Pion induced reactions

• Simulations of pion beam contamination ermias_report_contam.pdf:
• Studies of acceptance of START detector and target for pion beams start_acceptance:
• nstar_PS_HADES.pdf: Nstar2019_overview P. Salabura talk

Pion-proton elastic scattering and normalization (Izabella Ciepal, Witek Przygoda)

• status Nov. 2019 - completed
• Witek Przygoda presentation in CM2016 Paris Elastic scattering - witek_cm_2016_paris.pdf
• Update on elastic scattering and normalization by Iza isssued on 12.2017: presentation iza_update_elastic.pdf:
• iciepal_Nstar2019.pdf: nstar2019 pion production in pion induced reactions I. Ciepal talk

Two pion exclusive channels (Witek Przygoda, Izabella Ciepal, Andrey Sarantsev)

• Witek's report on methofd of carbon subtraction and channel separation: Two pion production channels - epjconf_meson2016_witek.pd.pdf - Meson2016_proceedings
• Two pion production - preliminary results on Partial Wave Analysis : ECT Trento 2017: salabura_ect_PION.pdf:
• iciepal_Nstar2019.pdf: nstar2019 pion production in pion induced reactions I. Ciepal talk
• status Nov 2019 - completed

Dielectron exclusive channel (Pablo Rodrigez, Federicco Scozzi)

• Status Nov2020 - completed
• Normalization, C subtraction and dielectron cocktail: Normalization and C subtraction - pion_dilep_normXS.pdf
• Federico's talk on e+e- in ECT 2017 Dielectron production - F_Scozzi_trento.pdf
• NSTAR2019_ramstein_v3.pdf: Nstar2019_dielectrons B.Ramstein talk

Dilepton analysis (July 2018)

• 3-dim acceptance and efficiency matrices calculated from GEANT4 simulations of electrons/positrons with flat momentum distributions (p<700 MeV /c).X=theta (deg) 45 bins (0.,90.) ;Y=phi (deg) 90 bins (0.,360.); Z=p (MeV /c) 40 bins (0.,800.);
• accep_matrix_ele.root: electron acceptance
• accep_matrix_pos.root: positron acceptance : geometrical acceptance matrices for electrons and positrons for true values of theta,phi,p .
• matrix_reco_ele_smearing_white.root: electron efficiency
• matrix_reco_pos_smearing_white.root: positron efficiency : contains efficiency matrices for electrons and positrons for the old RICH digitizer defined as N(p_rec,theta_rec,phi_rec)/ N(p_true, theta_true, phi_true)
• data and simulation (using PLUTO ρ and old RICH digitizer) events for extraction of Spin Density Matrix coefficients (Andrey's procedure)
• tar file with Andrey's code. Instructions can be found in the README.
• files with events generated with the GSI model (old version) in 4π N1440,N1520,N1520+N1440,N1520-N1440: original files and files with appropriate format to be used by the fitting code.

Two pion production in p+p collisions (Amel Belounnas)

• completed (Nov 2019)
• AmelB_NSTAR-2019.pdf

Hyperon (ΛK0, search for Λ(1520)), production in pp/pNb collisions at 3.5 GeV (Krzysztof Nowakowski)

• 2019Październik_final.pdf

Hyperon radiative decays (real photons), simulations and production in pp collisions at 3.5 GeV (Waleed Ahmed)

Σ(1385) production in p+p collisions @ 3.5 GeV (J. Kuboś, R. Lalik)

• 2019.11.08_GM_sim_pp35_s1385p_status.pdf

Simulations of Hyperon production in p+p @ 4.5 GeV with upgraded HADES detector (R. Lalik)

• 2019.10.17_GM_sim_pp45_status.pdf

Simulations of excited Hyperon radiative decays in p+p @ 4.5 GeV with upgraded HADES detector (K. Nowakowski)

• raport_na_2019.10.25-przekroje_do_symulacji.pdf prez_ver2_sim.pdf

Meetings

• see indico web page https://indico.gsi.de/category/313/