Theoretical study of lifetimes and polarizabilities inBa+

the study of practical and theoretical foundation of credit risk and its coverage

پس از بررسی هر کدام از فاکتورهای نوع صنعت, نوع ضمانت نامه, نرخ بهره , نرخ تورم, ریسک اعتباری کشورها, کارمزد, ریکاوری, gdp, پوشش و وثیقه بر ریسک اعتباری صندوق ضمانت صادرات ایران مشخص گردید که همه فاکتورها به استثنای ریسک اعتباری کشورها و کارمزد بقیه فاکتورها رابطه معناداری با ریسک اعتباری دارند در ضمن نرخ بهره , نرخ تورم, ریکاوری, و نوع صنعت و ریسک کشورها اثر عکس روی ریسک اعتباری داردو پوشش, وثی...

Determination of lifetimes and nonadiabatic correlations from measured dipole polarizabilities

In atomic systems for which the total oscillator strength of excitations from the ground state is dominated by the transition to the lowest resonance level, the f -sum rule provides a bracketing inequality connecting the lifetime τ of that level to the dipole polarizability αd . This relationship has been used previously to deduce αd from τ . It is shown here that improved spectroscopic accurac...

Theoretical study of quasiparticle inelastic lifetimes as applied to aluminum

I. A. Nechaev,1,* I. Yu. Sklyadneva,1,2 V. M. Silkin,3 P. M. Echenique,1,3 and E. V. Chulkov1,3 1Donostia International Physics Center (DIPC), P. de Manuel Lardizabal, 4, 20018, San Sebastián, Basque Country, Spain 2Institute of Strength Physics and Materials Science, Prospekt Academicheski 2/1, 634021, Tomsk, Russia 3Departamento de Física de Materiales, Facultad de Ciencias Químicas, UPV/EHU ...

Theoretical Predictions for Pion Polarizabilities 1

The polarizabilities of the pion have been predicted in several different theoretical frameworks. The status of these is reviewed.

Measurement of Lifetimes and Electric Polarizabilities and Search for New Levels in Atomic Samarium