Soleymaninia, Maryam and Goharipour, Muhammad and Khanpour, Hamzeh (2019) Impact of unidentified light charged hadron data on the determination of pion fragmentation functions. Physical Review D, 99 (034024). ISSN 2470-0029

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Abstract

In this paper a new comprehensive analysis of parton-to-pion fragmentation functions (FFs) is performed for the first time by including all experimental datasets on single inclusive pion as well as unidentified light charged hadron production in electron-positron (eþe−) annihilation.We determine the pion FFs along with their uncertainties using the standard “Hessian” technique at next-to-leading order (NLO) and next-to-nextto- leading order (NNLO) in perturbative QCD. It is shown that the determination of pion FFs using simultaneously the datasets from pion and unidentified light charged hadron production leads to the reduction of all pion FF uncertainties, especially for the case of strange quark and gluon FFs by significant factors. In this study, we have quantified the constraints that these datasets could impose on the extracted pion FFs. Our results also illustrate the significant improvement in the precision of FFs fits achievable by the inclusion of higher-order corrections. The improvements on FF uncertainties as well as fit quality have been clearly discussed.

Item Type:	Article
Additional Information:	Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/. 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. Cite as: Soleymaninia, M. & Goharipour, Muhammad & Khanpour, Hamzeh. (2019). Impact of unidentified light charged hadron data on the determination of pion fragmentation functions. Physical Review D. 99. 10.1103/PhysRevD.99.034024.
Keywords:	unidentified light charged hadron data; determination; pion fragmentation functions; frasgmentation into hadrons;
Academic Unit:	Faculty of Science and Engineering > Theoretical Physics
Item ID:	14781
Identification Number:	https://doi.org/10.1103/PhysRevD.99.034024
Depositing User:	Hamzeh Khanpour
Date Deposited:	10 Sep 2021 15:52
Journal or Publication Title:	Physical Review D
Publisher:	American Physical Society
Refereed:	Yes
Funders:	School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), University of Science and Technology of Mazandaran
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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