EMMI

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2023-01-26
00:53

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2023-01-26
00:47

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2023-01-26
00:40

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2023-01-26
00:31
OpenAccess [GSI-2023-00292] Journal Article
; ; ; et al
Gluon condensates and effective gluon mass
[2201.09747]
OpenAccess: Download fulltextPDF;

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2023-01-26
00:21

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2023-01-19
12:11
[GSI-2023-00212] Dataset

Production of light (anti)nuclei in pp collisions at $\sqrt{s}~=~5.02$ TeV
The study of the production of nuclei and antinuclei in pp collisions has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. In this paper, the production of protons, deuterons and $^3$He and their charge conjugates at midrapidity is studied as a function of the charged-particle multiplicity in inelastic pp collisions at $\sqrt{s}=5.02$ TeV using the ALICE detector. [...]

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2023-01-19
12:08
[GSI-2023-00211] Dataset

Observation of a multiplicity dependence in the $p_{\rm T}$-differential charm baryon-to-meson ratios in proton-proton collisions at $\sqrt{s} = 13$ TeV
The production of prompt D0, Ds+, and Λc+ hadrons, and their ratios, Ds+/D0 and Λc+/D0, are measured in proton–proton collisions at $\sqrt{s}$ = 13 TeV at midrapidity (|y|<0.5) with the ALICE detector at the LHC. The measurements are performed as a function of the charm-hadron transverse momentum (p$_T$) in intervals of charged-particle multiplicity, measured with two multiplicity estimators covering different pseudorapidity regions. [...]

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2023-01-19
12:05
[GSI-2023-00210] Dataset

Investigating the role of strangeness in baryon$-$antibaryon annihilation at the LHC
Annihilation dynamics plays a fundamental role in the baryon--antibaryon ($B-\overline{B}$) interaction 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 $p-\overline{p}$ system but not in the low relative momentum region. [...]

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2023-01-19
12:02
[GSI-2023-00208] Dataset

Investigating charm production and fragmentation via azimuthal correlations of prompt D mesons with charged particles in pp collisions at $\sqrt{s} = 13$ TeV
The measurement of the azimuthal-correlation function of prompt D mesons with charged particles in pp 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 $3 0.3$ GeV/$c$ and pseudorapidity $|\eta| < 0.8$ This measurement has an improved precision and provides an extended transverse-momentum coverage compared to previous ALICE measurements at lower energies. The study is also performed as a function of the charged-particle multiplicity, showing no modifications of the correlation function with multiplicity within uncertainties. [...]

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2023-01-19
11:59
[GSI-2023-00206] Dataset

Polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons along the beam direction in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV
The polarization of the $\Lambda$ and $\overline\Lambda$ hyperons along the beam ($z$) direction, $P_{\rm z}$, has been measured in Pb--Pb collisions at $\sqrt{s_{\rm NN}} =$ 5.02 TeV recorded with ALICE at the Large Hadron Collider (LHC). The largest contribution to $P_{\rm z}$ comes from elliptic flow induced vorticity and can be characterized by the second Fourier sine coefficient $P_{\rm z,\,{\rm s2}} = \langle{P_{\rm z}\sin(2\varphi - 2 \Psi_{\rm 2})}\rangle$, where $\varphi$ is the hyperon azimuthal emission angle, and $\Psi_{\rm 2}$ is the elliptic flow plane angle. [...]

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