Near threshold {Lambda} and {Sigma}{sup 0} production in pp collisions
Conference
·
OSTI ID:784260
The reactions pp {yields} p{Lambda}K{sup +} and pp {yields} p{Sigma}{sup 0}K{sup +} are studied near their thresholds. The strangeness production process is described by the {pi}- and K exchange mechanisms. Effects from the final-state interaction in the hyperon-nucleon system are taken into account rigorously. It is shown that the experimentally observed strong suppression of {Sigma}{sup 0} production compared to {Lambda} production can be explained by a destructive interference between {pi} and K exchange in the reaction pp {yields} p{Sigma}{sup 0}K{sup +}.
- Research Organization:
- Institut fuer Kernphysik, Forschungszentrum Juelich, Juelich (DE); Institute of Theoretical and Experimental Physics, Moscow (RU); Nuclear Theory Group and INT, Dept. of Physics, University of Washington, Seattle, Washington (US)
- Sponsoring Organization:
- None (US)
- OSTI ID:
- 784260
- Report Number(s):
- NONE; ISBN 1-56396-928-9; ISSN 0094-324X; CODEN APCPCS; ISBN 1-56396-928-9; ISSN 0094-324X; CODEN APCPCS
- Country of Publication:
- United States
- Language:
- English
Similar Records
The pp{yields}p{Lambda}K{sup +} and pp{yields}p{Sigma}{sup 0}K{sup +} reactions with chiral dynamics
Hyperon production in near-threshold nucleon-nucleon collisions
Associated strangeness production in the pp{yields}pK{sup +}K{sup -}p and pp{yields}pK{sup +{pi}0{Sigma}0} reactions
Journal Article
·
Thu Sep 15 00:00:00 EDT 2011
· Physical Review. C, Nuclear Physics
·
OSTI ID:21596728
Hyperon production in near-threshold nucleon-nucleon collisions
Journal Article
·
Tue Mar 14 23:00:00 EST 2006
· Physical Review. C, Nuclear Physics
·
OSTI ID:20771385
Associated strangeness production in the pp{yields}pK{sup +}K{sup -}p and pp{yields}pK{sup +{pi}0{Sigma}0} reactions
Journal Article
·
Sun Aug 15 00:00:00 EDT 2010
· Physical Review. C, Nuclear Physics
·
OSTI ID:21419466