Gast ::
| Hauptseite > Publikationsdatenbank > On the ΣN cusp in the pp → pK+Λ reaction |
| Hauptseite > Publikationsdatenbank > On the ΣN cusp in the pp → pK+Λ reaction |
| Journal Article | FZJ-2013-05110 |
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
2013
Springer
Berlin
This record in other databases: 
Please use a persistent id in citations: http://hdl.handle.net/2128/22806 doi:10.1140/epja/i2013-13041-8
Abstract: Measurements of the pp → pK (+) Λ reaction at T ( )p( ) = 2.28 GeV have been carried out at COSY-TOF. In addition to the Λp FSI and N (*) resonance excitation effects a pronounced narrow structure is observed in the Dalitz plot and in its projection on the pΛ invariant mass. The strongly asymmetric structure appears at the pp → NK (+) Σ threshold and is interpreted as the ΣN cusp effect. The observed width of about 20 MeV/c (2) is substantially broader than anticipated from previous measurements as well as theoretical predictions. Angular distributions of this cusp structure are shown to be dissimilar to those in the residual pK (+) Λ channel, but similar to those observed in the pK (+) Σ (0) channel. PDF = http://www.springerlink.com/
Keyword(s): p Lambda: final-state interaction ; angular distribution ; nucleon resonance ; nucleon Sigma: cusp effect ; Dalitz plot ; asymmetry ; COSY-TOF ; p p: exclusive reaction ; Lambda: hadroproduction ; K+: associated production ; channel cross section: measured ; experimental results ; Juelich COSY PS ; p p --> Lambda p K+ ; 2.28 GeV-kin
; Current Contents - Social and Behavioral Sciences ; JCR ; Nationallizenz
; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection
|
The record appears in these collections: |
PDF
PDF (PDFA)