Abstract
We use a large-scale 6(Latin small letter h with stroke)Ω calculation for 6Li with microscopically derived two-body interaction to construct the 0(Latin small letter h with stroke)Ω 0p shell effective Hamiltonian, electric quadrupole, and magnetic dipole operators. While the E2 and M1 6(Latin small letter h with stroke)Ω operators are one-body operators with free nucleon charges, the effective operators are two-body operators with substantially different renormalization for the isoscalar and isovector matrix elements, especially for the E2 operator. We show that these operators can be very well approximated by one-body operators provided that effective proton and neutron charges are used. The obtained effective charges are compatible with those used in phenomenological shell-model studies. The two-body part of the effective operators is estimated.
| Original language | English (US) |
|---|---|
| Journal | Physical Review C - Nuclear Physics |
| Volume | 55 |
| Issue number | 2 |
| State | Published - Feb 1997 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
- Nuclear and High Energy Physics
Cite this
Microscopic origins of effective charges in the shell model. / Navrátil, Petr; Thoresen, Michael; Barrett, Bruce R.
In: Physical Review C - Nuclear Physics, Vol. 55, No. 2, 02.1997.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Microscopic origins of effective charges in the shell model
AU - Navrátil, Petr
AU - Thoresen, Michael
AU - Barrett, Bruce R
PY - 1997/2
Y1 - 1997/2
N2 - We use a large-scale 6(Latin small letter h with stroke)Ω calculation for 6Li with microscopically derived two-body interaction to construct the 0(Latin small letter h with stroke)Ω 0p shell effective Hamiltonian, electric quadrupole, and magnetic dipole operators. While the E2 and M1 6(Latin small letter h with stroke)Ω operators are one-body operators with free nucleon charges, the effective operators are two-body operators with substantially different renormalization for the isoscalar and isovector matrix elements, especially for the E2 operator. We show that these operators can be very well approximated by one-body operators provided that effective proton and neutron charges are used. The obtained effective charges are compatible with those used in phenomenological shell-model studies. The two-body part of the effective operators is estimated.
AB - We use a large-scale 6(Latin small letter h with stroke)Ω calculation for 6Li with microscopically derived two-body interaction to construct the 0(Latin small letter h with stroke)Ω 0p shell effective Hamiltonian, electric quadrupole, and magnetic dipole operators. While the E2 and M1 6(Latin small letter h with stroke)Ω operators are one-body operators with free nucleon charges, the effective operators are two-body operators with substantially different renormalization for the isoscalar and isovector matrix elements, especially for the E2 operator. We show that these operators can be very well approximated by one-body operators provided that effective proton and neutron charges are used. The obtained effective charges are compatible with those used in phenomenological shell-model studies. The two-body part of the effective operators is estimated.
UR - http://www.scopus.com/inward/record.url?scp=0041194683&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0041194683&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0041194683
VL - 55
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
SN - 0556-2813
IS - 2
ER -