Search for Theta+ via pi- p --> K- X reaction near production threshold
| dc.creator | Miwa, K. | |
| dc.date | 2006-01-23 | |
| dc.date | 2006-02-24 | |
| dc.date.accessioned | 2026-07-07T10:30:33Z | |
| dc.date.available | 2026-07-07T10:30:33Z | |
| dc.description | We have searched for $Θ^{+}$ via $π^{-}p \to K^{-}X$ reaction using 1.87 and 1.92 GeV/c $π^{-}$ beam at the K2 beam line of the KEK 12 GeV Proton Synchrotron. In the missing mass spectrum at beam momentum of 1.92 GeV/$c$, a bump has been found at 1530 MeV/$c^{2}$ which is consistent with the mass reported by several experiments. The statistical significance of this bump, however, is only 2.5$-2.7σ$. Therefore we have derived the upper limit of $Θ^{+}$ production cross section via $π^{-}p \to K^{-}Θ^{+}$ reaction which is 4.3$μ$b at 90% confidence level assuming that $Θ^{+}$ is produced isotropically in the center of mass system. | |
| dc.description | 12pages, 6figures, to be published in Physics Letters B | |
| dc.identifier | https://arxiv.org/abs/nucl-ex/0601032 | |
| dc.identifier | http://arxiv.org/abs/nucl-ex/0601032 | |
| dc.identifier | Phys.Lett.B635:72-79,2006 | |
| dc.identifier | doi:10.1016/j.physletb.2006.02.048 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178164 | |
| dc.subject | Nuclear Experiment | |
| dc.title | Search for Theta+ via pi- p --> K- X reaction near production threshold | |
| dc.type | text |