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1.
R&D on high momentum particle identification with a pressurized Cherenkov radiator / Agócs, A G (Wigner RCP, Budapest) ; Barile, F (Bari U. ; INFN, Bari) ; Barnaföldi, G G (Wigner RCP, Budapest) ; Bellwied, R (Houston U.) ; Bencédi, G (Wigner RCP, Budapest) ; Bencze, G (Wigner RCP, Budapest) ; Berényi, D (Wigner RCP, Budapest) ; Boldizsár, L (Wigner RCP, Budapest) ; Chattopadhyay, S (Saha Inst.) ; Chinellato, D D (Houston U.) et al.
We report on the R&D; results for a Very High Momentum Particle Identification (VHMPID) detector, which was proposed to extend the charged hadron track-by-track identification in the momentum range from 5 to 25 GeV/ c in the ALICE experiment at CERN. It is a RICH detector with focusing geometry using pressurized perfluorobutane (C 4 F 8 O) as a Cherenkov radiator. [...]
2014 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 766 (2014) 92-95 Elsevier Open Access article: PDF;
In : 8th International Workshop on Ring Imaging Cherenkov Detectors, Hayama, Kanagawa, Japan, 2 - 6 Dec 2013, pp.92-95
2.
VHMPID RICH prototype using pressurized C$_{4}$F$_{8}$O radiator gas and VUV photon detector / Acconcia, T V (U. Campinas) ; Agócs, A G (Wigner RCP, Budapest) ; Barile, F (Bari U. ; INFN, Bari) ; Barnaföldi, G G (Wigner RCP, Budapest) ; Bellwied, R (Houston U.) ; Bencédi, G (Wigner RCP, Budapest) ; Bencze, G (Wigner RCP, Budapest) ; Berényi, D (Wigner RCP, Budapest) ; Boldizsár, L (Wigner RCP, Budapest) ; Chattopadhyay, S (Saha Inst.) et al.
A small-size prototype of a new Ring Imaging Cherenkov (RICH) detector using for the first time pressurized C4F8O radiator gas and a photon detector consisting of MWPC equipped with a CsI photocathode has been built and tested at the PS accelerator at CERN. It contained all the functional elements of the detector proposed as Very High Momentum Particle Identification (VHMPID) upgrade for the ALICE experiment at LHC to provide charged hadron track-by-track identification in the momentum range starting from 5 potentially up to 25 GeV/c. [...]
2014 - 11 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 767 (2014) 50-60 Elsevier Open Access article: PDF;
3.
R&D studies of a RICH detector using pressurized C$_{4}$F$_{8}$O radiator gas and a CsI-based gaseous photon detector / Agócs, A.G (Budapest, RMKI) ; Barile, F (Bari U ; INFN, Bari) ; Barnaföldi, G.G (Budapest, RMKI) ; Bellwied, R (Houston U.) ; Bencédi, G (Budapest, RMKI) ; Bencze, G (Budapest, RMKI) ; Berényi, D (Budapest, RMKI) ; Boldizsár, L (Budapest, RMKI) ; Chattopadhyay, S (Matrivani Inst., Calcutta) ; Chinellato, D.D (Houston U.) et al.
We report on studies of layout and performance of a new Ring Imaging Cherenkov detector using for the fi rst time pressurized C 4 F 8 O radiator gas and a photon detector consisting of a MWPC equipped with a CsI photocathode. In particular, we present here the results of beam tests of a MWPC having an adjustable anode – cathode gap, aiming at the optimization of single photoelectron detection and Cherenkov angle resolution. [...]
2013 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 732 (2013) 361-365
In : 13th Vienna Conference on Instrumentation, Vienna, Austria, 11 - 15 Feb 2013, pp.361-365
4.
Measurement of charged jet suppression in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76TeV / ALICE Collaboration
A measurement of the transverse momentum spectra of jets in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76TeV is reported. Jets are reconstructed from charged particles using the anti-$k_T$ jet algorithm with jet resolution parameters R of 0.2 and 0.3 in pseudo-rapidity |$\eta$|<0.5. [...]
arXiv:1311.0633; CERN-PH-EP-2013-205; CERN-PH-EP-2013-205.- Geneva : CERN, 2014 - 39 p. - Published in : JHEP 30 (2014) 013 Article from SCOAP3: PDF; Fulltext: CERN-PH-EP-2013-205 - PDF; arXiv:1311.0633 - PDF; Springer Open Access article: PDF;
5.
Centrality, rapidity and transverse momentum dependence of the J/$\psi$ suppression in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV / ALICE Collaboration
The inclusive J/$\psi$ nuclear modification factor ($R_{AA}$) in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76TeV has been measured by ALICE as a function of centrality in the $e^+e^-$ decay channel at mid-rapidity |y| < 0.8 and as a function of centrality, transverse momentum and rapidity in the $\mu^+\mu^-$ decay channel at forward-rapidity 2.5 < y < 4.The J/$\psi$ yields measured in Pb-Pb are suppressed compared to those in pp collisions scaled by the number of binary collisions.The $R_{AA}$ integrated over a centrality range corresponding to 90% of the inelastic Pb-Pb cross section is 0.72 +- 0.06 (stat.) +- 0.10 (syst.) at mid-rapidity and 0.57 +- 0.01 (stat.) +- 0.09 (syst.) at forward-rapidity. At low transverse momentum, significantly larger values of $R_{AA}$ are measured at forward-rapidity compared to measurements at lower energy.These features suggest that a contribution to the J/$\psi$ yield originates from charm quarks (re)combination in the deconfined partonic medium..
arXiv:1311.0214; CERN-PH-EP-2013-203; CERN-PH-EP-2013-203.- Geneva : CERN, 2014-06-27 - 14 p. - Published in : Phys. Lett. B 743 (2014) 314-327 Article from SCOAP3: PDF; Elsevier Open Access article: PDF; Fulltext: PDF;
6.
Two- and three-pion quantum statistics correlations in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV at the CERN Large Hadron Collider / ALICE Collaboration
Correlations induced by quantum statistics are sensitive to the spatio-temporal extent as well as dynamics of particle emitting sources in heavy-ion collisions. In addition, such correlations can be used to search for the presence of a coherent component of pion production. [...]
arXiv:1310.7808; CERN-PH-EP-2013-201; CERN-PH-EP-2013-201.- Geneva : CERN, 2014-02-26 - 19 p. - Published in : Phys. Rev. C 89 (2014) 024911 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
7.
A Very High Momentum Particle Identification Detector / ALICE Collaboration
The construction of a new detector is proposed to extend the capabilities of ALICE in the high transverse momentum (pT) region. This Very High Momentum Particle Identification Detector (VHMPID) performs charged hadron identification on a track-by-track basis in the 5 GeV/c < p < 25 GeV/c momentum range and provides ALICE with new opportunities to study parton-medium interactions at LHC energies. [...]
arXiv:1309.5880.- 2014 - 30 p. - Published in : Eur. Phys. J. Plus 129 (2014) 91 Fulltext: PDF; External link: Preprint
8.
J/$\psi$ production and nuclear effects in p-Pb collisions at $\sqrt{s_{NN}}$=5.02 TeV / ALICE Collaboration
Inclusive J/$\psi$ production has been studied with the ALICE detector in p-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV at the CERN LHC, in the rapidity domains 2.03 < y$_{cms}$ < 3.53 and −4.46 < y$_{cms}$ < −2.96, down to zero transverse momentum. The J/$\psi$ measurement is performed in the Muon Spectrometer through the $\mu^+\mu^−$ decay mode. [...]
arXiv:1308.6726; CERN-PH-EP-2013-163; ALICE-PUBLIC-2013-002; CERN-PH-EP-2013-163.- Geneva : CERN, 2014 - 26 p. - Published in : JHEP 02 (2014) 073 Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: CERN-PH-EP-2013-163 - PDF; arXiv:1308.6726 - PDF; Springer Open Access article: PDF;
9.
Multiplicity Dependence of Pion, Kaon, Proton and Lambda Production in p-Pb Collisions at $\sqrt{s_{NN}}$ = 5.02 TeV / ALICE Collaboration
In this Letter, comprehensive results on $\pi^{\pm}, K^{\pm}, K^0_S$, $p(\bar{p})$ and $\Lambda (\bar{\Lambda})$ production at mid-rapidity (0 < $y_{CMS}$ < 0.5) in p-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV, measured by the ALICE detector at the LHC, are reported. The transverse momentum distributions exhibit a hardening as a function of event multiplicity, which is stronger for heavier particles. [...]
arXiv:1307.6796; CERN-PH-EP-2013-135; CERN-PH-EP-2013-135.- Geneva : CERN, 2014-01-20 - 14 p. - Published in : Phys. Lett. B 728 (2014) 25-38 Article from SCOAP3: PDF; Elsevier Open Access article: PDF; Fulltext: PDF; External link: Rivet analyses reference
10.
Multi-strange baryon production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV / ALICE Collaboration
We correct an error affecting the plotting of Fig. 5 in Phys. [...]
arXiv:1307.5543; CERN-PH-EP-2013-134; CERN-PH-EP-2013-134.- Geneva : CERN, 2014-01-20 - 12 p.
Article from SCOAP3: PDF; Corrigendum: PDF; Elsevier Open Access article: PDF; Fulltext: arXiv:1307.5543 - PDF; S0370269313009544 - XML; External link: Rivet analyses reference

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