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ALICE Public Notes

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2022-12-23
12:27
Supplemental material: 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 $p_{\rm T}$. [...]
ALICE-PUBLIC-2022-020.- Geneva : CERN, 2022 - 7. Fulltext: PDF;

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2022-11-24
17:12
Enhanced deuteron coalescence probability in jets. Supplemental Material: a model based on PYTHIA 8 and simple nucleon coalescence} /ALICE collaboration
This Note contains a detailed description of a simple nucleon coalescence model, where the phase space distributions of nucleons are generated using PYTHIA 8 with the Monash 2013 tuning. The predictions of this model can be compared to measurements of the transverse-momentum ($p_{\rm T}$) spectra and coalescence parameters $B_2$ of (anti)deuterons in pp collisions at $\sqrt{s} = $13 TeV, in and out of jets [...]
ALICE-PUBLIC-2022-019.- Geneva : CERN, 2022 Fulltext: PDF;

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2022-04-01
16:12
Physics Preliminary Summary: W$^\pm$-boson production in p$-$Pb collisions at $\sqrt{s_{NN}} = 8.16$ TeV and Pb$-$Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV /ALICE collaboration
The production of the W$^\pm$ bosons measured in p$-$Pb collisions at a centre-of-mass energy per nucleon--nucleon collision $\sqrt{s_{\rm NN}} = 8.16$ TeV and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with ALICE at the LHC is presented. The W$^\pm$ bosons are measured via their muonic decay channel, with the muon reconstructed in the pseudorapidity region $-4 < \eta^\mu_{\rm lab} < -2.5$ with transverse momentum $p_{\rm T}^\mu > 10$ GeV/$c$. [...]
ALICE-PUBLIC-2022-018.- Geneva : CERN, 2022 - 30. Physics Preliminary Summary : PDF;

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2022-04-01
15:47
Physics Preliminary Summary: Measurement of the production of charm jets tagged with ${\rm D^{0}}$ mesons in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV /ALICE collaboration
The measurement of the production of charm jets, identified by the presence of a ${\rm D^0}$ meson in the jet constituents, is presented in proton–proton collisions at centre-of-mass energies of $\sqrt{s}$ = 5.02 and 13 TeV with the ALICE detector at the CERN LHC. The D0 mesons were reconstructed from their hadronic decay ${\rm D^0} \rightarrow {\rm K^-}\pi^+$ and the respective charge conjugate. [...]
ALICE-PUBLIC-2022-017.- Geneva : CERN, 2022 - 26. Physics Preliminary Summary: PDF;

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2022-04-01
11:10
Physics Preliminary Summary: Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV /ALICE collaboration
This Note presents new measurements of the fragmentation properties of jets in both proton–proton (pp) and heavy-ion collisions with the ALICE experiment at the Large Hadron Collider (LHC). We report distributions of the fraction $z_r$ of transverse momentum carried by subjets of radius $r$ within jets of radius $R$ [...]
ALICE-PUBLIC-2022-016.- Geneva : CERN, 2022 - 20. Physics Preliminary Summary: PDF;

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2022-04-01
11:01
Physics Preliminary Summary: Measurements of the groomed jet radius and momentum splitting fraction with the soft drop and dynamical grooming algorithms in pp collisions at $\sqrt{s}=5.02$ TeV /ALICE collaboration
This Note presents measurements of the groomed jet radius and momentum splitting fraction in pp collisions at $\sqrt{s}=5.02$ TeV with the ALICE detector at the Large Hadron Collider. Inclusive charged-particle jets are reconstructed at midrapidity using the anti-$k_{\rm{T}}$ algorithm for transverse momentum $60<p_{\rm T}^{\rm ch jet}<80$ GeV/$c$. [...]
ALICE-PUBLIC-2022-015.- Geneva : CERN, 2022 - 15. Physics Preliminary Summary: PDF;

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2022-04-01
10:30
Physics Preliminary Summary: Underlying-event properties in pp and p$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV /ALICE collaboration
We report about the properties of the underlying event measured with ALICE at the LHC in pp and p$-$Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV. The event activity, quantified by charged-particle number and summed-$p_{\rm T}$ densities, is measured as a function of the leading-particle transverse momentum ($p_{\rm T}^{\rm trig}$). [...]
ALICE-PUBLIC-2022-014.- Geneva : CERN, 2022 - 26. Physics Preliminary Summary: PDF;

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2022-03-31
23:03
Physics Preliminary Summary: Measurement of $\psi$(2S) production as a function of charged-particle pseudorapidity density in pp collisions at $\sqrt{s}$ = 13 TeV and p–Pb collisions at $\sqrt{s_{\rm NN}}$ = 8.16 TeV with ALICE at the LHC /ALICE collaboration
Charmonium production in pp collisions at center-of-mass energy of $\sqrt{s}$ = 13 TeV and p–Pb collisions at center-of-mass energy per nucleon pair of $\sqrt{s_{\rm NN}}$ = 8.16 TeV is studied as a function of charged-particle pseudorapidity density with ALICE. Ground and excited charmonium states (J/$\psi$, $\psi$(2S)) are measured from their dimuon decays in the interval of rapidity in the center-of-mass frame $2.5 < y_{\rm cms} < 4.0$ for pp collisions, and $2.03 < y_{\rm cms} < 3.53$ and $-4.46 < y_{\rm cms} < -2.96$ for p$-$Pb collisions. [...]
ALICE-PUBLIC-2022-013.- Geneva : CERN, 2022 - 16. Physics Preliminary Summary: PDF;

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2022-03-31
18:45
Physics Preliminary Summary: First measurement of antideuteron number fluctuations at energies available at the Large Hadron Collider /ALICE collaboration
The first measurement of event-by-event antideuteron number fluctuations in high energy heavy-ion collisions is presented. The measurements are carried out at midrapidity ($|\eta| < 0.8$) as a function of collision centrality in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV using the ALICE detector. [...]
ALICE-PUBLIC-2022-012.- Geneva : CERN, 2022 - 8. Physics Preliminary Summary: PDF;

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2022-03-31
18:44
Physics Preliminary Summary: Multiplicity and rapidity dependence of ${\rm K}^*(892)^0$ and $\phi(1020)$ production in p–Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV /ALICE collaboration
The transverse-momentum ($p_{\rm T}$) spectra of ${\rm K}^*(892)^0$ and $\phi(1020)$ measured with the ALICE detector up to $p_{\rm T}$ = 16 GeV/$c$ in the rapidity range $-1.2 < y < 0.3$, in p–Pb collisions at center-of-mass energy per nucleon–nucleon collision $\sqrt{s_{\rm NN}}$ = 5.02 TeV are presented as a function of charged particle multiplicity and rapidity. The measured $p_{\rm T}$ distributions show a dependence on both multiplicity and rapidity at low $p_{\rm T}$ whereas no significant dependence is observed at high $p_{\rm T}$. [...]
ALICE-PUBLIC-2022-011.- Geneva : CERN, 2022 - 19. Physics Preliminary Summary: PDF;

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