# ALICE Papers

Letzte Einträge:
2023-01-30
18:45
 Symmetry plane correlations in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV / ALICE Collaboration, CERN /ALICE A newly developed observable for correlations between symmetry planes, which characterize the direction of the anisotropic emission of produced particles, is measured in Pb--Pb collisions at $\sqrt{s_\text{NN}}$~=~2.76~TeV with ALICE. This so-called Gaussian Estimator allows for the first time the study of these quantities without the influence of correlations between different flow amplitudes. [...] CERN-EP-2023-012.- Geneva : CERN, 2023 Draft (restricted): PDF;

2023-01-26
11:16
 ALICE upgrades during the LHC Long Shutdown 2 / ALICE Collaboration, CERN /ALICE A Large Ion Collider Experiment (ALICE) has been conceived and constructed as a heavy-ion experiment at the LHC. During LHC Runs 1 and 2, it has produced a wide range of physics results using all collision systems available at the LHC. [...] CERN-EP-2023-009.- Geneva : CERN, 2023 Draft (restricted): PDF;

2023-01-23
12:50
 Exploring the non-universality of charm hadronisation through the measurement of the fraction of jet longitudinal momentum carried by $\Lambda_{\rm c}^{+}$ baryons in pp collisions Recent measurements of charm-baryon production in hadronic collisions have questioned the universality of charm-quark fragmentation across different collision systems. [...] CERN-EP-2023-005 ; arXiv:2301.13798. - 2023. - 9 p. Draft (restricted)

2022-12-20
14:34
 Azimuthal anisotropy of jet particles in p-Pb and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV /ALICE Collaboration The azimuthal anisotropy of particles associated with jets (jet particles) at midrapidity is measured for the first time in p-Pb and Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV down to transverse momentum ($p_{\rm T}$) of 0.5 GeV/$c$ and 2 GeV/$c$, respectively, with ALICE. The second-order Fourier coefficient of the jet-particle azimuthal distribution ($v_2$) in high-multiplicity p-Pb collisions is positive, with a significance reaching 6.8$\sigma$ at low $p_{\rm T}$. [...] arXiv:2212.12609; CERN-EP-2022-290.- Geneva : CERN, 2022 - 12 p. Draft (restricted): PDF; Fulltext: PDF;

2022-12-09
16:41
 First measurement of prompt and non-prompt ${\rm D^{*+}}$ vector meson spin alignment in pp collisions at $\sqrt{s} = 13$ TeV This letter reports the first measurement of spin alignment, with respect to the helicity axis, for ${\rm D^{*+}}$ vector mesons and their charge conjugates from charm-quark hadronisation (prompt) and from beauty-meson decays (non-prompt) in hadron collisions. [...] arXiv:2212.06588 ; CERN-EP-2022-283. - 2022. - 16 p. Draft (restricted) - Fulltext

2022-11-29
18:50
 Measurement of (anti)nuclei production in p-Pb collisions at $\sqrt{s_{\rm NN}} = 8.16$ TeV Measurements of (anti)proton, (anti)deuteron, and (anti)$^3$He production in the rapidity range $-1 2022-11-24 14:42  Production of pions, kaons and protons as a function of the transverse event activity in pp collisions at$\sqrt{s}$= 13 TeV /ALICE Collaboration The production of$\pi^\pm$, K$^\pm$, and ($\overline{\mathrm{p}}$)p is measured in pp collisions at$\sqrt{s}$= 13 TeV in different topological regions of the events. Particle transverse momentum ($p_{\rm T}$) spectra are measured in the toward'', transverse'', and away'' angular regions defined with respect to the direction of the leading particle in the event. [...] arXiv:2301.10120; CERN-EP-2022-286.- Geneva : CERN, 2022 - 25 p. Draft (restricted): PDF; Fulltext: PDF; 2022-11-23 19:35  Multiplicity dependence of charged-particle production in pp, p-Pb, Xe-Xe and Pb-Pb collisions at the LHC /ALICE Collaboration Multiplicity ($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$TeV up to 13 TeV. A sequential two-dimensional unfolding procedure is used to extract the correlation between the transverse momentum of primary charged particles and the charged-particle multiplicity of the corresponding collision. [...] arXiv:2211.15326; CERN-EP-2022-266.- Geneva : CERN, 2022 - 24 p. Draft (restricted): PDF; Fulltext: PDF; 2022-11-18 22:59  Enhanced deuteron coalescence probability in jets /ALICE Collaboration The transverse-momentum ($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$) is used as an approximation for the jet axis [...] arXiv:2211.15204; CERN-EP-2022-264.- Geneva : CERN, 2022 - 11 p. Draft (restricted): PDF; Fulltext: PDF; 2022-11-18 19:07  Light (anti)nuclei production in Pb-Pb collisions at$\sqrt{s_{\mathrm{NN}}}=5.02$TeV /ALICE Collaboration The measurement of the production of deuterons, tritons and${^{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. [...] arXiv:2211.14015; CERN-EP-2022-263.- Geneva : CERN, 2022 - 16 p. Draft (restricted): PDF; Fulltext: PDF;