The electromagnetic form factors of the Λ in the timelike region
The reaction e+e−→Λ¯Λ is investigated for energies close to the threshold. Specific emphasis is put on the role played by the interaction in the final Λ¯Λ system which is taken into account rigorously. For that interaction a variety of Λ¯Λ potential models is employed that have been constructed for...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2016-10-01
|
| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S037026931630497X |
| Summary: | The reaction e+e−→Λ¯Λ is investigated for energies close to the threshold. Specific emphasis is put on the role played by the interaction in the final Λ¯Λ system which is taken into account rigorously. For that interaction a variety of Λ¯Λ potential models is employed that have been constructed for the analysis of the reaction p¯p→Λ¯Λ in the past. The enhancement of the effective form factor for energies close to the Λ¯Λ threshold, seen in pertinent experiments, is reproduced. Predictions for the Λ electromagnetic form factors GM and GE in the timelike region and for spin-dependent observables such as spin-correlation parameters are presented. |
|---|---|
| ISSN: | 0370-2693 1873-2445 |