Enhanced production of ΛΛ pairs, above the prediction of a two-step process model, is observed near threshold (around the masses of 2.23 - 2.26 GeV/c2) in the 12C(K-,K+) reaction at pK- = 1.66 GeV/c using a scintillating fiber target. The differential cross section for the ΛΛ production averaged over 2.3° ≤ θK+ ≤ 14.7° in the momentum region 0.95 ≤ pK+ ≤ 1.3 GeV/c was found to be 7.6 ± 1.3 μb/sr, and that for the enhancement approximately 3 μb/sr.
|Journal||Nuclear Physics A|
|Publication status||Published - 1998 Aug 24|
ASJC Scopus subject areas
- Nuclear and High Energy Physics