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ALICE Preprints

新增:
2022-11-24
04:02
Real and virtual direct photon measurements with ALICE / Scheid, Sebastian
In this contribution the latest measurements of real and virtual photons in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV from the ALICE Collaboration are presented. [...]
arXiv:2211.11934.
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2022-11-23
19:35
Multiplicity dependence of charged-particle production in pp, p-Pb, Xe-Xe and Pb-Pb collisions at the LHC / ALICE Collaboration, CERN
Multiplicity ($N_{\mathrm {ch}}$) distributions and transverse momentum ($p_{\mathrm T}$) spectra of inclusive primary charged particles in the kinematic range of $|\eta| < 0.8$ and 0.15 GeV/$c$ $< p_{\mathrm T} < 10$ GeV/$c$ are reported for pp, p-Pb, Xe-Xe and Pb-Pb collisions at centre-of-mass energies per nucleon pair ranging from $\sqrt{s_\mathrm{NN}} = 2.76$ TeV up to 13 TeV. A sequential two-dimensional unfolding procedure is used to extract the correlation between the transverse momentum of primary charged particles and the charged-particle multiplicity of the corresponding collision. [...]
CERN-EP-2022-266.- Geneva : CERN, 2022 Draft (restricted): PDF;

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2022-11-23
04:30
Exploring jet interactions in the quark-gluon plasma using jet substructure measurements in Pb-Pb collisions with ALICE / Ehlers, Raymond
Jets are generated in hard interactions in high-energy nuclear collisions. [...]
arXiv:2211.11800.
- 6 p.
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2022-11-23
04:27
Commissioning and first performances of the ALICE MID RPCs / Terlizzi, Livia
ALICE (A Large Ion Collider Experiment) at the CERN Large Hadron Collider (LHC) is designed to study p-p and Pb-Pb collisions at ultra-relativistic energies. [...]
arXiv:2211.11254.
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2022-11-18
22:59
Enhanced deuteron coalescence probability in jets / ALICE Collaboration, CERN /ALICE
The transverse-momentum ($p_{\rm T}$) spectra and coalescence parameters $B_2$ of (anti)deuterons are measured in pp collisions at $\sqrt{s} = 13$ TeV in and out of jets. In this measurement, the direction of the leading particle with the highest $p_{\rm T}$ in the event ($p_{\rm T}^{\rm{ lead}} > 5$ GeV/$c$) is used as an approximation for the jet axis [...]
CERN-EP-2022-264; arXiv:2211.15204.- Geneva : CERN, 2022 - 11 p. Draft (restricted): PDF; Fulltext: PDF;

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2022-11-18
19:07
Light (anti)nuclei production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV / ALICE Collaboration, CERN /ALICE
The measurement of the production of deuterons, tritons and ${^{3}\mathrm{He}}$ and their antiparticles in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV is presented in this article. The measurements are carried out at midrapidity ($|y| < 0.5$) as a function of collision centrality using the ALICE detector. [...]
CERN-EP-2022-263; arXiv:2211.14015.- Geneva : CERN, 2022 - 16 p. Draft (restricted): PDF; Fulltext: PDF;

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2022-11-18
14:29
Pseudorapidity densities of charged particles with transverse momentum thresholds in pp collisions at $\sqrt{s}=$ 5.02 and 13 TeV / ALICE Collaboration, CERN
The pseudorapidity density of charged particles with minimum transverse momentum ($p_{\rm T}$) thresholds of 0.15, 0.5, 1, and 2 GeV$/c$ was measured in pp collisions at centre-of-mass energies of $\sqrt{s}=$ 5.02 and 13 TeV with the ALICE detector. The study is carried out for inelastic collisions with at least one primary charged particle having a pseudorapidity ($\eta$) within $\pm0.8$ and $p_{\rm T}$ larger than the corresponding threshold [...]
CERN-EP-2022-262.- Geneva : CERN, 2022 Draft (restricted): PDF;

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2022-11-18
13:54
First measurement of $\mathbf{\Lambda}_\mathbf{c}^\mathbf{+}$ production down to $p_\mathbf{T} = \mathbf{0}$ in pp and p-Pb collisions at $\sqrt{s_\mathbf{NN}}= \mathbf{5.02 TeV}$ / ALICE Collaboration, CERN
The production of prompt ${\mathrm {\Lambda_{c}^{+}}}$ baryons has been measured at midrapidity in the transverse momentum interval $0 < p_{\rm T} < 1$ GeV/$c$ for the first time, in pp and p-Pb collisions at a centre-of-mass energy per nucleon-nucleon collision $\sqrt{s_\mathrm{NN}} = 5.02$ TeV. The measurement was performed in the decay channel $\mathrm{\rm \Lambda_{c}^{+} \to p K^{0}_{S}}$ by applying new decay reconstruction techniques using a Kalman-Filter vertexing algorithm and adopting a machine-learning approach for the candidate selection. [...]
CERN-EP-2022-261; arXiv:2211.14032.- Geneva : CERN, 2022 - 21 p. Draft (restricted): PDF; Fulltext: PDF;

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2022-11-17
04:09
Two-particle transverse momentum correlations in pp and p-Pb collisions at LHC energies / Collaboration, Alice
Two-particle transverse momentum differential correlators, recently measured in Pb-Pb collisions at LHC energies, provide an additional tool to gain insights into particle production mechanisms and infer transport properties, such as the ratio of shear viscosity to entropy density, of the medium created in Pb-Pb collisions. [...]
CERN-EP-2022-230 ; arXiv:2211.08979.
- 21 p.
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2022-11-17
04:09
Production of ${\rm K}^{0}_{\rm{S}}$, $\Lambda$ ($\bar{\Lambda}$), $\Xi^{\pm}$ and $\Omega^{\pm}$ in jets and in the underlying event in pp and p$-$Pb collisions
The production of strange hadrons (K$^{0}_{\rm S}$, $\Lambda$, $\Xi^{\pm}$, and $\Omega^{\pm}$), baryon-to-meson ratios ($\Lambda/{\rm K}^{0}_{\rm S}$, $\Xi/{\rm K}^{0}_{\rm S }$, and $\Omega/{\rm K}^{0}_{\rm S}$), and baryon-to-baryon ratios ($\Xi/\Lambda$, $\Omega/\Lambda$, and $\Omega/\Xi$) associated with jets and the underlying event were measured as a function of transverse momentum ($p_{\rm T}$) in pp collisions at $\sqrt{s} = 13$ TeV and p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with the ALICE detector at the LHC. [...]
CERN-EP-2022-218 ; arXiv:2211.08936.
- 28 p.
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