Publications

Showing 237 results for Author: Norbert Novitzky

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Jul, 2026

Journal

Measurements at forward rapidity of elliptic flow of charged hadrons and open-heavy-flavor muons in Au+Au collisions at √𝑠𝑁⁢𝑁=200GeV

We present the first forward-rapidity measurements of elliptic anisotropy of open-heavy-flavor muons at the Relativistic Heavy Ion Collider. The measurements are based on data samples of Au+Au collisions at √𝑠𝑁⁢𝑁=200GeV collected by the PHENIX experiment in 2014 and 2016 with integrated luminosity of 14.5nb−1. The measurements are performed in the pseudorapidity range 1.2
Jun, 2026

Journal

Long-Range Transverse-Momentum Correlations and Radial Flow in Pb-Pb Collisions at the LHC

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

Observation of the Ω⁡(2012) baryon at the LHC

A signal consistent with the Ω⁡(2012) baryon has been observed with a significance of 15⁢𝜎 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

System size and energy dependence of the mean transverse momentum fluctuations at the LHC

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

Transverse single-spin asymmetry of forward η mesons in p↑ + p collisions root s = 200 GeV

Utilizing the 2012 transversely polarized proton data from the Relativistic Heavy Ion Collider at Brookhaven National Laboratory, the forward 𝜂-meson transverse single-spin asymmetry (𝐴𝑁) was measured for 𝑝↑+𝑝 collisions at √𝑠 =200 GeV as a function of Feynman-x (𝑥𝐹) for 0.2
Jun, 2026

Journal

Observation of partonic flow in proton—proton and proton—nucleus collisions

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

Studying charm hadronisation into baryons with azimuthal correlations of Lambda_c^+ with charged particles in pp collisions at root s = 13 TeV

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

Multiplicity dependent 𝐽/𝜓 and 𝜓⁡(2⁢𝑆) production at forward and backward rapidity in 𝑝 +𝑝 collisions at √𝑠 =200 GeV

Recent measurements of 𝐽/𝜓 production as a function of event charged-particle multiplicity at the collision energies of both the Large Hadron Collider (LHC) and the Relativistic Heavy Ion Collider (RHIC) show enhanced 𝐽/𝜓 production yields with increasing multiplicity. One potential explanation for this type of dependence is multiparton interactions (MPI). We present the f…
Jun, 2026

Journal

Space-time evolution of particle emission in p–Pb collisions at √sNN = 5.02 TeV with 3D kaon femtoscopy

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

Multiplicity-dependent inclusive J/ψ production at forward rapidity in pp collisions at √ s =13TeV

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

Observation of deuteron and antideuteron formation from resonance-decay nucleons

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

Study of ⟨pT⟩ and its higher moments, and extraction of the speed of sound in Pb-Pb collisions with ALICE

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…

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Publications

Measurements at forward rapidity of elliptic flow of charged hadrons and open-heavy-flavor muons in Au+Au collisions at √𝑠𝑁⁢𝑁=200GeV

Long-Range Transverse-Momentum Correlations and Radial Flow in Pb-Pb Collisions at the LHC

Observation of the Ω⁡(2012) baryon at the LHC

System size and energy dependence of the mean transverse momentum fluctuations at the LHC

Transverse single-spin asymmetry of forward η mesons in p↑ + p collisions root s = 200 GeV

Observation of partonic flow in proton—proton and proton—nucleus collisions

Studying charm hadronisation into baryons with azimuthal correlations of Lambda_c^+ with charged particles in pp collisions at root s = 13 TeV

Multiplicity dependent 𝐽/𝜓 and 𝜓⁡(2⁢𝑆) production at forward and backward rapidity in 𝑝 +𝑝 collisions at √𝑠 =200 GeV

Space-time evolution of particle emission in p–Pb collisions at √sNN = 5.02 TeV with 3D kaon femtoscopy

Multiplicity-dependent inclusive J/ψ production at forward rapidity in pp collisions at √ s =13TeV

Observation of deuteron and antideuteron formation from resonance-decay nucleons

Study of ⟨pT⟩ and its higher moments, and extraction of the speed of sound in Pb-Pb collisions with ALICE