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Title: Nucleon-to-Roper electromagnetic transition form factors at large Q 2

Abstract

High-precision nucleon-resonance electroproduction data on a large kinematic domain of energy and momentum transfer have proven crucial in revealing novel features of strong interactions within the Standard Model and unfolding structural details of baryon excited states. Thus, in anticipation of new data reaching to unprecedented photon virtuality, we employ a quark-diquark approximation to the three-valence-quark bound-state problem to compute γ*p → R + and γ*n → R 0 transition form factors on Q 2/m 2 Nϵ[0,12], where m N is the nucleon mass. Having simultaneously analyzed both charged and neutral channels, we also provide a quark-flavor separation of the transition form factors. Furthermore, the results should be useful in planning new-generation experiments.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6]
  1. Univ. Estadual Paulista, Sao Paulo, SP (Brazil)
  2. Nanjing Univ., Jiangsu (China)
  3. European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) and Fondazione Bruno Kessler Villa Tambosi, Villazzano (TN) (Italy)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
  5. Univ. of Huelva, Huelva (Spain)
  6. Univ. Pablo de Olavide, Sevilla (Spain)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); National Natural Science Foundation of China (NNSFC); European Union, Horizon 2020 Research and Innovation Programme
OSTI Identifier:
1498292
Alternate Identifier(s):
OSTI ID: 1495067
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 99; Journal Issue: 3; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Chen, Chen, Lu, Ya, Binosi, Daniele, Roberts, Craig D., Rodríguez-Quintero, Jose, and Segovia, Jorge. Nucleon-to-Roper electromagnetic transition form factors at large Q2. United States: N. p., 2019. Web. doi:10.1103/PhysRevD.99.034013.
Chen, Chen, Lu, Ya, Binosi, Daniele, Roberts, Craig D., Rodríguez-Quintero, Jose, & Segovia, Jorge. Nucleon-to-Roper electromagnetic transition form factors at large Q2. United States. doi:10.1103/PhysRevD.99.034013.
Chen, Chen, Lu, Ya, Binosi, Daniele, Roberts, Craig D., Rodríguez-Quintero, Jose, and Segovia, Jorge. Tue . "Nucleon-to-Roper electromagnetic transition form factors at large Q2". United States. doi:10.1103/PhysRevD.99.034013.
@article{osti_1498292,
title = {Nucleon-to-Roper electromagnetic transition form factors at large Q2},
author = {Chen, Chen and Lu, Ya and Binosi, Daniele and Roberts, Craig D. and Rodríguez-Quintero, Jose and Segovia, Jorge},
abstractNote = {High-precision nucleon-resonance electroproduction data on a large kinematic domain of energy and momentum transfer have proven crucial in revealing novel features of strong interactions within the Standard Model and unfolding structural details of baryon excited states. Thus, in anticipation of new data reaching to unprecedented photon virtuality, we employ a quark-diquark approximation to the three-valence-quark bound-state problem to compute γ*p → R+ and γ*n → R0 transition form factors on Q2/m2Nϵ[0,12], where mN is the nucleon mass. Having simultaneously analyzed both charged and neutral channels, we also provide a quark-flavor separation of the transition form factors. Furthermore, the results should be useful in planning new-generation experiments.},
doi = {10.1103/PhysRevD.99.034013},
journal = {Physical Review D},
issn = {2470-0010},
number = 3,
volume = 99,
place = {United States},
year = {2019},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on February 19, 2020
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