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1.
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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
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2.
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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;
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3.
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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
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4.
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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
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5.
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6.
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7.
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Centrality dependence of $\pi$, K, p production in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV
/ ALICE Collaboration
In this paper measurements are presented of $\pi^\pm, K^\pm$, p and $\bar p$ production at mid-rapidity (|y| < 0.5), in Pb–Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV as a function of centrality. The measurement covers the transverse momentum ($p_T$) range from 100, 200, 300 MeV/c up to 3, 3, 4.6 GeV/c, for $\pi$, K, and p respectively. [...]
arXiv:1303.0737; CERN-PH-EP-2013-019; CERN-PH-EP-2013-019.-
Geneva : CERN, 2013-10-15 - 23 p.
- Published in : Phys. Rev. C 88 (2013) 044910
APS Open Access article: PDF; Draft (restricted): PDF; Fulltext: arXiv:1303.0737 - PDF; CERN-PH-EP-2013-019 - PDF; External link: Preprint
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8.
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Charge correlations using the balance function in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV
/ ALICE Collaboration
In high–energy heavy–ion collisions, the correlations between the emitted particles can be used as a probe to gain insight into the charge creation mechanisms. In this article, we report the first results of such studies using the electric charge balance function in the relative pseudorapidity (∆η) and azimuthal angle (∆φ) in Pb–Pb collisions at √sNN = 2.76 TeV with the ALICE detector at the Large Hadron Collider. [...]
arXiv:1301.3756; CERN-PH-EP-2012-371; CERN-PH-EP-2012-371.-
Geneva : CERN, 2013-06-25 - 37 p.
- Published in : Phys. Lett. B 723 (2013) 267-279
Draft (restricted): PDF; Elsevier Open Access article: PDF; Fulltext: CERN-PH-EP-2012-371 - PDF; arXiv:1301.3756 - PDF; External link: Preprint
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9.
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Centrality determination of Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV with ALICE
/ ALICE Collaboration
This publication describes the methods used to measure the centrality of inelastic Pb–Pb collisions at a center-of-mass energy of 2.76 TeV per colliding nucleon pair with ALICE. The centrality is a key parameter in the study of the properties of QCD matter at extreme temperature and energy density, because it is directly related to the initial overlap region of the colliding nuclei. [...]
arXiv:1301.4361; CERN-PH-EP-2012-368; CERN-PH-EP-2012-368.-
Geneva : CERN, 2013-10-15 - 22 p.
- Published in : Phys. Rev. C 88 (2013) 044909
APS Open Access article: PDF; Draft (restricted): PDF; Fulltext: CERN-PH-EP-2012-368 - PDF; arXiv:1301.4361 - PDF; External link: Preprint
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10.
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Long-range angular correlations on the near and away side in p-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV
/ ALICE Collaboration
Angular correlations between charged trigger and associated particles are measured by the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV for transverse momentum ranges within 0.5 < pT,assoc < pT,trig < 4 GeV/c. The correlations are measured over two units of pseudorapidity and full azimuthal angle in different intervals of event multiplicity, and expressed as associated yield per trigger particle. [...]
arXiv:1212.2001; CERN-PH-EP-2012-359; CERN-PH-EP-2012-359.-
Geneva : CERN, 2013-02-12 - 22 p.
- Published in : Phys. Lett. B 719 (2013) 29-41
Draft (restricted): PDF; Elsevier Open Access article: PDF; Fulltext: arXiv:1212.2001 - PDF; CERN-PH-EP-2012-359 - PDF; External link: DURHAM
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