Recent positivity constraints for spin observables and parton distributions

TL;DR

This paper discusses new positivity constraints on spin observables and their implications for parton distributions, enhancing understanding of underlying dynamics and comparing with recent experimental data.

Contribution

It introduces novel positivity constraints for spin observables and explores their impact on parton distribution functions, providing new insights and comparisons with recent data.

Findings

New positivity constraints for spin observables

Implications for parton distribution functions

Comparison with recent experimental data

Abstract

Spin observables allow a deeper understanding of the nature of the underlying dynamics and positivity reduces substantially their allowed domains. We will present some new positivity constraints for spin observables and their implications for parton distributions. We will also make some comparisons with recent data.