CERN Accelerating science

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1.
ALICE HLT TPC tracking of Pb-Pb Events on GPUs / Rohr, David (Frankfurt U.) ; Gorbunov, Sergey (Frankfurt U.) ; Szostak, Artur (Bergen U.) ; Kretz, Matthias (Frankfurt U.) ; Kollegger, Thorsten (Frankfurt U.) ; Breitner, Timo (Frankfurt U.) ; Alt, Torsten (Frankfurt U.) /ALICE HLT Collaboration
The online event reconstruction for the ALICE experiment at CERN requires processing capabilities to process central Pb-Pb collisions at a rate of more than 200 Hz, corresponding to an input data rate of about 25 GB/s. The reconstruction of particle trajectories in the Time Projection Chamber (TPC) is the most compute intensive step. [...]
arXiv:1712.09407.- 2012 - 8 p.
Fulltext: arXiv:1712.09407 - PDF; jpconf12_396_012044 - PDF;
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012, pp.012044
2.
The ALICE high-level trigger read-out upgrade for LHC Run 2 / Engel, H (Frankfurt U.) ; Alt, T (Frankfurt U.) ; Breitner, T (Frankfurt U.) ; Ramirez, A Gomez (Frankfurt U.) ; Kollegger, T (Darmstadt, GSI) ; Krzewicki, M (Frankfurt U.) ; Lehrbach, J (Frankfurt U.) ; Rohr, D (Frankfurt U.) ; Kebschull, U (Frankfurt U.) /ALICE
The ALICE experiment uses an optical read-out protocol called Detector Data Link (DDL) to connect the detectors with the computing clusters of Data Acquisition (DAQ) and High-Level Trigger (HLT). The interfaces of the clusters to these optical links are realized with FPGA-based PCI-Express boards. [...]
2016 - Published in : JINST 11 (2016) C01041 Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics, Lisbon, Portugal, 28 Sep - 2 Oct 2015, pp.C01041
3.
Enhanced production of multi-strange hadrons in high-multiplicity proton–proton collisions / ALICE Collaboration
At sufficiently high temperature and energy density, nuclear matter undergoes a transition to a phase in which quarks and gluons are not confined: the quark–gluon plasma (QGP). Such an exotic state of strongly interacting quantum chromodynamics matter is produced in the laboratory in heavy nuclei high-energy collisions, where an enhanced production of strange hadrons is observed. [...]
arXiv:1606.07424; CERN-EP-2016-153.- Geneva : CERN, 2017-04-24 - 17 p. - Published in : Nature Phys. 13 (2017) 535-539 Fulltext: arXiv:1606.07424 - PDF; nphys4111 - PDF; Fulltext from Publisher: PDF; External links: Interactions.org article; Symmetry Magazine article; Rivet analyses reference
4.
Higher harmonic flow coefficients of identified hadrons in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV / ALICE Collaboration
The elliptic, triangular, quadrangular and pentagonal anisotropic flow coefficients for $\pi^{\pm}$, $\mathrm{K}^{\pm}$ and p+$\overline{\mathrm{p}}$ in Pb-Pb collisions at $\sqrt{s_\mathrm{{NN}}} = 2.76$ TeV were measured with the ALICE detector at the Large Hadron Collider. The results were obtained with the Scalar Product method, correlating the identified hadrons with reference particles from a different pseudorapidity region. [...]
arXiv:1606.06057; CERN-EP-2016-159; CERN-EP-2016-159.- Geneva : CERN, 2016-09-28 - 40 p. - Published in : JHEP 09 (2016) 164 Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF;
5.
J/$\psi$ suppression at forward rapidity in Pb–Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / ALICE Collaboration
The inclusive J/$\psi$ production has been studied in Pb-Pb and pp interactions at the centre-of-mass energy per nucleon-nucleon collision $\sqrt{s_{\rm NN}} = 5.02$ TeV, using the ALICE detector at the CERN LHC. The J/$\psi$ meson is detected, in the centre-of-mass rapidity interval $2.5<y<4$ and in the transverse momentum range $p_{\rm T}<12$ GeV/$c$, via its decay to a muon pair. [...]
arXiv:1606.08197; CERN-EP-2016-162.- Geneva : CERN, 2017-03-10 - 13 p. - Published in : Phys. Lett. B 766 (2017) 212-224 Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: PDF; External link: Fulltext
6.
Elliptic flow of electrons from heavy-flavour hadron decays at mid-rapidity in Pb–Pb collisions at $\sqrt{s_{\rm NN}}= 2.76$ TeV / ALICE Collaboration
The elliptic flow of electrons from heavy-flavour hadron decays at mid-rapidity ($|y| < 0.7$) is measured in Pb–Pb collisions at $\sqrt{s_{\rm NN}}= 2.76$ TeV with ALICE at the LHC. The particle azimuthal distribution with respect to the reaction plane can be parametrized with a Fourier expansion, where the second coefficient ($v_2$) represents the elliptic flow. [...]
arXiv:1606.00321; CERN-EP-2016-136; CERN-EP-2016-136.- Geneva : CERN, 2016-09-06 - 35 p. - Published in : JHEP 09 (2016) 028 Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: PDF; Springer Open Access article: PDF;
7.
Measurement of azimuthal correlations of D mesons and charged particles in pp collisions at $\sqrt{s}=7$ TeV and p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / ALICE Collaboration
The azimuthal correlations of D mesons and charged particles were measured with the ALICE detector in pp collisions at $\sqrt{s}=7$ TeV and p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV at the Large Hadron Collider. D$^0$, D$^+$, and D$^{*+}$ mesons with transverse momentum $3 < p_{\rm T} < 16$ GeV/$c$ and rapidity in the nucleon-nucleon centre-of-mass system $|y_{\rm cms}| < 0.5$ (pp collisions) and $-0.96 < y_{\rm cms} < 0.04$ (p-Pb collisions) were correlated to charged particles with $p_{\rm T} > 0.3$ GeV/$c$. [...]
arXiv:1605.06963; CERN-EP-2016-129.- Geneva : CERN, 2017-04-17 - 29 p. - Published in : Eur. Phys. J. C 77 (2017) 245 Draft (restricted): PDF; Fulltext: PDF; Fulltext from Publisher: PDF; Springer Open Access article: PDF; External link: Preprint
8.
D-meson production in $p$–Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV and in $pp$ collisions at $\sqrt{s}=7$ TeV / ALICE Collaboration
The production cross sections of the prompt charmed mesons D$^0$, D$^+$, D$^{*+}$ and D$_{\rm s}^+$ were measured at mid-rapidity in p-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. D mesons were reconstruct ed from their decays D$^0\rightarrow {\rm K}^-\pi^+$, D$^+\rightarrow {\rm K}^-\pi^+\pi^+$, D$^{*+}\rightarrow {\rm D}^0\pi^+$, D$_s^+\rightarrow\phi\pi^+\rightarrow {\rm K}^-{\rm K}^+\pi^+$, and their charge conjugates. [...]
arXiv:1605.07569; CERN-EP-2016-127; CERN-EP-2016-127.- Geneva : CERN, 2016-11-23 - 31 p. - Published in : Phys. Rev. C 94 (2016) 054908 APS Open Access article: PDF; Draft (restricted): PDF; Fulltext: PDF; External link: Preprint
9.
Pseudorapidity dependence of the anisotropic flow of charged particles in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV / ALICE Collaboration
We present measurements of the elliptic ($\mathrm{v}_2$), triangular ($\mathrm{v}_3$) and quadrangular ($\mathrm{v}_4$) anisotropic azimuthal flow over a wide range of pseudorapidities ($-3.5< \eta < 5$). The measurements are performed with Pb-Pb collisions at $\sqrt{s_{\text{NN}}} = 2.76$ TeV using the ALICE detector at the Large Hadron Collider (LHC). [...]
arXiv:1605.02035; CERN-EP-2016-115; CERN-EP-2016-115.- Geneva : CERN, 2016-11-10 - 13 p. - Published in : Phys. Lett. B 762 (2016) 376-388 Article from SCOAP3: PDF; Elsevier Open Access article: PDF; Fulltext: PDF; External link: Preprint
10.
Correlated event-by-event fluctuations of flow harmonics in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV / ALICE Collaboration
We report the measurements of correlations between event-by-event fluctuations of amplitudes of anisotropic flow harmonics in nucleus–nucleus collisions, obtained for the first time using a new analysis method based on multiparticle cumulants in mixed harmonics. This novel method is robust against systematic biases originating from non-flow effects and by construction any dependence on symmetry planes is eliminated. [...]
arXiv:1604.07663; CERN-EP-2016-102; CERN-EP-2016-102.- Geneva : CERN, 2016-10-28 - 20 p. - Published in : Phys. Rev. Lett. 117 (2016) 182301 APS Open Access article: PDF; Draft (restricted): PDF; Fulltext: PDF; External link: Preprint

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Veja também: nomes de autores similares
15 Breitner, T
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130 Breitner, Timo Gunther
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