Autor: |
Hans Wilschut, A.Y. Korchin, J. G. Messchendorp, R.S. Simon, Herbert Löhner, R.W. Ostendorf, H. Huisman, M. Hoefman, Olaf Scholten, van Marc-Jan Goethem, Mohsen Harakeh, Nasser Kalantar-Nayestanaki, M. Volkerts, J. C. S. Bacelar, S. Schadmand |
Rok vydání: |
2000 |
Předmět: |
|
Zdroj: |
Physics Letters B. 481:171-176 |
ISSN: |
0370-2693 |
Popis: |
Exclusive differential cross sections of virtual-photon radiative proton capture in pd→ 3 He +e + e − at a proton energy of 190 MeV have been measured for the first time. The leptonic-angle dependence of the measured cross section is exploited in order to determine the electromagnetic response functions in the time-like region. The data are compared to a relativistic gauge-invariant impulse approximation and a Faddeev calculation. Differences between theoretical predictions and data are discussed in terms of enhanced magnetic radiation possibly originating from virtual Δ excitations. |
Databáze: |
OpenAIRE |
Externí odkaz: |
|