Photoemission of protons from He-4 in the Delta-resonance region
Zeitschrift für Physik : A. Bd. 355. H. 1. Berlin u.a.: Springer 1996 S. 169 - 177
Erscheinungsjahr: 1996
ISBN/ISSN: 0939-7922
Publikationstyp: Zeitschriftenaufsatz
Sprache: Englisch
Doi/URN: 10.1007/BF02769681
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Inhaltszusammenfassung
High resolution proton energy spectra from the He-4(gamma,p) reaction have been measured with tagged photons in the range E(gamma) = 130 - 525 MeV using the large Mainz NaI(Tl) spectrometer at Theta(p)(lab) = 37.1 degrees. Three separate reaction channels were identified, viz. He-4(gamma,p)t two-body breakup, He-4 photodisintegration via two-nucleon photon absorption processes and the quasifree pion production channel. Differential cross sections are presented for each of these channels as a ...High resolution proton energy spectra from the He-4(gamma,p) reaction have been measured with tagged photons in the range E(gamma) = 130 - 525 MeV using the large Mainz NaI(Tl) spectrometer at Theta(p)(lab) = 37.1 degrees. Three separate reaction channels were identified, viz. He-4(gamma,p)t two-body breakup, He-4 photodisintegration via two-nucleon photon absorption processes and the quasifree pion production channel. Differential cross sections are presented for each of these channels as a function of photon energy. The sum of the two-nucleon photon absorption and the quasifree pion production differential cross sections, in the CM system, resembles that of the corresponding free-nucleon differential cross section when Fermi motion is taken into account.» weiterlesen» einklappen
Autoren
Klassifikation
DFG Fachgebiet:
Teilchen, Kerne und Felder
DDC Sachgruppe:
Physik
