Elastic electron-deuteron scattering at high energy

Arnold, R. G.; Carlson, Carl E.; Gross, Franz

doi:10.1103/physrevc.21.1426

Cited by 218 publications

(199 citation statements)

References 47 publications

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“…The latter correction µ 2 d /2M 2 p = 0.0163 fm 2 arises, since the longitudinal structure function A(Q 2 ) is built up from the charge monopole, charge quadrupole and magnetic dipole form factors F ch (Q 2 ), F q (Q 2 ) and F m (Q 2 ) according to A(Q 2 ) = F 2 ch (Q 2 ) + Q 4 /18 F 2 q (Q 2 ) + Q 2 /6M 2 p F 2 m (Q 2 ) [11]; the form factors are considered in the Breit frame in which Q 2 = −q 2 , q being the four-momentum transfer. The charge quadrupole and the magnetic dipole form factors are normalized to the deuteron quadrupole moment in units of fm 2 and to the deuteron magnetic moment in units of µ N , respectively.…”

Section: Experimental Data and Their Analysesmentioning

confidence: 99%

Meson and Quark Degrees of Freedom and the Radius of the Deuteron

1996

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The existing experimental data for the deuteron charge radius are discussed. The data of elastic electron scattering are inconsistent with the value obtained in a recent atomic physics experiment. Theoretical predictions based on a nonrelativistic description of the deuteron with realistic nucleon-nucleon potentials and with a rather complete set of meson-exchange contributions to the charge operator are presented. Corrections arising from the quark-gluon substructure of the nucleon are explored in a nonrelativistic quark model; the quark-gluon corrections, not accounted for by meson exchange, are small. Our prediction for the deuteron charge radius favors the value of a recent atomic physics experiment.

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Section: Experimental Data and Their Analysesmentioning

confidence: 99%

Meson and Quark Degrees of Freedom and the Radius of the Deuteron

1996

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“…7 Paris potential [124] for the deuteron wavefunction. 8 Relativistic corrections by Arnold, Carlson, and Gross [125]. 9 MEC corrections by Mosconi and Ricci [126].…”

Section: Unpolarized Results For Gen and Gmnmentioning

confidence: 99%

The neutron electric form factor to Q² = 1.45 (GeV/c)²

Plaster¹

2004

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The nucleon elastic electromagnetic form factors are fundamental quantities needed for an understanding of nucleon and nuclear electromagnetic structure. The evolution of the Sachs electric and magnetic form factors with Q 2 , the square of the fourmomentum transfer, is related to the distribution of charge and magnetization within the nucleon. High precision measurements of the nucleon form factors are essential for stringent tests of our current theoretical understanding of confinement within the nucleon.Measurements of the neutron form factors, in particular, those of the neutron electric form factor, have been notoriously difficult due to the lack of a free neutron target and the vanishing integral charge of the neutron. Indeed, a precise measurement of the neutron electric form factor has eluded experimentalists for decades; however, with the advent of high duty-factor polarized electron beam facilities, experiments employing polarization degrees of freedom have finally yielded the first precise measurements of this fundamental quantity.Following a general overview of the experimental and theoretical status of the nucleon form factors, a detailed description of an experiment designed to extract the neutron electric form factor from measurements of the neutron's recoil polarization in quasielastic 2 H(e, e')lH scattering is presented. The experiment described here employed the Thomas Jefferson National Accelerator Facility's longitudinally polarized electron beam, a magnetic spectrometer for detection of the scattered electron, and a neutron polarimeter designed specifically for this experiment. Measurements were conducted at three Q 2 values of 0.45, 1.13, and 1.45 (GeV/c) 2 , and the final results extracted from an analysis of the data acquired in this experiment are reported and compared with recent theoretical predictions for the nucleon form factors. Next, I would like to thank those who I credit most for my development: Jim Kelly and Andrei Semenov. At times, I found Jim's extremely high standards and desire for rigor to be exasperating, especially during the development of our simulation code and discussions of formalism (e.g., the "dreaded" Wigner rotation!), but, in retrospect, I am glad that I was constantly challenged to do something in an even better way and never permitted to give up. Indeed, I didn't fully appreciate the rigor of our analysis until our results were final, but hindsight is always 20/20. Also, I thank Jim for numerous comments and suggestions on this thesis; it is much better and much more complete because of his many suggestions. Andrei was the true guru (read: czar) of our analysis efforts, and he instilled in me the importance of careful work.I especially appreciate Andrei's timely responses to the numerous questions I always had concerning the analysis and the various analysis tools that we used; if there was someone who was sure to know the answer, that person was Andrei. Without Andrei, our analysis efforts would never have gotten off the ground. I also offer thank...

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“…To do this let us write the parameterization of the electromagnetic current matrix element in the Breit frame (see, e.g., [16]):…”

Section: Electroweak Characteristics Of ρ-Meson and Numerical Calculamentioning

confidence: 99%

“…The magnetic moment μ ρ and the quadrupole moment Q ρ of ρ meson were calculated using the relations given in [16]:…”

Section: Electroweak Characteristics Of ρ-Meson and Numerical Calculamentioning

confidence: 99%

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Electroweak properties ofρ-meson in the instant form of relativistic quantum mechanics

2017

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Abstract. Charge and magnetic radii, magnetic and quadrupole moments of the ρ-meson are calculated in framework of the developed by authors version of the instant form of relativistic quantum mechanics with fixed number of particles (IF RQM). The calculations are performed with different wave functions of quarks in the ρ-meson and using the so-called modified impulse approximation (MIA). The electromagnetic characteristics of ρ-meson are obtained without fitting parameters. The value of the magnetic moment coincides with available experimental data: μ ρ = 2.1 ± 0.5 e/2M ρ .

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Elastic electron-deuteron scattering at high energy

Cited by 218 publications

References 47 publications

Meson and Quark Degrees of Freedom and the Radius of the Deuteron

Meson and Quark Degrees of Freedom and the Radius of the Deuteron

The neutron electric form factor to Q² = 1.45 (GeV/c)²

Electroweak properties ofρ-meson in the instant form of relativistic quantum mechanics

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