THE ROLE OF LINEAR ALPHA-CLUSTER CONFIGURATION FOR 12C

In the framework of the Alpha Cluster Model extended calculations of form factors of elastic and inelastic [Formula: see text] and [Formula: see text] (7.66 MeV) electron scattering on 12C were performed. Two possible alpha cluster configurations (linear and triangular) were considered for states assigned to different rotational bands and although the configuration mixture was found to be important for explanation of the inelastic monopole form factor, a fully consistent picture, including all available data, was not obtained.

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Helm model interpretation of 16O form factors: application to pion photoproduction and muon capture

Canadian Journal of Physics ◽

10.1139/p80-009 ◽

1980 ◽

Vol 58 (1) ◽

pp. 48-62 ◽

Cited By ~ 14

Author(s):

R. D. Graves ◽

B. A. Lamers ◽

Anton Nagl ◽

H. Überall ◽

V. Devanathan ◽

...

Keyword(s):

Form Factor ◽

Electron Scattering ◽

Form Factors ◽

Muon Capture ◽

Physical Parameters ◽

Medium Energy ◽

Model Interpretation ◽

Charged Pions ◽

Transition Densities ◽

Energy Processes

The available experimental data for the form factors of the T = 1 levels in 16O, obtained from electron scattering at low (Darmstadt), medium (Tohoku), and high momentum transfer (Stanford), are interpreted by the generalized Helm model. This phenomenological model reduces the form factor description of each level to the listing of a few physical parameters, i.e., the radius and smearing width of the transition densities of charge (current) and magnetization, and their corresponding strength constants. Its parameters having been determined by the form factor fits, the model may then be used to predict the results of other medium energy processes; this is done here for the photoproduction of charged pions and for muon capture in16O.

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Inelastic electric and magnetic electron scattering form factors of 24Mg nucleus: Role of g factors

International Journal of Modern Physics E ◽

10.1142/s021830131750032x ◽

2017 ◽

Vol 26 (05) ◽

pp. 1750032 ◽

Cited By ~ 1

Author(s):

Anwer A. Al-Sammarraie ◽

M. L. Inche Ibrahim ◽

Muna Ahmed Saeed ◽

Fadhil I. Sharrad ◽

Hasan Abu Kassim

Keyword(s):

Experimental Data ◽

Electron Scattering ◽

Form Factors ◽

Wave Functions ◽

Matrix Elements ◽

Model Hamiltonian ◽

Transverse Electron ◽

Magnetic Electron ◽

Good Agreement

The electric and magnetic transitions in the [Formula: see text]Mg nucleus are studied based on the calculations of the longitudinal and the transverse electron scattering form factors. The universal sd-shell model Hamiltonian (USDA) is used for calculations. The wave functions of radial single-particle matrix elements are calculated using the Skyrme potential. For the longitudinal form factors, a good agreement is obtained between the calculations and the experimental data. For the transverse form factors, the effective [Formula: see text] factors are made as adjustable parameters in order to describe the experimental data.

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THE NUCLEON'S MIRROR IMAGE: REVEALING THE STRANGE AND UNEXPECTED

Modern Physics Letters A ◽

10.1142/s0217732303010016 ◽

2003 ◽

Vol 18 (02n06) ◽

pp. 75-84 ◽

Cited By ~ 4

Author(s):

R. D. MCKEOWN

Keyword(s):

Form Factor ◽

Electron Scattering ◽

Strange Quark ◽

Form Factors ◽

Mirror Image ◽

Vector Form ◽

Electromagnetic Structure ◽

Extensive Program ◽

Axial Form ◽

Insight Into

An extensive program of parity-violating electron scattering experiments is providing new insight into the structure of the nucleon. Measurement of the vector form factors enables a definitive study of potential strange quark-antiquark contributions to the nucleon's electromagnetic structure, including the magnetic moment and charge distribution. Recent experimental results have already indicated that effects of strangeness are much smaller than theoretically expected. In addition, the neutral axial form factor appears to display substantial corrections as one might expect from an anapole effect.

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THE BLAST EXPERIMENT: POLARIZED ELECTRON SCATTERING FROM HYDROGEN AND DEUTERIUM

Modern Physics Letters A ◽

10.1142/s0217732309000218 ◽

2009 ◽

Vol 24 (11n13) ◽

pp. 875-880

Author(s):

◽

R. ALARCON

Keyword(s):

Form Factor ◽

Electron Scattering ◽

Form Factors ◽

Proton Form Factor ◽

Beam Source ◽

Polarized Electrons ◽

Deuterium Target ◽

Factor Ratio ◽

Nucleon Form Factors ◽

Large Acceptance

At the MIT-Bates Linear Accelerator Center, the nucleon form factors have been measured by scattering polarized electrons from vector-polarized hydrogen and deuterium. The experiment used the longitudinally polarized electron beam stored in the MIT-Bates South Hall Ring along with an isotopically pure, highly vector-polarized internal atomic hydrogen and deuterium target provided by an atomic beam source. The measurements were carried out with the symmetric Bates Large Acceptance Spectrometer Toroid (BLAST). Results are presented for the proton form factor ratio, [Formula: see text], and for the charge form factor of the neutron, [Formula: see text]. Both results are more precise than previous data in the corresponding Q2 ranges.

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