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Transverse spin asymmetries for inclusive $\rho^0$ production in SIDIS at COMPASS

by A. Kerbizi for the COMPASS Collaboration

Submission summary

As Contributors: Albi Kerbizi
Preprint link: scipost_202107_00040v1
Date submitted: 2021-07-21 16:03
Submitted by: Kerbizi, Albi
Submitted to: SciPost Physics Proceedings
Proceedings issue: DIS2021
Academic field: Physics
Specialties:
  • High-Energy Physics - Experiment
Approach: Experimental

Abstract

The production of vector mesons in SIDIS is a particularly interesting channel to study the polarized fragmentation and related phenomena. Preliminary COMPASS results for the first measurement of inclusive $\rho^0$ Collins and Sivers transverse-spin asymmetries are presented here for the first time. The analysis is based on the data-set collected by COMPASS in $2010$ using a $160\, \rm{GeV}/c$ $\mu^+$ beam and a transversely polarized $NH_3$ target. The asymmetries are extracted as function of Bjorken-$x$, of the total transverse momentum of the oppositely charged hadron pair and of the fraction of available energy $z$ carried by the pair. Indications for positive Collins and Sivers asymmetries are obtained as expected from models.

Current status:
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Submission scipost_202107_00040v1 on 21 July 2021

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