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Title: Transverse charge and magnetization densities: Improved chiral predictions down to b=1 fms

Abstract

The transverse charge and magnetization densities provide insight into the nucleon’s inner structure. In the periphery, the isovector components are clearly dominant, and can be computed in a model-independent way by means of a combination of chiral effective field theory (cEFT) and dispersion analysis. With a novel N=D method, we incorporate the pion electromagnetic formfactor data into the cEFT calculation, thus taking into account the pion-rescattering effects and r-meson pole. As a consequence, we are able to reliably compute the densities down to distances b1 fm, therefore achieving a dramatic improvement of the results compared to traditional cEFT calculations, while remaining predictive and having controlled uncertainties.

Authors:
 [1];  [2];  [3];  [1]
  1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. Johannes Gutenberg Univ., Mainz (Germany)
  3. Spanish National Research Council (CSIC), Valencia (Spain). Univ. of Valencia (UV), Inst. de Fisica Corpuscular
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1434237
Report Number(s):
JLAB-THY-18-2687; DOE/OR/23177-4419
DOE Contract Number:  
AC05-06OR23177
Resource Type:
Conference
Journal Name:
Proceedings of Science
Additional Journal Information:
Journal Volume: QCDEV2017; Conference: QCD Evolution Workshop (QCD 2017), 22-26 May 2017. Newport News, VA, USA
Country of Publication:
United States
Language:
English

Citation Formats

Alarcon, Jose Manuel, Hiller Blin, Astrid N., Vicente Vacas, Manuel J., and Weiss, Christian. Transverse charge and magnetization densities: Improved chiral predictions down to b=1 fms. United States: N. p., 2018. Web.
Alarcon, Jose Manuel, Hiller Blin, Astrid N., Vicente Vacas, Manuel J., & Weiss, Christian. Transverse charge and magnetization densities: Improved chiral predictions down to b=1 fms. United States.
Alarcon, Jose Manuel, Hiller Blin, Astrid N., Vicente Vacas, Manuel J., and Weiss, Christian. Thu . "Transverse charge and magnetization densities: Improved chiral predictions down to b=1 fms". United States. https://www.osti.gov/servlets/purl/1434237.
@article{osti_1434237,
title = {Transverse charge and magnetization densities: Improved chiral predictions down to b=1 fms},
author = {Alarcon, Jose Manuel and Hiller Blin, Astrid N. and Vicente Vacas, Manuel J. and Weiss, Christian},
abstractNote = {The transverse charge and magnetization densities provide insight into the nucleon’s inner structure. In the periphery, the isovector components are clearly dominant, and can be computed in a model-independent way by means of a combination of chiral effective field theory (cEFT) and dispersion analysis. With a novel N=D method, we incorporate the pion electromagnetic formfactor data into the cEFT calculation, thus taking into account the pion-rescattering effects and r-meson pole. As a consequence, we are able to reliably compute the densities down to distances b1 fm, therefore achieving a dramatic improvement of the results compared to traditional cEFT calculations, while remaining predictive and having controlled uncertainties.},
doi = {},
journal = {Proceedings of Science},
number = ,
volume = QCDEV2017,
place = {United States},
year = {2018},
month = {3}
}

Conference:
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