dorsal/arxiv
View SchemaEffective Vector Meson Masses in a Cutoff Field Theory
| Authors | K. Sakamoto, M. Nakai, H. Kouno, A. Hasegawa, M. Nakano |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9909054 |
| URL | https://arxiv.org/abs/nucl-th/9909054 |
| DOI | 10.1142/S0218301300000106 |
| Journal | Int.J.Mod.Phys. E9 (2000) 169-183 |
Abstract
Based on quantum hadrodynamics with a finite cutoff, the effective masses of vector mesons(\omega, \rho) in nuclear medium are calculated. We use a low-energy effective Lagrangian which is obtained by integrating high-energy quantum fluctuations. Although we use an artificial cutoff, the cutoff-dependence can be removed order by order. It is shown that there is a strong correlation between the effective \omega -meson mass and the effective nucleon mass at the normal density. It is also found that the effective \rho-meson mass m_\rho^* decreases as density increases. The rate of the decrease becomes smaller at high density. As a result, at the normal density, the m^*_\rho/m_\rho is 0.85 \sim 0.95.
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"abstract": "Based on quantum hadrodynamics with a finite cutoff, the effective masses of\nvector mesons(\\omega, \\rho) in nuclear medium are calculated. We use a\nlow-energy effective Lagrangian which is obtained by integrating high-energy\nquantum fluctuations. Although we use an artificial cutoff, the\ncutoff-dependence can be removed order by order. It is shown that there is a\nstrong correlation between the effective \\omega -meson mass and the effective\nnucleon mass at the normal density. It is also found that the effective\n\\rho-meson mass m_\\rho^* decreases as density increases. The rate of the\ndecrease becomes smaller at high density. As a result, at the normal density,\nthe m^*_\\rho/m_\\rho is 0.85 \\sim 0.95.",
"arxiv_id": "nucl-th/9909054",
"authors": [
"K. Sakamoto",
"M. Nakai",
"H. Kouno",
"A. Hasegawa",
"M. Nakano"
],
"categories": [
"nucl-th"
],
"doi": "10.1142/S0218301300000106",
"journal_ref": "Int.J.Mod.Phys. E9 (2000) 169-183",
"title": "Effective Vector Meson Masses in a Cutoff Field Theory",
"url": "https://arxiv.org/abs/nucl-th/9909054"
},
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