Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10726069 | Physics Letters B | 2006 | 4 Pages |
Abstract
A combined fit is made to E791 data on DâKÏÏ, LASS data on KÏ elastic scattering, and BESâII data on J/ΨâKâ(890)KÏ. In all cases, the KÏ S-wave is fitted well with a κ pole and K0(1430); the κ requires an s-dependent width with an Adler zero near threshold. The pole position of the κ is at M=(750â55+30)âi(342±60)MeV. The E791 Collaboration fitted their data using a form factor for the production process DâκÏ. It is shown that this form factor is not needed. The data require point-like production with an RMS radius <0.38fm with 95% confidence.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
D.V. Bugg,