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CERN Document Server 244 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 0.80 секунд. 
1.
First polarisation measurement of coherently photoproduced J/$\psi$ in ultra-peripheral Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / Acharya, Shreyasi (Clermont-Ferrand U.) ; 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. /ALICE
The first measurement of the polarisation of coherently photoproduced J/$\psi$ mesons in ultra-peripheral Pb$-$Pb collisions, using data at $\sqrt{s_{\rm NN}} = 5.02$ TeV , is presented. The J/$\psi$ meson is measured via its dimuon decay channel in the forward rapidity interval $-4.0 < y < -2.5$ using the ALICE detector at the CERN LHC. [...]
arXiv:2304.10928; CERN-EP-2023-068.- Geneva : CERN, 2023 - 19 p. Draft (restricted): PDF; Fulltext: PDF;
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2.
Azimuthal correlations of heavy-flavor hadron decay electrons with charged particles in pp and p–Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV / ALICE Collaboration
The azimuthal ($\Delta\varphi$) correlation distributions between heavy-flavor decay electrons and associated charged particles are measured in pp and p–Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV. Results are reported for electrons with transverse momentum $4<p_{\rm T}<16$ GeV/$c$ and pseudorapidity $|\eta|<0.6$. [...]
arXiv:2303.00591; CERN-EP-2023-024.- Geneva : CERN, 2023-08-22 - 38 p. - Published in : Eur. Phys. J. C 83 (2023) 741 Draft (restricted): PDF; Fulltext: document - PDF; 2303.00591 - PDF;
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3.
Measurement of the $\Lambda$ hyperon lifetime / ALICE Collaboration
A new, more precise measurement of the $\Lambda$ hyperon lifetime is performed using a large data sample of Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with ALICE. The $\Lambda$ and $\overline{\Lambda}$ hyperons are reconstructed at midrapidity using their two-body weak decay channel $\Lambda \rightarrow {\rm p}+\pi^-$ and $\overline{\Lambda} \rightarrow \overline{\rm p}+\pi^+$. [...]
arXiv:2303.00606; CERN-EP-2023-020.- Geneva : CERN, 2023-08-11 - 15 p. - Published in : Phys. Rev. D 108 (2023) 032009 Draft (restricted): PDF; Fulltext: Publication - PDF; 2303.00606 - PDF;
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4.
Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton-proton collisions at $ \sqrt{s} $ = 13 TeV / ALICE Collaboration
The fractions of non-prompt (i.e. originating from beauty-hadron decays) D$^0$ and D$^+$ mesons with respect to the inclusive yield are measured as a function of the charged-particle multiplicity in proton--proton collisions at a centre-of-mass energy of $\sqrt{s} = 13$ TeV with the ALICE detector at the LHC. [...]
arXiv:2302.07783; CERN-EP-2023-018.- Geneva : CERN, 2023-10-16 - 28 p. - Published in : JHEP 2310 (2023) 092 Draft (restricted): PDF; Fulltext: 2302.07783 - PDF; document - PDF;
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5.
Symmetry plane correlations in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$TeV / ALICE Collaboration
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. [...]
arXiv:2302.01234; CERN-EP-2023-012.- Geneva : CERN, 2023-07-07 - 28 p. - Published in : Eur. Phys. J. C 83 (2023) 576 Draft (restricted): PDF; Fulltext: 2302.01234 - PDF; document - PDF;
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6.
ALICE upgrades during the LHC Long Shutdown 2 / ALICE Collaboration
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. [...]
arXiv:2302.01238; CERN-EP-2023-009.- Geneva : CERN, 2024-05-23 - 159 p. - Published in : JINST 19 (2024) P05062 Draft (restricted): PDF; Fulltext: document - PDF; 2302.01238 - PDF;
In : The Large Hadron Collider and The Experiments for Run 3
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7.
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 / ALICE Collaboration
Recent measurements of charm-baryon production in hadronic collisions have questioned the universality of charm-quark fragmentation across different collision systems. In this work the fragmentation of charm quarks into charm baryons is probed, by presenting the first measurement of the longitudinal jet momentum fraction carried by $\Lambda_{\rm c}^{+}$ baryons, $z^{\mathrm{ch}}_\mathrm{||}$, in hadronic collisions. [...]
arXiv:2301.13798; CERN-EP-2023-005.- Geneva : CERN, 2024-04-01 - 16 p. - Published in : Phys. Rev. D 109 (2024) 072005 Draft (restricted): PDF; Fulltext: PDF;
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8.
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, 2024-08-29 - 24 p. - Published in : JHEP 2408 (2024) 234 Draft (restricted): PDF; Fulltext: 2212.12609 - PDF; document - PDF;
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9.
First measurement of prompt and non-prompt ${\rm D^{*+}}$ vector meson spin alignment in pp collisions at $\sqrt{s} = 13$ TeV / ALICE Collaboration
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. The measurements were performed at midrapidity ($|y|<0.8$) as a function of transverse momentum ($p_{\rm T}$) in proton-proton (pp) collisions collected by ALICE at the centre-of-mass energy $\sqrt{s} = 13$ TeV. [...]
arXiv:2212.06588; CERN-EP-2022-283.- Geneva : CERN, 2023-09-20 - 15 p. - Published in : Phys. Lett. B 846 (2023) 137920 Draft (restricted): PDF; Fulltext: 2212.06588 - PDF; Publication - PDF;
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10.
Measurement of (anti)nuclei production in p-Pb collisions at $\sqrt{s_{\rm NN}} = 8.16$ TeV / ALICE Collaboration
Measurements of (anti)proton, (anti)deuteron, and (anti)$^3$He production in the rapidity range $-1<y< 0$ as a function of the transverse momentum and event multiplicity in p-Pb collisions at a center-of-mass energy per nucleon-nucleon pair $\sqrt{s_{\rm NN}} = 8.16$ TeV are presented. The coalescence parameters $B_2$ and $B_3$, measured as a function of the transverse momentum per nucleon and of the mean charged-particle multiplicity density, confirm a smooth evolution from low to high multiplicity across different collision systems and energies. [...]
arXiv:2212.04777; CERN-EP-2022-275.- Geneva : CERN, 2023-09-15 - 17 p. - Published in : Phys. Lett. B 846 (2023) 137795 Draft (restricted): PDF; Fulltext: 2212.04777 - PDF; Publication - PDF;
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CERN Document Server : 244 записей найдено   1 - 10следующийконец  перейти к записи:
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