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AbstractAbstract
[en] Breakup couplings are known to have important effects on the near-barrier elastic scattering of "6He. However, the ("6He, "5He) single neutron stripping has also been found to have a significant coupling effect, although in calculations that did not include breakup. We firstly present calculations for the "6He + "2"0"8Pb system that include both breakup and single neutron stripping at 22 and 27 MeV to confirm that the significant stripping coupling effect persists in the presence of breakup couplings. We then compare separate calculations including transfer couplings only with recent elastic scattering data at incident "6He energies of 14, 16, 18, 22 and 27 MeV. We also include in an approximate way the two-neutron stripping reaction in an attempt to gain some qualitative insight into the possible coupling effects of this other important near-barrier reaction channel. (author)
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SOTANCP2008: 1. workshop on the state of the art in nuclear cluster physics; Strasbourg (France); 13-16 May 2008; Available from DOI: http://dx.doi.org/10.1142/S0218301308011604
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Journal Article
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International Journal of Modern Physics E; ISSN 0218-3013;
; v. 17(10); p. 2354-2358

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AbstractAbstract
[en] The dissociation of 63 MeV/nucleon beams of 6He has been measured by observing the breakup α particles at four angles between 0 degrees and 5 degrees in the S320 magnetic spectrometer at MSU. Targets with a range in A from 12 to 197 were used. For each breakup event the presence or absence of one or more γ rays from the target was recorded by an array of BaF2 detectors which surrounded the target. The events in coincidence with γ rays are necessarily nuclear in origin, and a substantial fraction of the observed α particles do have Mγ>0. The data permit a quantitative study of the contribution of different breakup mechanisms by assuming that the A-dependence of breakup in the nuclear field of the target is independent of target excitation. The measurements permit determination of both the longitudinal and transverse momenta of the α particles. These are quite different depending on whether or not target γ rays are observed. Fits to the momentum spectra, which are qualitatively different for light and heavy targets, will be presented
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Fall meeting of the Division of Nuclear Physics of the American Physical Society; Bloomington, IN (United States); 25-28 Oct 1995; CONF-9510116--
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[en] The experimental program on the study of deuteron-proton interaction at Internal Target at Nuclotron is discussed. Recent results obtained for dp -elastic scattering and dp -breakup reactions at intermediate energies are presented. The status of the DSS setup upgrade is reported.
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Available from http://link.springer.com/openurl/pdf?id=doi:10.1134/S1547477111100153; Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Physics of Particles and Nuclei Letters (Print); ISSN 1547-4771;
; v. 8(10); p. 1084-1086

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AbstractAbstract
[en] In the past two decades, several laboratories have produced a large amount of data for cross sections, analyzing powers, and other spin observables from various reactions in the three-nucleon system. The results allow one to arrive at a moderately good description of the data by only using the two-nucleon potentials in Faddeev-type calculations. The remaining discrepancies should, in principle, and aside from Coulomb and relativistic effects, be removed once the effects of three-nucleon forces are implemented. High precision data on elastic and break-up reactions show, however, that even after the inclusion of these effects, the picture is not complete yet and some ingredients are still missing in the calculations.
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SPIN2012: 20. International Symposium on Spin Physics; Dubna (Russian Federation); 17-22 Sep 2012; Available from http://link.springer.com/openurl/pdf?id=doi:10.1134/S1063779613060099; Copyright (c) 2013 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
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Physics of Particles and Nuclei; ISSN 1063-7796;
; v. 44(6); p. 899-903

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AbstractAbstract
[en] Weakly bound projectiles can break up in the Coulomb field of a target nucleus. This break-up may be a sequential process in which the projectile is first excited to an inelastic state through which it subsequently breaks up, or the projectile can break up rapidly without passing through an intermediate state. It is found that the angular scattering range over which the Coulomb field is dominant is different for these two types of break-up. An explanation of this difference is that the transition matrix element for direct break-up in the Coulomb field has large contributions from widely separated fragments in the initial projectile. (author)
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Journal Article
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Journal of Physics, G (London). Nuclear Physics; ISSN 0305-4616;
; CODEN JPHGB; v. 15(3); p. L41-L46

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AbstractAbstract
[en] We study the feasibility of an experimental observation of toroidal breakup configurations in Au+Au collisions using the CHIMERA multidetector system. BUU simulations indicate that the threshold energy for toroidal configuration is around 23 MeV/nucleon. The simulations of decay process using the ETNA code indicate the sensitivity of some observables to different studied break-up geometries. (author)
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14. Nuclear Physics Workshop "Marie and Pierre Curie": large scale collective motion; Kazimierz Dolny (Poland); 26-30 Sep 2007; Available from DOI: http://dx.doi.org/10.1142/S0218301308009689
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International Journal of Modern Physics E; ISSN 0218-3013;
; v. 17(1); p. 190-195

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AbstractAbstract
[en] Short communication
Original Title
Rol' vzaimodejstviya v konechnom sostoyanii podsistemy n+d v reaktsii razvala dejtrona na dejtrone pri ehnergii 13,6 MehV
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Dzhelepov, B.S.; AN SSSR, Moscow (Russian Federation); AN Kazakhskoj SSR, Alma-Ata (Kazakhstan). Inst. Yadernoj Fiziki; 486 p; 1992; p. 217; International conference on nuclear spectroscopy and nuclear structure; Mezhdunarodnoe soveshchanie po yadernoj spektroskopii i strukture atomnogo yadra; Alma-Ata (Kazakhstan); 21-24 Apr 1992
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Shyam, R.; Mukherjee, S.N.
Proceedings of the nuclear physics and solid state physics symposium [held at] Ahmedabad, December 27-31, 19761977
Proceedings of the nuclear physics and solid state physics symposium [held at] Ahmedabad, December 27-31, 19761977
AbstractAbstract
[en] An alternative method to ensure fast convergence of the radial integrals appearing in the deuteron stripping and break-up reactions to the continuum has been suggested. The radial integral is broken up into two parts. In the first part, integration is performed from zero to R by using the exact scattering wave functions. In the second part, wave functions occuring in the integrand are expressed in terms of coulomb functions, and the resulting integral is expressed in terms of a fast converging hyper-geometric functions. The expressions are worked out. (author)
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Department of Atomic Energy, Bombay (India); p. 79-81; 1977; p. 79-81; Department of Atomic Energy; Bombay; Nuclear physics and solid state physics symposium; Ahmedabad, India; 27 - 31 Dec 1976
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Book
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Viola, V.E.; Kwiatkowski, K.; Yennello, S.J.; Natowitz, J.B., E-mail: viola@indiana.edu
arXiv e-print [ PDF ]2006
arXiv e-print [ PDF ]2006
AbstractAbstract
[en] In [V.E. Viola et al., Phys. Rev. Lett. 93 (2004) 132701, D.S. Bracken et al., Phys. Rev. C 69 (2004) 034612] the observed decrease in spectral peak energies of IMFs emitted from hot nuclei was interpreted in terms of a breakup density that decreased with increasing excitation energy. Subsequently, Raduta et al. [Ad. Raduta et al., Phys. Lett. B 623 (2005) 43] performed MMM simulations that showed decreasing spectral peaks could be obtained at constant density. In this Letter we point out that this apparent inconsistency is due to a selective comparison of theory and data that overlooks the evolution of the fragment multiplicities as a function of excitation energy
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S0370-2693(06)00487-4; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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[en] The theoretical models of the cluster structures of the light neutron-rich nuclei as well as the corresponding physical mechanism and experimental approaches by breakup reaction have been introduced,which may serve as references for possible experimental studies of the cluster structure of light neutron-rich nuclei. (authors)
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7 figs., 2 tabs., 31 refs.
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Journal Article
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Nuclear Physics Review; ISSN 1007-4627;
; v. 26(4); p. 288-293

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