Study of Soft Quadrupole Excitation in Nucleus <SUP>11</SUP>Li within Test Particle Method

Cai Yanhuang

Chinese Physics C> 1994, Vol. 18> Issue(S1) : 81-86

Study of Soft Quadrupole Excitation in Nucleus ¹¹Li within Test Particle Method

Cai Yanhuang ^,

Institute of Nuclear Research,Academia Sinica, Shanghai 201800

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Abstract：
The quadrupole excitations in nucleus ¹¹Li have been studied within the nuclear Vlasov equation approach.The classical phase space distribution function is given by the test particle propagation method.A soft mode of quadrupole excitation located around 2MeV is found.The total percent of E2 energy-Weighted sum rule (EWSR) exhausted in this soft resonance region is very sensitive to the extension of neutron halo in nucleus ¹¹Li.The results compared with other recent calculations are analyzed.

References

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T. Kobavshi et al., Phys. Lett., B232 (1989) 51. I. Tanihata, Nucl. Phys., A488 (1988) 113c.[2] M. S. Hussein et al., Phys. Reports, 201 (1991) 280. P. G. Hansen and B. Johnson, Europhys. Lett., 4 (1989) 409. G. Bertsch and J. Fozwell, Phys. Rev., C41 (1990) 1300.[3] S. A. Fayans, Phys. Lett., B267 (1991) 443.[4] H. Sagawa, Nucl. Phys., A538 (1992) 619c. H. Sagawa, Contribution to "First joint Italian-Japanese meeting on perspectives in heavy ion Physics", Sept,1992, Catania, Italy.[5] P. Ring and P. Schuck, "The Nuclear Many-Body Problem", (Springer Berlin, 1980) p.314[6] M. Di Toro and Cai Yanhuang, Phys. Rev., C42 (1990) 2748[7] Cai Yanhuang, High Energy Phys. and Nuclear Phys,9 (1993) 839.[8] C. Y. Wong, Phys. Rev., C25.(1982) 1461.[9] D. M. Brink et al., Nucl. Phys., A456 (1986) 205.

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Cai Yanhuang. Study of Soft Quadrupole Excitation in Nucleus ¹¹Li within Test Particle Method[J]. Chinese Physics C, 1994, 18(S1): 81-86.

Cai Yanhuang. Study of Soft Quadrupole Excitation in Nucleus ¹¹Li within Test Particle Method[J]. Chinese Physics C, 1994, 18(S1): 81-86. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of Soft Quadrupole Excitation in Nucleus ¹¹Li within Test Particle Method

Cai Yanhuang ^,

Corresponding author: Cai Yanhuang,

Institute of Nuclear Research,Academia Sinica, Shanghai 201800

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1994-06-15

Abstract: The quadrupole excitations in nucleus ¹¹Li have been studied within the nuclear Vlasov equation approach.The classical phase space distribution function is given by the test particle propagation method.A soft mode of quadrupole excitation located around 2MeV is found.The total percent of E2 energy-Weighted sum rule (EWSR) exhausted in this soft resonance region is very sensitive to the extension of neutron halo in nucleus ¹¹Li.The results compared with other recent calculations are analyzed.