High-Energy Particle Collisions Research

We explore the quasiparticle properties of a single $Λ$ hyperon propagating through symmetric nuclear matter using the Green's function formalism. The $NΛ$ interaction is described by a non-local regulated low-momentum contact potential with a leading-order constant term and a next-to-leading-order derivative correcti…

We explore the quasiparticle properties of a single $Λ$ hyperon propagating through symmetric nuclear matter using the Green's function formalism. The $NΛ$ interaction is described by a non-local regulated low-momentum contact potential with a leading-order constant term and a next-to-leading-order derivative correcti…

The dynamical influence of $Λ$ hyperons on the excited-state properties of closed-shell multi-$Λ$ Ca, Ni, Sn and Pb hypernuclei is investigated using the self-consistent Hartree-Fock + Random Phase Approximation in coordinate space. The strength distributions for the isoscalar monopole, isovector dipole, and isoscalar…

International audience

The first measurements of the average transverse-momentum fraction ($\langle z \rangle$) as a function of transverse momentum ($p_{\rm T}$) for strange baryons ($\Lambda$ and $\bar{\Lambda}$) and strange mesons (K$^0_{\rm S}$), produced in mini-jets defined through angular correlations in pp collisions at $\sqrt{s}=13…

A bstract The yields of prompt and non-prompt J/ ψ and the fraction of non-prompt J/ ψ are measured at midrapidity (| y | < 0.9) via the dielectron decay channel as a function of the midrapidity charged-particle multiplicity (| η | < 0.9) in pp collisions at $$\sqrt{s}=13$$ TeV. The J/ ψ yields and the multiplicity ar…

The latest experimental studies related to the search for the Chiral Magnetic Effect (CME) in Pb–Pb collisions at s NN = 5.02 TeV recorded with the ALICE detector at the Large Hadron Collider (LHC) are presented. Charge-dependent two-particle correlations relative to the reaction plane are measured for charged particl…

A bstract The probability to observe a specific number of strange and multi-strange hadrons ( n S ), denoted as P( n S ), is measured by ALICE at midrapidity (| y | < 0 . 5) in $$\sqrt{s}=5.02$$ TeV proton-proton (pp) collisions, dividing events into several multiplicity-density classes. Exploiting, for the first time…

A bstract Measurements of transverse momentum ( p T ) and pseudorapidity ( η ) dependent flow vector fluctuations in p–Pb collisions at $$\sqrt{{s}_{NN}}=5.02$$ TeV at the CERN Large Hadron Collider are presented. By studying long-range two-particle correlations with a template fit method, potential biases from non-fl…

Per-trigger yields of π 0 − hadron correlations were measured in semicentral Pb-Pb collisions at s NN = 5.02 TeV in ALICE at the CERN Large Hadron Collider. The reconstructed π 0 → γ γ , with a transverse momentum of 11 GeV / c < p T ( π 0 ) < 14 GeV / c , is used as the trigger particle to calculate yields of associa…

The centrality dependence of strange ( K S 0 , Λ + Λ ¯ ) and multistrange ( Ξ − + Ξ ¯ + , Ω − + Ω ¯ + ) hadron production is measured by ALICE in the Large Hadron Collider (LHC) lead-lead (Pb-Pb) collisions at a center-of-mass energy per nucleon pair s N N = 5.02 TeV, using the full dataset collected during the LHC Ru…

(Multi-)strange particle production rates and transverse momentum distributions are measured at midrapidity ( | y | < 0.5 ) as a function of the charged-particle multiplicity density by the ALICE experiment at the CERN Large Hadron Collider (LHC), using proton-proton collisions at a center-of-mass energy of s = 5.02 T…