Study of elastic ?-scattering from2H and12C atE ?=4.2 GeV

Morsch, H. P.; Boivin, M.; Boyard, J. L.; Fuchs, P.; Hennino, T.; Jaeckle, V.; Jourdain, J.C.; Kunne, R.; Murphy, L. Y.; Plouin, F.; Radvanyi, P.; Ramstein, B.; Rousteau, S.; Roy‐Stéphan, M.; Spang, W.; Stoler, P.; Tegnér, P. E.; Żuprański, P.

doi:10.1007/bf01290684

Cited by 9 publications

(3 citation statements)

References 6 publications

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“…The carbon auxiliary density was obtained from the modified harmonic oscillator fit of charge density obtained from electron scattering data [92]. The form found [79,80]. PWA means the partial wave analysis from Ref.…”

Section: B α-12 C Scatteringmentioning

confidence: 99%

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Monte Carlo eikonal scattering

Gibbs

Dedonder

2012

Phys. Rev. C

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Background The eikonal approximation is commonly used to calculate heavy-ion elastic scattering. However, the full evaluation has only been done (without the use of Monte Carlo techniques or additional approximations) for α − α scattering.Purpose Develop, improve and test the Monte Carlo eikonal method for elastic scattering over a wide range of nuclei, energies and angles.Method Monte Carlo evaluation is used to calculate heavy-ion elastic scattering including the center-of-mass correction and the Coulomb interaction.Results Angular distributions are presented for a number of nuclear pairs over a wide energy range using nucleon-nucleon scattering parameters taken from phase-shift analyses and densities from independent sources. A technique for the efficient expansion of the Glauber amplitude in partial waves is developed. ConclusionThe center-of-mass and Coulomb corrections are essential. Angular distributions can be predicted only up to certain angles which vary with the nuclear pairs but all correspond to a momentum transfer near 1 fm −1 .

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Section: B α-12 C Scatteringmentioning

confidence: 99%

“…12: α− 12 C scattering at 4.2 GeV showing the variation with the parameter ρ. The data are from Morsch et al [79,80]. PWA means the partial wave analysis from Ref.…”

Section: B α-12 C Scatteringmentioning

confidence: 99%

Monte Carlo eikonal scattering

Gibbs

Dedonder

2012

Phys. Rev. C

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“…Elastic scattering between two composite particles at high energies is always one of the powerful tools to investigate the structure of their constituents. The experimental results of such interactions showed that the angular distributions measured at small scattering angles exhibit the trend of diffraction pattern resulting from the multiple scattering between the constituents of composite particles [1][2][3][4][5][6][7][8][9][10][11][12][13]. Furthermore, at large momentum transfers ( ) ,the differential cross sections decay to values many orders of magnitude smaller than those in the forward direction [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Quark-Hadron Model for Elastic scattering between two-composite systems at relativistic energies

El-Gogary

2021

Arab Journal of Nuclear Sciences and Applications

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The author of the present study has previously developed formulas to calculate the full Glauber series of the elastic scattering between two composite systems. Their structures are pictured as a bag of quarks or as a cluster of nucleons. In this work, a hybrid model in which the quark-hadron pictures are combined was constructed. The elastic cross sections of alpha-proton at center of mass energy √ = and alpha-alpha at √ = are evaluated by the hybrid model, the pure quark and conventional nucleon models. The results of different approaches are compared with the experimental data. The comparison shows that the predictions of the three model are identical at forward scattering angles and are significantly different at large momentum transfers. At large angles, the hybrid model calculation fits very well the experimental data when compared the calculations of quark and nucleon models. The nucleon model prediction provides a better agreement with the data than the quark model calculation. The improvement achieved by the hybrid model over the quark model, at large scattering angles, shows that the inclusion of quark-quark interactions is more consistent when the separation between the colliding nucleons is less than the hadron core.

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