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JWST and Ground-based Observations of the Type Iax Supernovae SN 2024pxl and SN 2024vjm: Evidence for Weak Deflagration Explosions
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GLAD-TPC Software
No full textThe GLAD-TPC (Time Projection Chamber) detector, also known as HYDRA, is part of the R3B (Reactions with Relativistic Radioactive Beams) experimental setup at the GSI/FAIR research center (Facility for Antiproton and Ion Research). The GLAD-TPC software allows for Monte Carlo simulations and experimental data analysis, enabling seamless integration with the data analysis workflows of other R3B detectors. This state-of-the-art tracking detector is crucial to the R3B research program, supporting detailed investigations into light hypernuclei and the production background of baryonic resonances. The GLAD-TPC software is a source distribution with recurring releases for MacOS and Linux
Disentangling Initial-State and Evolution Effects in Heavy-Ion Collisions Using EPOS and PHSD
No full textInvestigating Λ baryon production in p-Pb collisions in jets and the underlying event using angular correlations
No full textFirst measurements of hadron-Λ (h-Λ) azimuthal angular correlations in p-Pb collisions at = 5.02 TeV using the ALICE detector at the Large Hadron Collider are presented. These correlations are used to separate the production of associated Λ baryons into three different kinematic regions, namely those produced in the direction of the trigger particle (near side), those produced in the opposite direction (away side), and those whose production is uncorrelated with the jet axis (underlying event). The per-trigger associated Λ yields in these regions are extracted, along with the near- and away-side azimuthal peak widths, and the results are studied as a function of associated particle and event multiplicity. Comparisons with the dpmjet event generator and previous measurements of the ϕ(1020) meson are also made. The final results indicate that strangeness production in the highest multiplicity p-Pb collisions is enhanced relative to low multiplicity collisions in both the jetlike regions and the underlying event. The production of Λ relative to charged hadrons is also enhanced in the underlying event when compared to the jetlike regions. Additionally, the results hint that strange quark production in the away-side of the jet is modified by soft interactions with the underlying event
Indirect methods with transfer reactions: The Trojan Horse method and the Asymptotic Normalization Coefficient
No full textDevelopment and performance assessment of the BGO calorimeter module for the FOOT experiment
No full textSystem size and energy dependence of the mean transverse momentum fluctuations at the LHC
No full textEvent-by-event fluctuations of the event-wise mean transverse momentum, of charged particles produced in proton--proton (pp) collisions at = 5.02 TeV, Xe--Xe collisions at = 5.44 TeV, and Pb--Pb collisions at = 5.02 TeV are studied using the ALICE detector based on the integral correlator. The correlator strength is found to decrease monotonically with increasing produced charged-particle multiplicity measured at mid-rapidity in all three systems. In Xe--Xe and Pb--Pb collisions, the multiplicity dependence of the correlator deviates significantly from a simple power-law scaling as well as from the predictions of the HIJING and AMPT models. The observed deviation from power-law scaling is expected from transverse radial flow in semicentral to central Xe--Xe and Pb--Pb collisions. In pp collisions, the correlation strength is also studied by classifying the events based on the transverse spherocity, , of the particle production at midrapidity, used as a proxy for the presence of a pronounced back-to-back jet topology. Low-spherocity (jetty) events feature a larger correlation strength than those with high spherocity (isotropic). The strength and multiplicity dependence of jetty and isotropic events are well reproduced by calculations with the PYTHIA 8 and EPOS LHC models