dorsal/arxiv
View SchemaNew approach to $^4$He charge distribution
| Authors | L. Wilets, M. A. Alberg, S. Pepin, Fl. Stancu, J. Carlson, W. Koepf |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9612060 |
| URL | https://arxiv.org/abs/nucl-th/9612060 |
| DOI | 10.1103/PhysRevC.56.486 |
| Journal | Phys. Rev. C56 (1997) 486 |
Abstract
We present a study of the $^4$He charge distribution based on realistic nucleonic wave functions and incorporation of the nucleon's quark substructure. The central depression of the proton point density seen in modern four-body calculations is too small by itself to lead to a correct description of the charge distribution. We utilize six-quark structures calculated in the Chromodielectric Model for N-N interactions, and we find a swelling of the proton charge distribution as the internucleon distance decreases. These charge distributions are combined with the $^4$He wave function using the Independent Pair Approximation and two-body distributions generated from Green's Function Monte Carlo calculations. We obtain a reasonably good fit to the experimental charge distribution without including meson exchange currents.
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"abstract": "We present a study of the $^4$He charge distribution based on realistic\nnucleonic wave functions and incorporation of the nucleon\u0027s quark substructure.\nThe central depression of the proton point density seen in modern four-body\ncalculations is too small by itself to lead to a correct description of the\ncharge distribution. We utilize six-quark structures calculated in the\nChromodielectric Model for N-N interactions, and we find a swelling of the\nproton charge distribution as the internucleon distance decreases. These charge\ndistributions are combined with the $^4$He wave function using the Independent\nPair Approximation and two-body distributions generated from Green\u0027s Function\nMonte Carlo calculations. We obtain a reasonably good fit to the experimental\ncharge distribution without including meson exchange currents.",
"arxiv_id": "nucl-th/9612060",
"authors": [
"L. Wilets",
"M. A. Alberg",
"S. Pepin",
"Fl. Stancu",
"J. Carlson",
"W. Koepf"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.56.486",
"journal_ref": "Phys. Rev. C56 (1997) 486",
"title": "New approach to $^4$He charge distribution",
"url": "https://arxiv.org/abs/nucl-th/9612060"
},
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