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Charmonium mass in nuclear matter
(American Physical Society, 2003)
The mass shift of charmonium states in nuclear matter is studied in the perturbative QCD approach. The leading-order effect due to the change of gluon condensate in nuclear matter is evaluated using the leading-order QCD ...
Isoscalar E0 strength between 6 and 11 MeV in Ca-40
(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 ...
Asymptotic normalization coefficients for 14N+p -> O-15 and the astrophysical S factor for N-14(p, gamma)O-15
(American Physical Society, 2003)
The N-14(p,gamma)O-15 reaction, which controls energy production in the CNO cycle, has contributions from both resonance and direct captures to the ground and excited states. The overall normalization of the direct captures ...
Internal conversion coefficients in (134)Cs, (137)Ba, and (139)La: A precise test of theory
(American Physical Society, 2008)
Recently we measured the ratio of K-shell internal conversion coefficients, alpha(K), for the 127.5-keV E3 transition in (134)Cs and the 661.7-keV M4 transition in (137)Ba. We here report a measurement of the 165.9-keV M1 ...
Half-life of the electron-capture decay of (97)Ru: Precision measurement shows no temperature dependence
(American Physical Society, 2009)
We have measured the half-life of the electron-capture (ec) decay of (97)Ru in a metallic environment, both at low temperature (19 K), and also at room temperature. We find the half-lives at both temperatures to be the ...
Giant resonances in O-16
(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 Ti-46,Ti-48
(American Physical Society, 2006)
The giant resonance region from 9 MeV < E-x < 55 MeV in Ti-46 and Ti-48 has been studied with inelastic scattering of 240 MeV alpha particles at small angles including 0(degrees). Isoscalar monopole strength in Ti-46 (Ti-48) ...
Improved determination of the astrophysical S(0) factor of the (15)N(p,alpha)(12)C reaction
(American Physical Society, 2009)
We present new improved R matrix fits of direct data and indirect Trojan Horse data for the (15)N(p,alpha)(12)C reaction and provide a more accurate recommended value of S(0)=73.0 +/- 5.0 MeV b from direct Redder data [A. ...
Three-body decay of (6)Be
(American Physical Society, 2009)
Three-body correlations for the ground-state decay of the lightest two-proton emitter (6)Be are studied both theoretically and experimentally. Theoretical studies are performed in a three-body hyperspherical-harmonics ...
Structure of N-12 using C-11+p resonance scattering
(American Physical Society, 2006)
The level structure of N-12 has been investigated from 2.2 to 11.0 MeV in excitation energy using a C-11+p resonance interaction with thick targets and inverse kinematics. Excitation functions were fitted using an R-matrix ...