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Abstract:
We have extracted the nuclear asymptotic normalization coefficients for the virtual transitions 12B 11B+n and 13C 12C+n via two transfer reactions 11B(d,p) 12B and 12C(d, p) 13C. With these coefficients, root-mean-square radii for the valence neutron in 12B and 13C have been calculated. Our results show that the second (Jπ=2-), third (Jπ=1-) excited states in 12B, and the first (Jπ=1/2+) excited state in 13C are neutron halo states, whereas the third (Jπ=5/2+) excited state in 13C is a neutron skin state. The retard effects of the Coulomb potential and the orbital angular momentum on halo formation have been quantitatively examined. A unified scaling law for the mean-square radius versus the effective nucleon separation energy is established for the systems with a neutron or proton in a weekly bound state.
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References
[1]
|
. XU H M, Gagliardi C A, Tribble R E et al. Phys. Rev. Lett.,1994,73:2027 2. Mukhamedzhanov A M, Gagliardi G A, Tribble R E. Phys. Rev.,2000,C63:0246121 3. Goddard R P, Knutson L D, Tostevin J A. Phys. Lett.,1982,B118:241 4. Griffith J A R, Irshad M, Karban O et al. Nucl. Phys.,1971,A167:875. Goncharov S A, Gulamov I R, Romanovsky E A et al. J. Phys. G :Nucl. Part. Phys.,1989,15:1431 6. Fortune H T, Vincent C M. Phys. Rev.,1969,185:1401 7. Blokhintsev L D, Borbely I, Dolinskii Sov. J. Part. Nucl.,1997,8:485 8. Baye D, Descouvemont P, Timofeyuk N K. Nucl. Phys.,1994,A577:624 9. Timofeyok N K. Nucl. Phys.,1998,A632:19 10. Hansen P G, Jensen A S, Jonson B. Ann. Rev. Nucl. Part. Sci.,1995,45:591br11.Fedorov D V, Jensen A S, Riisager K. Phys. Lett.,1995,B312:1 |
-
[1] |
YE Wei
. Possible Dependence of Dissipation Strength on Angular Momentum. Chinese Physics C,
2006, 30(8): 759-760. |
[2] |
Guo Hua
. In-medium QMC Model Parameters and Quark Condensation in Nuclear Matter. Chinese Physics C,
1999, 23(5): 459-468. |
[3] |
Li Yangguo
. Antiproton -Nucleus Charge Exchange Reaction and Inelastic Scattering. Chinese Physics C,
1996, 20(11): 1021-1027. |
[4] |
HOU Ren-Chang
, ZHAO Xuan
. QUADRUPOLE-OCTUPOLE TWO-PHONON EXCITATIONS IN INELASTIC SCATTERING. Chinese Physics C,
1983, 7(2): 236-244. |
[5] |
Sa Ben-hao
, Zhang Xi-zhen
, Li Zhu-xia
, Shi Yi-jin
. A PRIMARY RESEARCH OF THE PHONON RENORMALIZATION OF NUCLEAR FIELD THEORY. Chinese Physics C,
1980, 4(3): 398-400. |
[6] |
WU SHI-SHU
. ON NUCLEAR SINGLE-PARTICLE POTENTIALS(Ⅲ)SINGLEPARTICLE ENERGIES DETERMINED BY THE NONHERMITIAN POTENTIAL Uαβ=Mαβ(εβ). Chinese Physics C,
1979, 3(4): 469-483. |
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