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(New page: Please add below your talk abstract. == '''Title of the talk''' == '''Author''' ''Address'' Abstract Abstract Abstract Abstract '''References''' [1] [2] == '''Title of the talk''...) |
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| − | + | '''The Selfconsistent Quasiparticle RPA and Its Description of Thermal Pairing Properties in Nuclei''' | |
| − | |||
| − | + | Nguyen Dinh Dang | |
| − | '' | + | ''1 - Heavy-Ion Nuclear Physics Laboratory, |
| + | ''Nishina Center for Accelerator-Based Science'' | ||
| + | ''RIKEN 2-1 Hirosawa, Wako city, 351-0198 Saitama, Japan'' | ||
| − | + | ''2 - Institute for Nuclear Science and Techniques, Vietnam Atomic Energy Commission'' | |
| + | ''Hanoi - Vietnam'' | ||
| − | |||
| − | [1] | + | The Selfconsistent Quasiparticle RPA (SCQRPA) is constructed [1] to study the effects of fluctuations on pairing properties in finite systems. |
| + | The theory is applied to nuclei at finite temperature [2] and angular momentum [3]. Particle number projection is taken into account within the Lipkin-Nogami method. | ||
| + | Several issues such as the smoothing of superfluid-normal phase transition, thermally assisted pairing in hot rotating nuclei, extraction of the nuclear pairing gap using an | ||
| + | improved odd-even mass difference are discussed [4]. Finally, a novel approach of embedding the projected SCQRPA eigenvalues in the canonical ensemble (CE) is proposed (the CE-SCQRPA) [5]. Applied to a doubly-folded equidistant multilevel pairing model, the proposed CE-SCQRPA produces results in good agreement with those obtained by using the exact eigenvalues, whenever the latter are possible, and is workable also for large values of particle number (N>14), where the diagonalisation of the pairing Hamiltonian is impracticable. | ||
| − | |||
| − | + | ''References'' | |
| − | + | [1] N. Quang Hung and N. Dinh Dang,
Phys. Rev. C 76 (2007) 054302 and 77 (2008) 029905(E). | |
| − | + | [2] N. Dinh Dang and N. Quang Hung,
Phys. Rev. C 77 (2008) 064315. | |
| − | + | [3] N. Quang Hung and N. Dinh Dang,
Phys. Rev. C 78 (2008) 064315. | |
| − | + | [4] N. Quang Hung and N. Dinh Dang,
Phys. Rev. C 79 (2009) 054328. | |
| − | [ | + | [5] N. Quang Hung and N. Dinh Dang, in preparation |
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Version du 1 décembre 2009 à 03:43
The Selfconsistent Quasiparticle RPA and Its Description of Thermal Pairing Properties in Nuclei
Nguyen Dinh Dang
1 - Heavy-Ion Nuclear Physics Laboratory, Nishina Center for Accelerator-Based Science RIKEN 2-1 Hirosawa, Wako city, 351-0198 Saitama, Japan
2 - Institute for Nuclear Science and Techniques, Vietnam Atomic Energy Commission Hanoi - Vietnam
The Selfconsistent Quasiparticle RPA (SCQRPA) is constructed [1] to study the effects of fluctuations on pairing properties in finite systems.
The theory is applied to nuclei at finite temperature [2] and angular momentum [3]. Particle number projection is taken into account within the Lipkin-Nogami method.
Several issues such as the smoothing of superfluid-normal phase transition, thermally assisted pairing in hot rotating nuclei, extraction of the nuclear pairing gap using an
improved odd-even mass difference are discussed [4]. Finally, a novel approach of embedding the projected SCQRPA eigenvalues in the canonical ensemble (CE) is proposed (the CE-SCQRPA) [5]. Applied to a doubly-folded equidistant multilevel pairing model, the proposed CE-SCQRPA produces results in good agreement with those obtained by using the exact eigenvalues, whenever the latter are possible, and is workable also for large values of particle number (N>14), where the diagonalisation of the pairing Hamiltonian is impracticable.
References
[1] N. Quang Hung and N. Dinh Dang, Phys. Rev. C 76 (2007) 054302 and 77 (2008) 029905(E).
[2] N. Dinh Dang and N. Quang Hung, Phys. Rev. C 77 (2008) 064315.
[3] N. Quang Hung and N. Dinh Dang, Phys. Rev. C 78 (2008) 064315.
[4] N. Quang Hung and N. Dinh Dang, Phys. Rev. C 79 (2009) 054328.
[5] N. Quang Hung and N. Dinh Dang, in preparation