Transversity Distributions and Tensor Charges of the Nucleon: Extraction from Dihadron Production and Their Universal Nature

Cocuzza, C.; Metz, A.; Pitonyak, D.; Prokudin, A.; Sato, N.; Seidl, R.

doi:10.1103/PhysRevLett.132.091901

Transversity Distributions and Tensor Charges of the Nucleon: Extraction from Dihadron Production and Their Universal Nature

Journal Article · Tue Feb 27 00:00:00 EST 2024 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.132.091901· OSTI ID:2315057

; Metz, A.; Pitonyak, D.; Prokudin, A.; Sato, N.; Seidl, R.

We perform the first global quantum chromodynamics (QCD) analysis of dihadron production for a comprehensive set of data in electron-positron annihilation, semi-inclusive deep-inelastic scattering, and proton-proton collisions, from which we extract simultaneously the transversity distributions of the nucleon and $π^{+} π^{-}$ dihadron fragmentation functions. We incorporate in our fits known theoretical constraints on transversity, namely, its small- $x$ asymptotic behavior and the Soffer bound. We furthermore show that lattice-QCD results for the tensor charges can be successfully included in the analysis. This resolves the previously reported incompatibility between the tensor charges extracted from dihadron production data and lattice QCD. We also find agreement with results for the transversity and tensor charges obtained from measurements on single-hadron production. Overall, our work demonstrates for the first time the universal nature of all available information for the transversity distributions and the tensor charges of the nucleon.

Published by the American Physical Society 2024

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE Office of Science (SC), Nuclear Physics (NP)

Contributing Organization:: Jefferson Lab Angular Momentum (JAM) Collaboration

Grant/Contract Number:: AC05-06OR23177

OSTI ID:: 2315057

Alternate ID(s):: OSTI ID: 2318469

Report Number(s):: DOE/OR/23177--6444; JLAB-THY--23-3859; arXiv:2306.12998; 091901

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 132; ISSN 0031-9007; ISSN PRLTAO

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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