IBM-1 Calculations on the Even-Even 180-184W and 116-120Xe Isotopes Using Interacting Boson Model (IBM)
نویسندگان
چکیده
منابع مشابه
Odd-even 147–153Pm isotopes within the neutron-proton interacting boson-fermion model
Low-lying energy states of the 147−153Pm isotopic chain are studied within the framework of the neutron-proton interacting boson-fermion model (IBFM-2). The spectra of these isotopes show a transition from a particle coupled to a vibrational core to a particle coupled to a deformed one. The calculation reproduces this behavior. In addition, reduced transition probabilities B(E2) and B(M1) and q...
متن کاملمحاسبه ترازهای انرژی پایین ایزوتوپهای زوج-زوج کادمیوم، قلع و تلور در چارچوب مدل بوزونی بر همکنش‌دار (IBM-1)
The dynamical symmetries in even-even nuclei were investigated by Arima and Iachello in 1974, and led to a model called ;ampquotInteracting Boson Model, (IBM)". In this article we have outlined some basic ideas used in IBM-1 and carried out the calculations for low laying energy levels of even-even isotopes Cd, Sn and Te via PHINT code. The calculations for energy and quadra pole moment t...
متن کاملIntrinsic State for an extended version of the interacting boson model ( IBM - 4 )
An intrinsic-state formalism for IBM-4 is presented. A basis of deformed bosons is introduced which allows the construction of a general trial wave function which has Wigner’s spin–isospin SU(4) symmetry as a particular limit. Intrinsic-state calculations are compared with exact ones showing good agreement. PACS numbers: 21.60 -n, 21.60 Fw, 21.60 Ev
متن کاملOn A Strictly Convex IBM Model 1
IBM Model 1 is a classical alignment model. Of the first generation word-based SMT models, it was the only such model with a concave objective function. For concave optimization problems like IBM Model 1, we have guarantees on the convergence of optimization algorithms such as Expectation Maximization (EM). However, as was pointed out recently, the objective of IBM Model 1 is not strictly conca...
متن کاملGlobal calculations with the interacting Boson model
The use of the interacting boson model is proposed for systematic calculations of nuclear properties for large regions of the nuclear chart, including exotic nuclei. In the simplest approach a constant hamiltonian is adopted for all nuclei and nuclear shape transitions are governed solely by total boson number or, equivalently, by total valence particle number. More sophisticated methods requir...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Asian Journal of Applied Sciences
سال: 2014
ISSN: 1996-3343
DOI: 10.3923/ajaps.2015.79.85