UID:
almafu_9960943507102883
Format:
1 online resource (153 pages)
ISBN:
9783031171505
Series Statement:
Springer Theses
Note:
Intro -- Supervisors' Foreword -- Acknowledgments -- Contents -- Parts of This Thesis Have Been Published in the Following Journal Articles -- Symbols -- 1 Background and Motivation -- 1.1 Nuclear Deformations -- 1.2 Nuclear Triaxiality -- 1.2.1 Nuclear Wobbling Motion -- 1.2.2 Chirality of Nuclear Rotation -- 1.3 Motivation for Studying 135Pr Nucleus -- 1.4 Motivation for Studying 187Au Nucleus -- References -- 2 Theory -- 2.1 Nuclear Shell Model -- 2.1.1 Harmonic Oscillator Potential -- 2.1.2 Woods-Saxon Potential -- 2.2 Nuclear Shapes and the Deformed Shell Model -- 2.3 Collective Rotation -- 2.3.1 Rotation About a Principal Axis -- 2.3.2 Rotation About a Tilted Axis -- 2.3.3 Rotation Out of the Principal Planes -- 2.4 Wobbling Modes in Nuclei -- 2.4.1 Wobbling in Even-Even Nuclei -- 2.4.2 Wobbling in Odd-A Nuclei -- 2.4.2.1 Longitudinal and Transverse Wobbling Bands -- 2.4.2.2 Yrast and Signature Partner Bands -- 2.5 Chiral Rotation in Nuclei -- 2.6 Nuclear Models to Study Wobbling Motion -- 2.6.1 Particle Rotor Model -- 2.6.2 Quasiparticle Triaxial Rotor Model -- 2.6.3 Triaxial Projected Shell Model -- 2.7 Theory of Angular Distributions -- References -- 3 Experimental Details -- 3.1 Interaction of Gamma Rays with Matter -- 3.2 Gamma-Ray Spectroscopy with Germanium Detectors -- 3.2.1 High Purity Germanium (HPGe) Detectors -- 3.2.2 Response Function of HPGe Spectra -- 3.2.3 Compton Suppression -- 3.2.4 The Gammasphere Array -- 3.2.4.1 Honeycomb Suppression Used in Gammasphere -- 3.2.4.2 Digital Gammasphere Acquisition System -- 3.3 Angular Distributions and DCO-Ratios -- 3.4 Reduced Transition Probability Ratios -- 3.5 Heavy-Ion Fusion-Evaporation Reactions -- 3.5.1 Beam and Target Specifications -- 3.6 ATLAS -- 3.7 Run Details -- 3.7.1 135Pr Run -- 3.7.2 187Au Runs -- 3.7.3 Chiral Wobbler Run.
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3.8 Pre-Calibration with Digital Gammasphere Data -- 3.9 Energy and Efficiency Calibrations -- References -- 4 Analysis -- 4.1 Data Sorting Into Matrices and Cubes -- 4.2 Background Subtraction Techniques -- 4.3 Coincidence Relationships and Level Schemes -- 4.3.1 135Pr -- 4.3.2 187Au -- 4.4 Spin and Parity Assignments -- 4.4.1 Angular Distributions and DCO-Like Ratios -- 4.4.1.1 135Pr -- 4.4.1.2 187Au -- References -- 5 Results and Theoretical Discussion -- 5.1 Two-Phonon Wobbling in 135Pr -- 5.2 Wobbling Motion in 187Au -- 5.2.1 Longitudinal Wobbling Bands -- 5.2.2 Transverse Wobbling Bands -- 5.3 Chiral Wobbling in 135Pr -- References -- 6 Updates and Future Work -- 6.1 Updates -- 6.2 Future Work -- References -- A Gammasphere Detector and Ring Information -- B Digital Gammasphere Calibration Parameters -- C Gammasphere Energy and Efficiency Calibration Parameters -- Curriculam vitae of Nirupama Sensharma.
Additional Edition:
Print version: Sensharma, Nirupama Wobbling Motion in Nuclei: Transverse, Longitudinal, and Chiral Cham : Springer International Publishing AG,c2022 ISBN 9783031171499
Language:
English
