A. Kugler
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View article: Hadron production and propagation in pion-induced reactions on nuclei
Hadron production and propagation in pion-induced reactions on nuclei Open
Hadron production ( $$\pi ^\pm $$ , proton, $$\Lambda $$ , $$K_S^0$$ , $$K^\pm $$ ) in $$\pi ^- + \textrm{C}$$ and $$\pi ^- + \textrm{W}$$ collisions is investigated at an incident pion beam momentum of $$1.7~\…
View article: Inclusive e$^+$e$^-$ production in collisions of pions with protons and nuclei in the second resonance region of baryons
Inclusive e$^+$e$^-$ production in collisions of pions with protons and nuclei in the second resonance region of baryons Open
Inclusive e$^+$e$^-$ production has been studied with HADES in $π^-$ + p, $π^-$ + C and $π^- + \mathrm{CH}_2$ reactions, using the GSI pion beam at $\sqrt{s_{πp}}$ = 1.49 GeV. Invariant mass and transverse momentum distributions have been …
View article: Hadron Production and Propagation in Pion-Induced Reactions on Nuclei
Hadron Production and Propagation in Pion-Induced Reactions on Nuclei Open
Hadron production ($π^\pm$, proton, $Λ$, $K_S^0$, $K^\pm$) in $π^- + \mathrm{C}$ and $π^- + \mathrm{W}$ collisions is investigated at an incident pion beam momentum of $1.7~\mathrm{GeV}/c$. This comprehensive set of data measured with HADE…
View article: First measurement of massive virtual photon emission from N* baryon resonances
First measurement of massive virtual photon emission from N* baryon resonances Open
First information on the time-like electromagnetic structure of baryons in the second resonance region has been obtained from measurements of dielectron (e+ e-) invariant-mass and angular distributions in the quasi-free reaction $π-$ p $\r…
View article: New results on light nuclei, hyperons and hypernuclei from HADES (HADES collaboration)
New results on light nuclei, hyperons and hypernuclei from HADES (HADES collaboration) Open
In March 2019 the HADES experiment recorded 14 billion Ag+Ag collisions at √ s NN = 2.55 GeV as a part of the FAIR phase-0 physics program. In this contribution, we present and investigate our capabilities to reconstruct and analyze weakly…
View article: Performance study and calibration strategy of the HADES scintillator TOF Wall with fast digital readout
Performance study and calibration strategy of the HADES scintillator TOF Wall with fast digital readout Open
We present in this work the calibration procedure and a performance study of long scintillator bars used for the time-of-flight (TOF) measurement in the HADES experiment. The digital front-end electronics installed at the TOF detector requ…
View article: Reconstruction of γγ mass spectra in Ag+Ag collisions at 1.23 and 1.58 AGeV beam energies with ECal detector of the HADES experiment
Reconstruction of γγ mass spectra in Ag+Ag collisions at 1.23 and 1.58 AGeV beam energies with ECal detector of the HADES experiment Open
HADES is a high acceptance di-electron spectrometer operating at SIS18, GSI, Germany aimed at study of hadron-proton, hadron-nucleus and nucleus-nucleus collisions at 1-4 AGeV beam energies. The new electromagnetic calorimeter (ECal) was a…
View article: Calibration of the electromagnetic calorimeter ECal of the HADES experiment
Calibration of the electromagnetic calorimeter ECal of the HADES experiment Open
HADES is a large acceptance spectrometer operating at SIS18, GSI, Germany. It is aimed at exploration of QCD phase diagram at the ion beam energies of 1-2 AGeV in the region of high baryonic densities. The new segmented electromagnetic cal…
View article: Commissioning of the electromagnetic calorimeter ECAL of the HADES experiment
Commissioning of the electromagnetic calorimeter ECAL of the HADES experiment Open
HADES (High Acceptance Di-Electron Spectrometer) is located at the GSI (Helmholtzzentrum für Schwerionenforschung) Darmstadt. It is an experiment focused on the study of the hot and dense nuclear matter mainly via the detection of the di-l…
View article: Characterisation of SiPM radiation hardness for application in hadron calorimeters at FAIR, CERN and NICA
Characterisation of SiPM radiation hardness for application in hadron calorimeters at FAIR, CERN and NICA Open
Silicon PhotoMultipliers (SiPM) are an excellent choice for the scintillator light readout at hadron calorimeters due to their insensitivity to magnetic fields, low operating voltages, low cost, compactness and mechanical endurance. They a…
View article: Strong Absorption of Hadrons with Hidden and Open Strangeness in Nuclear Matter
Strong Absorption of Hadrons with Hidden and Open Strangeness in Nuclear Matter Open
We present the first observation of K^{-} and ϕ absorption within nuclear matter by means of π^{-}-induced reactions on C and W targets at an incident beam momentum of 1.7 GeV/c studied with HADES at SIS18/GSI. The double ratio (K^{-}/K^{+…
View article: The very forward hadron calorimeter PSD for the future CBM@FAIR experiment
The very forward hadron calorimeter PSD for the future CBM@FAIR experiment Open
The Projectile Spectator Detector (PSD) of the CBM experiment at the future FAIR facility is a compensating lead-scintillator calorimeter designed to measure the energy distribution of the forward going projectile nucleons and nuclei fragm…
View article: "Table 1 - Multiplicities and effective Temperatures" of "Sub-threshold production of K$^{0}_{s}$ mesons and ${\Lambda}$ hyperons in Au(1.23A GeV)$+$Au"
"Table 1 - Multiplicities and effective Temperatures" of "Sub-threshold production of K$^{0}_{s}$ mesons and ${\Lambda}$ hyperons in Au(1.23A GeV)$+$Au" Open
$K^{0}_{S}$ and $\Lambda$ multiplicities in full phase space and inverse slopes at mid-rapidity $T_{Eff}$ for a given centrality.
View article: Time-Like Baryon Transitions studies with HADES
Time-Like Baryon Transitions studies with HADES Open
The HADES collaboration uses the e + e − production as a probe of the resonance matter produced in collisions at incident energies of 1-3.5 GeV/nucleon at GSI. Elementary reactions provide useful references for these studies and give infor…
View article: Tests of the Electromagnetic Calorimeter for HADES Experiment at GSI
Tests of the Electromagnetic Calorimeter for HADES Experiment at GSI Open
Measurements of mass spectra of dilepton pairs in the HADES experiment in the energy domain of SIS18 and SIS100 (FAIR, Darmstadt, Germany) are very important for studing the excitation function of the virtual photon radiation from dense nu…
View article: Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV
Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV Open
Baryon resonance production in proton-proton collisions at a kinetic beam energy of 1.25 GeV is investigated. The multi-differential data were measured by the HADES Collaboration. Exclusive channels with one pion in the final state ($np\pi…
View article: Inclusive <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi mathvariant="normal">Λ</mml:mi></mml:math> production in proton-proton collisions at 3.5 GeV
Inclusive production in proton-proton collisions at 3.5 GeV Open
The inclusive production of Λ hyperons in proton-proton collisions at s=3.18GeV was measured with HADES at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt. The experimental data are compared to a data-based model for individ…