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CERN Document Server 318 notices trouvées  1 - 10suivantfin  aller vers la notice: La recherche a duré 0.56 secondes. 
1.
Production of light (anti)nuclei in pp collisions at $ \sqrt{s} $ = 13 TeV / ALICE Collaboration
Understanding the production mechanism of light (anti)nuclei is one of the key challenges of nuclear physics and has important consequences for astrophysics, since it provides an input for indirect dark- matter searches in space. In this paper, the latest results about the production of light (anti)nuclei in pp collisions at $sqrt{s}$ = 13 TeV are presented, focusing on the comparison with the predictions of coalescence and thermal models. [...]
arXiv:2109.13026; CERN-EP-2021-194.- Geneva : CERN, 2022-01-20 - 26 p. - Published in : JHEP 2201 (2022) 106 Draft (restricted): PDF; Fulltext: document - PDF; 2109.13026 - PDF;
2.
Measurement of prompt $\rm{D_{s}^{+}}$-meson production and azimuthal anisotropy in Pb--Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / ALICE Collaboration
The production yield and angular anisotropy of prompt ${D_s^+}$ mesons were measured as a function of transverse momentum ($p_{ T}$) in Pb-Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{ NN}} = 5.02$ TeV collected with the ALICE detector at the LHC. ${D_s^+}$ mesons and their charge conjugates were reconstructed at midrapidity ($|y|<0.5$) from their hadronic decay channel ${D_s^+ \to \phi \pi^+}$, with ${\phi \to K^-K^+}$, in the $p_{ T}$ intervals $210$ GeV/$c$, the measured ${D_s^+}$-meson nuclear modification factor $R_{ AA}$ is consistent with the one of non-strange D mesons within uncertainties, while at lower $p_{ T}$ a hint for a ${D_s^+}$-meson $R_{ AA}$ larger than that of non-strange D mesons is seen. [...]
arXiv:2110.10006; CERN-EP-2021-187.- Geneva : CERN, 2022-04-10 - 29 p. - Published in : Phys. Lett. B 827 (2022) 136986 Draft (restricted): PDF; Fulltext: PDF; Fulltext from publisher: PDF;
3.
Investigating charm production and fragmentation via azimuthal correlations of prompt D mesons with charged particles in pp collisions at $\mathbf{\sqrt{\it s} = 13}$ TeV / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Adolfsson, Jonatan (Lund U.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) et al.
Angular correlations of heavy-flavour and charged particles in high-energy proton-proton collisions are sensitive to the production mechanisms of heavy quarks and to their fragmentation as well as hadronisation processes. The measurement of the azimuthal-correlation function of prompt D mesons with charged particles in proton--proton collisions at a centre-of-mass energy of $\sqrt{s} = 13$ TeV with the ALICE detector is reported, considering D$^{0}$, D$^{+}$, and D$^{*+}$ mesons in the transverse-momentum interval $3 < p_{\rm T} < 36$ GeV/$c$ at midrapidity ($|y| < 0.5$), and charged particles with $p_{\rm T} > 0.3$ GeV/$c$ and pseudorapidity $|\eta| < 0.8$. [...]
arXiv:2110.10043; CERN-EP-2021-184.- Geneva : CERN, 2022-04-19 - 33 p. - Published in : Eur. Phys. J. C 82 (2022) 335 Draft (restricted): PDF; Fulltext: 2110.10043 - PDF; document - PDF;
4.
Inclusive $\text {J}/\psi $ production at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV / ALICE Collaboration
We report on the inclusive J/ψ production cross section measured at the CERN Large Hadron Collider in proton–proton collisions at a centre-of-mass energy s = 13 TeV. The J/ψ mesons are reconstructed in the e+e− decay channel and the measurements are performed at midrapidity (|y| < 0.9) in the transverse-momentum interval 0 < pT < 40 GeV/c, using a minimum-bias data sample corresponding to an integrated luminosity Lint = 32.2 nb−1 and an Electromagnetic Calorimeter triggered data sample with Lint = 8.3 pb−1. [...]
arXiv:2108.01906; CERN-EP-2021-160.- Geneva : CERN, 2021-12-21 - 25 p. - Published in : Eur. Phys. J. C 81 (2021) 1121 Draft (restricted): PDF; Fulltext: 2108.01906 - PDF; document - PDF;
5.
Prompt and non-prompt J/ψ production cross sections at midrapidity in proton-proton collisions at $ \sqrt{\mathrm{s}} $ = 5.02 and 13 TeV / ALICE Collaboration
The production of J/$\psi$ is measured at midrapidity ($|y|<0.9$) in proton-proton collisions at $\sqrt{s}$ = 5.02 and 13 TeV, through the dielectron decay channel, using the ALICE detector at the Large Hadron Collider. The data sets used for the analyses correspond to integrated luminosities of \mbox{$\mathcal{L}_{\rm int}$ = 19.4$\pm$0.4~nb$^{-1}$} and \mbox{ $\mathcal{L}_{\rm int}$ = 32.3$\pm$1.6~nb$^{-1}$} at $\sqrt{s}$ = 5.02 and 13 TeV, respectively. [...]
arXiv:2108.02523; CERN-EP-2021-152.- Geneva : CERN, 2022-03-28 - 35 p. - Published in : JHEP 2203 (2022) 190 Draft (restricted): PDF; Fulltext: 2108.02523 - PDF; document - PDF;
6.
Measurement of the groomed jet radius and momentum splitting fraction in pp and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / ALICE Collaboration
This article presents groomed jet substructure measurements in pp and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with the ALICE detector. The Soft Drop grooming algorithm provides access to the hard parton splittings inside a jet by removing soft wide-angle radiation. [...]
arXiv:2107.12984; CERN-EP-2021-151.- Geneva : CERN, 2022-03-07 - 18 p. - Published in : Phys. Rev. Lett. 128 (2022) 102001 Draft (restricted): PDF; Fulltext: PhysRevLett.128.102001 - PDF; 2107.12984 - PDF;
7.
Polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons along the beam direction in Pb–Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV / Acharya, Shreyasi (Calcutta, VECC) ; Adamova, Dagmar (Rez, Nucl. Phys. Inst.) ; Adler, Alexander (Goethe U., Frankfurt, Inst. Inform.) ; Aglieri Rinella, Gianluca (CERN) ; Agnello, Michelangelo (Turin Polytechnic) ; Agrawal, Neelima (INFN, Bologna) ; Ahammed, Zubayer (Calcutta, VECC) ; Ahmad, Shakeel (Aligarh Muslim U.) ; Ahn, Sang Un (KISTI, Daejeon) ; Ahuja, Ishaan (Kosice U.) et al.
The polarization of the $\Lambda$ and $\overline{\Lambda}$ hyperons along the beam ($z$) direction, $P_{z}$, has been measured in Pb–Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV recorded with ALICE at the Large Hadron Collider (LHC). The largest contribution to $P_z$ comes from elliptic flow induced vorticity and can be characterized by the second Fourier sine coefficient $P_{z,s2}$ = $⟨P_z sin(2 \varphi − 2 \Psi_2 )⟩$, where $\varphi$ is the hyperon azimuthal emission angle, and $\Psi_2$ is the elliptic flow plane angle. [...]
arXiv:2107.11183; CERN-EP-2021-148.- Geneva : CERN, 2022-04-29 - 18 p. - Published in : Phys. Rev. Lett. 128 (2022) 172005 Draft (restricted): PDF; Fulltext: PDF;
8.
Measurements of the groomed and ungroomed jet angularities in pp collisions at $\sqrt{s} = 5.02$ TeV / ALICE Collaboration
The jet angularities are a class of jet substructure observables which characterize the angular and momentum distribution of particles within jets. These observables are sensitive to momentum scales ranging from perturbative hard scatterings to nonperturbative fragmentation into final-state hadrons. [...]
arXiv:2107.11303; CERN-EP-2021-145.- Geneva : CERN, 2022-05-10 - 39 p. - Published in : JHEP 2205 (2022) 061 Draft (restricted): PDF; Fulltext: 2107.11303 - PDF; document - PDF;
9.
Study of very forward energy and its correlation with particle production at midrapidity in pp and p-Pb collisions at the LHC / ALICE Collaboration
The very forward energy is a powerful tool for characterising the proton fragmentation in pp and p-Pb collisions and, studied in correlation with particle production at midrapidity, provides direct insights into the initial stages and the subsequent evolution of the collision. Furthermore, the correlation between the forward energy and the production of particles with large transverse momenta at midrapidity provides information complementary to the measurements of the underlying event, which are usually interpreted in the framework of models implementing centrality-dependent multiple parton interaction. [...]
arXiv:2107.10757; CERN-EP-2021-144.- Geneva : CERN, 2022-08-05 - 23 p. - Published in : JHEP 2208 (2022) 086 Draft (restricted): PDF; Fulltext: document - PDF; 2107.10757 - PDF;
10.
Hypertriton Production in p-Pb Collisions at $\sqrt {s_{NN}}$=5.02  TeV / ALICE Collaboration
The study of nuclei and antinuclei production has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. The first measurement of the production of ${\rm ^{3}_{\Lambda}\rm H}$ in p-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV is presented in this Letter. [...]
arXiv:2107.10627; CERN-EP-2021-139.- 2022-06-23 - 19 p. - Published in : Phys. Rev. Lett. 128 (2022) 252003 Draft (restricted): PDF; Fulltext: PDF; Fulltext from publisher: PDF;

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