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Description Of Isoscalar Giant Dipole Resonance In Nuclei
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Book Synopsis Description of Isoscalar Giant Dipole Resonance in Nuclei by : Oleksiy Grigorievich Pochivalov
Download or read book Description of Isoscalar Giant Dipole Resonance in Nuclei written by Oleksiy Grigorievich Pochivalov and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Applicability of the Hartree-Fock (HF) based random phase approximation (RPA) with several Skyrme effective interactions to the description of the isoscalar giant monopole (ISGMR) and the isoscalar giant dipole resonance (ISGDR) in 90Zr, 116Sn, 144Sm and 208Pb nuclei has been investigated. The existing Skyrme interactions SL1, SkM*, SGII, Sly4 and Sk255 were used. Hartree-Fock description of the ground state properties of all nuclei of interest was obtained using these Skyrme interactions. Transition strength distributions for the ISGMR and the ISGDR in nuclei of interest were calculated using coordinate space representation for the RPA in the Green0́9s function formalism with discretized continuum. A method of projecting out the spurious state contribution from the transition strength distribution and the transition density of the ISGDR was employed to eliminate spurious state mixing, due to a not fully selfconsistent description of the particle-hole interaction within the RPA. Differential cross sections of 240 MeV alpha-particles inelastic scattering on all nuclei of interest were calculated using the folding model within the distorted wave Born approximation (DWBA). Optical potentials were obtained by folding HF ground state densities with a alpha-nucleon density dependent Gaussian interaction. Parameters of the interaction were obtained by fitting experimental angular distribution of alpha-nucleus elastic scattering. The inelastic differential cross sections were calculated using both collective and microscopic transition densities. Possible underestimations of the energy weighted sum rule for the case of the ISGDR are reported. An alternative description for the ISGDR in nuclei based on the Fermi liquid drop model (FLDM) with the collisional Fermi surface distortion was investigated. The FLDM dispersion relation was obtained from the linearized Landau-Vlasov equation. Centroid energies, E0 and E1, and widths, gamma-0 and gamma-1, of the ISGMR and ISGDR, respectively, were calculated as functions of the damping parameter using appropriate boundary conditions. Comparison of the theoretical ratios of the ISGDR and ISGMR centroid energies, E1/E0, to the experimental values resulted in a damping parameter equal to 0.5, however, systematic overestimation of energy of the ISGMR and ISGDR by 2.0-2.5 MeV was observed. The applicability of the HF-RPA to the description for the ISGDR in nuclei is confirmed.
Download or read book Giant Resonances written by M. N. Harakeh and published by Oxford Studies in Nuclear Phys. This book was released on 2001 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: Giant resonances are collective excitations of the atomic nucleus, a typical quantum many-body system. The study of these fundamental modes has in many respects contributed to our understanding of the bulk behavior of the nucleus and of the dynamics of non-equilibrium excitations. Although the phenomenon of giant resonances has been known for more than 50 years, a large amount of information has been obtained in the last 10 years. This book gives an up-to-date, comprehensive account of our present knowledge of giant resonances. It presents the experimental facts and the techniques used to obtain that information, describes how these facts fit into theoretical concepts and how this allows to determine various nuclear properties which are otherwise difficult to obtain. Included as an introduction is an overview of the main facts, a short history of how the field has developed in the course of time, and a discussion of future perspectives.
Book Synopsis A Study of the Isoscalar Giant Monopole Resonance by : Darshana Chandrakant Patel
Download or read book A Study of the Isoscalar Giant Monopole Resonance written by Darshana Chandrakant Patel and published by Springer. This book was released on 2015-12-24 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis reports on investigations of a specific collective mode of nuclear vibration, the isoscalar giant monopole resonance (ISGMR), the nuclear "breathing mode", the energy of which is directly related to a fundamental property of nuclei—the nuclear incompressibility. The alpha inelastic scattering experiments reported in this thesis have been critical to answering some fundamental questions about nuclear incompressibility and the symmetry energy, quantities that are crucial to our understanding of a number of phenomena in nuclear physics and astrophysics, including collective excitations in nuclei, radii of neutron stars, and the nature of stellar collapse and supernova explosions. The work described included three sets of experiments and subsequent sophisticated data analysis, both leading to results that have been welcomed by the community and recognised as important contributions to the field.
Book Synopsis Microscopic Description of Isoscalar Giant Resonance Excitations in 40Ca and 116SN Nuclei by : Bhishma Karki
Download or read book Microscopic Description of Isoscalar Giant Resonance Excitations in 40Ca and 116SN Nuclei written by Bhishma Karki and published by . This book was released on 2000 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Key Nuclear Reaction Experiments by : Hans Paetz gen. Schieck
Download or read book Key Nuclear Reaction Experiments written by Hans Paetz gen. Schieck and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book the author charts the developments in nuclear physics since its inception around a century ago by reviewing the key experiments that helped drive and shape our understanding of the field, especially in the context of the wider developments in physics in the early 20th century. In addition to providing a path through the field and the crucial events it looks at how these experiments not only answered key questions at the time but presented new challenges to the contemporary perception of the nuclear and sub-atomic worlds and how they helped develop our present understanding of nuclear physics.
Download or read book Giant Resonances written by P.F. Bortigan and published by Taylor & Francis. This book was released on 2023-05-31 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series of volumes, Contemporary Concepts in Physics, is addressed to the professional physicist and to the serious graduate student of physics. The subject of many-body systems constitutes a central chapter in the study of quantum mechanics, with applications ranging from elementary particle and condensed matter physics to the behaviour of compact stellar objects. Quantal size effects is one of the most fascinating facets of many-body physics; this is testified to by the developments taking place in the study of metallic clusters, fullerenes, nanophase materials, and atomic nuclei. This book is divided into two main parts: the study of giant resonances based on the atomic nucleus ground state (zero temperature), and the study of the y-decay of giant resonances from compound (finite temperature) nuclei.
Book Synopsis https://books.google.com/books?id=PEZdDwAAQBAJ&pri... by :
Download or read book https://books.google.com/books?id=PEZdDwAAQBAJ&pri... written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Giant Dipole Resonance in Highly Excited −p208−sPb Nuclei by : Easwar Ramakrishnan
Download or read book Giant Dipole Resonance in Highly Excited −p208−sPb Nuclei written by Easwar Ramakrishnan and published by . This book was released on 1995 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Facet Of Spin Giant Resonances In Nuclei (Sgr97) - Proceedings Of The International Symposium by : Hideyuki Sakai
Download or read book New Facet Of Spin Giant Resonances In Nuclei (Sgr97) - Proceedings Of The International Symposium written by Hideyuki Sakai and published by World Scientific. This book was released on 1998-07-31 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on a new development of spin giant resonances in nuclei. It covers: quenching phenomena in Gamow-Teller giant resonances, spin-dipole giant resonances, spin-longitudinal and transverse responses in quasi-elastic scattering, microscopic structures, isoscalar spin responses, and spin excitations in exotic nuclei as well as in related fields. The book provides comprehensive coverage of theory and experiment on intriguing spin phenomena, by distinguished contributors.
Book Synopsis The Giant Dipole Resonance in Hot Rotating Nuclei by : M. E. Faber
Download or read book The Giant Dipole Resonance in Hot Rotating Nuclei written by M. E. Faber and published by . This book was released on 1983 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nuclear Collective Motion by : David J. Rowe
Download or read book Nuclear Collective Motion written by David J. Rowe and published by World Scientific. This book was released on 2010 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two most important developments in nuclear physics were the shell model and the collective model. The former gives the formal framework for a description of nuclei in terms of interacting neutrons and protons. The latter provides a very physical but phenomenological framework for interpreting the observed properties of nuclei. A third approach, based on variational and mean-field methods, brings these two perspectives together in terms of the so-called unified models. Together, these three approaches provide the foundations on which nuclear physics is based. They need to be understood by everyone practicing or teaching nuclear physics, and all those who wish to gain an understanding of the foundations of the models and their relationships to microscopic theory as given by recent developments in terms of dynamical symmetries. This book provides a simple presentation of the models and theory of nuclear collective structure, with an emphasis on the physical content and the ways they are used to interpret data. Part 1 presents the basic phenomenological collective vibrational and rotational models as introduced by Bohr and Mottelson and their many colleagues. It also describes the extensions of these models to parallel unified models in which neutrons and protons move in a mean-field with collective degrees of freedom. Part 2 presents the predominant theories used to describe the collective properties of nuclei in terms of interacting nucleons. These theories, which are shared with other many-body systems, are shown to emerge naturally from the unified models of Part 1.
Book Synopsis New approach to the width of giant dipole resonance in hot nuclei by : Nguyen Dinh Dang
Download or read book New approach to the width of giant dipole resonance in hot nuclei written by Nguyen Dinh Dang and published by . This book was released on 1994 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analog of the T] Giant Dipole Resonance in Light Nuclei by :
Download or read book Analog of the T] Giant Dipole Resonance in Light Nuclei written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Giant resonances were observed in ([pi]+, [pi]- ) double charge exchange on 13C, 27Al, and 59Co at excitation energies of 8.8, 14.2, and 27.9 MeV, respectively, where the giant dipoles built on the isobaric analog states are expected to appear. Partial angular distributions were measured for both 13C and 27Al and observed to have a dipole shape. The resonance on the T=1/2 targets has a single isospin value (T=3/2) and is the analog of the T> giant dipole state in the above nuclei. The results are in good agreement with photonuclear reactions and indicate a new general method for an accurate determination of the T>=T+1 giant dipole state in T=1/2 nuclei.
Book Synopsis The Nuclear Many-Body Problem by : Peter Ring
Download or read book The Nuclear Many-Body Problem written by Peter Ring and published by Springer Science & Business Media. This book was released on 2004-03-25 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study Edition
Book Synopsis The Giant Dipole Resonance in Ligth Nuclei and Related Phenomena by : Rudol'f Amaâkovič Èramžân
Download or read book The Giant Dipole Resonance in Ligth Nuclei and Related Phenomena written by Rudol'f Amaâkovič Èramžân and published by . This book was released on 1986 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electric And Magnetic Giant Resonances In Nuclei by : Josef Speth
Download or read book Electric And Magnetic Giant Resonances In Nuclei written by Josef Speth and published by World Scientific. This book was released on 1991-10-31 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the most recent and complete review on giant resonances in nuclei. It includes electric as well as magnetic collective states and a detailed discussion on the excitation mechanisms and the decay properties is given.
Book Synopsis The Giant Dipole Resonance of Medium Spherical Nuclei by : David George Owen
Download or read book The Giant Dipole Resonance of Medium Spherical Nuclei written by David George Owen and published by . This book was released on 1970 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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