Pregled bibliografske jedinice broj: 991214
Pion absorption at rest in He-4
Pion absorption at rest in He-4 // Nuclear physics. A, 589 (1995), 4; 553-584 doi:10.1016/0375-9474(95)00068-C (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 991214 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Pion absorption at rest in He-4
Autori
Daum, E. ; Vinzelberg, S. ; Gotta, D. ; H. Ullrich, Horst ; Backenstoss, G. ; Weber, P. ; Weyer ; H.J ; Furić, Miroslav ; Petković, Tomislav
Izvornik
Nuclear physics. A (0375-9474) 589
(1995), 4;
553-584
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
negative pion absorption in 4He ; nn, np, nd, nt coincidences detected Two-N mechanism
Sažetak
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.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Ustanove:
Fakultet elektrotehnike i računarstva, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
