Pion absorption at rest in He-4 (CROSBI ID 262107)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Daum, E. ; Vinzelberg, S. ; Gotta, D. ; H. Ullrich, Horst ; Backenstoss, G. ; Weber, P. ; Weyer ; H.J ; Furić, Miroslav ; Petković, Tomislav
engleski
Pion absorption at rest in He-4
The emission of nn-, np-, nd- and nt-pairs following π−-capture in gaseous 4He has been studied in a coincidence experiment. Quasifree 2N-absorption is the dominant absorption mechanism with a ratio of r = 4.0−1.5+0.8 for absorption on a nucleon pair with isospin I = 0 and I = 1. Also collinear processes involving more than two nucleons have been observed, including NN final-state interaction with small relative momenta as well as emission of deuterons and tritons. Upper limits are given for phase-space-distributed, i.e. non-collinear 3N- and nnd-emission.
negative pion absorption in 4He ; nn, np, nd, nt coincidences detected Two-N mechanism
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
589 (4)
1995.
553-584
objavljeno
0375-9474
1873-1554
10.1016/0375-9474(95)00068-C