Dependence of the Odd-Odd Nucleus ¹⁹⁶Au Level Density on the Parameters in Interacting Boson-Fermion-Fermion Model (IBFFM)

• Authors: S. Kabashi , S. Bekteshi , S. Ahmetaj , B. Saramati , V. Veliu
• Languages of publication: EN

Abstracts

EN

The odd-odd nuclei are characterized by a level density which is high already in the low-energy region. This case displays a full complexity of the interwoven shell-model and collective degrees of freedom and thus provides an interesting testing ground for the pattern of nuclear level density. The level density of the odd-odd nucleus ¹⁹⁶Au is investigated in the interacting boson-fermion-fermion model which accounts for collectivity and complex interaction between quasiparticle and collective modes. In the present work, the IBFFM pattern of total and parametric dependent level densities is investigated and compared to the pattern found in previous investigations in the framework of combinatorial, thermodynamic and spectral distribution approaches.

Keywords

EN

21.10.-k; 21.10.Ma; 21.60.-n; 21.60.Fw

Discipline

• 21.10.-k: Properties of nuclei; nuclear energy levels(for properties of specific nuclei listed by mass ranges, see section 27)
• 21.60.-n: Nuclear structure models and methods
• 21.60.Fw: Models based on group theory
• 21.10.Ma: Level density

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 130
• Issue: 1
• Pages: 122-125

Dates

published

2016-07

Contributors

author

S. Kabashi

• University of Prishtina, Department of Physics, Prishtina, Kosovo

author

S. Bekteshi

• University of Prishtina, Department of Physics, Prishtina, Kosovo

author

S. Ahmetaj

• University of Prishtina, Department of Physics, Prishtina, Kosovo

author

B. Saramati

• University of Prishtina, Department of Physics, Prishtina, Kosovo

author

V. Veliu

• University of Prishtina, Department of Electrical Enginering, Prishtina, Kosovo

References

• [1] A. Arima, F. Iachello, Phys. Rev. Lett. 35, 157 (1975), doi: 10.1103/PhysRevLett.35.1069
• [2] F. Iachello, A. Arima, The Interacting Boson Model Cambridge, Cambridge U.P., New York 1987, doi: 10.1007/978-1-4613-9892-9
• [3] A. Arima, F. Iachello, Ann. Phys. (New York) 99, 253 (1976), doi: 10.1007/978-1-4613-9892-9
• [3a] A. Arima, F. Iachello, Ann. Phys. (New York) 111, 201 (1978), doi: 10.1016/0003-4916(78)90228-2
• [3b] A. Arima, F. Iachello, Ann. Phys. (New York) 123, 468 (1979), doi: 10.1016/0003-4916(79)90347-6
• [4] D. Bucurescu, D. Barneoud, G.H. Gata-Daniel, T. von Egidy, J. Genevy, A. Gizon, J. Gizon, C.F. Liang, P. Paris, B. Weiss, S. Brant, V. Paar, R. Pezer, Nucl. Phys. A 587, 475 (1995), doi: 10.1016/0375-9474(95)00048-6
• [5] R. Stokstad, in: Treatise on Heavy-Ion Science, Ed. D.A. Bromley, Vol. III, Plenum Press, New York 1985, p. 83, doi: 10.1007/978-1-4615-8100-0
• [6] F.K. Thielemann, M. Audouze, J.W. Truran, in: Advances in Nuclear Astrophysics, Eds. M. Chize, J.P. Tran, J. Thanh Van, Editions Frontieres, Gif-sur-Yvette 1987, p. 525
• [7] T. Von Egidy, A.N. Behkami, H.H. Schmidt, Nucl. Phys. A 454, 109 (1986), doi: 10.1016/0375-9474(86)90150-8
• [7a] T. Von Egidy, A.N. Behkami, H.H. Schmidt, Nucl. Phys. A 481, 189 (1988), doi: 10.1016/0375-9474(88)90491-5
• [8] V. Paar, S. Brant, D. Paar, Z. Phys. A 235, 261 (1996), doi: 10.1007/s002180050108
• [9] A. Metz, Spectroscopy of ¹⁹⁶Au and the Concept of Super Symmetry in the Interacting Boson Model, Herbert Utz Verlag, München 2000
• [10] S. Kabashi, S. Bekteshi, AIP Conf. Proc. 899, 535 (2007), doi: 10.1063/1.2733276
• [11] S. Brant, D. Vretenar, V. Paar, Computer code IBFFM
• [12] D.K. Sunko, Phys. Lett. B 201, 7 (1988), doi: 10.1016/0370-2693(88)90069-X
• [13] S. Kabashi, S. Bekteshi, S. Ahmetaj, Z. Shaqiri, Bulg. J. Phys. 36, 255 (2009) http://www.bjp-bg.com/paper.php?id=523
• [14] V. Paar, D.K. Sunko, S. Brant, H.G. Mustafa, R.G. Lanier, Z. Phys. A 345, 343 (1993), doi: 10.1007/BF01282895

Identifiers

DOI

10.12693/APhysPolA.130.122