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46 46

Elastic scattering and breakup of 17^F at 10 MeV/nucleon

Sep 22, 2013 09/13

by J. F. Liang; J. R. Beene; H. Esbensen; A. Galindo-Uribarri; J. Gomez del Campo; C. J. Gross; M. L. Halbert; P. E. Mueller; D. Shapira; D. W. Stracener; I. J. Thompson; R. L. Varner

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Angular distributions of fluorine and oxygen produced from 170 MeV 17^F incident on 208^Pb were measured. The elastic scattering data are in good agreement with optical model calculations using a double-folding potential and parameters similar to those obtained from 16^O+208^Pb. A large yield of oxygen was observed near \theta_lab=36 deg. It is reproduced fairly well by a calculation of the (17^F,16^O) breakup, which is dominated by one-proton stripping reactions. The discrepancy between our...
Source: http://arxiv.org/abs/nucl-ex/0106019v1

Arxiv.org

50 50

$Breakup of $^{17}$F on $^{208}$Pb near the Coulomb barrier$

Breakup of $^{17}$F on $^{208}$Pb near the Coulomb barrier

Sep 18, 2013 09/13

by J. F. Liang; J. R. Beene; A. Galindo-Uribarri; J. Gomez del Campo; C. J. Gross; P. A. Hausladen; P. E. Mueller; D. Shapira; D. W. Stracener; R. L. Varner; J. D. Bierman; H. Esbensen; Y. Larochelle

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Angular distributions of oxygen produced in the breakup of $^{17}$F incident on a $^{208}$Pb target have been measured around the grazing angle at beam energies of 98 and 120 MeV. The data are dominated by the proton stripping mechanism and are well reproduced by dynamical calculations. The measured breakup cross section is approximately a factor of 3 less than that of fusion at 98 MeV. The influence of breakup on fusion is discussed.
Source: http://arxiv.org/abs/nucl-ex/0212025v1

Arxiv.org

53 53

$Enhanced Fusion-Evaporation Cross Sections in Neutron-Rich $^{132}$Sn on $^{64}$Ni$

Enhanced Fusion-Evaporation Cross Sections in Neutron-Rich $^{132}$Sn on $^{64}$Ni

Sep 19, 2013 09/13

by J. F. Liang; D. Shapira; C. J. Gross; J. R. Beene; J. D. Bierman; A. Galindo-Uribarri; J. Gomez del Campo; P. A. Hausladen; Y. Larochelle; W. Loveland; P. E. Mueller; D. Peterson; D. C. Radford; D. W. Stracener; R. L. Varner

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Evaporation residue cross sections have been measured with neutron-rich radioactive $^{132}$Sn beams on $^{64}$Ni in the vicinity of the Coulomb barrier. The average beam intensity was $2\times 10^{4}$ particles per second and the smallest cross section measured was less than 5 mb. Large subbarrier fusion enhancement was observed. Coupled-channels calculations taking into account inelastic excitation and neutron transfer underpredict the measured cross sections below the barrier.
Source: http://arxiv.org/abs/nucl-ex/0304002v2

Arxiv.org

41 41

$Fusion of radioactive $^{132}$Sn with $^{64}$Ni$

Fusion of radioactive $^{132}$Sn with $^{64}$Ni

Sep 18, 2013 09/13

by J. F. Liang; D. Shapira; J. R. Beene; C. J. Gross; R. L. Varner; A. Galindo-Uribarri; J. Gomez del Campo; P. A. Hausladen; P. E. Mueller; D. W. Stracener; H. Amro; J. J. Kolata; J. D. Bierman; A. L. Caraley; K. L. Jones; Y. Larochelle; W. Loveland; D. Peterson

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Evaporation residue and fission cross sections of radioactive $^{132}$Sn on $^{64}$Ni were measured near the Coulomb barrier. A large sub-barrier fusion enhancement was observed. Coupled-channel calculations including inelastic excitation of the projectile and target, and neutron transfer are in good agreement with the measured fusion excitation function. When the change in nuclear size and shift in barrier height are accounted for, there is no extra fusion enhancement in $^{132}$Sn+$^{64}$Ni...
Source: http://arxiv.org/abs/0704.0780v2

Arxiv.org

52 52

Halo nucleus Be-11: A spectroscopic study via neutron transfer

Jul 20, 2013 07/13

by K. T. Schmitt; K. L. Jones; A. Bey; S. H. Ahn; D. W. Bardayan; J. C. Blackmon; S. M. Brown; K. Y. Chae; K. A. Chipps; J. A. Cizewski; K. I. Hahn; J. J. Kolata; R. L. Kozub; J. F. Liang; C. Matei; M. Matoš; D. Matyas; B. Moazen; C. Nesaraja; F. M. Nunes; P. D. O'Malley; S. D. Pain; W. A. Peters; S. T. Pittman; A. Roberts; D. Shapira; J. F. Shriner Jr; M. S. Smith; I. Spassova; D. W. Stracener; A. N. Villano; G. L. Wilson

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The best examples of halo nuclei, exotic systems with a diffuse nuclear cloud surrounding a tightly-bound core, are found in the light, neutron-rich region, where the halo neutrons experience only weak binding and a weak, or no, potential barrier. Modern direct reaction measurement techniques provide powerful probes of the structure of exotic nuclei. Despite more than four decades of these studies on the benchmark one-neutron halo nucleus Be-11, the spectroscopic factors for the two bound...
Source: http://arxiv.org/abs/1203.3081v2

Arxiv.org

15 15

Recent direct reaction experimental studies with radioactive tin beams

Jun 28, 2018 06/18

by K. L. Jones; S. Ahn; J. M. Allmond; A. Ayres; D. W. Bardayan; T. Baugher; D. Bazin; J. S. Berryman; A. Bey; C. Bingham; L. Cartegni; G. Cerizza; K. Y. Chae; J. A. Cizewski; A. Gade; A. Galindo-Uribarri; R. F. Garcia-Ruiz; R. Grzywacz; M. E. Howard; R. L. Kozub; J. F. Liang; B. Manning; M. Matos; S. McDaniel; D. Miller; C. D. Nesaraja; P. D. O'Malley; S. Padgett; E. Padilla-Rodal; S. D. Pain; S. T. Pittman; D. C. Radford; A. Ratkiewicz; K. T. Schmitt; A. Shore; M. S. Smith; D. W. Stracener; S....

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Direct reaction techniques are powerful tools to study the single-particle nature of nuclei. Performing direct reactions on short-lived nuclei requires radioactive ion beams produced either via fragmentation or the Isotope Separation OnLine (ISOL) method. Some of the most interesting regions to study with direct reactions are close to the magic numbers where changes in shell structure can be tracked. These changes can impact the final abundances of explosive nucleosynthesis. The structure of...
Topic: Nuclear Experiment
Source: http://arxiv.org/abs/1508.06531

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