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Title: The gluon and charm content of the deuteron

Abstract

Here, we evaluate the frame-independent gluon and charm parton-distribution functions (PDFs) of the deuteron utilizing light-front quantization and the impulse approximation. We use a nuclear wave function obtained from solving the nonrelativistic Schroedinger equation with the realistic Argonne v18 nuclear force, which we fold with the proton PDF. The predicted gluon distribution in the deuteron (per nucleon) is a few percent smaller than that of the proton in the domain xbj = $$\frac{Q^2}{2_{PN.q}}$$ ~ 0.4, whereas it is strongly enhanced for xbj larger than 0.6. We discuss the applicability of our analysis and comment on how to extend it to the kinematic limit xbj → 2. We also analyze the charm distribution of the deuteron within the same approach by considering both the perturbatively and non-perturbatively generated (intrinsic) charm contributions. In particular, we note that the intrinsic-charm content in the deuteron will be enhanced due to 6-quark "hidden-color" QCD configurations.

Authors:
; ; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); Japan Society for the Promotion of Science (JSPS); French National Research Agency (ANR)
OSTI Identifier:
1458828
Alternate Identifier(s):
OSTI ID: 1461274
Report Number(s):
SLAC-PUB-17523
Journal ID: ISSN 0370-2693; S0370269318305331; PII: S0370269318305331
Grant/Contract Number:  
AC02-76SF00515; SLAC-PUB-17523
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 783 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Brodsky, Stanley J., Chiu, Kelly Yu-Ju, Lansberg, Jean-Philippe, and Yamanaka, Nodoka. The gluon and charm content of the deuteron. Netherlands: N. p., 2018. Web. doi:10.1016/j.physletb.2018.06.070.
Brodsky, Stanley J., Chiu, Kelly Yu-Ju, Lansberg, Jean-Philippe, & Yamanaka, Nodoka. The gluon and charm content of the deuteron. Netherlands. doi:10.1016/j.physletb.2018.06.070.
Brodsky, Stanley J., Chiu, Kelly Yu-Ju, Lansberg, Jean-Philippe, and Yamanaka, Nodoka. Tue . "The gluon and charm content of the deuteron". Netherlands. doi:10.1016/j.physletb.2018.06.070.
@article{osti_1458828,
title = {The gluon and charm content of the deuteron},
author = {Brodsky, Stanley J. and Chiu, Kelly Yu-Ju and Lansberg, Jean-Philippe and Yamanaka, Nodoka},
abstractNote = {Here, we evaluate the frame-independent gluon and charm parton-distribution functions (PDFs) of the deuteron utilizing light-front quantization and the impulse approximation. We use a nuclear wave function obtained from solving the nonrelativistic Schroedinger equation with the realistic Argonne v18 nuclear force, which we fold with the proton PDF. The predicted gluon distribution in the deuteron (per nucleon) is a few percent smaller than that of the proton in the domain xbj = $\frac{Q^2}{2_{PN.q}}$ ~ 0.4, whereas it is strongly enhanced for xbj larger than 0.6. We discuss the applicability of our analysis and comment on how to extend it to the kinematic limit xbj → 2. We also analyze the charm distribution of the deuteron within the same approach by considering both the perturbatively and non-perturbatively generated (intrinsic) charm contributions. In particular, we note that the intrinsic-charm content in the deuteron will be enhanced due to 6-quark "hidden-color" QCD configurations.},
doi = {10.1016/j.physletb.2018.06.070},
journal = {Physics Letters B},
number = C,
volume = 783,
place = {Netherlands},
year = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2018.06.070

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Cited by: 5 works
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Works referencing / citing this record:

The spin structure of the nucleon
journal, June 2019

  • Deur, Alexandre; Brodsky, Stanley J.; de Téramond, Guy F.
  • Reports on Progress in Physics, Vol. 82, Issue 7
  • DOI: 10.1088/1361-6633/ab0b8f

The spin structure of the nucleon
journal, June 2019

  • Deur, Alexandre; Brodsky, Stanley J.; de Téramond, Guy F.
  • Reports on Progress in Physics, Vol. 82, Issue 7
  • DOI: 10.1088/1361-6633/ab0b8f

Transversity generalized parton distributions for the deuteron
journal, October 2018