Multiple Scales in the Fine Structure of the Isoscalar Giant Quadrupole Resonance in ^{208}Pb
作者： D. Lacroix , A. Mai , P. von Neumann-Cosel , A. Richter , J. Wambach
DOI: 10.1016/S0370-2693(00)00301-4
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摘要: The fine structure of the isoscalar giant quadrupole resonance in ^{208}Pb, observed high-resolution (p,p') and (e,e') experiments, is studied using entropy index method. In a novel way, it enables to determine number scales present spectra their magnitude. We find intermediate fluctuations around 1.1 MeV, 460 keV 125 for an excitation energy region 0 - 12 MeV. A comparison with extracted from second RPA calculations, which are good agreement experiment, shows that they arise internal mixing collective motion two particle-two hole components nuclear wavefunction.
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sci-hub.se 参考文章(23)
P. F. Bortignon, A. Bracco, R. A. Broglia, Giant Resonances: Nuclear Structure at Finite Temperature CRC Press. ,(2019) , 10.1201/9780203753224
A. KLEIN, Nuclear Collective Motion Science. ,vol. 207, pp. 398- 398 ,(1980) , 10.1126/SCIENCE.207.4429.398
Peter Ring, Peter Schuck, The Nuclear Many-Body Problem Springer Berlin Heidelberg. ,(1980) , 10.1007/978-3-642-61852-9
S Drozdz, S Nishizaki, J Speth, J Wambach, None, The nuclear response within extended RPA theories Physics Reports. ,vol. 197, pp. 1- 65 ,(1990) , 10.1016/0370-1573(90)90084-F
W. Cassing, U. Mosel, Many-body theory of high-energy heavy-ion reactions Progress in Particle and Nuclear Physics. ,vol. 25, pp. 235- 323 ,(1990) , 10.1016/0146-6410(90)90032-Y
P.-G. REINHARD, C. TOEPFFER, CORRELATIONS IN NUCLEI AND NUCLEAR DYNAMICS International Journal of Modern Physics E-nuclear Physics. ,vol. 03, pp. 435- 521 ,(1994) , 10.1142/S0218301394000139
Y. Abe, S. Ayik, P.-G. Reinhard, E. Suraud, On stochastic approaches of nuclear dynamics Physics Reports. ,vol. 275, pp. 49- 196 ,(1996) , 10.1016/0370-1573(96)00003-8
Vladimir Zelevinsky, QUANTUM CHAOS AND COMPLEXITY IN NUCLEI Annual Review of Nuclear and Particle Science. ,vol. 46, pp. 237- 279 ,(1996) , 10.1146/ANNUREV.NUCL.46.1.237
A. Schwierczinski, R. Frey, A. Richter, E. Spamer, H. Theissen, O. Titze, Th. Walcher, S. Krewald, R. Rosenfelder, Multipole assignment of the 8.9-MeV resonance in $sup 208$Pb Physical Review Letters. ,vol. 35, pp. 1244- 1247 ,(1975) , 10.1103/PHYSREVLETT.35.1244
G. Kühler, D. Meuer, S. Müller, A. Richter, E. Spamer, O. Titze, W. Knüpfer, Electroexcitation of 208Pb, distribution of electric dipole and quadrupole strength and fragmentation of the isoscalar quadrupole giant resonance Physics Letters B. ,vol. 104, pp. 189- 193 ,(1981) , 10.1016/0370-2693(81)90588-8