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  • PACS. 13.60.Le Meson production – 25.20.Lj Photoproduction reactions  (2)
  • Gunshot wounds  (1)
  • PACS: 13.60.Le Meson production – 14.20.Gk Baryon resonances with S=0 – 14.40.Aq π,K and η mesons – 25.20.Lj Photoproduction reactions – 27.10.+h A 〈 5  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    International journal of legal medicine 108 (1996), S. 252-255 
    ISSN: 1437-1596
    Schlagwort(e): Ballistics ; Gunshot wounds ; Hunting accidents ; Unsafe hunting practices
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Rechtswissenschaft
    Notizen: Abstract Accidental hunting firearm injuries and fatalities (257 cases from 1961 to 1992) were evaluated in detail. Most persons responsible for the accident were more than 40 years old and experienced in hunting, and 26% of the gunshot wounds were fatal. In 77% of cases the victim was shot by another person and in 23% the wound was self-inflicted. The firearms/ammunition used were pellets from shotguns (63%), bullets from rifles (31%), shotgun slugs (3.5%) and bullets from handguns (2.5%). In 22% of all accidents from pellets severe eyeball injuries were involved, and 38% of the wounds were caused from a distance of 5 m or less, including all self-inflicted injuries. The most frequent factors responsible for the accident were: improper handling of the firearm (37%), failure to notice the victim (24.1%), covering the victim while swinging on the game (14.8%), ricocheting projectiles (13.6%), inadequate storage of the firearm (11.7%) and mistaking the victim for game (9.3%). In some cases more than one factor contributed to the accident. Defective firearm/ammunition, as the only non-human factor, was involved in only 1.6% of accidents. Some aspects of the prevention and the forensic investigation of hunting accidents are discussed.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1434-601X
    Schlagwort(e): PACS. 13.60.Le Meson production – 25.20.Lj Photoproduction reactions
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: The photoproduction of two neutral pions from the deuteron has been studied for incident photon energies from 200 MeV to 820 MeV with the TAPS spectrometer at MAMI (Mainz Microtron). The total cross-section was determined and used to deduce the cross-section from the neutron. Due to the good statistical quality of the data Dalitz plots for the three particles in the exit channel (π0π0 N) could be constructed. The invariant mass distributions derived from them are presented in this paper. They indicate that the important reaction mechanism in the second resonance region is a sequential decay pattern involving the population of the Δ(1232)-resonance as an intermediate state.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    ISSN: 1434-601X
    Schlagwort(e): PACS. 13.60.Le Meson production – 25.20.Lj Photoproduction reactions
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: Double neutral pion photoproduction from the proton has been measured at MAMI for photon energies between threshold and 820 MeV. The reaction was identified by an invariant mass and missing mass analysis. From threshold up to 370 MeV the total cross-section does not exceed 30 nb. For higher energies it shows a smooth rise until it reaches a maximum of about 10 μb at E γ = 740 MeV. Dalitz plots of m 2(π0π0) versus m 2(p,π0) for seven bins of incident photon energy have been analysed. For E γ 〉 610 MeV, a strong contribution of a sequential decay is observed with the Δ(1232)-resonance as intermediate state. A comparison to model calculations shows that these sequential decays presumably originate from the D 13(1520) and also the P 11(1440)-resonance.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    ISSN: 1434-601X
    Schlagwort(e): PACS: 13.60.Le Meson production – 14.20.Gk Baryon resonances with S=0 – 14.40.Aq π,K and η mesons – 25.20.Lj Photoproduction reactions – 27.10.+h A 〈 5
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: Photoproduction of η mesons from 4He has been measured for the first time. The experiment was performed at the Mainz Microtron (MAMI) using the TAPS photon spectrometer and the Glasgow/Mainz tagged photon facility. η mesons were identified in coincidence with recoil nucleons. Total and differential cross sections are presented in the photon energy range between threshold and 818 MeV. The exclusive data are used to determine the ratio of the elementary production cross sections on bound neutrons and protons, σn/σp= 0.68 ± 0.02 ± 0.09. In addition, upper limits for the total coherent cross section have been derived.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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