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Title: Covariant spectator theory of n p scattering: Deuteron form factors

Abstract

The deuteron form factors are calculated using two model wave functions obtained from the 2007 CST high precision fits to $np$ scattering data. Included in the calculation are a new class of isoscalar $np$ interaction currents which are automatically generated by the nuclear force model used in these fits. If the nuclear model WJC2 is used, a precision fit ($$\chi^2$$/datum $$\eqsim1$$) to the Sick Global Analysis (GA) of all $ed$ elastic scattering data can be obtained by adjusting the unknown off-shell nucleon form factors $$F_3(Q^2)$$ (discussed before) and $$F_4(Q^2)$$ (introduced in this paper), and predicting the high $Q^2$ behavior of the neutron charge form factor $$G_{En}(Q^2)$$ well beyond the region where it has been measured directly. Relativistic corrections, isoscalar interaction currents, and off-shell effects are defined, discussed, and their size displayed. A rationale for extending $ed$ elastic scattering measurements to higher $Q^2$ is presented.

Authors:
ORCiD logo
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1598487
Alternate Identifier(s):
OSTI ID: 1596896
Report Number(s):
JLAB-THY-19-3022; DOE/OR/23177-4769; arXiv:1908.09421
Journal ID: ISSN 2469-9985; PRVCAN
Grant/Contract Number:  
AC05-06OR23177
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 101; Journal Issue: 2; Journal ID: ISSN 2469-9985
Country of Publication:
United States
Language:
English

Citation Formats

Gross, Franz. Covariant spectator theory of np scattering: Deuteron form factors. United States: N. p., 2020. Web. doi:10.1103/PhysRevC.101.024001.
Gross, Franz. Covariant spectator theory of np scattering: Deuteron form factors. United States. doi:10.1103/PhysRevC.101.024001.
Gross, Franz. Sat . "Covariant spectator theory of np scattering: Deuteron form factors". United States. doi:10.1103/PhysRevC.101.024001.
@article{osti_1598487,
title = {Covariant spectator theory of np scattering: Deuteron form factors},
author = {Gross, Franz},
abstractNote = {The deuteron form factors are calculated using two model wave functions obtained from the 2007 CST high precision fits to $np$ scattering data. Included in the calculation are a new class of isoscalar $np$ interaction currents which are automatically generated by the nuclear force model used in these fits. If the nuclear model WJC2 is used, a precision fit ($\chi^2$/datum $\eqsim1$) to the Sick Global Analysis (GA) of all $ed$ elastic scattering data can be obtained by adjusting the unknown off-shell nucleon form factors $F_3(Q^2)$ (discussed before) and $F_4(Q^2)$ (introduced in this paper), and predicting the high $Q^2$ behavior of the neutron charge form factor $G_{En}(Q^2)$ well beyond the region where it has been measured directly. Relativistic corrections, isoscalar interaction currents, and off-shell effects are defined, discussed, and their size displayed. A rationale for extending $ed$ elastic scattering measurements to higher $Q^2$ is presented.},
doi = {10.1103/PhysRevC.101.024001},
journal = {Physical Review C},
number = 2,
volume = 101,
place = {United States},
year = {2020},
month = {2}
}

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