Theoretical study of the configuration in the deuteron using an antiproton beam
Abstract
We study the manifestation of the Δ++ – Δ– component of the deuteron wave function in the exclusive reaction p¯d → π–π–Δ++. Due to the large binding energy the internal motion in the Δ – Δ system is relativistic. We take this into account within the light-cone (LC) wave function formalism and, indeed, found large differences between calculations based on the LC and nonrelativistic (NR) wave functions. Here, we demonstrate that the consistent LC treatment of the Δ – Δ system plays the key role in the separation of the signal and background. Within the LC approach, the characteristic shape of the momentum distribution of the Δ – Δ bound system predicted by the meson-exchange model is well visible on the background of usual annihilations at beam momenta between 10 and 15 GeV/c.
- Authors:
-
- Forschungszentrum Jülich (Germany); National Research Center “Kurchatov Inst.”, Moscow (Russia); Frankfurt Inst. for Advanced Studies (FIAS) (Germany)
- Forschungszentrum Jülich (Germany)
- Pennsylvania State Univ., University Park, PA (United States)
- Publication Date:
- Research Org.:
- Pennsylvania State Univ., University Park, PA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1610235
- Alternate Identifier(s):
- OSTI ID: 1483038
- Grant/Contract Number:
- FG02-93ER40771
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 98; Journal Issue: 5; Journal ID: ISSN 2469-9985
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; physics; bound states; direct reactions; Feynman diagrams; form factors; nuclear reactions; particle interactions
Citation Formats
Larionov, A. B., Gillitzer, A., Haidenbauer, J., and Strikman, M. Theoretical study of the Δ++-Δ- configuration in the deuteron using an antiproton beam. United States: N. p., 2018.
Web. doi:10.1103/physrevc.98.054611.
Larionov, A. B., Gillitzer, A., Haidenbauer, J., & Strikman, M. Theoretical study of the Δ++-Δ- configuration in the deuteron using an antiproton beam. United States. https://doi.org/10.1103/physrevc.98.054611
Larionov, A. B., Gillitzer, A., Haidenbauer, J., and Strikman, M. Wed .
"Theoretical study of the Δ++-Δ- configuration in the deuteron using an antiproton beam". United States. https://doi.org/10.1103/physrevc.98.054611. https://www.osti.gov/servlets/purl/1610235.
@article{osti_1610235,
title = {Theoretical study of the Δ++-Δ- configuration in the deuteron using an antiproton beam},
author = {Larionov, A. B. and Gillitzer, A. and Haidenbauer, J. and Strikman, M.},
abstractNote = {We study the manifestation of the Δ++ – Δ– component of the deuteron wave function in the exclusive reaction p¯d → π–π–Δ++. Due to the large binding energy the internal motion in the Δ – Δ system is relativistic. We take this into account within the light-cone (LC) wave function formalism and, indeed, found large differences between calculations based on the LC and nonrelativistic (NR) wave functions. Here, we demonstrate that the consistent LC treatment of the Δ – Δ system plays the key role in the separation of the signal and background. Within the LC approach, the characteristic shape of the momentum distribution of the Δ – Δ bound system predicted by the meson-exchange model is well visible on the background of usual annihilations at beam momenta between 10 and 15 GeV/c.},
doi = {10.1103/physrevc.98.054611},
journal = {Physical Review C},
number = 5,
volume = 98,
place = {United States},
year = {Wed Nov 21 00:00:00 EST 2018},
month = {Wed Nov 21 00:00:00 EST 2018}
}
Web of Science
Figures / Tables:
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