6533b829fe1ef96bd128af81
RESEARCH PRODUCT
Unified description of 2+_1 states within the deformed quasiparticle random-phase approximation
Jouni SuhonenDoru-sabin Delionsubject
SuperfluidityPhysicsNuclear and High Energy PhysicsAngular momentumClassical mechanicsta114Quantum mechanicsQuasiparticleCharge (physics)State (functional analysis)Polarization (waves)Ground stateRandom phase approximationdescription
We describe low-lying collective states in deformed even-even nuclei within a deformed quasiparticle random-phase approximation (dQRPA) by using a single-particle basis with good angular momentum. The statistical factors, accounting for the level occupancy, appear in the dQRPA in a natural way as rotation coefficients that take the intrinsic system to the laboratory system. We have used our model by performing a systematic analysis of E2 transitions from the first ${2}^{+}$ state to the ground state for all superfluid nuclei in the range $50lZ\ensuremath{\le}100$ by using a common charge polarization parameter $\ensuremath{\chi}=0.2$. In spite of its similarity to the QRPA, this method is able to describe in an unified way gross features of electromagnetic transitions from vibrational to rotational nuclei.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-02-13 | Physical Review C |