| Full text | |
| Author(s): |
Bediaga, I.
;
Shalchi, M. A.
;
Frederico, T.
;
Magalhaes, P. C.
Total Authors: 4
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW D; v. 110, n. 9, p. 12-pg., 2024-11-27. |
| Abstract | |
We explore the contribution of hadronic final state interactions (FSI) to propose a production mechanism and interpret the puzzle on helicity angle distributions in B+ -* p p<overline>,r+ and B+ -* pp<overline>K+ decays. Experimental results indicate opposite helicity angle 6p distributions in those two channels with the difference presenting a remarkable linear dependence on cos 6p. We assume the production mechanism is driven by B+ -* xym+ -* pp<overline>m+, where m = ,r or K, and xy represents favorable mesonic decay channels producing p p<overline>. We develop a model that includes a three-body final state interaction between the p, p<overline>, and ,r+ or K+ considering the dominance of elastic channels ,r+p and K+ p<overline> interactions below 2 GeV/c2. Our three-body framework with FSI explains qualitatively the observed opposite behavior of the helicity distributions and the observed linearity. (AU) | |
| FAPESP's process: | 19/07767-1 - Nuclear reactions with weakly-bound or cluster-structured radioactive and stable nuclei |
| Grantee: | Leandro Romero Gasques |
| Support Opportunities: | Research Projects - Thematic Grants |