دراسة نوى الفضاء fp-0g9/2 باستخذام النمورج الطبقي وطريقة BCS

الموضوعات

علوم بحتة وطبيعية

روابط وملفات

التعريف والنوع

رقم الوثيقة

08af274d-cde4-408f-8f8c-cb1814af0077

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل دكتوراة

نوع الملف

pdf text

أسماء الملفات

1957747_1.pdf

بيانات النشر

ترجمة العنوان

A study of Nuclei fp-0g9/2 Vacuum by Using Shell Model and BCS Method

ألقاب المؤلفين

[{"name_ar":" هالة وتار","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"ميخائيل فرح","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"نورس غازي الهلامي","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

دراسة نوى الفضاء fp-0g9/2 باستخذام النمورج الطبقي وطريقة BCS

المحتوى والصفحات

عدد الصفحات

237

ترجمة الملخص

Shell model calculations with BCS theory were performed to study the first excited states for 128 nuclei, include 95 even-even nuclei and 33 odd-odd nuclei,and study reduced matrix elements,reduced transition probabilities and half-lives of the first excited states for 66 nuclei,include 59 even-even nuclei and 7 odd-odd nuclei,and also study transition amplitudes, reduced transition probabilities,log ft values,log f0 values and half-lives for 34 allowed beta decays, include 19 forβ+/EC decays and 15 for β-decays, and also study transition amplitudes, reduced transition probabilities,phase-space factor svalues,and half-lives for 20 forbidden beta decays, include 5 decays for first-forbidden, 5 decays for second-forbidden, 6 decays for third-forbidden, 3 decays for fourth-forbidden, and one decay for fifth-forbidden.We applied the MSDI as a residual interaction between like two-quasiparticle (proton–proton, neutron–neutron) for an even–even nuclei, and applied this residual interaction to proton–neutron quasiparticle for odd–odd nuclei,also using MSDI instead of paring interaction to reduce parameters which interference in the secalculations. The calculations carried out in the pure configurations and the case of configuration mixing for all allowed states on the full valence space 2/90gpfـ, which is 2/92/12/52/32/70,1,0,1,0gpfpf. The core is taken atC a 4020 for all nuclei under study and the results of our theoretical calculations are compared with the most recent available experimental data and recent studies.The secalculations achieved by using the shell model code AUSM (Aleppo University Shell Model) for windows, this code innovated and developed by us. It was found that,the shell model using BCS theory is still one of the most suitable models to carry out such as calculations, and we found success for MSDI as a residual interaction also when the valance nucleons is large,and also success when replaced it instead of paring interaction, and it was found taking configuration mixing into consideration for excited states enhance considerably the results more than the case of pure configurations when comparison with experimental data,which means that the nucleus doesn’t reside in one configuration.A good agreement were obtained for electromagnetic transitions and for allowed and forbidden betadecays in the case of configuration mixing, but these results unreliable for pure configuration.From these study,we can determine the excitedstates for some nuclei which not determine experimentally yet.

إشراف وإعداد

الإشراف

هالة وتار, ميخائيل فرح

الإعداد

نورس غازي الهلامي

الاقتباسات الببليوغرافية