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ALICE Preprints

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2017-07-27
09:06
Charged-particle multiplicity distributions over a wide pseudorapidity range in proton-proton collisions at $\sqrt{s}$ = 0.9, 7 and 8 TeV / ALICE, CERN /ALICE
We present the charged-particle multiplicity distributions over a wide pseudorapidity range (−3.4 < $\eta$ < 5.0) for pp collisions at $\sqrt{s}$ = 0.9, 7, and 8 TeV at the LHC. Results are based on information from the Silicon Pixel Detector and the Forward Multiplicity Detector of ALICE, extending the pseudorapidity coverage of the earlier publications and the high- multiplicity reach. [...]
CERN-EP-2017-192; arXiv:1708.01435.- Geneva : CERN, 2017 - 28 p. Draft (restricted): PDF; Fulltext: PDF; Preprint: PDF;

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2017-07-13
07:19
Material Budget Calculation of the new Inner Tracking System, ALICE / Poonsawat, W. (Suranaree U. of Tech.) ; Kobdaj, C. (Suranaree U. of Tech.) ; Sitta, M. (Piemonte Orientale U., Alessandria ; INFN, Turin) ; Yan, Y. (Suranaree U. of Tech.)
The ALICE Collaboration aims at studying the physics of strongly interacting matter by building up a dedicated heavy-ion detector. [...]
arXiv:1706.02110.
- 8 p.
Preprint

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2017-07-12
17:31
Measurement of deuteron spectra and elliptic flow in Pb–Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV at the LHC / Acharya, Shreyasi (Calcutta, VECC) ; 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) ; Ahmad, Nazeer (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al. /ALICE
The transverse momentum (p T ) spectra and elliptic flow coefficient (v 2 ) of deuterons and anti- deuterons at mid-rapidity (|y| < 0.5) are measured with the ALICE detector at the LHC in Pb–Pb √ collisions at s NN = 2.76 TeV. The measurement of the p T spectra of (anti-)deuterons is done up to 8 GeV/c in 0-10% centrality class and up to 6 GeV/c in 10–20% and 20–40% centrality classes. [...]
CERN-EP-2017-176; arXiv:1707.07304.- Geneva : CERN, 2017 - 27 p. Draft (restricted): PDF; Fulltext: PDF; Preprint: PDF;

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2017-07-03
08:53
$\Upsilon$ production in p-Pb and Pb-Pb collisions with ALICE at the LHC / Fronzé, Gabriele Gaetano (INFN, Turin ; Turin U.) /ALICE Collaboration
ALICE (A Large Ion Collider Experiment) is devoted to the study of heavy-ion collisions at LHC energies. In such collisions a deconfined state of nuclear matter, the Quark-Gluon Plasma (QGP), is formed. [...]
arXiv:1612.06691.- 2016-12-20 - 4 p. Preprint: PDF;

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2017-06-27
09:58
D$^0$, D$^+$, D$^{*+}$ and D$_s^+$ azimuthal anisotropy in mid-central Pb-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV / Acharya, Shreyasi (Calcutta, VECC) ; 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) ; Ahmad, Nazeer (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al. /ALICE
The azimuthal anisotropy coefficient $v_2$ of prompt D$^0$, D$^+$, D$^{*+}$ and D$_s^+$ mesons was measured in mid-central (30-50% centrality class) Pb-Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{\rm NN}}=5.02$ TeV, with the ALICE detector at the LHC. The D mesons were reconstructed via their hadronic decays at mid-rapidity, $|y|<0.8$, in the transverse momentum interval $1<p_{\rm T}<24$ GeV/$c$. [...]
CERN-EP-2017-153; arXiv:1707.01005.- Geneva : CERN, 2017 - 19 p. Draft (restricted): PDF; Fulltext: PDF; Preprint: PDF;

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2017-06-23
08:14
Searches for transverse momentum dependent flow vector fluctuations in Pb-Pb and p-Pb collisions at the LHC / Acharya, Shreyasi (Calcutta, VECC) ; 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) ; Ahmad, Nazeer (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al. /ALICE
The measurement of azimuthal correlations of charged particles is presented for Pb--Pb collisions at $\snn=$ 2.76 TeV and p--Pb collisions at $\snn=$ 5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. These correlations are measured for the second, third and fourth order flow vector in the pseudorapidity region $|\eta|<0.8$ as a function of centrality and transverse momentum $\pt$ using two observables, to search for evidence of $p_{\rm T}$-dependent flow vector fluctuations. [...]
CERN-EP-2017-149; arXiv:1707.05690.- Geneva : CERN, 2017 - 30 p. Draft (restricted): PDF; Fulltext: PDF; Preprint: PDF;

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2017-05-13
07:14
Benchmarking message queue libraries and network technologies to transport large data volume in the ALICE O system / Chibante Barroso, V (CERN) ; Fuchs, U (CERN) ; Wegrzynek, A (CERN)
ALICE (A Large Ion Collider Experiment) is the heavy-ion detector designed to study the physics of strongly interacting matter and the quark-gluon plasma at the CERN LHC (Large Hadron Collider). [...]
2016. - 5 p.

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2017-05-09
07:11
Dynamic configuration of the computing nodes of the ALICE $O^2$ system / Pugdeethosapol, Krittaphat (KMUTT, Thonburi) ; Chibante Barroso, Vasco (CERN) ; Akkarajitsakul, Khajonpong (KMUTT, Thonburi) ; Achclakul, Tiranee (KMUTT, Thonburi)
The ALICE (A Large Ion Collider Experiment) Collaboration is preparing major upgrades for the detectors in 2020 in order to take advantage of the increased LHC Pb-Pb collision rate of up to 50 kHz. [...]
2016. - 5 p.

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2017-05-07
10:13
Linear and non-linear flow mode in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV / Acharya, Shreyasi (Calcutta, VECC) ; 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) ; Ahmad, Nazeer (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al. /ALICE
The second and the third order anisotropic flow, V 2 and V 3 , are mostly determined by the correspond- ing initial spatial anisotropy coefficients, ε 2 and ε 3 , in the initial density distribution. In addition to their dependence on the same order initial anisotropy coefficient, higher order anisotropic flow, V n (n > 3), can also have a significant contribution from lower order initial anisotropy coefficients, which leads to mode-coupling effects. [...]
CERN-EP-2017-103; arXiv:1705.04377.- Geneva : CERN, 2017 - 21 p. Draft (restricted): PDF; Fulltext: CERN-EP-2017-103 - PDF; arXiv:1705.04377 - PDF;

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2017-04-18
07:17
Neutral meson production and correlation with charged hadrons in pp and Pb-Pb collisions with the ALICE experiment at the LHC / Vauthier, Astrid (LPSC, Grenoble)
Among the probes used to investigate the properties of the Quark-Gluon Plasma, the measurement of the energy loss of high-energy partons can be used to put constraints on energy-loss models and to ultimately access medium characteristics, such as the energy density or the temperature. [...]
arXiv:1704.04678.
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