We have studied (K-,K+) reactions at PK- = 1.66 GeV/c by using a newly developed active target made of plastic scintillating fibers. The H dibaryon (S = -2,I(Jπ) = 0(0+)) has been searched for through the direct process. K-+C→ K+ + H + X, by the analysis of the K+ momentum spectrum with the help of visual data of the scintillating fiber target. No evidence for the H production was observed. Upper limits for the differential cross section for the H production in the forward direction of the K+ is 0.04-0.6 μb/sr at the 90% confidence level for the H mass range from 1850 to 2215 MeV/c2.
|Number of pages||6|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|Publication status||Published - Jun 20 1996|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics