Speaker
Dr
Paramasivan Arumugam
(Department of Physics, Indian Institute of Technology Roorkee, Uttarakhand 247667, India)
Description
Measuring the proton emission decay widths and corroborating them with microscopic calculations have yielded rich information about the structure and decay properties of proton drip nuclei. The spectroscopic data on the low lying states of these nuclei are also crucial in complementing the information from decay widths. Apart from proton emitters, the spectroscopic data of low lying states of neighbouring nuclei are also useful in understanding the nuclear structure at this extreme. A few such cases where the data is scarce or not available will be pointed out and in such cases the importance of our recently proposed approach for rotation particle coupling will also be highlighted. The particle rotor model (PRM) is widely used and quite successful for a long time, in explaining the observed rotational spectra of several nuclei [1,2]. Microscopic theories for proton emission utilizing this approach is regarded as one among the most robust and successful approaches [3,4]. We propose a formalism named as the coupling matrix approach with which the deviation from the rotational behaviour of the core can be taken in to account properly. The key idea of this formalism is based on the coupled channels approach for odd-even nuclei suggested in Refs. [1,5] and was successfully applied to study the nucleus 151Lu [6]. Extension of this method to odd-odd nuclei and application to proton emitters will be discussed in the workshop.
References
[1] A. Bohr and B. R. Mottelson, Nuclear Structure (Benjamin, New York, 1969), Vol. II.
[2] A. K. Jain et al., Rev. Mod. Phys. 62, 393 (1990); 70, 843 (1998).
[3] E. Maglione, L. S. Ferreira, and R. J. Liotta, Phys. Rev. Lett. 81, 538 (1998).
[4] M. Patial, P. Arumugam, A.K. Jain, E. Maglione and L. S. Ferreira, Phys. Lett. B 718, 979 (2013); Phys. Rev C 88, 054302 (2013).
[5] H. Esbensen and C. N. Davids, Phys. Rev. C 63, 014315 (2000).
[6] M.G. Procter, et al., Phys. Lett. B 725, 79 (2013)
Author
Dr
Paramasivan Arumugam
(Department of Physics, Indian Institute of Technology Roorkee, Uttarakhand 247667, India)
Co-authors
Prof.
Enrico Maglione
(Dipartimento di Física e Astronomia “G. Galilei”, Via Marzolo 8, I-35131 Padova, Italy and Istituto Nazionale di Fisica Nucleare, Padova, Italy)
Prof.
Lidia Ferreira
(Centro de Física das Interacções Fundamentais, and Departmento de Física, Instituto Superior Técnico, Avenida Rovisco Pais, P1049-001 Lisbon, Portugal)
Dr
Monika Patial
(Department of Physics, KTH (Royal Institute of Technology), SE-10691 Stockholm, Sweden and Department of Physics, Indian Institute of Technology Roorkee, Uttarakhand 247667, India)
