Details

Conference
Proceedings of the 24th International Spin Symposium (SPIN2021)
JPS Conference Proceedings

Title
Measurement of Transverse Spin Dependent Azimuthal Correlations of \(\pi ^{ + }\pi ^{ - }\) in \(p^{ \uparrow }p\) Collisions at \(\sqrt{s} = 200\) GeV at STAR

Abstract
At the leading twist, the transversity distribution function, \(h_{1}^{q}(x)\), where x is the longitudinal momentum fraction of the proton carried by quark q, encodes the transverse spin structure of the nucleon. Extraction of \(h_{1}^{q}(x)\) is difficult because of its chiral-odd nature. In transversely polarized proton–proton collisions (\(p^{ \uparrow }p\)), \(h_{1}^{q}(x)\) can be coupled with another chiral-odd partner, a spin-dependent fragmentation function (FF). The resulting asymmetries in azimuthal correlations of di-hadron pairs directly probe \ (h_{1}^{q} (x)\). We report the measurement of di-pion (\(\pi ^{ + }\pi ^{ - }\)) correlation asymmetries in \(p^{ \uparrow }p\), which is sensitive to the valence quark transversity.

Author(s)
https://doi.org/10.7566/JPSCP.37.020121

eISBN
489027-150-3


BibTex Citation
@inbook{doi:10.7566/JPSCP.37.020121,
author = { Babu Pokhrel},
title = {Measurement of Transverse Spin Dependent Azimuthal Correlations of <inline-formula><tex-math version="MathJax" xml:space="preserve">\(\pi ^{ + }\pi ^{ - }\)</tex-math></inline-formula> in <inline-formula><tex-math version="MathJax" xml:space="preserve">\(p^{ \uparrow }p\) </tex-math></inline-formula> Collisions at <inline-formula><tex-math version="MathJax" xml:space="preserve">\(\sqrt{s} = 200\) </tex- math> </inline- formula>  GeV at STAR},
booktitle = {Proceedings of the 24th International Spin Symposium (SPIN2021)},
chapter = {},
pages = {},
doi = {10.7566/JPSCP.37.020121},
URL = {https://journals.jps.jp/doi/abs/10.7566/JPSCP.37.020121},
eprint = {https://journals.jps.jp/doi/pdf/10.7566/JPSCP.37.020121} }