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4 edition of Photodisintegration of nuclei in the giant resonance region found in the catalog.

Photodisintegration of nuclei in the giant resonance region

FizicheskiiМ† institut imeni P.N. Lebedeva.

Photodisintegration of nuclei in the giant resonance region

by FizicheskiiМ† institut imeni P.N. Lebedeva.

Written in English

Subjects:
• Photonuclear reactions.

• Edition Notes

Classifications The Physical Object Statement edited by D.V. Skobelʹtsyn. Translated from Russian. Series Proceedings (Trudy) of the P.N. Lebedev Physics Institute,, v. 36, Trudy Fizicheskogo instituta., v. 36. Contributions Skobelʹt͡s︡yn, D. V. 1892- ed. LC Classifications QC1 .A4114 vol. 36 Pagination vii, 191 p. Number of Pages 191 Open Library OL5548956M LC Control Number 67027905

Multineutron photodisintegration of the Au nucleus behind the giant dipole resonance: Authors: Ermakov, A. N The experimental results in question suggest the important role of the quasideuteron photodisintegration mechanism in the energy region behind the giant dipole resonance. Bibtex entry for this abstract Preferred   TeV °-rays via nuclei de-excitation: HEGRA source Haim Goldberg Department of Physics, Northeastern University, Boston, MA E-mail: [email protected] Abstract. It is possible that TeV ° rays can originate in the photo-deexcitation of a PeV nucleus following photodisintegration via the Giant Dipole Resonance in an environment rich in

PHYSICAL REVIE% C VOL NUMBER 1 JANUARY Two-body photodisintegration of He in the — Mev region R.A. Schurnacher, 'ws, %.Sapp, and R. ~ Department ofPhysics and Laboratory for Nuclear Science, Massachusetts Institute ofTechnology, Cambridge, Massachusetts G. Department ofPhysics and Astronomy, Uniuersity ofSouth   and isovector components. While in light nuclei the onset of dipole strength in the low-energy region is caused by non-resonant independent single-particle excitations of the loosely bound neutrons, several theoretical analyses have predicted the existence of the pygmy dipole resonance (PDR) in medium-mass and heavy nuclei, i.e., the

The 4He photodisintegration in the giant dipole resonance region is a particularly in-teresting reaction. An understanding of this process in terms of a microscopic calculation is not only a challenge in few-body physics, but could also lead to a deeper insight in the physics of more complex Pygmy resonance, due to the much smaller size of its strength in comparison with the Giant Dipole Resonance (GDR). In recent years, experimental and theoretical investigations, on both stable and radioactive nuclei, revealed that the presence of the pygmy resonance is a common phenomenon in a large number of atomic nuclei [1].

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Photodisintegration of nuclei in the giant resonance region by FizicheskiiМ† institut imeni P.N. Lebedeva. Download PDF EPUB FB2

Photoprotons from Medium Weight Nuclei (50≲ A ≲ ) and a Mechanism for the Decay of Excited Nuclei in the Giant Dipole Resonance Region R.

Osokina Pages Photodisintegration of nuclei in the giant resonance region. New York, Consultants Bureau, (OCoLC) Document Type: Book: All Authors / Contributors: D V Skobelʹt︠s︡yn; Fizicheskiĭ institut imeni P.N. :// Photodisintegration of Nuclei in the Giant Resonance Region.

Springer Verlag (OCoLC) Material Type: Conference publication, Document, Internet resource: Document Type: Internet Resource, Computer File: All Authors / Contributors: D V Skobelʹt︠s︡yn; Fizicheskiĭ institut imeni P.N. :// Photodisintegration of nuclei in the giant resonance region edited by D.V.

Skobelʹtsyn ; translated from Russian （Proceedings (Trudy) of the P.N. Lebedev Physics Institute, v. 36） Consultants Bureau, Photodisintegration of heavy nuclei in the energy region above the giant dipole resonance Article in Physics of Atomic Nuclei 73(5) May with 19 Reads How we measure 'reads' Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link) Abstract.

Experimental data on yields of multiparticle photonuclear reactions (involving the emission of up to seven neutrons from the nucleus involved) on Au,Tl, and Bi nuclei in the region extending from the giant dipole resonance to an energy of MeV are presented.

These data are compared with the results of modern theoretical calculations that take into account both   Experimental data on yields of multiparticle photonuclear reactions (involving the emission of up to seven neutrons from the nucleus involved) on Au, ,Tl, and Bi nuclei in the region extending from the giant dipole resonance to an energy of MeV are presented.

These data are compared with the results of modern theoretical calculations that take into account both the excitation The results of these calculations at the energies of -quanta from MeV to MeV (we would remind you that the binding energy of 3 H into the n 2 H channel is equal to MeV) are   Photodisintegration of cosmic ray nuclei in galaxies and galaxy cluster radiation elds Figure 1.

Left (a): Spectral density as a function of the energy for the backgrounds we consider (see text). Right (b): Contribution of the different photonuclear processes to the total MFP as a function of the Lorentz factor of an iron Abstract.

Partial cross sections as well as energy and angular distributions of photodisintegration products of the Ca 40 nucleus are calculated using the shell model.

It is shown that the use of empirical data on the levels of the adjacent nuclei and the account of nucleon-nucleon interactions make it possible to describe satisfactorily the photodisintegration of the giant resonance ://   The damping of the giant-resonance modes in light nuclei, which results almost totally from penetration through the centrifugal barrier, has been calculated by Bauer and FerrellLo for the case of This damping %.

Reifman, Z. Naturforsh. 84, (). Partial cross sections as well as energy and angular distributions of photodisintegration products of the Ca 40 nucleus are calculated using the shell model.

It is shown that the use of empirical data on the levels of the adjacent nuclei and the account of nucleon-nucleon interactions make it possible to describe satisfactorily the photodisintegration of the giant resonance :// @article{osti_, title = {Measurement of the {sup }Am({gamma},n){sup }Am reaction in the giant dipole resonance region}, author = {Tonchev, A P and Howell, C R and Hutcheson, A and Kwan, E and Raut, R and Rusev, G and Tornow, W and Triangle Universities Nuclear Laboratory, Durham, North Carolina and Hammond, S L and It is pointed out that the Danos-Okamoto effect (splitting of the giant resonance for non-spherical nuclei into two components) should be more readily observable in the region 9 = Z = 30 than in the rare earth region where the initial search for the effect has been made.

The ratio of the energies of the two components of the split resonance depends on the deformation of the nucleus from Hadron and Nuclear Physics with Electromagnetic Probes for the three-body systems are analyzed in view of clarifying the missing experimental strength puzzle in the 4 He giant dipole resonance.

The theoretical study of photodisintegration of nuclei using the quasi-deuteron model expressed the photodisintegration cross section of nuclei 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   The photoneutron cross section in the giant resonance region for several 82 neutron isotones Ronald Gordon Johnson fore if structure exists in the giant resonance of heavy nuclei, the first place to look for it is at closed shells.

As shown in Figure 1 considerabl?article=&context=rtd. A method has been developed for analysis of partial photonucleon cross sections (cross sections of the reactions ., p/sub i/) and ., n/sub i/), where the subscript i indicates the final-nucleus state being populated) which permits extraction from them of information on the probability of the semidirect mechanism of decay of the giant dipole :// The methods used, however, were good enough to obtain the shape of the giant-resonance peak for many nuclei, also the double-hump structure of the peaks in the region of rare earths (reported independently by Spicer), which had been predicted by Danos [13, 14].

A comprehensive understanding of the electroweak response of 4 He nuclei in the giant dipole region is essential to resolve the process of neutrino nucleosynthesis in supernovae.

We simultaneously measured two photodisintegration reactions, 4 He($$\gamma$$, 1 H 3 H) and 4 He($$\gamma$$, 3 He)n, in the energy range of $$E_{\gamma }$$ = – MeV.

Quasi-mono Guido Piragino, Russian physicist. Achievements include experimental study of the pion photoproduction on nuclei; the photoneutrons from nuclei and the giant dipole resonance structure; the photodisintegration of helium-4; the charged pions interaction with helium isotopes; the antiproton interaction with nuclei; the multinucleon pion absorption in light nuclei; quark structure of nuclear ://Electron scattering qjf nuclei 1.

Introduction Though the theory of relativistic electron scattering was written about 60 years ago (MottMdler ), it was not until the early s that Lyman et a1 () measured the first differential cross section for the scattering of electrons off nuclei at the MeV Illinois ://