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Measurement of Transverse Spin Dependent Azimuthal Correlations of Charged Pion(s) in p↑p Collisions at √s=200 GeV at STAR
by Babu R. Pokhrel
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Submission summary
| Authors (as registered SciPost users): | Babu Pokhrel |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2108.00119v2 (pdf) |
| Date accepted: | 2022-05-06 |
| Date submitted: | 2022-02-21 21:59 |
| Submitted by: | Pokhrel, Babu |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Experimental |
Abstract
At the leading twist, the transversity distribution function, hq1(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 it is difficult because of its chiral-odd nature. In transversely polarized proton-proton collisions (p↑p), hq1(x) can be coupled with another chiral-odd partner, a spin-dependent fragmentation function (FF). The resulting asymmetries in hadron(s) azimuthal correlations directly probe hq1(x). We report the measurement of correlation asymmetries for charged pion(s) in p↑p, through the Collins and the Interference FF channel.
Published as SciPost Phys. Proc. 8, 047 (2022)