The First Stage of Polarization Program Spascharm at the Accelerator U-70 of Ihep

TL;DR

This paper discusses the initial phase of the SPASCHARM polarization program at U-70, focusing on measuring single-spin asymmetries in various reactions using unpolarized beams and polarized targets to explore polarization phenomena.

Contribution

It introduces the first stage of the SPASCHARM program, detailing the experimental setup and the approach to studying polarization effects with different beams and targets.

Findings

Preparation for measuring SSA in exclusive and inclusive reactions.

Use of diverse unpolarized beams at 30-60 GeV.

Implementation of polarized targets to study flavor and isotopic spin effects.

Abstract

The first stage of the proposed polarization program SPASCHARM includes the measurements of the single-spin asymmetry (SSA) in exclusive and inclusive reactions with production of stable hadrons and the light meson and baryon resonances.In this study we foresee of using the variety of the unpolarized beams (pions, kaons, protons and antiprotons) in the energy range of 30-60 GeV. The polarized proton and deuteron targets will be used for revealing the flavor and isotopic spin dependencies of the polarization phenomena. The neutral and charged particles in the final state will be detected.