The gluon and charm content of the deuteron
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 x bj = $$\frac{Q^2}{2_{PN.q}}$$ ~ 0.4, whereas it is strongly enhanced for x bj larger than 0.6. We discuss the applicability of our analysis and comment on how to extend it to the kinematic limit x bj → 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:
-
[1]
; [1]
;
[2]
; [3]
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Univ. of Paris-Sud and Saclay, CNRS-IN2P3, Orsay (France). Inst. of Nuclear Physics of Orsay (IPNO)
- Univ. of Paris-Sud and Saclay, CNRS-IN2P3, Orsay (France). Inst. of Nuclear Physics of Orsay (IPNO); RIKEN, Saitama (Japan). Interdisciplinary Theoretical Science Research Group (iTHES)
- Publication Date:
- Report Number(s):
- SLAC-PUB-17523
Journal ID: ISSN 0370-2693; PII: S0370269318305331
- Grant/Contract Number:
- AC02-76SF00515; SLAC-PUB-17523
- Type:
- Published Article
- Journal Name:
- Physics Letters. Section B
- Additional Journal Information:
- Journal Volume: 783; Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Research Org:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); Japan Society for the Promotion of Science (JSPS); French National Research Agency (ANR)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
- OSTI Identifier:
- 1458828
- Alternate Identifier(s):
- OSTI ID: 1461274
Brodsky, Stanley J., Chiu, Kelly Yu-Ju, Lansberg, Jean-Philippe, and Yamanaka, Nodoka. The gluon and charm content of the deuteron. United States: N. p.,
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. United States. doi:10.1016/j.physletb.2018.06.070.
Brodsky, Stanley J., Chiu, Kelly Yu-Ju, Lansberg, Jean-Philippe, and Yamanaka, Nodoka. 2018.
"The gluon and charm content of the deuteron". United States.
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. Section B},
number = C,
volume = 783,
place = {United States},
year = {2018},
month = {7}
}