Hyperon photo- and electroproduction at CLAS

TL;DR

This paper reports on studies of strange baryon production using the CLAS detector, revealing new insights into baryon spin projections, polarization effects, and decay angular distributions in photo- and electroproduction processes.

Contribution

It presents new experimental results on strange baryon decay angular distributions and polarization phenomena, expanding understanding of baryon production mechanisms.

Findings

Decay angular distributions of $ ext{Λ}(1520)$ reveal spin projections.

Induced polarization of $ ext{Λ}(1116)$ observed with unpolarized electrons.

Analysis of virtual photon decompositions enhances understanding of production processes.

Abstract

The large acceptance and high multiplicity capabilities of the CLAS detector make it possible to study a wide range of previously unmeasured strange baryon production processes. Studies of the decay angular distributions of electroproduced strange baryons have yielded several interesting new results. The $\Lambda$(1520) electroproduction decay angular distributions shed light on the spin projections of the $\Lambda$(1520). Analysis of the decay angular distributions of the weakly decaying $\Lambda$(1116) have revealed the induced baryon polarization due to unpolarized incident electron beams. In addition to these topics, other features of the CLAS strange baryon program, such as photoproduction and virtual photon L-T decompositions, are also briefly summarized.