Document Type
Article
Department/Program
Physics
Pub Date
2014
First Page
15
Abstract
We measured the ratios of electroproduction cross sections from a proton target for three exclusive meson-baryon final states: AK(+), p pi(0), and n pi(+), with the CLAS detector at Jefferson Lab. Using a simplemodel of quark hadronization, we extract q (q) over bar creation probabilities for the first time in exclusive two-body production, in which only a single q (q) over bar pair is created. We observe a sizable suppression of strange quark-antiquark pairs compared to nonstrange pairs, similar to that seen in high-energy production.
Recommended Citation
El Alaoui, A.; Moody, C. I.; Wood, M. H.; and Griffioen, K. A., Strangeness Suppression of q(q)over-bar Creation Observed in Exclusive Reactions (2014).
https://doi.org/10.1103/PhysRevLett.113.152004
DOI
https://doi.org/10.1103/PhysRevLett.113.152004
