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Title: Nonadiabatic quasiparticle description of rotation-particle coupling in triaxial odd-odd nuclei
Authors: Siwach P.
Arumugam, Paramasivan
Modi S.
Ferreira L.S.
Maglione E.
Published in: Journal of Physics G: Nuclear and Particle Physics
Abstract: A large wealth of data and a variety of models led to significant progress in understanding the spectra of deformed nuclei. However, a robust theoretical approach, which is less reliant on adjustable parameters is still elusive. Due to the scarcity of data, this drawback gets more pronounced while studying the exotic nuclei. With the motive to overcome this difficulty, we have developed the nonadiabatic quasiparticle approach for the description of rotational states in triaxial deformed odd-odd nuclei. The rotation-particle coupling is carried out utilizing an appropriate basis transformation such that the matrix elements of the odd-odd system can be written in terms of the rotor energies. This provides the advantage of studying the role of core more efficiently as compared to the conventional particle rotor model. The residual interaction between the valence proton and neutron is incorporated in two reliable ways, namely, the constant potential form and the zero-range interaction.
Citation: Journal of Physics G: Nuclear and Particle Physics(2020), 47(12)
Issue Date: 2020
Publisher: IOP Publishing Ltd
Keywords: Collective models
Non adiabatic quasiparticle approach
Odd-odd nuclei
Triaxialy deformed nuclei
ISSN: 9543899
Author Scopus IDs: 57219913052
Author Affiliations: Siwach, P., Department of Physics, Indian Institute of Technology, Roorkee, 247667, India
Arumugam, P., Department of Physics, Indian Institute of Technology, Roorkee, 247667, India
Modi, S., Department of Physics, BIT Sindri, Dhanbad, Jharkhand 828121
Funding Details: Council of Scientific and Industrial Research, India, CSIR: 03(1338)/15/EMR-II Ministry of Human Resource Development, MHRD: 1-5728195591.This work is supported by the Council of Scientific and Industrial Research, Government of India, via project no. 03(1338)/15/EMR-II and TEQIP Collaborative research scheme, MHRD, Govt. of India, via project ID 1-5728195591
Corresponding Author: Arumugam, P.; Department of Physics, India; email:
Appears in Collections:Journal Publications [PH]

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