CERN Accelerating science

ALICE Papers

新增:
2015-06-23
10:09
$\phi$-meson production at forward rapidity in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV and in pp collisions at $\sqrt{s}$ = 2.76 TeV / ALICE Collaboration, CERN /ALICE
The first measurement of $\phi$-meson production in p-Pb collisions at a nucleon-nucleon centre-of-mass energy $\sqrt{s_{\rm NN}}$ = 5.02 TeV has been performed with the ALICE apparatus at the LHC. $\phi$ mesons have been identified in the dimuon decay channel in the transverse momentum ($p_{\rm T}$) range $1 < p_{\rm T} < 7$ GeV/c, both in the p-going ($2.03 < y < 3.53$) and the Pb-going ($-4.46 < y < -2.96$) directions, where $y$ stands for the rapidity in the nucleon-nucleon centre-of-mass. [...]
CERN-PH-EP-2015-161.- Geneva : CERN, 2015 - 17. Draft (restricted): PDF; Fulltext: PDF;

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2015-06-19
16:30
Differential studies of inclusive J/$\psi$ and $\psi(2S)$ production at forward rapidity in Pb–Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV / ALICE Collaboration, CERN /ALICE
The production of J/$\psi$ and $\psi(2S)$ was measured with the ALICE detector in Pb–Pb collisions at the LHC. The measurement was performed at forward rapidity ($2.5 < y < 4$) down to zero transverse momentum ($p_{\rm T}$) in the dimuon decay channel. [...]
CERN-PH-EP-2015-157.- Geneva : CERN, 2015 - 34. Draft (restricted): PDF; Fulltext: PDF;

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2015-06-18
21:43
Forward-central two-particle correlations\\in p--Pb collisions at sqrt(sNN)= 5.02 TeV / ALICE, CERN /ALICE
Two-particle angular correlations between trigger particles in the forward pseudorapidity range ($2.5 < |\eta| < 4.0$) and associated particles in the central range~($|\eta| < 1.0$) are measured with the ALICE detector in \pPb\ collisions at a nucleon--nucleon centre-of-mass energy of \unit[5.02]{TeV}. The trigger particles are reconstructed using the muon spectrometer, and the associated particles by the central barrel tracking detectors. [...]
CERN-PH-EP-2015-155.- Geneva : CERN, 2015 Draft (restricted): PDF; Fulltext: PDF;

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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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2015-04-28
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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2015-04-23
14:02
One-dimensional pion, kaon, and proton femtoscopy in Pb–Pb collisions at sqrt(sNN)=2.76 TeV / ALICE, CERN /ALICE
The size of the particle production region at the last stage of interaction created in high-energy collisions can be deduced using the femtoscopic correlations of particle pairs at low relative momentum. Such correlations arise due to quantum statistics and Coulomb and strong final state interactions. [...]
CERN-PH-EP-2015-106.- Geneva : CERN, 2015 Draft (restricted): PDF; Fulltext: PDF;

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2015-04-23
09:46
Hypertriton and anti-hypertriton production in Pb-Pb collision at sqrt(sNN) = 2.76 TeV / ALICE, CERN /ALICE
The production of the hypertriton nuclei $^{3}_{\Lambda}\mathrm H$ and $^{3}_{\bar{\Lambda}} \overline{\mathrm H}$ has been measured in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV with the ALICE experiment, opening the hypernuclear field at LHC energies. The total yield, d$N$/d$y$ $\times B.R._{\left( ^{3}_{\Lambda}\mathrm H \rightarrow ^{3}\mathrm{He},\pi^{-} \right)}$ = $\left( 3.86 \pm 0.77 (stat.) \pm 0.68 (syst.)\right) \times$ 10$^{-5}$ in the 0-10\% most central collisions is consistent with the predictions from a thermal statistical model using the same temperature as for the light hadrons. [...]
CERN-PH-EP-2015-105.- Geneva : CERN, 2015 Draft (restricted): PDF; Fulltext: PDF;

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