Search for the Θ(1540) + pentaquark using kaon secondary interactions at Belle
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Journal Volume
632
Journal Issue
2-3
Pages
173-180
Date Issued
2006
Author(s)
Abstract
Using kaon secondary interactions in the material of the Belle detector, we search for both inclusive and exclusive production of the Î (1540) +. We set an upper limit of 2.5% at the 90% C.L. on the ratio of the Î (1540)+ to Î (1520) inclusive production cross sections. We also search for the Î (1540)+ as an intermediate resonance in the charge exchange reaction K+nâ pKS 0. We set an upper limit of Î Î +<0.64 MeV at the 90% C.L. for m Î +=1.539 MeV/c2. These results are obtained from a 397 fb-1 data sample collected with the Belle detector near the Î¥(4S) resonance, at the KEKB asymmetric energy e+e- collider. © 2005 Elsevier B.V. All rights reserved.
SDGs
Type
journal article