorapidity range $|\eta|<0.8$ and transverse momentum $0.2 < p_{\rm T} < 50$ GeV/$c$. [...]
CERN-EP-2018-057 ; arXiv:1804.02944 ; CERN-EP-2018-057.
- 2018. - 37 p.
Draft (restricted) - Fulltext

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2018-03-12
18:26
Direct photon production at low transverse momentum in proton-proton collisions at $\sqrt{s}$ = 2.76 and 8 TeV / ALICE Collaboration
Measurements of inclusive and direct photon production at mid-rapidity in pp collisions at $\sqrt{s}$ = 2.76 and 8 TeV are presented by the ALICE experiment at the LHC. [...]
arXiv:1803.09857 ; CERN-EP-2018-045.
- 2018. - 27 p.
Draft (restricted) - Fulltext

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2018-03-08
14:50
Neutral pion and $\eta$ meson production at mid-rapidity in Pb–Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV / ALICE Collaboration
Neutral pion and η meson production in the transverse momentum range 1 < $p_{T}$ < 20 GeV/$c$ have been measured at mid-rapidity by the ALICE experiment at the Large Hadron Collider (LHC) in central and semi-central Pb-Pb collisions at $\sqrt{s_{NN}}=2.76$ TeV. [...]
arXiv:1803.05490 ; CERN-EP-2018-040.
- 2018. - 27 p.
Draft (restricted) - Fulltext

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2018-02-28
15:13
Azimuthally-differential pion femtoscopy relative to the third harmonic event plane in Pb-Pb collisions at $\mathbf{\sqrt{\textit{s}_{_{\rm NN}}}}$ = 2.76 TeV / ALICE Collaboration
Azimuthally-differential femtoscopic measurements, being sensitive to spatio-temporal characteristics of the source as well as to the collective velocity fields at freeze out, provide very important information on the nature and dynamics of the system evolution. While the HBT radii oscillations relative to the second harmonic event plane measured recently reflect mostly the spatial geometry of the source, model studies have shown that the HBT radii oscillations relative to the third harmonic event plane are predominantly defined by the velocity fields. [...]
CERN-EP-2018-035; arXiv:1803.10594.- Geneva : CERN, 2018 - 17 p. Draft (restricted): PDF; Fulltext: PDF;

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2018-02-16
11:57
Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC / ALICE Collaboration
We report the measured transverse momentum ($p_{\rm T}$) spectra of primary charged particles from pp, p-Pb and Pb-Pb collisions at a center-of-mass energy $\sqrt{s_{\rm NN}} = 5.02$ TeV in the kinematic range of $0.15<p_{\rm T}<50$ GeV/$c$ and $|\eta|< 0.8$. A significant improvement of systematic uncertainties motivated the reanalysis of data in pp and Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV, as well as in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV, which is also presented. [...]
CERN-EP-2018-025; arXiv:1802.09145.- Geneva : CERN, 2018 - 27 p. Draft (restricted): PDF; Fulltext: PDF;

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2018-02-15
16:32
Silicon-Based Detectors at the HL-LHC / Hartmann, Frank (KIT, Karlsruhe, EKP) /ALICE,ATLAS,CMS and LHCB Collaborations
This document discusses the silicon-based detectors planned for the High Luminosity LHC. The special aspects to cope with the new environment and its challenges, e.g. [...]
CMS-CR-2018-015.- Geneva : CERN, 2018 - 12 p. Fulltext: PDF;
In : 11th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors (HSTD11) in conjunction with 2nd Workshop on SOI Pixel Detectors (SOIPIX2017) at OIST, Okinawa, Japan, Okinawa, Japan, 10 - 15 Dec 2017

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2018-01-26
14:23
Prompt and non-prompt J/$\psi$ production and nuclear modification at mid-rapidity in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / Acharya, Shreyasi (Calcutta, VECC) ; Torales - Acosta, Fernando (UC, Berkeley) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adolfsson, Jonatan (Lund U.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (Indian Inst. Tech., Mumbai) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahn, Sang Un (KISTI, Daejeon) et al.
A measurement of beauty hadron production at mid-rapidity in proton-lead collisions at a nucleon-nucleon centre-of-mass energy $\sqrt{s_{\rm NN}} = 5.02$ TeV is presented. The semi-inclusive decay channel of beauty hadrons into J/$\psi$ is considered, where the J/$\psi$ mesons are reconstructed in the dielectron decay channel at mid-rapidity down to transverse momenta of 1.3 GeV/$c$. [...]
CERN-EP-2018-010; arXiv:1802.00765.- Geneva : CERN, 2018 - 24 p. Draft (restricted): PDF; Preprint: PDF;

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2018-01-16
07:49
Arhuaco: Deep Learning and Isolation Based Security for Distributed High-Throughput Computing / Gomez Ramirez, A. (Frankfurt U.) ; Lara, C. (Frankfurt U.) ; Betev, L. (CERN) ; Bilanovic, D. (Frankfurt U.) ; Kebschull, U. (Frankfurt U.)
Grid computing systems require innovative methods and tools to identify cybersecurity incidents and perform autonomous actions i.e. [...]
arXiv:1801.04179.
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Preprint

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