Zobrazeno 1 - 10
of 22
pro vyhledávání: '"G. Köbschall"'
Publikováno v:
Nuclear Physics A. 475:761-773
Double differential cross sections of the reaction 14 N(e, π + ) have been measured at E 0 = 173.5 MeV for pion production angles of Θ π = 25° and 100° which correspond to momentum transfer values of q 2 = 0.22 and 1.14 fm 2 . Using the virtual
Publikováno v:
Nuclear Physics A. 412:294-300
Double differential cross sections for electron-3He scattering leading to continuum states were measured between break-up threshold and the region of quasi-free interaction in a momentum transfer range of 1 fm−2 1.5 fm−1.
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 243:33-36
A liquid hydrogen target system is described that is suitable for pion production experiments as well as for electron scattering with high energy resolution. Details of design and construction are given. The dependence of the target thickness on the
Publikováno v:
Nuclear Physics A. 436:688-698
The cross sections for elastic electron scattering from 3 He and 4 He were measured for the momentum transfer range from 0.45–2.0 fm −1 . The cross sections were separated into their longitudinal (charge) and transverse (magnetic) contributions u
Autor:
K. Röhrich, V.H. Walther, L. Tiator, Ch. Reifferscheid, Louis E. Wright, G. Köbschall, K. Weinand, C. Schmitt
Publikováno v:
Physics Letters B. 153:203-207
The reaction 14 N (γ, π + ) 14 C g.s. has been measured at a photon energy of 173 MeV and various pion angles at the Mainz microtron via the (e, π ) reaction. Single differential cross sections were extracted using the virtual-photon theory. We ha
Autor:
Achim Richter, L. Tiator, K. Röhrich, B. Alberti, V.H. Walther, Ch. Scmitt, A. Liesenfeld, G. Köbschall, D. Eyl
Publikováno v:
Nuclear Physics A. 485:580-588
An angular distribution of negative pions produced on 15N, leading to the ground state of15O, has been measured via the (e, π−)-reaction at Ee ≈ 170 MeV. Using virtual photon theory, single-differential cross sections are extracted from the meas
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 237:523-534
A magnetic spectrometer is described, which is suitable for low energy pion identification ( T π = (5–50) MeV). The special features of the spectrometer are a very short distance between target and detector together with reasonable solid angle. Th
Publikováno v:
Nuclear Physics A. 405:648-652
The cross sections of inelastic electron scattering on 4 He leading to the quasi-bound state (0 + , e = 20.1 MeV) were measured in the momentum transfer range 0.8 fm −2 q 2 −2 . We found it to be a pure longitudinal transition and give the form f
Autor:
Achim Richter, D. Eyl, A. Liesenfeld, C. Schmitt, K. Röhrich, B. Alberti, G. Köbschall, V.H. Walther
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 274:249-252
A silicon strip detector is described that is suitable for low energy pion identification ( T π = 9–25 MeV) in electropion-production experiments. The special features are high energy resolution and high background suppression capability. Details
Autor:
H. Jansen, C. Schmitt, G. Köbschall, Hartmuth Arenhövel, K. Röhrich, M. Kobayashi, B. Alberti, V.H. Walther, K. Weinand
Publikováno v:
Nuclear Physics A. 466:612-622
Electroproduction of positive pions from the deuteron near the threshold has been used to isolate the 1 S 0 state of the residual nn-system. This unbound state has an energy width of about 1 MeV. Cross sections were measured at incident electron ener