Quark recombination model for polarizations in inclusive hyperon productions at high energy

TL;DR

This paper applies the quark recombination model to explain hyperon polarization in high-energy photon-induced reactions, successfully reproducing experimental polarization data and providing insights into the underlying mechanisms.

Contribution

It extends the quark recombination model to hyperon photoproduction, explaining polarization phenomena and the empirical rule in a new context.

Findings

Significant hyperon polarization observed in photon-induced reactions.

The model reproduces polarization patterns seen in experiments.

Provides a theoretical basis for the empirical polarization rule.

Abstract

We investigate the transverse polarization of hyperons produced by the photon induced reactions using the quark recombination model. This model reproduces polarizations of hadrons produced by the hadron-hadron collisions and accounts for the origin of the empirical rule by DeGrand and Miettinen. We find significant polarizations in the hyperon photoproduction by applying this model to the $\gamma N \ra \Lam $ $(\Sigma^{0}) + X$ reaction.