Description of polarization data for deuteron photodisintegration at photon energies in the range E γ = 1.5–2.5 GeV on the basis of the Moscow potential of NN interaction

Knyr, V. A.; Неудачин, В.Г.; Khokhlov, N. A.

doi:10.1134/s1063778807120174

Cited by 5 publications

(3 citation statements)

References 6 publications

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“…Present paper is an extension of our previous investigations where we described elastic N N scattering up to 3 GeV of laboratory energy [22], bremsstrahlung in the pp scattering pp → ppγ [23], photodisintegration of deuteron γD → np [24][25][26] exclusive electrodisintegration of deuteron [27]. Here we show that the developed approach is applicable to the elastic eD scattering.…”

Section: Introductionmentioning

confidence: 54%

Electromagnetic deuteron form factors in point form relativistic quantum mechanics

Khokhlov¹

2015

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A study of the electromagnetic structure of the deuteron in the framework of relativistic quantum mechanics is presented. The deuteron form factors dependencies on the transferred 4-momentum Q up to 7.5 Fm −1 are calculated. We compare results obtained by different realistic deuteron wave functions stemming from Nijmegen-I, Nijmegen-II, JISP16, CD-Bonn, Paris and Moscow (with forbidden states) potentials. The nucleon form factors parametrization consistent with the modern experimental analysis was used as the input data.

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Section: Introductionmentioning

confidence: 54%

Electromagnetic deuteron form factors in point form relativistic quantum mechanics

Khokhlov¹

2015

Preprint

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“…The question is discussed in the last part of the paper. In this paper we extend our previous investigations where we described elastic N N scattering up to 3 GeV of laboratory energy [22], and electromagnetic reactions with two nucleons: bremsstrahlung in the pp scattering pp → ppγ [23], photodisintegration of deuteron γD → np [24][25][26], exclusive electrodisintegration of deuteron [27] and the eD elastic scattering [28,29]. We apply manifestly covariant relativistic quantum mechanics (RQM) [30] in point-form (PF).…”

Section: Introductionmentioning

confidence: 88%

The deuteron wave function and neutron form factors from the elastic electron deuteron scattering

Khokhlov¹

2016

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A study of the deuteron structure in the framework of relativistic quantum mechanics is presented. Point-form (PF) relativistic quantum mechanics (RQM) is applied to the elastic eD scattering. The deuteron wave function and neutron form factors are fitted to the electromagnetic deuteron form factors. We also compare results obtained by different realistic deuteron wave functions stemming from Nijmegen-I, Nijmegen-II, JISP16, CD-Bonn, Paris, Argonne, Idaho and Moscow (with forbidden states) potentials. It is shown that the electromagnetic deuteron form factors may be described without exchange currents.

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“…Recent photodisintegration data can be found in [26][27][28][29], and for electrodisintegration data, in [17,18,[30][31][32][33]. Other analyses of deuteron processes include hidden-color contributions to deuteron form factors [34], the hard rescattering mechanism [35], quark-gluon strings [36], the Moscow NN potential [37], and AdS/QCD models [38,39].…”

Section: Introductionmentioning

confidence: 99%

Reduced nuclear helicity amplitudes for deuteron electrodisintegration and other processes

Flores¹,

Chabysheva²,

Hiller³

2023

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We extend the original idea of reduced nuclear amplitudes to capture individual helicity amplitudes and discuss various applications to exclusive processes involving the deuteron. Specifically, we consider deuteron form factors, structure functions, tensor polarization observables, photodisintegration, and electrodisintegration. The basic premise is that nuclear processes at high momentum transfer can be approximated by tree graphs for point-like nucleons supplemented by empirical form factors for each nucleon. The latter represent the internal structure of the nucleon, and incorporate nonperturbative physics, which can allow for early onset of scaling behavior. The nucleon form factors are evaluated at the net momentum transfer experienced by the given nucleon, with use of G E for a no-flip contribution and G M for a helicity-flip contribution. Results are compared with data where available. The deuteron photodisintegration asymmetry Σ is obtained with a value of Σ(90 • ) ≃ −0.06, which is much closer to experiment than the value of -1 originally expected. The method also provides an estimate of the momentum transfer values required for scaling onset. We find that the deuteron structure function B is a good place to look, above momentum transfers of 10 GeV 2 .From these we can calculate the various observables. Plots of the results and recent data [48][49][50] are given in Figs. 14,15,16,and 17. Because the tree-level amplitudes are real, P y is automatically zero. That C x ′ is of order m/ √ s, rather than zero, is a correction to hadron helicity conservation [51]. Also, we find the asymmetry Σ(90 • ) to be approximately -0.06, rather than the nominal expectation [52] of -1. In general, the trends with photon energy seem to be modestly consistent with data.

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Description of polarization data for deuteron photodisintegration at photon energies in the range E γ = 1.5–2.5 GeV on the basis of the Moscow potential of NN interaction

Cited by 5 publications

References 6 publications

Electromagnetic deuteron form factors in point form relativistic quantum mechanics

Electromagnetic deuteron form factors in point form relativistic quantum mechanics

The deuteron wave function and neutron form factors from the elastic electron deuteron scattering

Reduced nuclear helicity amplitudes for deuteron electrodisintegration and other processes

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