Structure of positive parity states in 139Pm

S. S. Tiwary; H. P. Sharma; S. Chakraborty; C. Majumder; A. K. Gupta; Swati Modi; P. Arumugam; P. Banerjee; S. Ganguly; K. Rojeeta Devi; Neelam; S. Kumar; S. K. Chamoli; A. Sharma; V. V. Jyothi; Mayank; A. Kumar; S. S. Bhattacharjee; Indu Bala; S. Muralithar; R. P. Singh

doi:10.1088/1402-4896/abaea8

Structure of positive parity states in ¹³⁹Pm

S. S. Tiwary, H. P. Sharma, S. Chakraborty, C. Majumder, A. K. Gupta, Swati Modi, P. Arumugam, P. Banerjee, S. Ganguly, K. Rojeeta Devi, Neelam, S. Kumar, S. K. Chamoli, A. Sharma, V. V. Jyothi, Mayank, A. Kumar, S. S. Bhattacharjee, Indu Bala, S. MuralitharR. P. Singh

Research output: Contribution to journal › Article › peer-review

Abstract

The excited states of 139Pm is investigated via 127I(16O, 4n)139Pm reaction at 84 MeV beam energy. The spin and parity of several states have been determined from the results of angular correlation (R DCO ) and linear polarization asymmetry (Δasym) measurements. The features of four positive parity bands have been determined. A band above state at 1951 keV comprised of strong magnetic dipole transitions has been established and a three-quasi-protons configuration is suggested on the basis of systematic of neighbouring nuclei. Additionally, a new band above state at 228 keV is observed. The states are compared with the modified particle rotor model calculations which indicated πg 7/2 configuration for this band.

Original language	English
Article number	095304
Journal	Physica Scripta
Volume	95
Issue number	9
DOIs	https://doi.org/10.1088/1402-4896/abaea8
State	Published - Sep 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 IOP Publishing Ltd.

Keywords

Collective models
Nuclear structure
collective and non-collective energy levels
particle rotor model
spin and parity assignments
transitions and level energies

Access to Document

10.1088/1402-4896/abaea8

Cite this

Tiwary, S. S., Sharma, H. P., Chakraborty, S., Majumder, C., Gupta, A. K., Modi, S., Arumugam, P., Banerjee, P., Ganguly, S., Devi, K. R., Neelam, Kumar, S., Chamoli, S. K., Sharma, A., Jyothi, V. V., Mayank, Kumar, A., Bhattacharjee, S. S., Bala, I., ... Singh, R. P. (2020). Structure of positive parity states in ¹³⁹Pm. Physica Scripta, 95(9), [095304]. https://doi.org/10.1088/1402-4896/abaea8

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title = "Structure of positive parity states in 139Pm",

abstract = "The excited states of 139Pm is investigated via 127I(16O, 4n)139Pm reaction at 84 MeV beam energy. The spin and parity of several states have been determined from the results of angular correlation (R DCO ) and linear polarization asymmetry (Δasym) measurements. The features of four positive parity bands have been determined. A band above state at 1951 keV comprised of strong magnetic dipole transitions has been established and a three-quasi-protons configuration is suggested on the basis of systematic of neighbouring nuclei. Additionally, a new band above state at 228 keV is observed. The states are compared with the modified particle rotor model calculations which indicated πg 7/2 configuration for this band.",

keywords = "Collective models, Nuclear structure, collective and non-collective energy levels, particle rotor model, spin and parity assignments, transitions and level energies",

author = "Tiwary, {S. S.} and Sharma, {H. P.} and S. Chakraborty and C. Majumder and Gupta, {A. K.} and Swati Modi and P. Arumugam and P. Banerjee and S. Ganguly and Devi, {K. Rojeeta} and Neelam and S. Kumar and Chamoli, {S. K.} and A. Sharma and Jyothi, {V. V.} and Mayank and A. Kumar and Bhattacharjee, {S. S.} and Indu Bala and S. Muralithar and Singh, {R. P.}",

note = "Publisher Copyright: {\textcopyright} 2020 IOP Publishing Ltd.",

year = "2020",

month = sep,

doi = "10.1088/1402-4896/abaea8",

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volume = "95",

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Tiwary, SS, Sharma, HP, Chakraborty, S, Majumder, C, Gupta, AK, Modi, S, Arumugam, P, Banerjee, P, Ganguly, S, Devi, KR, Neelam, Kumar, S, Chamoli, SK, Sharma, A, Jyothi, VV, Mayank, Kumar, A, Bhattacharjee, SS, Bala, I, Muralithar, S & Singh, RP 2020, 'Structure of positive parity states in ¹³⁹Pm', Physica Scripta, vol. 95, no. 9, 095304. https://doi.org/10.1088/1402-4896/abaea8

TY - JOUR

T1 - Structure of positive parity states in 139Pm

AU - Tiwary, S. S.

AU - Sharma, H. P.

AU - Chakraborty, S.

AU - Majumder, C.

AU - Gupta, A. K.

AU - Modi, Swati

AU - Arumugam, P.

AU - Banerjee, P.

AU - Ganguly, S.

AU - Devi, K. Rojeeta

AU - Neelam,

AU - Kumar, S.

AU - Chamoli, S. K.

AU - Sharma, A.

AU - Jyothi, V. V.

AU - Mayank,

AU - Kumar, A.

AU - Bhattacharjee, S. S.

AU - Bala, Indu

AU - Muralithar, S.

AU - Singh, R. P.

PY - 2020/9

Y1 - 2020/9

N2 - The excited states of 139Pm is investigated via 127I(16O, 4n)139Pm reaction at 84 MeV beam energy. The spin and parity of several states have been determined from the results of angular correlation (R DCO ) and linear polarization asymmetry (Δasym) measurements. The features of four positive parity bands have been determined. A band above state at 1951 keV comprised of strong magnetic dipole transitions has been established and a three-quasi-protons configuration is suggested on the basis of systematic of neighbouring nuclei. Additionally, a new band above state at 228 keV is observed. The states are compared with the modified particle rotor model calculations which indicated πg 7/2 configuration for this band.

AB - The excited states of 139Pm is investigated via 127I(16O, 4n)139Pm reaction at 84 MeV beam energy. The spin and parity of several states have been determined from the results of angular correlation (R DCO ) and linear polarization asymmetry (Δasym) measurements. The features of four positive parity bands have been determined. A band above state at 1951 keV comprised of strong magnetic dipole transitions has been established and a three-quasi-protons configuration is suggested on the basis of systematic of neighbouring nuclei. Additionally, a new band above state at 228 keV is observed. The states are compared with the modified particle rotor model calculations which indicated πg 7/2 configuration for this band.

KW - Collective models

KW - Nuclear structure

KW - collective and non-collective energy levels

KW - particle rotor model

KW - spin and parity assignments

KW - transitions and level energies

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