Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Alexander G. Magner"'
Level density $\rho(E,N,Z)$ is derived for a nuclear system with a given energy $E$, neutron $N$, and proton $Z$ particle numbers, within the semiclassical extended Thomas-Fermi and periodic-orbit theory beyond the Fermi-gas saddle-point method. We o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86fca18affb2666928a4ba91d293ae50
Level density $\rho(E,A)$ is derived for a one-component nucleon system with a given energy $E$ and particle number $A$ within the mean-field semiclassical periodic-orbit theory beyond the saddle-point method of the Fermi gas model. We obtain $~~\rho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d5dd38a392bc0b1ffecb3af80757045
Autor:
A. Ionescu, Cosmin Teodor Mihai, C. R. Nita, H.-F. Wirth, R. Lica, R. E. Mihai, Ralf Hertenberger, A. I. Levon, C. Costache, A. A. Shevchuk, D. Bucurescu, S. Pascu, K. P. Shevchenko, Alexander G. Magner, A. Turturica, Thomas Faestermann
Publikováno v:
Physical Review C. 102
The excitation spectra in the deformed nucleus $^{158}\mathrm{Gd}$ have been studied with high energy resolution for the extended spin and parity range by means of the $(p, t)$ reaction using the Q3D spectrograph facility at the Munich Tandem acceler
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afbde5fc03ab229db769f1326827bfd6
https://doi.org/10.1103/physrevc.102.014308
https://doi.org/10.1103/physrevc.102.014308
Autor:
K. P. Shevchenko, Alexander G. Magner, Thomas Faestermann, Ralf Hertenberger, A. Turturica, C. Costache, R. Lica, D. Bucurescu, A. A. Shevchuk, A. I. Levon, R. E. Mihai, A. Ionescu, C. R. Nita, H.-F. Wirth, C. Mihai, S. Pascu
Publikováno v:
Physical Review C. 100
Excited states in the deformed nucleus $^{158}$Gd have been studied in the (p,t) reaction by using the Munich Tandem and Q3D spectrograph. 30 new excited 0$^+$ states (three tentative) have been assigned up to the 4.3 MeV excitation energy. The total
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a233442c4c08634ee15eba7c223f5a2d
https://doi.org/10.1103/physrevc.100.034307
https://doi.org/10.1103/physrevc.100.034307
Publikováno v:
The European Physical Journal A. 54
The simple one-parameter nearest neighbor-spacing distribution (NNSD) is suggested for statistical analysis of nuclear spectra. This distribution is derived within the Wigner-Dyson approach in the linear approximation for the level repulsion density
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https://explore.openaire.eu/search/publication?articleId=doi_________::00f1f1c2592a1bf8549eb9917e657850
https://doi.org/10.1140/epja/i2018-12645-8
https://doi.org/10.1140/epja/i2018-12645-8
Publikováno v:
Physics of Atomic Nuclei. 79:1067-1123
The periodic-orbit theory based on the improved stationary-phase method within the phase-space path integral approach is presented for the semiclassical description of the nuclear shell structure, concerning the main topics of the fruitful activity o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb98acd3cb3a480bd7f66b7bbf4a84e3
https://doi.org/10.1134/s1063778816060181
https://doi.org/10.1134/s1063778816060181
Publikováno v:
Physical Review C. 97
Statistical analysis of distributions of the collective states in the actinide and rare-earth nuclei is performed in terms of the nearest neighbor spacing distribution (NNSD). Several approximations, such as the linear approach to the level repulsion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcf83889f2582a060e8f854a60e86df4
https://doi.org/10.1103/physrevc.97.044305
https://doi.org/10.1103/physrevc.97.044305
Autor:
Ken-ichiro Arita, Alexander G. Magner
Publikováno v:
Physical Review E. 96
The Fedoriuk-Maslov catastrophe theory of caustics and turning points is extended to solve the bifurcation problems by the improved stationary phase method (ISPM). The trace formulas for the radial power-law (RPL) potentials are presented by the ISPM
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f3e7c83cb7d932c4c7b9432a454d738
https://doi.org/10.1103/physreve.96.042206
https://doi.org/10.1103/physreve.96.042206
Publikováno v:
Progress of Theoretical Physics. 115:523-546
The analytical trace formula for a dense cascade of bifurcations was derived using the improved stationary phase method based on extensions of the semiclassical Gutzwiller path integral approach. For the integrable version of the famous Henon-Heiles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0dad56fc943a7551188928ec9fe5d4a
https://doi.org/10.1143/ptp.115.523
https://doi.org/10.1143/ptp.115.523
Publikováno v:
Journal of Physics A: Mathematical and General. 36:1095-1110
We present an analytical calculation of periodic orbits in the homogeneous quartic oscillator potential. Exploiting the properties of the periodic Lam{\'e} functions that describe the orbits bifurcated from the fundamental linear orbit in the vicinit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27e9c37806a818514f27e1d29f8b7b45
https://doi.org/10.1088/0305-4470/36/4/317
https://doi.org/10.1088/0305-4470/36/4/317