Browsing by Author "Clark, HL"

Now showing items 1-18 of 18

    • Asymptotic normalization coefficients for B-10->Be-9+p 
      Mukhamedzhanov, AM; Clark, HL; Gagliardi, Carl A.; Lui, YW; Trache, L.; Tribble, Robert E.; Xu, HM; Zhou, XG; Burjan, V.; Cejpek, J.; Kroha, V.; Carstoiu, F. (American Physical Society, 1997)
      The differential cross sections for the reactions Be-9(B-10, B-10)Be-9 and Be-9(B-10,Be-9)B-10 have been measured at an incident energy of 100 MeV. The elastic scattering data have been used to determine the optical model ...
    • Asymptotic normalization coefficients for B-8 -> Be-7+p from a study of Li-8 -> Li-7+n 
      Trache, L.; Azhari, A.; Carstoiu, F.; Clark, HL; Gagliardi, Carl A.; Lui, YW; Mukhamedzhanov, AM; Tang, X.; Timofeyuk, N.; Tribble, Robert E. (American Physical Society, 2003)
      Asymptotic normalization coefficients (ANCs) for Li-8-->Li-7+n have been extracted from the neutron transfer reaction C-13(Li-7,Li-8)C-12 at 63 MeV. These are related to the ANCs in B-8-->Be-7 + p using charge symmetry. ...
    • Asymptotic normalization coefficients for C-13+p -> N-14 
      Trache, L.; Azhari, A.; Clark, HL; Gagliardi, Carl A.; Lui, YW; Mukhamedzhanov, AM; Tribble, Robert E.; Carstoiu, F. (American Physical Society, 1998)
      The C-13(N-14,C-13)N-14 proton exchange reaction has been measured at an incident energy of 162 MeV. Angular distributions were obtained for proton transfer to the ground and low-lying excited states in N-14. Elastic ...
    • Compression mode resonances in Zr-90 
      Youngblood, David H.; Lui, YW; John, B.; Tokimoto, Y.; Clark, HL; Chen, X. (American Physical Society, 2004)
      The giant resonance region from 10 MeV < E-x < 55 MeV in Zr-90 has been studied with inelastic scattering of 240 MeV alpha particles at small angles including 0degrees. The isoscalar monopole resonance was found to contain ...
    • Folding model analysis of the excitation of low-lying states and the high energy octupole resonance in Sn-116 by 240 MeV alpha scattering 
      Clark, HL; Lui, YW; Youngblood, David H. (American Physical Society, 1998)
      The sum rule strength of the high energy octupole resonance (HEOR) and the transition rates of low-lying 2(+) and 3(-) states of Sn-116, excited by 240 MeV alpha scattering, have been determined from deformed potential and ...
    • Giant monopole resonance strength in Si-28 
      Youngblood, David H.; Clark, HL; Lui, YW. (American Physical Society, 1998)
      The giant resonance region in Si-28 was studied with inelastic scattering of 240 MeV alpha particles at small angles including 0 degrees. The giant resonance peak extended from E-x=12 MeV to 35 MeV and E0 strength corresponding ...
    • Giant monopole strength in Ni-58 
      Lui, YW; Clark, HL; Youngblood, David H. (American Physical Society, 2000)
      The strength distribution of the giant monopole resonance in Ni-58 has been measured from E-x = 10 to 35 MeV using small-angle scattering of 240-MeV alpha particles. E0 strength corresponding to 74(-12)(+22)% of the E0 ...
    • Giant resonances in O-16 
      Lui, YW; Clark, HL; Youngblood, David H. (American Physical Society, 2001)
      Giant resonances in O-16 have been studied with inelastic scattering of 240 MeV alpha particles at small angles, Isoscalar E0, E1, and E2 strength corresponding to 48 +/- 10%, 32 +/- 7%, and 53 +/- 10%, of the respective ...
    • Giant resonances in Sn-112 and Sn-124: Isotopic dependence of monopole resonance energies 
      Lui, YW; Youngblood, David H.; Tokimoto, Y.; Clark, HL; John, B. (American Physical Society, 2004)
      The giant resonance region from 10 MeV <E-x< 55 MeV in Sn-112 and Sn-124 has been studied with inelastic scattering of 240 MeV ? particles at small angles including 0andDEG
    • High energy octupole resonance in Sn-116 
      Clark, HL; Youngblood, David H.; Lui, YW. (American Physical Society, 1996)
      The region of excitation energy from 7 less than or equal to E(x) less than or equal to 38 MeV in Sn-116 was studied with inelastic scattering of 240 MeV alpha particles. Parameters obtained for the isoscalar giant monopole ...
    • Isoscalar E0 strength between 6 and 11 MeV in Ca-40 
      Youngblood, David H.; Lui, YW; Clark, HL; Tokimoto, Y.; John, B. (American Physical Society, 2003)
      The region from 6<E-x<11 MeV in Ca-40 has been studied with inelastic scattering of 240 MeV alpha particles at small angles including 0degrees . Strength corresponding to 3.2+/-1.0% of the isoscalar E0 sum rule was identified ...
    • Isoscalar E0-E3 strength in Sn-116, Sm-144, Sm-154, and Pb-208 
      Youngblood, David H.; Lui, YW; Clark, HL; John, B.; Tokimoto, Y.; Chen, X. (American Physical Society, 2004)
      The giant resonance region from 10 MeV<E-x<55 MeV in Sn-116, Sm-144, Sm-154, and Pb-208 has been studied with inelastic scattering of 240 MeV alpha particles at small angles including 0degrees. Essentially all of the ...
    • Isoscalar electric multipole strength in C-12 
      John, B.; Tokimoto, Y.; Lui, YW; Clark, HL; Chen, X.; Youngblood, David H. (American Physical Society, 2003)
      The excitation region in C-12 below E-x=45 MeV was studied using 240 MeV alpha-particle scattering. Elastic scattering was measured from theta(c.m.)=3.8degrees to 49.4degrees and density dependant folding optical model ...
    • Isoscalar giant dipole resonance in Zr-90, Sn-116, and Pb-208 
      Clark, HL; Lui, YW; Youngblood, David H. (American Physical Society, 2001)
      Strength functions for isoscalar dipole excitations in Zr-90, Sn-116, and Pb-208 have been measured with inelastic scattering of 240 MeV alpha particles at small angles. The isoscalar E1 strength distribution in each nucleus ...
    • Isoscalar giant resonances for nuclei with mass between 56 and 60 
      Lui, YW; Youngblood, David H.; Clark, HL; Tokimoto, Y.; John, B. (American Physical Society, 2006)
      The giant resonance region from 10 MeV < E-x < 62 MeV in Fe-56, Ni-58, and Ni-60 has been studied with inelastic scattering of 240 MeV alpha particles at small angles, including 0 degrees. Most of the expected isoscalar ...
    • Isoscalar multipole strength in Cd-110 and Cd-116 
      Lui, YW; Youngblood, David H.; Tokimoto, Y.; Clark, HL; John, B. (American Physical Society, 2004)
      The giant resonance region from 10 MeV<E-x<55 MeV in Cd-110 and Cd-116 has been studied with inelastic scattering of 240 MeV alpha particles at small angles including 0degrees. In Cd-110(Cd-116), 88+21-13% (104+23-13%) of ...
    • Optical model potentials involving loosely bound p-shell nuclei around 10 MeV/nucleon 
      Trache, L.; Azhari, A.; Clark, HL; Gagliardi, Carl A.; Lui, YW; Mukhamedzhanov, AM; Tribble, Robert E.; Carstoiu, F. (American Physical Society, 2000)
      We present the results of a search for optical model potentials for use in the description of elastic scattering and transfer reactions involving stable and radioactive p-shell nuclei. This was done in connection with our ...
    • Tests of transfer reaction determinations of astrophysical S factors 
      Gagliardi, Carl A.; Tribble, Robert E.; Azhari, A.; Clark, HL; Lui, YW; Mukhamedzhanov, AM; Sattarov, A.; Trache, L.; Burjan, V.; Cejpek, J.; Kroha, V.; Piskor, S.; Vincour, J. (American Physical Society, 1999)
      The O-16(He-3,d)F-17 reaction has been used to determine asymptotic normalization coefficients for transitions to the ground and first excited states of F-17. Th, coefficients provide the normalization for the tails of the ...