CERN Accelerating science

ALICE Preprints

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2015-06-17
17:52
Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at 2.76 TeV / Adam, Jaroslav (Prague, Tech. U.) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (INFN, Turin) ; Agrawal, Neelima (Indian Inst. Tech., Mumbai) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahn, Sang Un (KISTI, Daejeon) ; Aimo, Ilaria (Turin Polytechnic ; INFN, Turin) ; Aiola, Salvatore (Yale U.) et al. /ALICE
Transverse momentum (\pt) spectra of pions, kaons, and protons up to $\pt = \gevc{20}$ have been measured in \pbpb collisions at $\snnt{2.76}$ using the ALICE detector for six different centrality classes covering 0-80\%. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at $\pt \approx \gevc{3}$ in central \pbpb collisions that decreases towards more peripheral collisions. [...]
CERN-PH-EP-2015-152; arXiv:1506.07287.- Geneva : CERN, 2015 - 44 p. Draft (restricted): PDF; Fulltext: arXiv:1506.07287 - PDF; CERN-PH-EP-2015-152 - PDF; External link: Fulltext

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2015-06-16
22:36
Centrality dependence of high-pT D meson suppression in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV / Adam, Jaroslav (Prague, Tech. U.) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Aggarwal, Madan Mohan (Panjab U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (INFN, Turin) ; Agrawal, Neelima (Indian Inst. Tech., Mumbai) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahn, Sang Un (KISTI, Daejeon) ; Aimo, Ilaria (Turin Polytechnic ; INFN, Turin) ; Aiola, Salvatore (Yale U.) et al.
The nuclear modification factor, $\RAA$, of the prompt charmed mesons $\Dzero$, $\Dplus$ and $\Dstar$, and their antiparticles, was measured with the ALICE detector in $\PbPb$ collisions at a centre-of-mass energy $\sqrts = 2.76~\tev$ in two transverse momentum intervals, $5<\pt<8~\gev/c$ and $8<\pt<16~\gev/c$, and in six collision centrality classes. The $\RAA$ shows a maximum suppression of a factor of 5--6 in the 10$\%$ most central collisions. [...]
CERN-PH-EP-2015-151; arXiv:1506.06604.- Geneva : CERN, 2015 - 21 p. Draft (restricted): PDF; Fulltext: arXiv:1506.06604 - PDF; CERN-PH-EP-2015-151 - PDF; External link: Fulltext

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2015-06-15
10:38
Measurement of jet quenching with semi-inclusive hadron-jet distributions in central Pb-Pb collisions at ${\sqrt{\bf{s}_{\mathrm {\bf{NN}}}}}$ = 2.76 TeV / ALICE Collaboration
We report the measurement of a new observable of jet quenching in central Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV, based on the semi-inclusive rate of charged jets recoiling from a high transverse momentum (high-$p_{\rm T}$) charged hadron trigger. [...]
arXiv:1506.03984 ; CERN-PH-EP-2015-136.
- 2015. - 37 p.
Preprint - Full text

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2015-05-29
17:41
Measurement of jet quenching with semi-inclusive hadron-jet distributions in central Pb–Pb collisions at sqrt(sNN) = 2.76 TeV / ALICE, CERN /ALICE
The ALICE Collaboration reports the measurement of a new observable of jet quenching in central Pb–Pb collisions at sqrt(sNN) = 2.76 TeV, based on the semi-inclusive rate of charged jets recoiling from a high transverse momentum (high-pT ) charged hadron trigger. Jets are measured using collinear-safejet reconstruction with infrared cutoff for jet constituents of 0.15 GeV/c, for jet resolution parameters R = 0.2, 0.4 and 0.5. [...]
CERN-PH-EP-2015-136.- Geneva : CERN, 2015 Draft (restricted): PDF; Fulltext: PDF;

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2015-05-25
07:25
Recent ALICE results on hadronic resonance production / Badalà, Angela (INFN, Catania)
Hadronic resonances are a valuable tool to study the properties of the medium formed in heavy-ion collisions [...]
arXiv:1505.06166.
- 2015. - 7 p.
Preprint

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2015-05-19
08:13
ALICE light-flavor results at intermediate and high pT in p-Pb and Pb-Pb collisions / Richert, Tuva (Lund U.)
The ALICE experiment has unique capabilities for particle identification at mid rapidity over a wide range of transverse momenta, making it an ideal tool for comprehensive measurements of hadrons such as charged pions, kaons, and protons as well as lambdas, K0s, and phi. [...]
arXiv:1505.04717.
- 2015. - 7 p.
Preprint

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2015-05-13
08:14
Parton energy loss and particle production at high momenta from ALICE / Bertens, Redmer Alexander (Utrecht U.)
Partons, produced in the early stages of heavy-ion collisions, lose energy while propagating through the collision medium. [...]
arXiv:1505.02915.
- 2015. - 4 p.
Preprint

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2015-04-28
08:44
Inclusive, prompt and non-prompt J/$\psi$ production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV / ALICE Collaboration
The transverse momentum ($p_{\rm T}$) dependence of the nuclear modification factor $R_{\rm AA}$ and the centrality dependence of the average transverse momentum $\langle p_{\rm T}\rangle$ for inclusive J/$\psi$ have been measured with ALICE for Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV in the e$^+$e$^-$ decay channel at mid-rapidity ($|y|<0.8$). [...]
arXiv:1504.07151 ; CERN-PH-EP-2015-092.
- 2015. - 28 p.
Preprint - Full text

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2015-04-09
07:29
Overview of ALICE results on azimuthal correlations using neutral- and heavy-meson triggers / Pochybova, Sona (Wigner RCP, Budapest)
The ALICE detector is dedicated to studying the properties of hot and dense matter created in heavy-ion collisions. [...]
arXiv:1504.01918.
- 2015. - 9 p.
Preprint

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2015-04-01
07:54
Coherent $\rho^0$ photoproduction in ultra-peripheral Pb-Pb collisions at $\mathbf{\sqrt{\textit{s}_{\rm NN}}} = 2.76$ TeV / ALICE Collaboration
We report the first measurement at the LHC of coherent photoproduction of $\rho^0$ mesons in ultra-peripheral Pb-Pb collisions. [...]
arXiv:1503.09177 ; CERN-PH-EP-2015-082.
- 2015. - 23 p.
Preprint - Full text - Fulltext

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