| Full text | |
| Author(s): |
Malabarba, Brenda B.
;
Khemchandani, K. P.
;
Torres, A. Martinez
;
Nam, Seung-il
Total Authors: 4
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW D; v. 111, n. 1, p. 17-pg., 2025-01-21. |
| Abstract | |
In view of the renewing experimental interest for searching strangeness +1 baryons at J-PARC, we study the existence of light baryon resonances with strangeness +1 generated in the K - (N*/Delta*) system, where N* represents either N*(1535)/N*(1650)/N*(1700), and Delta* corresponds to Delta(1620). The description of the properties of the aforementioned states requires considering the dynamics involved in the coupled pseudoscalar-baryon (PB) and vector-baryon (VB) systems with strangeness S = 0 in the s wave. For the purpose of our current study, we consider the PB and VB channels to which the mentioned N* and Delta* resonances couple and solve the Faddeev equations for the coupled channel system K-PB, K-VB, with all interactions being in the s wave. Despite some strong attraction present in two of the subsystems, we do not find clear evidence supporting the formation of strangeness +1 states, with spin-parity JP = 1/2+, in the energy region 2000-2200 MeV. However, the case of spin-parity JP = 3/2+ seems more promising, showing the formation of a resonance with a mass around 2167 MeV, with a width of 90-100 MeV. We suggest that a signal of such a state could be found in processes with final states like KN, K*(892)N. (AU) | |
| FAPESP's process: | 22/08347-9 - New and enigmatic hadrons |
| Grantee: | Kanchan Pradeepkumar Khemchandani |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 20/00676-8 - Exotic three-hadrons states with strangeness |
| Grantee: | Brenda Bertotto Malabarba |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 23/01182-7 - Physics of exotic hadrons |
| Grantee: | Alberto Martinez Torres |
| Support Opportunities: | Regular Research Grants |