CERN Accelerating science

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1.
ALICE HLT high speed tracking on GPU / for the ALICE Collaboration
The on-line event reconstruction in ALICE is performed by the High Level Trigger, which should process up to 2000 events per second in proton-proton collisions and up to 300 central events per second in heavy-ion collisions, corresponding to an inp ut data stream of 30 GB/s. In order to fulfill the time requirements, a fast on-line tracker has been developed. [...]
2011 - Published in : IEEE Trans. Nucl. Sci. 58 (2011) 1845-1851
In : 17th IEEE NPSS Real Time Conference, Lisbon, Portugal, 24 - 28 May 2010, pp.1845-1851
2.
Event reconstruction performance of the ALICE High Level Trigger for p + p collisions / for the ALICE collaboration
The ALICE High Level Trigger comprises a large computing cluster, dedicated interfaces and software applications. It allows on-line event reconstruction of the full data stream of the ALICE experiment at up to 25 GByte/s. [...]
2011 - Published in : IEEE Trans. Nucl. Sci. 58 (2011) 1706-1713

In : 17th IEEE NPSS Real Time Conference, Lisbon, Portugal, 24 - 28 May 2010, pp.1706-1713
3.
Particle-yield modification in jet-like azimuthal dihadron correlations in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV / ALICE Collaboration
The yield of charged particles associated with high-pT trigger particles (8 < pT < 15 GeV/c) is measured with the ALICE detector in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV relative to proton-proton collisions at the same energy. The conditional per-trigger yields are extracted from the narrow jet-like correlation peaks in azimuthal di-hadron correlations. [...]
arXiv:1110.0121; CERN-PH-EP-2011-161; CERN-PH-EP-2011-161.- Geneva : CERN, 2012 - 15 p. - Published in : Phys. Rev. Lett. 108 (2012) 092301 APS Open Access article: PDF; Draft (restricted): PDF; Fulltext: PDF; External link: Rivet analyses reference
4.
Harmonic decomposition of two-particle angular correlations in Pb-Pb collisions at $\mathbf{\sqrt{s_{\rm NN}} = 2.76}$ TeV / ALICE Collaboration
Angular correlations between unidentified charged trigger ($t$) and associated ($a$) particles are measured by the ALICE experiment in \PbPb\ collisions at $\sqrt{s_{nn}}$=2.76 TeV for transverse momenta $0.25 < p_{T}^{t,\, a} < 15$ GeV/$c$, where $p_{T}^t > p_{T}^a$. The shapes of the pair correlation distributions are studied in a variety of collision centrality classes between 0 and 50% of the total hadronic cross section for particles in the pseudorapidity interval $|\eta| < 1.0$. [...]
arXiv:1109.2501; CERN-PH-EP-2011-152; CERN-PH-EP-2011-152.- 2013-07-16 - 16 p. - Published in : Phys. Lett. B 708 (2012) 249-264 Elsevier Open Access article: PDF; Fulltext: PDF; External link: DURHAM
5.
Higher harmonic anisotropic flow measurements of charged particles in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV / ALICE Collaboration
We report on the first measurement of the triangular v3, quadrangular v4, and pentagonal v5 charged particle flow in Pb-Pb collisions at 2.76 TeV measured with the ALICE detector at the CERN Large Hadron Collider. We show that the triangular flow can be described in terms of the initial spatial anisotropy and its fluctuations, which provides strong constraints on its origin. [...]
arXiv:1105.3865; CERN-PH-EP-2011-073; CERN-PH-EP-2011-073.- 2011 - 10 p. - Published in : Phys. Rev. Lett. 107 (2011) 032301 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
6.
Rapidity and transverse momentum dependence of inclusive J/$\psi$ production in pp collisions at $\sqrt{s}$ = 7 TeV / ALICE Collaboration
The ALICE experiment at the LHC has studied inclusive J/psi production at central and forward rapidities in pp collisions at sqrt(s) = 7 TeV. In this Letter, we report on the first results obtained detecting the J/psi through its dilepton decay into e+e- and mu+mu- pairs in the rapidity range |y|<0.9 and 2.5<y<4, respectively, and with acceptance down to zero p_T. [...]
arXiv:1105.0380; CERN-PH-EP-2011-057; CERN-PH-EP-2011-057.- 2013-07-16 - 14 p. Elsevier Open Access article: PDF; Fulltext: PDF; External link: DURHAM
7.
Femtoscopy of $pp$ collisions at $\sqrt{s}$=0.9 and 7 TeV at the LHC with two-pion Bose-Einstein correlations / ALICE Collaboration
We report on the high statistics two-pion correlation functions from pp collisions at $\sqrt{s}$=0.9 TeV and $\sqrt{s}$=7 TeV, measured by the ALICE experiment at the Large Hadron Collider. The correlation functions as well as the extracted source radii scale with event multiplicity and pair momentum. [...]
arXiv:1101.3665; CERN-PH-EP-2010-083; CERN-PH-EP-2010-083.- 2011 - 21 p. - Published in : Phys. Rev. D 84 (2011) 112004 APS Open Access article: PDF; Author list: TEX; Fulltext: PDF; External link: Preprint
8.
Two-pion Bose-Einstein correlations in central PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV / ALICE Collaboration
The first measurement of two-pion Bose--Einstein correlations in central PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV at the Large Hadron Collider is presented. We observe a growing trend with energy now not only for the longitudinal and the outward but also for the sideward pion source radius. [...]
arXiv:1012.4035; CERN-PH-EP-ALICE-2010-006; CERN-PH-EP-2010-078; CERN-PH-EP-2010-078.- Geneva : CERN, 2013-07-16 - 10 p. - Published in : Phys. Lett. B 696 (2011) 328-337 Elsevier Open Access article: PDF; Fulltext: PDF; External link: DURHAM
9.
Production of pions, kaons and protons in pp collisions at $\sqrt{s}$ = 900 GeV with ALICE at the LHC / ALICE Collaboration
The production of $\pi^+, pi^-, K^+, K^-$, p, and $\bar{p}$ at mid-rapidity has been measured in proton-proton collisions at $\sqrt{s}$ = 900 GeV with the ALICE detector. Particle identification is performed using the specific energy loss in the inner tracking silicon detector and the time projection chamber. [...]
arXiv:1101.4110; CERN-PH-EP-2010-085; CERN-PH-EP-2010-085.- Geneva : CERN, 2011 - 30 p. - Published in : Eur. Phys. J. C 71 (2011) 1655 Author list: TEX; Fulltext: PDF; Springer Open Access article: PDF; External link: Rivet analyses reference
10.
Centrality dependence of the charged-particle multiplicity density at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV / ALICE Collaboration
The centrality dependence of the charged-particle multiplicity density at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV is presented. The charged-particle density normalized per participating nucleon pair increases by about a factor 2 from peripheral (70-80%) to central (0-5%) collisions. [...]
arXiv:1012.1657; CERN-PH-EP-2010-071; CERN-PH-EP-2010-071.- 2011 - 14 p. - Published in : Phys. Rev. Lett. 106 (2011) 032301 APS Open Access article: PDF; Fulltext: PDF; External link: Rivet analyses reference

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Veja também: nomes de autores similares
18 Aamodt, K.
2 Aamodt, Kenneth
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