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Artigo

Herman Feshbach, Yoel Tikochinsky,

... 53 QUANTIZATION OF THE DAMPED HARMONIC OSCILLATOR* Herman Feshbach, Herman Feshbach Laboratory for Nuclear Science and Department of ... Search for more papers by this author Herman Feshbach, Herman Feshbach Laboratory for Nuclear Science and Department of Physics ...

Tópico(s): Quantum chaos and dynamical systems

1977 - Wiley | Transactions of the New York Academy of Sciences

Artigo Revisado por pares

Earle L. Lomon, Herman Feshbach, Herman Feshbach,

The nucleon-nucleon data are fitted by a boundary condition model interaction determined largely by field-theoretic forms. One and two pions, ϱ, ω, and η meson exchange adiabatic local potentials determine th interaction for r ⩾ 12μ where (1/μ) is the pion Compton wavelength. The two-pion-exchange contribution contains a degree of ambiguity measured by the parameters ξ and λ for the pion-ladder and nucleonpair diagrams respectively. The interaction at r0 is given by an energy-independent boundary condition ...

Tópico(s): Nuclear physics research studies

1968 - Elsevier BV | Annals of Physics

Artigo

Herman Feshbach,

... and Permissions Cite Icon Cite Search Site Citation Herman Feshbach; Small Systems: When Does Thermodynamics Apply?. Physics Today ...

Tópico(s): Spectroscopy and Quantum Chemical Studies

1987 - AIP Publishing | Physics Today

Artigo

Albert B. Stewart, Abner Shimony, Herman Feshbach,

... evaluation of Tisza's philosophy of science, and Herman Feshbach, Head of the Department of Physics at MIT, ...

Tópico(s): Marine and environmental studies

1983 - Antioch College | The Antioch Review

Artigo

A. de-Shalit, Herman Feshbach, Eric Sheldon,

... Cite Icon Cite Search Site Citation Amos deShalit, Herman Feshbach, Eric Sheldon; Theoretical Nuclear Physics Vol. 1: Nuclear ...

Tópico(s): Nuclear reactor physics and engineering

1974 - AIP Publishing | Physics Today

Artigo

Philip Μ. Morse, Herman Feshbach, E. U. Condon,

... Icon Cite Search Site Citation Philip M. Morse, Herman Feshbach, E. U. Condon; Methods of Theoretical Physics Parts ...

Tópico(s): Advanced Thermodynamics and Statistical Mechanics

1954 - AIP Publishing | Physics Today

Artigo Acesso aberto

A. Rau,

... Today, August 2004, page 12), Daniel Kleppner relates Herman Feshbach’s reaction to the term “Feshbach resonance” and ...

Tópico(s): Quantum chaos and dynamical systems

2005 - AIP Publishing | Physics Today

Artigo Acesso aberto Revisado por pares

T. W. Anderson,

... Sample Design in Business Research Amos de Shalit & Herman Feshbach Theoretical Nuclear Physics, Volume 1 --Nuclear Structure J. L. Doob Stochastic Processes Nelson Dunford & Jacob T. Schwartz Linear Operators, Part One, General Theory Nelson Dunford & Jacob T. Schwartz Linear Operators, Part Two, Spectral Theory--Self Adjoint Operators in Hilbert Space Nelson Dunford & Jacob T. Schwartz Linear Operators, Part Three, Spectral Operators Herman Fsehbach Theoretical Nuclear Physics: Nuclear Reactions Bernard Friedman ...

Tópico(s): Diverse Scientific and Engineering Research

1995 - Oxford University Press | Biometrics

Artigo Acesso aberto Revisado por pares

Xiangdong Ji,

... a great honor to have received the 2016 Herman Feshbach Prize in theoretical nuclear physics by the American ...

Tópico(s): High-Energy Particle Collisions Research

2017 - Oxford University Press | National Science Review

Artigo Acesso aberto Revisado por pares

Alessandra Vittorini-Orgeas, A. Bianconi,

... lineshape of two electron excitations and the 1958 Herman Feshbach paper on the shape resonances in nuclear scattering ...

Tópico(s): Iron-based superconductors research

2009 - Springer Science+Business Media | Journal of Superconductivity and Novel Magnetism

Artigo Acesso aberto

Shiyi Chen, Gregory L. Eyink, Gregory Falkovich, Uriel Frisch, Steven A. Orszag, Katepalli R. Sreenivasan,

... Scattering of Pseudoscalar Mesons by Nucleons," supervised by Herman Feshbach. He was one of Albert Einstein's last ...

Tópico(s): Statistical Mechanics and Entropy

2008 - AIP Publishing | Physics Today

Artigo Revisado por pares

Herman Feshbach,

The effective Hamiltonian method for nuclear reactions described in an earlier paper with the same title, part I, is generalized so as to include all possible reaction types, as well as the effects arising from the identity of particles. The principal device employed, as in part I, is the projection operator which selects the open channel components of the wave function. It is found that the formal structure of part I providing a unified description for direct and compound nuclear reactions including ...

Tópico(s): Atomic and Molecular Physics

2000 - Elsevier BV | Annals of Physics

Artigo

G. F. Bertsch, Ricardo A. Broglia, Herman Feshbach,

Preface 1. Introduction 2. Basic concepts 3. Theoretical tools 4. RPA 5. Dipole oscillations 6. Surface modes 7. Compressional modes 8. Spin modes 9. Line broadening and the decay of oscillations 10. Thermal effects Appendices References Index.

Tópico(s): Magneto-Optical Properties and Applications

1995 - AIP Publishing | Physics Today

Artigo

Herman Feshbach, Ernest M. Henley,

Multiple scattering formal theory of nuclear reactions elastic and inelastic scattering transfer reactions multistep reactions heavy ions high energy nuclear phenomena pion and kaon interactions with nuclei.

Tópico(s): Nuclear Physics and Applications

1992 - AIP Publishing | Physics Today

Artigo Revisado por pares

C. B. Dover, Herman Feshbach,

Motivated by a recent suggestion that an SU(3) selection rule may explain the narrow widths of some hypernuclear excitations in the Σ continuum, we re-examine the role of unitary symmetry in low energy baryon-baryon (BB) interactions. A direct examination of the BB scattering data indicates that SU(3) symmetry is broken, but leaves us with several alternative schemes for describing the mechanism of symmetry breaking. We study the one-boson exchange (OBE) model in some detail, and relate the usual ...

Tópico(s): High-Energy Particle Collisions Research

1990 - Elsevier BV | Annals of Physics

Artigo

Torleif Ericson, W. Weise, Herman Feshbach,

The pion has emerges as the main feature of nuclear structure beyond the traditional description in terms of neutrons and protons. It manifests itself in a number of areas which are normally only loosely interlinked, but intimately related to the pion-nucleon and pion-nuclear interactions: the nucleon-nucleon force; the nuclear many-body problem; nuclear electromagnetic and weak interactions; nuclear spinisospin interactions; pion-nucleus scattering and reactions; etc. This book is a systematic ...

Tópico(s): Nuclear physics research studies

1989 - AIP Publishing | Physics Today

Artigo Acesso aberto Revisado por pares

Richard Wilson, K.J. Araj, Augustine O. Allen, Peter Auer, David G. Boulware, F.C. Finlayson, Simon L. Goren, Clark H. Ice, L. J. Lidofsky, A.L. Sessoms, Mary LaSalle Shoaf, I. Spiewak, Thomas Tombrello, H. S. Gutowsky, Andreas Acrivos, Herman Feshbach, William A. Fowler,

In 1983, The American Physical Society formed a study group on radionuclide release from severe accidents at nuclear power plants to "review the adequacy of the technical base upon which the phenomenological models for radionuclide release from postulated severe reactor ac- cidents are constructed, the adequacy of the models them- selves, and the correct use of the complex computer codes that incorporate these models in the analyses of accident sequences."The impetus to the existing research came ...

Tópico(s): Combustion and Detonation Processes

1985 - American Physical Society | Reviews of Modern Physics

Artigo Revisado por pares

Herman Feshbach,

The theory of statistical multistep direct reactions is revised by including an energy average of the wave functions involved. As a consequence it is found that the transition matrix element which must be used at each step is in the DWBA form, resolving an important difficulty of the theory.

Tópico(s): Advanced Physical and Chemical Molecular Interactions

1985 - Elsevier BV | Annals of Physics

Artigo Revisado por pares

Herman Feshbach, A. K. Kerman, S. E. Koonin,

The theory of nuclear reactions is extended so as to include a statistical treatment of multi-step processes. Two types are distinguished, the multi-step compound and the multi-step direct. The wave functions for the system are grouped according to their complexity. The multi-step direct process involves explicitly those states which are open, while the multi-step compound involves those which are bound. In addition to the random phase assumption which is applied differently to the multi-step direct ...

Tópico(s): Spectral Theory in Mathematical Physics

1980 - Elsevier BV | Annals of Physics

Artigo

Philip Μ. Morse, Herman Feshbach,

Tópico(s): Climate Change Communication and Perception

1977 - AIP Publishing | Physics Today

Artigo Revisado por pares

Herman Feshbach, Mark Christopher Zabek,

Tópico(s): Nuclear Physics and Applications

1977 - Elsevier BV | Annals of Physics

Artigo Revisado por pares

Elie Boridy, Herman Feshbach,

The calculated elastic scattering of 1.04-GeV protons by 208Pb, 58Ni, and 40Ca is compared with experiment. The effects of the spin-orbit potential, Pauli and short-range correlations, variations in the ratio of the real to the imaginary part of the nucleon-nucleon scattering amplitude at 0° are found to have similar effects. Further experiments are required before these effects can be disentangled. Changes of the neutron density compared to the proton density can be distinguished. The proton polarization ...

Tópico(s): Advanced NMR Techniques and Applications

1977 - Elsevier BV | Annals of Physics

Artigo

Herman Feshbach,

Tópico(s): Atomic and Molecular Physics

1976 - EDP Sciences | Le Journal de Physique Colloques

Artigo Revisado por pares

F. Naundorf,

... 34003 CrossrefGoogle Scholar[15] Philip M. Morse and , Herman Feshbach, Methods of theoretical physics. 2 volumes, McGraw-Hill ...

Tópico(s): Spectral Theory in Mathematical Physics

1976 - Society for Industrial and Applied Mathematics | SIAM Journal on Mathematical Analysis

Artigo Revisado por pares

Herman Feshbach,

A quantum foundation is developed for the methods employed in the calculation of the pre-equilibrium component of the energy spectrum of nuclear reaction products. It involves the application of the statistical theory of nuclear reactions to chained doorway states.

Tópico(s): Nuclear reactor physics and engineering

1974 - American Physical Society | Reviews of Modern Physics

Artigo Revisado por pares

Herman Feshbach, F. Iachello,

A relatively quick and correspondingly rough procedure is developed to deal with complex nuclear excitations. This procedure exploits the existence in nuclei of collective excitation (phonons) by replacing the many fermion degrees of freedom with fewer boson degrees of freedom. The emerging picture is that of an interacting boson gas. The boson-boson interaction and boson annihilation graphs are explicitly constructed. It is shown that the interacting boson approximation (IBA) gives good results when ...

Tópico(s): Advanced NMR Techniques and Applications

1974 - Elsevier BV | Annals of Physics

Artigo Revisado por pares

J.J. Ullo, Herman Feshbach,

Tópico(s): High-Energy Particle Collisions Research

1974 - Elsevier BV | Annals of Physics

Artigo Revisado por pares

Elie Boridy, Herman Feshbach,

The recent data on both elastic and inelastic scattering of 1 GeV protons by 40Ca and 208Pb are analyzed by means of the first term of the multiple scattering series for the optical potential and the DWIA. Theory and experiment agree quite well. Coulomb effects are taken into account. Neutron and proton ground state densities given by Hartree-Fock calculations employing a density-dependent Hamiltonian and which provide a good fit to elastic electron scattering are used. The Tassie form factors, ...

Tópico(s): Quantum Chromodynamics and Particle Interactions

1974 - Elsevier BV | Physics Letters B

Artigo Revisado por pares

Eric Lambert, Herman Feshbach,

Tópico(s): Quantum Chromodynamics and Particle Interactions

1973 - Elsevier BV | Annals of Physics

Artigo Revisado por pares

Herman Feshbach, Kai Huang,

The "incoherent droplet model" is used to explain recent experiments on the fragmentation of 16O during high energy collision with a Be target. In the 16O rest frame the fragments have a universal iso tropic Gaussian momentum distribution, independent to the masses of the fragments. The half-width of the Gaussian is 〈p〉 (A3n), where, A is the mass number of the nucleus, n is the total number of fragments, and 〈p2〉 is the mean square momentum of individual nucleons in the fragmenting nucleus.

Tópico(s): Scientific Research and Discoveries

1973 - Elsevier BV | Physics Letters B