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Title: Accessing the nucleon transverse structure in inclusive deep inelastic scattering

Here, we revisit the standard analysis of inclusive Deep Inelastic Scattering off nucleons taking into account the fact that on-shell quarks cannot be present in the final state, but they rather decay into hadrons - a process that can be described in terms of suitable "jet" correlators. As a consequence, a spin-flip term associated with the invariant mass of the produced hadrons is generated non perturbatively and couples to the target's transversity distribution function. In inclusive cross sections, this provides an hitherto neglected and large contribution to the twist-3 part of the g 2 structure function, that can explain the discrepancy between recent calculations and fits of this quantity. It also provides an extension of the Burkhardt-Cottingham sum rule, putting constraints on the small-x behavior of the transversity function, as well as an extension of the Efremov-Teryaev-Leader sum rule, suggesting a novel way to measure the tensor charge of the proton.
Authors:
ORCiD logo [1] ; ORCiD logo [2]
  1. Hampton Univ., Hampton, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. Univ. degli Studi di Pavia, and INFN, Pavia (Italy)
Publication Date:
Report Number(s):
JLAB-THY-17-2483; DOE/OR/23177-4159; arXiv:1706.02000
Journal ID: ISSN 0370-2693; PII: S0370269317306962
Grant/Contract Number:
AC05-06OR23177; SC008791; 647981
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 773; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1379970
Alternate Identifier(s):
OSTI ID: 1399109

Accardi, Alberto, and Bacchetta, Alessandro. Accessing the nucleon transverse structure in inclusive deep inelastic scattering. United States: N. p., Web. doi:10.1016/j.physletb.2017.08.074.
Accardi, Alberto, & Bacchetta, Alessandro. Accessing the nucleon transverse structure in inclusive deep inelastic scattering. United States. doi:10.1016/j.physletb.2017.08.074.
Accardi, Alberto, and Bacchetta, Alessandro. 2017. "Accessing the nucleon transverse structure in inclusive deep inelastic scattering". United States. doi:10.1016/j.physletb.2017.08.074.
@article{osti_1379970,
title = {Accessing the nucleon transverse structure in inclusive deep inelastic scattering},
author = {Accardi, Alberto and Bacchetta, Alessandro},
abstractNote = {Here, we revisit the standard analysis of inclusive Deep Inelastic Scattering off nucleons taking into account the fact that on-shell quarks cannot be present in the final state, but they rather decay into hadrons - a process that can be described in terms of suitable "jet" correlators. As a consequence, a spin-flip term associated with the invariant mass of the produced hadrons is generated non perturbatively and couples to the target's transversity distribution function. In inclusive cross sections, this provides an hitherto neglected and large contribution to the twist-3 part of the g2 structure function, that can explain the discrepancy between recent calculations and fits of this quantity. It also provides an extension of the Burkhardt-Cottingham sum rule, putting constraints on the small-x behavior of the transversity function, as well as an extension of the Efremov-Teryaev-Leader sum rule, suggesting a novel way to measure the tensor charge of the proton.},
doi = {10.1016/j.physletb.2017.08.074},
journal = {Physics Letters. Section B},
number = C,
volume = 773,
place = {United States},
year = {2017},
month = {9}
}