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1.
Direct observation of the dead-cone effect in quantum chromodynamics / ALICE Collaboration
At particle collider experiments, elementary particle interactions with large momentum transfer produce quarks and gluons (known as partons) whose evolution is governed by the strong force, as described by the theory of quantum chromodynamics (QCD) [1]. The vacuum is not transparent to the partons and induces gluon radiation and quark pair production in a process that can be described as a parton shower [2]. [...]
arXiv:2106.05713; CERN-EP-2021-107.- 2022-05-18 - 20 p.
- Published in : Nature Draft (restricted): PDF; Fulltext: document - PDF; Publication - PDF; 2106.05713 - PDF; Erratum - PDF; External link: Interactions.org article
2.
Production of K$^{*}(892)^{0}$ and $\phi(1020)$ in pp and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / ALICE Collaboration
The production of K$^{*}(892)^{0}$ and $\phi(1020)$ mesons in proton-proton (pp) and lead-lead (Pb$-$Pb) collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV has been measured using the ALICE detector at the Large Hadron Collider (LHC). The transverse momentum ($p_{\mathrm{T}}$) distributions of K$^{*}(892)^{0}$ and $\phi(1020)$ mesons have been measured at mid-rapidity $(|y|<0.5)$ up to $p_{\mathrm{T}}$ $=$ 20 GeV$/c$ in inelastic pp collisions and for several Pb$-$Pb collision centralities. [...]
arXiv:2106.13113; CERN-EP-2021-101.- Geneva : CERN, 2022-09-14 - 20 p. - Published in : Phys. Rev. C 106 (2022) 034907 Draft (restricted): PDF; Fulltext: 2106.13113 - PDF; PhysRevC.106.034907 - PDF;
3.
Charged-particle multiplicity fluctuations in Pb–Pb collisions at $\sqrt{s_{\mathrm {NN}}}$  = 2.76 TeV / ALICE Collaboration
Measurements of event-by-event fluctuations of charged-particle multiplicities in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV using the ALICE detector at the CERN Large Hadron Collider (LHC) are presented in the pseudorapidity range $|\eta|<0.8$ and transverse momentum $0.2 < p_{\rm T} < 2.0$ GeV/$c$. The amplitude of the fluctuations is expressed in terms of the variance normalized by the mean of the multiplicity distribution. [...]
arXiv:2105.05745; CERN-EP-2021-089.- Geneva : CERN, 2021-11-17 - 17 p. - Published in : Eur. Phys. J. C 81 (2021) 1012 Draft (restricted): PDF; Fulltext: 2105.05745 - PDF; document - PDF;
4.
Charm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC / ALICE Collaboration
Recent $p_{\rm T}$-integrated cross section measurements of the ground-state charm mesons and baryons, $\mathrm{D^0}$, $\mathrm{D^+}$, $\mathrm{D_s^+}$, $\Lambda_\mathrm{c}^+$, and $\Xi_\mathrm{c}^0$, are used to evaluate the charm fragmentation fractions and production cross section per unit of rapidity at midrapidity ($|y|<0.5$), in pp collisions at $\sqrt{s} = 5.02$ TeV at the LHC. The latter is $\mathrm{d}\sigma^{\mathrm{c\overline{c}}}/\mathrm{d} y|_{|y| < 0.5}=1165\pm 44(\mathrm{stat})^{+134}_{-101}(\mathrm{syst}) \ \mu\mathrm{b}$. [...]
arXiv:2105.06335; CERN-EP-2021-088.- Geneva : CERN, 2022-01-01 - 14 p. - Published in : Phys. Rev. D 105 (2022) L011103 Draft (restricted): PDF; Fulltext: PhysRevD.105.L011103 - PDF; 2105.06335 - PDF;
5.
Measurement of K$^{*}$(892)$^{\mathrm{\pm}}$ production in inelastic pp collisions at the LHC / ALICE Collaboration
The first results on K$^{*}$(892)$^{\mathrm{\pm}}$ resonance production in inelastic pp collisions at LHC energies of $\sqrt{s} = 5.02$, 8, and 13 TeV are presented. The K$^{*}$(892)$^{\mathrm{\pm}}$ has been reconstructed via its hadronic decay channel K$^{*}$(892)$^{\mathrm{\pm}}$$\rightarrow$$\mathrm {K^0_S}$$~+~\pi^{\pm}$ with the ALICE detector. [...]
arXiv:2105.05760; CERN-EP-2021-086.- 2022-05-10 - 26 p. - Published in : Phys. Lett. B 828 (2022) 137013 2105.05760: PDF; Draft (restricted): PDF; Fulltext: PDF; Fulltext from publisher: PDF;
6.
Measurement of the Cross Sections of $\Xi^0_{c}$ and $\Xi^+_{c}$ Baryons and of the Branching-Fraction Ratio BR($\Xi^0_{c} \rightarrow \Xi^-{e}^+\nu_{ e}$)/BR($\Xi^0_{c} \rightarrow \Xi^-\pi^+$) in pp collisions at 13 TeV / ALICE Collaboration
The $p_{\rm T}$-differential cross sections of prompt charm-strange baryons $\rm \Xi_{c}^{0}$ and $\rm \Xi_{c}^{+}$ were measured at midrapidity (|y| < 0.5) in proton–proton (pp) collisions at a centre-of-mass energy $\sqrt{s}$ = 13 TeV with the ALICE detector at the LHC. The $\rm \Xi_{c}^{0}$ baryon was reconstructed via both the semileptonic decay ($\rm \Xi_{c}^{0} \rightarrow \Xi^{-}e^+ \nu$) and the hadronic decay ($\rm \Xi_{c}^{0} \rightarrow \Xi^{-} \pi^{+}$) channels. [...]
arXiv:2105.05187; CERN-EP-2021-084.- Geneva : CERN, 2021-12-28 - 17 p. - Published in : Phys. Rev. Lett. 127 (2021) 272001 Draft (restricted): PDF; Fulltext: Supplemental Material - PDF; PhysRevLett.127.272001 - PDF; 2105.05187 - PDF;
7.
Measurement of Prompt D$^{0}$, $\Lambda_{c}^{+}$, and $\Sigma_{c}^{0,++}$(2455) Production in Proton–Proton Collisions at $\sqrt s$ = 13  TeV / ALICE Collaboration
The $p_{\rm T}$-differential production cross sections of prompt D$^{0}$, $\Lambda_{\rm c}^{+}$, and $\Sigma_{\rm c}^{0,++}(2455)$ charmed hadrons are measured at midrapidity ($|y| < 0.5$) in pp collisions at $\sqrt{s} = 13$ TeV. This is the first measurement of $\Sigma_{\rm c}^{0,++}$ production in hadronic collisions. [...]
arXiv:2106.08278; CERN-EP-2021-103.- Geneva : CERN, 2022-01-05 - 13 p. - Published in : Phys. Rev. Lett. 128 (2022) 012001 Draft (restricted): PDF; Fulltext: 2106.08278 - PDF; PhysRevLett.128.012001 - PDF;
8.
Investigating the role of strangeness in baryon–antibaryon annihilation at the LHC / ALICE Collaboration
Annihilation dynamics plays a fundamental role in the baryon-antibaryon interaction ($\rm{B}\mbox{-}\rm{\overline{B}}$) at low-energy and its strength and range are crucial in the assessment of possible baryon bound states. Experimental data on annihilation cross sections are available for the $\rm{p}\mbox{-}\rm{\overline{p}}$ system but not in the low relative momentum region. [...]
arXiv:2105.05190; CERN-EP-2021-083.- Geneva : CERN, 2022-04-04 - 22 p. - Published in : Phys. Lett. B 829 (2022) 137060 Draft (restricted): PDF; Fulltext: 2105.05190 - PDF; Publication - PDF;
9.
First measurements of $N$-subjettiness in central Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV / ALICE Collaboration
The ALICE Collaboration reports the first fully-corrected measurements of the $N$-subjettiness observable for track-based jets in heavy-ion collisions. This study is performed using data recorded in pp and Pb$-$Pb collisions at centre-of-mass energies of $\sqrt{s} = 7$ TeV and $\sqrt{s_{\rm NN}} = 2.76$ TeV, respectively. [...]
arXiv:2105.04936; CERN-EP-2021-082.- Geneva : CERN, 2021-10-01 - 34 p. - Published in : JHEP 2110 (2021) 003 Draft (restricted): PDF; Fulltext: 2105.04936 - PDF; document - PDF; Acharya2021_Article_FirstMeasurementsOfN-subjettin - PDF;
10.
Experimental Evidence for an Attractive p-$\phi$ Interaction / ALICE Collaboration
This Letter presents the first experimental evidence of the attractive strong interaction between a proton and a $\phi$ meson. The result is obtained from two-particle correlations of combined $p-\phi \oplus \overline{p}-\phi$ pairs measured in high-multiplicity p-p collisions at $\sqrt{s}~=~13$ TeV by the ALICE collaboration. [...]
arXiv:2105.05578; CERN-EP-2021-081.- Geneva : CERN, 2021-10-20 - 18 p. - Published in : Phys. Rev. Lett. 127 (2021) 172301 Draft (restricted): PDF; Fulltext: PDF; Fulltext from publisher: PDF;

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