Observation of multiphonon transverse wobbling in 133Ba
The low-lying negative parity states in the 133Ba nucleus have been investigated using the 124Sn(13C, 4nγ)133Ba reaction at Elab = 48 MeV. With the addition of new γ-transitions, nω=0,1,2 wobbling bands were identified in this nucleus. The angular correlations and linear polarization measurements ha...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-12-01
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| Series: | Physics Letters B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269321006961 |
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| author | K. Rojeeta Devi Suresh Kumar Naveen Kumar Neelam F.S. Babra Md.S.R. Laskar S. Biswas S. Saha P. Singh S. Samanta S. Das S. Chakraborty R.P. Singh S. Muralithar A. Kumar |
| author_facet | K. Rojeeta Devi Suresh Kumar Naveen Kumar Neelam F.S. Babra Md.S.R. Laskar S. Biswas S. Saha P. Singh S. Samanta S. Das S. Chakraborty R.P. Singh S. Muralithar A. Kumar |
| author_sort | K. Rojeeta Devi |
| collection | DOAJ |
| description | The low-lying negative parity states in the 133Ba nucleus have been investigated using the 124Sn(13C, 4nγ)133Ba reaction at Elab = 48 MeV. With the addition of new γ-transitions, nω=0,1,2 wobbling bands were identified in this nucleus. The angular correlations and linear polarization measurements have been performed to confirm the spin and parity of the states. Predominant E2 character was obtained for the inter-linking ΔI=1 transitions between the successive phonon (Δnω=1) wobbling bands. The transverse nature of the wobbling bands is concluded on the basis of observed decreasing behavior of the wobbling frequency with increasing spin. The quasiparticle triaxial rotor model calculations are found to be in agreement with the experimentally determined wobbling frequency and the transition probability ratios. This letter reports the first observation of transverse wobbling mode associated with a hole-like quasiparticle. |
| first_indexed | 2024-12-15T00:04:15Z |
| format | Article |
| id | doaj.art-6180ab3df49f458bb6def88b2d2f5d37 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-15T00:04:15Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-6180ab3df49f458bb6def88b2d2f5d372022-12-21T22:42:48ZengElsevierPhysics Letters B0370-26932021-12-01823136756Observation of multiphonon transverse wobbling in 133BaK. Rojeeta Devi0Suresh Kumar1Naveen Kumar2 Neelam3F.S. Babra4Md.S.R. Laskar5S. Biswas6S. Saha7P. Singh8S. Samanta9S. Das10S. Chakraborty11R.P. Singh12S. Muralithar13A. Kumar14Department of Physics & Astrophysics, University of Delhi, Delhi-110007, India; Corresponding author.Department of Physics & Astrophysics, University of Delhi, Delhi-110007, IndiaDepartment of Physics & Astrophysics, University of Delhi, Delhi-110007, IndiaDepartment of Physics & Astrophysics, University of Delhi, Delhi-110007, IndiaDepartment of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai - 400005, IndiaDepartment of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai - 400005, IndiaDepartment of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai - 400005, IndiaDepartment of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai - 400005, IndiaDepartment of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai - 400005, IndiaUGC-DAE Consortium for Scientific Research, Kolkata - 700098, IndiaUGC-DAE Consortium for Scientific Research, Kolkata - 700098, IndiaInter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi-110067, IndiaInter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi-110067, IndiaInter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi-110067, IndiaDepartment of Physics, Panjab University, Chandigarh-160014, IndiaThe low-lying negative parity states in the 133Ba nucleus have been investigated using the 124Sn(13C, 4nγ)133Ba reaction at Elab = 48 MeV. With the addition of new γ-transitions, nω=0,1,2 wobbling bands were identified in this nucleus. The angular correlations and linear polarization measurements have been performed to confirm the spin and parity of the states. Predominant E2 character was obtained for the inter-linking ΔI=1 transitions between the successive phonon (Δnω=1) wobbling bands. The transverse nature of the wobbling bands is concluded on the basis of observed decreasing behavior of the wobbling frequency with increasing spin. The quasiparticle triaxial rotor model calculations are found to be in agreement with the experimentally determined wobbling frequency and the transition probability ratios. This letter reports the first observation of transverse wobbling mode associated with a hole-like quasiparticle.http://www.sciencedirect.com/science/article/pii/S0370269321006961Multiphonon transverse wobblingMixing ratio |
| spellingShingle | K. Rojeeta Devi Suresh Kumar Naveen Kumar Neelam F.S. Babra Md.S.R. Laskar S. Biswas S. Saha P. Singh S. Samanta S. Das S. Chakraborty R.P. Singh S. Muralithar A. Kumar Observation of multiphonon transverse wobbling in 133Ba Physics Letters B Multiphonon transverse wobbling Mixing ratio |
| title | Observation of multiphonon transverse wobbling in 133Ba |
| title_full | Observation of multiphonon transverse wobbling in 133Ba |
| title_fullStr | Observation of multiphonon transverse wobbling in 133Ba |
| title_full_unstemmed | Observation of multiphonon transverse wobbling in 133Ba |
| title_short | Observation of multiphonon transverse wobbling in 133Ba |
| title_sort | observation of multiphonon transverse wobbling in 133ba |
| topic | Multiphonon transverse wobbling Mixing ratio |
| url | http://www.sciencedirect.com/science/article/pii/S0370269321006961 |
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