2022-03-30 10:00 |
Detaljert visning - Lignende elementer
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2022-03-28 16:46 |
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2022-03-28 11:52 |
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2022-03-28 11:02 |
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2022-03-24 16:52 |
Dielectron production at midrapidity at low transverse momentum in peripheral and semi-peripheral Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV
/ ALICE Collaboration, CERN
/ALICE Collaboration
The first measurement of the ${\rm e}^{+}{\rm e}^{-}$ pair production at low lepton pair transverse momentum ($p_{\rm T,ee}$) and low invariant mass ($m_{\rm ee}$) in non-central Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV at the LHC is presented. The dielectron production is studied with the ALICE detector at midrapidity ($|\eta_{\rm e}| < 0.8$) as a function of invariant mass ($0.4 \leq m_{\rm ee} < 2.7$ GeV/$c^2$) in the 50$-$70% and 70$-$90% centrality classes for $p_{\rm T,ee} < 0.1$ GeV/$c$, and as a function of $p_{\rm T,ee}$ in three $m_{\rm ee}$ intervals in the most peripheral Pb$-$Pb collisions. [...]
arXiv:2204.11732; CERN-EP-2022-068.-
2022 - 19 p.
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2022-03-24 14:45 |
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2022-03-24 11:51 |
Measurement of the J/$\psi$ polarization with respect to the event plane in Pb-Pb collisions at the LHC
/ALICE Collaboration
The polarization of inclusive J/$\psi$ produced in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV at the LHC was studied by ALICE in the dimuon channel, via the measurement of the angular distribution of its decay products. The study was performed in the rapidity region $2.5<y<4$, for three transverse momentum intervals ($2<p_{\rm T}<4$, $4<p_{\rm T}<6$, $6<p_{\rm T}<10$ GeV/$c$) and as a function of the centrality of the collision for $2<p_{\rm T}<6$ GeV/c. [...]
arXiv:2204.10171; CERN-EP-2022-066.-
2022 - 10 p.
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2022-03-24 11:22 |
Measurement of beauty-strange meson production in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV via non-prompt $\mathrm{D_s}^{+}$ mesons
/ ALICE Collaboration, CERN
/ALICE Collaboration
The production yields of non-prompt $\mathrm{D_s}^{+}$ mesons, namely $\mathrm{D_s}^{+}$ mesons from beauty-hadron decays, were measured for the first time as a function of the transverse momentum ($p_{\rm T}$) at midrapidity ($|y|<0.5$) in central and semi-central Pb$-$Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{\rm NN}}=5.02$ TeV with the ALICE experiment at the LHC. The $\mathrm{D_s}^{+}$ mesons and their charge conjugates were reconstructed from the hadronic decay channel $\mathrm{D_s}^{+} \to \phi\pi^+$, with $\phi \to {\rm K}^-{\rm K}^+$, in the $4 < p_{\rm T}<36$ GeV/$c$ and $2 < p_{\rm T}<24$ GeV/$c$ intervals for the 0$-$10% and 30$-$50% centrality classes, respectively. [...]
arXiv:2204.10386; CERN-EP-2022-065.-
2022 - 17 p.
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2022-03-24 11:09 |
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2022-03-24 10:41 |
First measurement of the $\Lambda$-$\Xi$ interaction in proton-proton collisions at the LHC
/ ALICE Collaboration, CERN
/ALICE Collaboration
The first experimental information on the strong interaction between $\Lambda$ and $\Xi^-$ strange baryons is presented in this Letter. The correlation function of $\Lambda-\Xi^-$ and $\overline{\Lambda}-\overline{\Xi}^{+}$ pairs produced in high-multiplicity proton-proton (pp) collisions at $\sqrt{s}$~=~13~TeV at the LHC is measured as a function of the relative momentum of the pair. [...]
arXiv:2204.10258; CERN-EP-2022-063.-
2022 - 12 p.
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