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Damping Of Giant Dipole Resonance A Manifestation Of Irreversible Processes In Hot Nuclei
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Book Synopsis Damping of Giant Dipole Resonance - a Manifestation of Irreversible Processes in Hot Nuclei by : Nguyen Dinh Dang
Download or read book Damping of Giant Dipole Resonance - a Manifestation of Irreversible Processes in Hot Nuclei written by Nguyen Dinh Dang and published by . This book was released on 1995 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Damping of the Giant Dipole Resonance in Hot, Strongly Rotating Nuclei by : M. (Niels Bohr Institutet) Gallardo
Download or read book Damping of the Giant Dipole Resonance in Hot, Strongly Rotating Nuclei written by M. (Niels Bohr Institutet) Gallardo and published by . This book was released on 1985 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Contribution of Higher-order Processes to the Damping of Hot Giant Dipole Resonance by : Dinh Dang Nguyen
Download or read book Contribution of Higher-order Processes to the Damping of Hot Giant Dipole Resonance written by Dinh Dang Nguyen and published by . This book was released on 1998 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report by : Tōkyō Daigaku. Genshikaku Kenkyūjo
Download or read book Report written by Tōkyō Daigaku. Genshikaku Kenkyūjo and published by . This book was released on 1994 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1996 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Giant Dipole Resonance in the Hot and Thermalized 132Ce Nucleus by :
Download or read book Giant Dipole Resonance in the Hot and Thermalized 132Ce Nucleus written by and published by . This book was released on 2006 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The [gamma] decay of the Giant Dipole Resonance in the 132Ce compound nucleus with temperature up to ≈ 4 MeV has been measured. The symmetric 64Ni + 68Zn at E{sub beam} = 300, 400, 500 MeV and the asymmetric reaction 16O + 116Sn at E{sub beam} = 130, 250 MeV have been investigated. Light charged particles and [gamma] rays have been detected in coincidence with the recoiling compound system. In the case of the mass symmetric 64Ni induced reaction the [gamma] and charged particle spectral shapes are found to be consistent with the emission from a fully equilibrated compound nuclei and the GDR parameters are extracted from the data using a statistical model analysis. The GDR width is found to increase almost linear with temperature. This increase is rather well reproduced within a model which includes both the thermal fluctuation of the nuclear shape and the lifetime of the compound nucleus.
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 Motional Narrowing in the Damping of Giant Resonances in Hot Nuclei by : B. (Niels Bohr Institutet) Lauritzen
Download or read book Motional Narrowing in the Damping of Giant Resonances in Hot Nuclei written by B. (Niels Bohr Institutet) Lauritzen and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Statistical Analysis of the Hot Giant Dipole Resonance with the Phonon Damping Model by :
Download or read book Statistical Analysis of the Hot Giant Dipole Resonance with the Phonon Damping Model written by and published by . This book was released on 1999 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Role of Thermal Fluctuations in the Damping of the Giant Dipole Resonance of Spherical and Deformed Nuclei by : M. (Niels Bohr Institutet) Gallardo
Download or read book Role of Thermal Fluctuations in the Damping of the Giant Dipole Resonance of Spherical and Deformed Nuclei written by M. (Niels Bohr Institutet) Gallardo and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Temperature Dependence of the Width of the Giant Dipole Resonance by :
Download or read book The Temperature Dependence of the Width of the Giant Dipole Resonance written by and published by . This book was released on 1995 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic study of the full-width-at-half-maximum (FWHM) of the giant-dipole resonance (GDR) as a function of temperature for the nuclei 12°Sn and 2°8Pb confirms the overall theoretical picture of the GDR in hot nuclei; in particular, the role played by large-amplitude thermal fluctuations of the nuclear shape. This is confirmed by the good agreement between theory and experiment achieved over a range of temperatures from 1.25--32 MeV and by the differences in the behavior of the FWHM for 12°Sn and 2°8Pb, which can be attributed to the presence of strong shell corrections favoring spherical shapes in 2°8Pb that are absent in 12°Sn. Finally, the increase in the FWHM over that expected from thermal averaging at temperatures of the order 3.0 MeV is in accordance with the increase expected from the particle evaporation of the compound system.
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.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Radiative Processes in Astrophysics by : George B. Rybicki
Download or read book Radiative Processes in Astrophysics written by George B. Rybicki and published by John Wiley & Sons. This book was released on 2008-09-26 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiative Processes in Astrophysics: This clear, straightforward, and fundamental introduction is designed to present-from a physicist's point of view-radiation processes and their applications to astrophysical phenomena and space science. It covers such topics as radiative transfer theory, relativistic covariance and kinematics, bremsstrahlung radiation, synchrotron radiation, Compton scattering, some plasma effects, and radiative transitions in atoms. Discussion begins with first principles, physically motivating and deriving all results rather than merely presenting finished formulae. However, a reasonably good physics background (introductory quantum mechanics, intermediate electromagnetic theory, special relativity, and some statistical mechanics) is required. Much of this prerequisite material is provided by brief reviews, making the book a self-contained reference for workers in the field as well as the ideal text for senior or first-year graduate students of astronomy, astrophysics, and related physics courses. Radiative Processes in Astrophysics also contains about 75 problems, with solutions, illustrating applications of the material and methods for calculating results. This important and integral section emphasizes physical intuition by presenting important results that are used throughout the main text; it is here that most of the practical astrophysical applications become apparent.
Book Synopsis The Physics of Ultra-High-Density Magnetic Recording by : M.L. Plumer
Download or read book The Physics of Ultra-High-Density Magnetic Recording written by M.L. Plumer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Application-oriented book on magnetic recording, focussing on the underlying physical mechanisms that play crucial roles in medium and transducer development for high areal density disk drives.
Book Synopsis The Nuclear Cooper Pair by : Grégory Potel Aguilar
Download or read book The Nuclear Cooper Pair written by Grégory Potel Aguilar and published by Cambridge University Press. This book was released on 2021-10-28 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a unified theory of nuclear structure and nuclear reactions using the language of quantum electrodynamics, Feynman diagrams.
