Date of Original Version

12-9-2014

Type

Article

PubMed ID

25375706

Rights Management

© 2014 American Physical Societ

Abstract or Description

We measured the ratios of electroproduction cross sections from a proton target for three exclusive meson-baryon final states: ΛK(+), pπ(0), and nπ(+), with the CLAS detector at Jefferson Lab. Using a simple model of quark hadronization, we extract qq creation probabilities for the first time in exclusive two-body production, in which only a single qq 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.

DOI

http://dx.doi.org/10.1103/PhysRevLett.113.152004

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Published In

Physical Review Letters, 113, 15, 152004.