
Joachim Hansen
SMARTHEP PhD student ESR10

I work with experimental high energy physics and I am a part of the ALICE collaboration at CERN.
Publications
Displaying of publications. Sorted by year, then title.
Multiplicity dependence of K*(892) ± production in pp collisions at s=13 TeV
I.J. Abualrob, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2026) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 874
Journal articlePerspective on machine learning for real-time analysis at the Large Hadron Collider experiments ALICE, ATLAS, CMS and LHCb
S. Astrand, L. Boggia, M. Borsato, L. Bozianu, C. E. Cocha Toapaxi, et al.
(2026) Machine Learning: Science and Technology, 7
Journal articleΣ¯± production in pp and p-Pb collisions at sNN=5.02 TeV with ALICE
I.J. Abualrob, P. Christiansen, J. Hansen, K.E. Iversen, R. Nepeivoda, et al.
(2026) European Physical Journal C, 86
Journal articleMultiplicity dependence of f0(980) production in pp collisions at s= 13 TeV
I.J. Abualrob, P. Christiansen, J. Hansen, K.E. Iversen, R. Nepeivoda, et al.
(2026) European Physical Journal C, 86
Journal articleΣ+ production in pp collisions at s=13 TeV
I.J. Abualrob, P. Christiansen, J. Hansen, K.E. Iversen, R. Nepeivoda, et al.
(2026) European Physical Journal C, 86
Journal articleStudy of the interaction between Ξ baryons and light mesons via femtoscopy at the LHC
I.J. Abualrob, P. Christiansen, J. Hansen, K.E. Iversen, R. Nepeivoda, et al.
(2026) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 874
Journal articleMeasurement of the p–Σ+ correlation function in pp collisions at s=13 TeV
I.J. Abualrob, T. Christiansen, J. Hansen, K.E. Iversen, R. Nepeivoda, et al.
(2026) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 874
Journal articleExclusive photoproduction of excited ρ mesons decaying to four pions in ultraperipheral Pb–Pb collisions at √sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2026) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 872
Journal articleLong-Range Transverse-Momentum Correlations and Radial Flow in Pb-Pb Collisions at the LHC
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2026) Physical Review Letters, 136
Journal articleMultimuons in cosmic-ray events as seen in ALICE at the LHC
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Journal of Cosmology and Astroparticle Physics, 2025
Journal articleMeasurement of the inclusive isolated-photon production cross section in pp and Pb–Pb collisions at sNN=5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) European Physical Journal C, 85
Journal articleFirst measurement of Ds1(1+)(2536)+ and D*s2 (2+)(2573)+ production in proton-proton collisions at √S=13S2Te V at the LHC
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physical Review D, 111
Journal articleSearch for Quasiparticle Scattering in the Quark-Gluon Plasma with Jet Splittings in pp and Pb-Pb Collisions at sNN =5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physical Review Letters, 135
Journal articleStudying charm hadronisation into baryons with azimuthal correlations of Λc+ with charged particles in pp collisions at s=13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 868
Journal articleDirect-photon production in inelastic and high-multiplicity proton–proton collisions at s= 13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 868
Journal articleProbing Strangeness Hadronization with Event-by-Event Production of Multistrange Hadrons
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physical Review Letters, 134
Journal articleFirst Measurement of A = 4 Hypernuclei and Antihypernuclei at the LHC
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physical Review Letters, 134
Journal articleProton emission in ultraperipheral Pb-Pb collisions at sNN =5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physical Review C, 111
Journal articleMeasurement of f1(1285) production in pp collisions at s = 13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 866
Journal articleRapidity dependence of antideuteron coalescence in pp collisions at s=13 TeV with ALICE
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 860
Journal articleMeasurement of HΛ3 production in Pb–Pb collisions at sNN=5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 860
Journal articleMeasurement of the inclusive isolated-photon production cross section in pp collisions at √s = 13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) European Physical Journal C, 85
Journal articleMedium-induced modification of groomed and ungroomed jet mass and angularities in Pb–Pb collisions at sNN=5.02 [Figure presented]
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 864
Journal articleParticle production as a function of charged-particle flattenicity in pp collisions at s =13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physical Review D, 111
Journal articleInvestigating Λ baryon production in p -Pb collisions in jets and the underlying event using angular correlations
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physical Review C, 111
Journal articleD0-meson-tagged jet axes difference in proton-proton collisions at √s = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physical Review D, 112
Journal articleMeasurement of isolated prompt photon production in pp and p–Pb collisions at the LHC
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) European Physical Journal C, 85
Journal articleLight neutral-meson production in pp collisions at √s = 13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Journal of High Energy Physics, 2025
Journal articleFemtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 871
Journal articleCoherent J/ψ photoproduction at midrapidity in Pb−Pb collisions at √sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 871
Journal articleCharged-particle multiplicity distributions over a wide pseudorapidity range in p–Pb collisions at √sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) European Physical Journal C, 85
Journal articleFirst measurement of symmetric cumulants of hexagonal flow harmonics in Pb-Pb collisions at √sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physical Review C, 112
Journal articleJ/ψ-hadron correlations at midrapidity in pp collisions at √s = 13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Journal of High Energy Physics, 2025
Journal articleMeasurement of ω meson production in pp collisions at √s = 13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Journal of High Energy Physics, 2025
Journal articleMeasurement of correlations among net-charge, net-proton, and net-kaon multiplicity distributions in Pb-Pb collisions at √sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Journal of High Energy Physics, 2025
Journal articleStudy of ⟨pT ⟩ and its higher moments, and extraction of the speed of sound in Pb-Pb collisions with ALICE
I.J. Abualrob, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Journal of High Energy Physics, 2025
Journal articleObservation of deuteron and antideuteron formation from resonance-decay nucleons
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Nature, 648 p.306-311
Journal articleMultiplicity-dependent jet modification from di-hadron correlations in pp collisions at √s = 13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Journal of High Energy Physics, 2025
Journal articleFirst measurement of D*+ vector meson spin alignment in Pb–Pb collisions at √sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Journal of High Energy Physics, 2025
Journal articleMultiplicity dependence of Ξ+c and Ξ0c production in pp collisions at √s=13 TeV
I.J. Abualrob, P. Christiansen, J. Hansen, K.E. Iversen, R. Nepeivoda, et al.
(2025) Journal of High Energy Physics, 2025 p.38-38
Journal articleDielectron production in central Pb-Pb collisions at √sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) Physical Review C, 112
Journal articleCommon femtoscopic hadron-emission source in pp collisions at the LHC
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2025) European Physical Journal C, 85
Journal articleMultiplicity and event-scale dependent flow and jet fragmentation in pp collisions at s = 13 TeV and in p–Pb collisions at sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleMeasurement of beauty production via non-prompt charm hadrons in p–Pb collisions at sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleCharm fragmentation fractions and cc¯ cross section in p–Pb collisions at sNN=5.02TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) European Physical Journal C, 84
Journal articlePhotoproduction of K+K- Pairs in Ultraperipheral Collisions
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review Letters, 132
Journal articleFemtoscopic correlations of identical charged pions and kaons in pp collisions at s =13 TeV with event-shape selection
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review C, 109
Journal articleMeasurements of inclusive J/ψ production at midrapidity and forward rapidity in Pb–Pb collisions at sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 849
Journal articleCharged-particle production as a function of the relative transverse activity classifier in pp, p–Pb, and Pb–Pb collisions at the LHC
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleModification of charged-particle jets in event-shape engineered Pb–Pb collisions at sNN=5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 851
Journal articleSkewness and kurtosis of mean transverse momentum fluctuations at the LHC energies
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 850
Journal articleMeasurement of the low-energy antitriton inelastic cross section
S. Acharya, S. Basu, P. Christiansen, J. Hansen, N Zurlo
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 848
Journal articleObservation of Medium-Induced Yield Enhancement and Acoplanarity Broadening of Low- p T Jets from Measurements in pp and Central Pb-Pb Collisions at sNN =5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review Letters, 133
Journal articleInvestigating the composition of the K0⁎(700) state with π±KS0 correlations at the LHC
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 856
Journal articleMeasurement of the radius dependence of charged-particle jet suppression in Pb–Pb collisions at sNN=5.02TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, O. Matonoha, et al.
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 849
Journal articleSystematic study of flow vector fluctuations in sNN =5.02 TeV Pb-Pb collisions
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review C, 109
Journal articleK*(892)± resonance production in Pb-Pb collisions at sNN =5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review C, 109
Journal articleFirst Measurement of the |t | Dependence of Incoherent J/ψ Photonuclear Production
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review Letters, 132
Journal articleEmergence of Long-Range Angular Correlations in Low-Multiplicity Proton-Proton Collisions
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review Letters, 132
Journal articleMeasurement of (anti)alpha production in central Pb–Pb collisions at sNN=5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 858
Journal articleMeasurement of the impact-parameter dependent azimuthal anisotropy in coherent ρ0 photoproduction in Pb–Pb collisions at sNN=5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 858
Journal articleMeasurement of ω c0 baryon production and branching-fraction ratio BR (ω c0 → ω- e+ν e)/BR (ω c0 → ω-π+) in pp collisions at s =13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review D, 110
Journal articleMeasurements of jet quenching using semi-inclusive hadron+jet distributions in pp and central Pb-Pb collisions at sNN =5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review C, 110
Journal articleInvestigating strangeness enhancement with multiplicity in pp collisions using angular correlations
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleStudying the interaction between charm and light-flavor mesons
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review D, 110
Journal articleStudying strangeness and baryon production mechanisms through angular correlations between charged Ξ baryons and identified hadrons in pp collisions at s = 13 TeV
S. Acharya, J. Adolfsson, S. Basu, P. Christiansen, J. Hansen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleMeasurement of the production and elliptic flow of (anti)nuclei in Xe-Xe collisions at sNN =5.44 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review C, 110
Journal articlePrompt and non-prompt J/ψ production at midrapidity in Pb–Pb collisions at √sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleMeasurements of long-range two-particle correlation over a wide pseudorapidity range in p–Pb collisions at sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleMeasurement of beauty-quark production in pp collisions at s = 13 TeV via non-prompt D mesons
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleExploring the Strong Interaction of Three-Body Systems at the LHC
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review X, 14
Journal articleObservation of abnormal suppression of f0(980) production in p–Pb collisions at sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 853
Journal articleLight-flavor particle production in high-multiplicity pp collisions at s= 13 TeV as a function of transverse spherocity
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleMeasurement of inclusive charged-particle jet production in pp and p-Pb collisions at (Formula presented.)
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleInvestigating strangeness enhancement in jet and medium via (Formula presented) production in (Formula presented)-Pb collisions at (Formula presented)
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review C, 110
Journal articleMultiplicity dependence of charged-particle intra-jet properties in pp collisions at √s = 13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) European Physical Journal C, 84
Journal articleMultiplicity-dependent production of Σ(1385)± and Ξ(1530)0 in pp collisions at s = 13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleSearch for jet quenching effects in high-multiplicity pp collisions at (Formula presented.) TeV via di-jet acoplanarity
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Journal of High Energy Physics, 2024
Journal articleMeasurements of Chemical Potentials in Pb-Pb Collisions at sNN =5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2024) Physical Review Letters, 133
Journal articleData-driven precision determination of the material budget in ALICE
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2023) Journal of Instrumentation, 18
Journal articleExclusive and dissociative J/ψ photoproduction, and exclusive dimuon production, in p-Pb collisions at sNN =8.16 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2023) Physical Review D, 108
Journal articleInclusive and multiplicity dependent production of electrons from heavy-flavour hadron decays in pp and p-Pb collisions
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2023) Journal of High Energy Physics, 2023
Journal articleEnergy dependence of coherent photonuclear production of J/ψ mesons in ultra-peripheral Pb-Pb collisions at √sNN = 5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2023) Journal of High Energy Physics, 2023
Journal articleMeasurement of inclusive J/ψ pair production cross section in pp collisions at s =13 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2023) Physical Review C, 108
Journal articleMeasurement of non-prompt D -meson elliptic flow in Pb–Pb collisions at √sNN=5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, N Zurlo
(2023) European Physical Journal C, 83
Journal articleStudy of the p–p–K + and p–p–K - dynamics using the femtoscopy technique
S. Acharya, S. Basu, P. Christiansen, J. Hansen, N Zurlo
(2023) European Physical Journal A, 59
Journal articleAccessing the strong interaction between Λ baryons and charged kaons with the femtoscopy technique at the LHC
S. Acharya, S. Basu, P. Christiansen, J. Hansen, K.E. Iversen, et al.
(2023) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 845
Journal articleInclusive photon production at forward rapidities in pp and p–Pb collisions at √sNN=5.02 TeV
S. Acharya, S. Basu, P. Christiansen, J. Hansen, O. Matonoha, et al.
(2023) European Physical Journal C, 83
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