Showing 307 results for Author: Jo J. Schambach
Jun, 2026
Journal
This Letter presents measurements of long-range transverse-momentum correlations using a new observable, 𝑣0(𝑝T), serving as a probe of event-by-event radial-flow fluctuations, the underlying radial expansion, and the medium’s properties in heavy-ion collisions. Results are reported for inclusive charged particles, pions, kaons, and protons across various centrality interv…
Jun, 2026
Journal
A signal consistent with the Ω(2012) baryon has been observed with a significance of 15𝜎 in pp collisions at √𝑠=13 TeV at the LHC. In this paper, the analysis technique is described and measurements of the mass and width of the Ω(2012) are reported, along with the first measurement of its transverse-momentum spectrum and yield. This paper corroborates the observation b…
Jun, 2026
Journal
Event-by-event fluctuations of the event-wise mean transverse momentum, ⟨pT⟩, of charged particles produced in proton–proton(pp)collisions at √s =5.02TeV,XeXe collisions at √ √ sNN = 5.44TeV, and Pb–Pb collisions at sNN =5.02TeVarestudiedusingtheALICEdetectorbased on the integral correlator⟨⟨ pT pT⟩⟩. The correlator strength is found to decrease monotonically with increasi…
Jun, 2026
Journal
Quantum Chromodynamics predicts a phase transition from hadronic matter to quark–gluon plasma (QGP) at high temperatures and energy densities, where quarks and gluons (partons) are no longer confined within hadrons. The QGP forms in ultrarelativistic heavy-ion collisions. Anisotropic flow coefficients, quantifying the azimuthal expansion of produced matter, probe QGP prope…
Jun, 2026
Journal
The distribution of angular correlations between prompt charm hadrons and primary charged particles in pp collisions is sensitive to the charm-quark hadronisation process. In this letter, charm-baryon correlations are measured for the first time by studying the azimuthal-angle difference between charged particles and prompt Λ+ c baryons produced in pp collisions at a centr…
Jun, 2026
Journal
he measurement of three-dimensional femtoscopic correlations between identical charged kaons (K±K±) produced in p–Pb collisions at center-of-mass energy per nucleon pair √sNN= 5.02 TeV with ALICE at the LHC is presented for the first time. This measurement, supplementary to those in pp and Pb–Pb collisions, allows understanding the particle-production mechanisms at differe…
Jun, 2026
Journal
This paper presents a study of the inclusive forward J/ψ yield as a function of forward charged-particle multiplicity in pp collisions at √s = 13TeV using data collected by the ALICE experiment at the CERN LHC. The results are presented in terms of relative J/ψ yields and relative charged-particle multiplicities with respect to these quantities obtained in inelastic collis…
Jun, 2026
Journal
High-energy hadronic collisions generate environments characterized by temperatures above 100 MeV (refs. 1,2), about 100,000 times hotter than the centre of the Sun. At present, it is therefore unclear how light (anti)nuclei with mass number A of a few units, such as the deuteron, 3He or 4He, each bound by only a few MeV, can emerge from these collisions3,4. Here, the ALIC…
Jun, 2026
Journal
Ultrarelativistic heavy-ion collisions produce a state of hot and dense strongly interacting QCD matter called quark-gluon plasma (QGP). On an event-by-event basis, the volume of the QGP in ultracentral collisions is mostly constant, while its total entropy can vary significantly due to quantum fluctuations, leading to variations in the temperature of the system. Exploitin…
Jun, 2026
Journal
The ALICE Collaboration reports measurements of the large relative transverse momentum (𝑘𝑇) component of jet substructure in 𝑝𝑝 and Pb-Pb collisions at center-of-mass energy per nucleon pair √𝑠NN=5.02 TeV. Enhancement in the yield of such large-𝑘T emissions in head-on Pb-Pb collisions is predicted to arise from partonic scattering with quasiparticles of the quark-gluon p…
Jun, 2026
Journal
The transverse momentum spectra and integrated yields of anti-hyperons( ±) have been measured in pp and p−Pb collisions at√ sNN = 5.02TeVwiththeALICEexperiment. Measurements are performed via the newly accessed decay channel ±→ nπ±. A new method of antineutron reconstruction with the PHOS electromagnetic spectrometer is developed and applied to this analysis. The pT spectr…
Jun, 2026
Journal
The first results of K*(892)± production at midrapidity (|y|