ISSN:
1434-601X
Keywords:
14.20.Pt
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A sample of “non-spectator” events in the pionless deuteron breakup at a 3.3 GeV/c momentum has been investigated by means of a 1 m HBC at the JINR, Dubna. The two-proton invariant mass spectrum in the charge exchange channel exhibits two enhancements for masses of 2,010 MeV/c2 and 2,160 MeV/c2. Theoretical calculations taking into account one-pion exchange diagrams and virtual pion absorption by the deuteron have been carried out. It has been shown that the enhancement atM pp=2,010 MeV/c2 can be explained if some kind of singularity near theN-N threshold is required. The observed maximum atM pp=2,160 MeV/c2 is caused mainly by intermediate Δ production and pion absorption on the deuteron.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01290040
Permalink