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SOFIA Software
No full textThe SOFIA software module, integrated into the R3BRoot framework, provides comprehensive tools for configuring and managing the SOFIA detector analysis, specifically designed for nuclear fission experiments performed with the GLAD superconducting spectrometer. Sofia-R3BRoot, built on the FairRoot framework, offers a robust software environment for conducting detailed Monte Carlo simulations and processing experimental data from R3B (Reactions with Relativistic Radioactive Beams) experiments. Key features include precise detector geometry modeling, particle tracking, event reconstruction, and physics analysis, all of which support the study of fission dynamics and nuclear structure in high-energy heavy-ion collision scenarios at the GSI-FAIR facility. The SOFIA software package is distributed as a source release, with regular updates available for MacOS and Linux
AsyEOS Software
No full textThe AsyEOS (Asymmetric-matter Equation-Of-State) directory within the R3BRoot framework provides the full detector definitions, Monte Carlo simulation tools, and digitization algorithms for the detectors used in the AsyEOS/R3B (Reactions with Relativistic Radioactive Beams) experimental campaign at the GSI/FAIR (Facility for Antiproton and Ion Research) facility. AsyEOS-R3BRoot, developed on top of the FairRoot framework, is a versatile toolkit for performing Monte Carlo simulations and processing experimental data to measure the flows of neutrons and light charged particles produced in Nucleus-Nucleus collisions in order to investigate symmetry energy of the nuclear equation of state at densities above the saturation one. The AsyEOS software package is a source distribution with recurring releases for macOS and Linux
Coherent J/ψ photoproduction at midrapidity in Pb−Pb collisions at = 5.02 TeV
No full textThe coherent J/ψ photoproduction cross section is measured for the first time at midrapidity in peripheral to semicentral Pb−Pb collisions at sNN=5.02 TeV. The centrality differential cross section dσ/dy is reported for the centrality range 40–90%, together with the doubly-differential cross section d2σ/dydpT, extracted in two peripheral centrality classes. The J/ψ mesons are reconstructed in the dielectron channel, in the rapidity interval |y| < 0.9 using the ALICE central barrel detectors. The J/ψ cross section at midrapidity is statistically compatible to the earlier ALICE measurement at forward rapidity and at the same centre-of-mass energy, and shows only a mild centrality dependence over the covered range. Several sets of theoretical calculations taking into account the hadronic overlap in the collisions but ignoring possible final-state effects from a hot expanding medium are found to give a fairly good description of the current measurements within uncertainties
First measurement of and production in proton-proton collisions at =13 TeV at the LHC
No full textThe production yields of the orbitally excited charm-strange mesons and were measured for the first time in proton-proton (pp) collisions at a center-of-mass energy of =13 TeV with the ALICE experiment at the LHC. The and mesons were measured at midrapidity (|y|<0.5) in minimum-bias and high-multiplicity pp collisions in the transverse-momentum interval 2 < < 24 GeV/ c. Their production yields relative to the ground-state yield were found to be compatible between minimum-bias and high-multiplicity collisions, as well as with previous measurements in p and collisions. The measured +/+ and / yield ratios are described by statistical hadronization models and can be used to tune the parameters governing the production of excited charm-strange hadrons in Monte Carlo generators, such as pythia 8
