Description of the yrast superdeformed bands in even-even nuclei in A ∼∼\sim 190 region using the nuclear softness model

Ali KHALAF; Karima ABDELMAGEED; Manal SIRAG

Makale detayları

Description of the yrast superdeformed bands in even-even nuclei in A ∼∼\sim 190 region using the nuclear softness model

Yazarlar:

Ali KHALAF | Karima ABDELMAGEED | Manal SIRAG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2015 Vol.39 Issue 2, pp.178-186

Belge Tipi:

Makale

Yayın Tarihi:

8/2015

Belge Dili:

Türkçe

Document ID (Org No.):

2000759891

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Anahtar kelimeler:

Özet:

 

A two-parameter nuclear softness (NS2) model for the transition energies is   proposed by treating the variation of the moment of inertia with spin. The   model has been applied to the yrast superdeformed (SD) bands in even-even   nuclei in the mass region A ∼∼\sim  190. The model parameters have been   determined from the fitting procedure in order to minimize the relative root   mean square deviation between the experimental E2 transition γγ\gamma -ray   energies and the calculated ones. The basic experimental data on SD bands   are given in the form of a series of γγ\gamma -ray transitional energies and   the spins were determined in our previous works. The excellent agreement   between the theory and the experiment give good support to the model. The   presence of identical bands between the two isotopes 192192^{192}Hg and   194194^{194}Pb is investigated because their differences in γγ\gamma -ray   energies are small and constant up to rotational frequency ℏω∼ℏω∼{\mathcal \hbar}\omega  \sim    0.25 MeV. Our analysis also leads to the appearance of ΔΔ\Delta I = 2   staggering effect in 194194^{194}Hg (SD1). A comment on equilibrium deformation   for each nucleus is also given.

 

A two-parameter nuclear softness (NS2) model for the transition energies is   proposed by treating the variation of the moment of inertia with spin. The   model has been applied to the yrast superdeformed (SD) bands in even-even   nuclei in the mass region A ∼∼\sim  190. The model parameters have been   determined from the fitting procedure in order to minimize the relative root   mean square deviation between the experimental E2 transition γγ\gamma -ray   energies and the calculated ones. The basic experimental data on SD bands   are given in the form of a series of γγ\gamma -ray transitional energies and   the spins were determined in our previous works. The excellent agreement   between the theory and the experiment give good support to the model. The   presence of identical bands between the two isotopes 192192^{192}Hg and   194194^{194}Pb is investigated because their differences in γγ\gamma -ray   energies are small and constant up to rotational frequency ℏω∼ℏω∼{\mathcal \hbar}\omega  \sim    0.25 MeV. Our analysis also leads to the appearance of ΔΔ\Delta I = 2   staggering effect in 194194^{194}Hg (SD1). A comment on equilibrium deformation   for each nucleus is also given.

Makale detayları

Description of the yrast superdeformed bands in even-even nuclei in A ∼∼\sim 190 region using the nuclear softness model

Yazarlar:

Ali KHALAF | Karima ABDELMAGEED | Manal SIRAG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2015 Vol.39 Issue 2, pp.178-186

Belge Tipi:

Makale

Yayın Tarihi:

8/2015

Belge Dili:

Türkçe

Document ID (Org No.):

2000759891

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Softness model

moment of inertia

superdeformed nuclei

staggering

Sayı

Makale detayları

Description of the yrast superdeformed bands in even-even nuclei in A ∼∼\sim 190 region using the nuclear softness model

Yazarlar: Ali KHALAF | Karima ABDELMAGEED | Manal SIRAG

Yayıncı: TUBITAK

Dergi: Turkish Journal of Physics 2015 Vol.39 Issue 2, pp.178-186

Belge Tipi: Makale

Yayın Tarihi: 8/2015

Belge Dili: Türkçe

Document ID (Org No.): 2000759891

Sıklık: İki Aylık

eISSN: 1303-6122

pISSN: 1300-0101

Softness model

moment of inertia

superdeformed nuclei

staggering

Sayı

Yazarlar:

Ali KHALAF | Karima ABDELMAGEED | Manal SIRAG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2015 Vol.39 Issue 2, pp.178-186

Belge Tipi:

Makale

Yayın Tarihi:

8/2015

Belge Dili:

Türkçe

Document ID (Org No.):

2000759891

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101