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Reisdorf W Andronic A Gobbi A Hartmann ON Herrmann N Hildenbrand KD Kim YJ Kirejczyk M Koczoń P Kress T Leifels Y Schüttauf A Tymiński Z Xiao ZG Alard JP Barret V Basrak Z Bastid N Benabderrahmane ML Caplar R Crochet P Dupieux P Dzelalija M Fodor Z Grishkin Y Hong B Kecskemeti J Korolija M Kotte R Lebedev A Lopez X Merschmeyer M Mösner J Neubert W Pelte D Petrovici M Rami F de Schauenburg B Seres Z Sikora B Sim KS Simion V Siwek-Wilczyńska K Smolyankin V Stockmeier M Stoicea G Wagner P 《Physical review letters》2004,92(23):232301
We present a complete systematics (excitation functions and system-size dependences) of global stopping and side flow for heavy ion reactions in the energy range between 0.09A and 1.93A GeV. For the heaviest system, Au+Au, we observe a plateau of maximal stopping extending from about 0.2A to 0.8A GeV with a fast drop on both sides. The degree of stopping, which is shown to remain significantly below the expectations of a full stopping scenario, is found to be highly correlated to the amount of side flow. 相似文献
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W. Brückner D. Husar D. Pelte K. Traxel M. Samuel U. Smilansky 《Nuclear Physics A》1974,231(1):159-175
Alpha particles in the energy range of 10–20 MeV and scattered at various angles were used to excite the 0+, 2+, 4+ members in the ground state bands of 152Sm, 154Sm and 186W. The measured excitation probabilities for bombarding energies below the Coulomb barrier were analyzed in the framework of Coulomb excitation theory. The resulting matrix elements of the E2 and E4 multipole operators were interpreted in terms of charge deformation parameters βcλ = 2, 4. The cross sections for higher energies were analyzed in terms of the deformed optical potential and resulted in potential deformation parameters βpλ = 2, 4. The two sets of deformation parameters show the same general trend of variation with target mass number. Still, significant differences are observed in some particular cases. 相似文献
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Alard JP Basrak Z Bastid N Belayev IM Bini M Blaich T Bock R Buta A Caplar R Cerruti C Cindro N Coffin JP Crouau M Dupieux P Erö J Fan ZG Fintz P Fodor Z Freifelder R Fraysse L Frolov S Gobbi A Grigorian Y Guillaume G Herrmann N Hildenbrand KD Hölbling S Houari O Jeong SC Jorio M Jundt F Kecskemeti J Koncz P Korchagin Y Kotte R Krämer M Kuhn C Legrand I Lebedev A Maguire C Manko V Matulewicz T Mgebrishvili G Mösner J Moisa D Montarou G Morel P Neubert W Olmi A Pasquali G Pelte D Petrovici M 《Physical review letters》1992,69(6):889-892
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Isotopic-yield ratios of complex fragments from intermediate-energy heavy-ion reactions 总被引:1,自引:0,他引:1
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Jeong SC Herrmann N Fan ZG Freifelder R Gobbi A Hildenbrand KD Krämer M Randrup J Reisdorf W Schüll D Sodan U Teh K Wessels JP Pelte D Trzaska M Wienold T Alard JP Amouroux V Basrak Z Bastid N Belayev IM Berger L Bini M Blaich T Boussange S Buta A Caplar R Cerruti C Cindro N Coffin JP Dona R Dupieux P Erö J Fintz P Fodor Z Fraysse L Frolov S Grigorian Y Guillaume G Hölbling S Houari A Jundt F Kecskemeti J Koncz P Korchagin Y Kotte R Kuhn C Ibnouzahir M Legrand I Lebedev A Maguire C Manko V 《Physical review letters》1994,72(22):3468-3471
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G. Rudolf A. Gobbi H. Stelzer U. Lynen A. Olmi H. Sann R.G. Stokstad D. Pelte 《Nuclear Physics A》1979,330(1):243-252
Projectile-like products from the reaction 86Kr on 166Er at 8.18 MeV/amu have been measured using a large-area position-sensitive ionization chamber. The observed element distributions for a given energy loss are found to be asymmetric. An analysis of the data in terms of the residual kinetic energy above the Coulomb barrier, however, yields symmetric and Gaussian-shaped element distributions. At large energy losses, the centroids of these Gaussian distributions exhibit a drift towards symmetric mass splits. The correlation between the variance of the element distribution σz2 and the number of exchanged nucleons Nex is discussed. The exchange mechanism, as described by a simple one-body dissipation model, can account for a large portion of the measured energy loss. 相似文献
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The elastic and inelastic scattering of 12C by 12C has been measured over a wide angular range employing a kinematical analysis with the help of position-sensitive detectors. The bombarding energy was varied in 200 keV steps between 10 and 37.6 MeV. The cross sections are analysed in the framework of compound fluctuations and the direct reaction model. 相似文献
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M. Trzaska D. Pelte M. -C. Lemaire J. P. Alard J. Augerat D. Bachelier N. Bastid J. -L. Boyard C. Cavata P. Charmensat J. Cugnon P. Dupieux P. Gorodetzky J. Gosset T. Hennino J. -C. Jourdain A. LeMerdy D. L'Hôte B. Lucas J. Marroncle G. Montarou M. -J. Parizet J. Poitou D. Quassoud P. Radvanyi B. Ramstein A. Rahmani M. Roy-Stephan O. Valette J. Vandermeulen P. Zupranski 《Zeitschrift für Physik A Hadrons and Nuclei》1991,340(3):325-331
The excitation of theΔ resonance is observed in proton collisions on C, Nb and Pb targets at 0.8 and 1.6 GeV incident energies. The mass E0 and widthΓ of the resonance are determined from the invariant mass spectra of correlated (p, π±)-pairs in the final state of the collision: The mass E0 is smaller than that of the free resonance, however by comparing to intra-nuclear cascade calculations, this reduction is traced back to the effects of Fermi motion, NN scattering and pion reabsorption in nuclear matter. 相似文献