Odderon mechanism for transverse single spin asymmetry in the Wandzura-Wilczek approximation

Znanstveni rad - Izvorni znanstveni rad

• Autor: Sanjin Benić
• Autor: Davor Horvatić
• Autor: Abhiram Kaushik
• Autor: Eric Andreas Vivoda
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

We compute the transverse single spin asymmetry in forward 𝑝↑𝑝→ℎ𝑋 and 𝑝↑𝐴→ℎ𝑋 collisions from the odderon mechanism originally suggested by Kovchegov and Sievert [Phys. Rev. D 86, 034028 (2012)]. Working in the hybrid approach of the color glass condensate effective theory, we first identify the relevant collinear parton distribution function (PDF) of the transversely polarized proton 𝑝↑ as the intrinsic twist-3 𝑔𝑇(𝑥) distribution. We further argue that the complete polarized cross section also contains contributions from the kinematical and the dynamical twist-3 PDFs, in addition to the intrinsic twist-3 PDF. By restricting to the Wandzura-Wilczek approximation, where the dynamical twist-3 PDFs are dropped, we find that the odderon contribution to the polarized cross section for inclusive hadron production is exactly zero at the next-to-leading order in the strong coupling.

• Ključne riječi (engleski): transverse single spin asymmetry; Wandzura-Wilczek approximation
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Physical Review D
• Brojčani podaci: vol. 106, br. 11, 114025
• p-ISSN: 2470-0010
• e-ISSN: 2470-0029
• DOI: https://doi.org/10.1103/PhysRevD.106.114025
• URN:NBN: urn:nbn:hr:217:335415
• Datum objave publikacije: 2022-12-26
• Projekt: Šifra: UIP-2019-04-5332; Naziv (hrvatski): Gluonsko zasićenje u visoko energetskim proton-jezgra sudarima - istraživanje novih fenomenoloških smjernica; Naziv (engleski): Gluon saturation in high energy proton-nucleus collisions - exploring new phenomenological directions; Kratica: SAT-PHENO; Voditelj: Sanjin Benić; Pravna nadležnost: Hrvatska; Financijer: Hrvatska zaklada za znanost; Linija financiranja: Installation Research Projects
• URL dokumenta: https://link.aps.org/doi/10.1103/PhysRevD.106.114025
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. Received 24 October 2022; accepted 5 December 2022; published 26 December 2022. .
• Datum i vrijeme pohrane: 2024-08-03 10:35:40