Magnetic Analysis of Tritons and Alpha Particles Emitted from the Deuteron Bombardment of Teflon

Bedewi, F.A. El; Hussein, Itab Fadhil

doi:10.1088/0370-1298/70/4/301

Cited by 20 publications

(2 citation statements)

References 20 publications

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“…The measured de-excitation branching and angular distributions of the radiation from the N 14 (a, y)F 18 reaction strongly support a T = 1, 0+ assignment 8 With the single exception of the F 19^, *)F 18 measurements of El Bedewi and Hussein, 13 which suggest negative parity for the 0.94-Mev level, all of the available data are consistent with the assignments shown on the level diagram in Fig. 1.…”

supporting

confidence: 75%

F18Levels Near 1 Mev

1958

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show a large proton polarization in the transition region (i.e., between the first and second peak), such a polarization would be a very striking confirmation of Peierls's model. Of course the possibility exists that neither Peierls's model nor Wilson's model is correct. We expect that most other models 8 are likely to give a proton polarization substantially smaller than 80%. The energy and angular dependence of the proton polarization will throw further light on the nature of the second peak.

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supporting

confidence: 75%

F18Levels Near 1 Mev

1958

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“…At E d = 8.9 MeV, α-groups have been observed corresponding to the ground state of 10 B and to excited states at 0.72 ± 0.02 and 2.14 ± 0.02 MeV. No α-group was observed to the T = 1, 1.74-MeV state (1957EL12). See also (1951AS1A) and (1953SP1A).…”

mentioning

confidence: 88%

Energy Levels of Light Nuclei. V

1955

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1. He'(m m)He': E""=0. 95 (center of mass); mass defect = 12.92~0.05. 2. Li'(1 o)Hes: He'=He'+v+0. 97+0.05; mass defect = 12.94~0.05. 3. Li'(d He')He'. Qs --0.91&0. 09;mass defect= 12.85 0.09. 4. Li'(d o)He'. Qs --14.23&0.07; mass defect= 12.85 0.07. We adopt: He' mass defect=12. 92&0.08 Mev. I. (a) H'(d n)He4 Q =17.577 Zs 16. 63--(b) H'(1 e)He4The yield exhibits a pronounced maximum near E~=107 kev, with a cross section of 4.95&0.14 b (Ar 54) t Lsee also (Aj 52c)). Precise cross sections in the tange 8&=10 to 1700 kev are tabulated by (Ar 52d), ' E. P. Wigner and L. Eisenbud, Phys. Rev. 72, 29 (1947); T.Teichmann and E. P. Wigner, Phys. Rev. 87, 123 (1952).f' References are indicated by the erst two letters of the 6rst named author and are listed at the end of the article. VIII. Li6(y t)He' Q = -15.786 This reaction has not been observed with 17.6-Mev gammas. The cross section is &6&4pb (Ti 54b). Ix. Li~(e g')Li6 See Li'. Li'(e e')Li'. X. (a) Li'(p p')Li'* (b) Li'(d d')Li'* Proton and deuteron groups are observed corresponding to the state at 2.19 Mev. At Eq= 7.4 Mev (|I = 90'), no deuteron group corresponding to the presumed T= 1 state at 3.57 Mev is observed [(Br53h) and C. P. Browne, private communication). See also (Aj 52c). ENERGY LEVELS OF LIGHT NUCLEI Lie, Be6 He7, Li7XI. Li'(p d)Li' Q"= -5.010Deuteron groups have been observed corresponding to the ground state, and to levels at 2.2&0.2 and 3.7 &0.2 Mev (Fr 52). At E"=18 Mev, angular distributions of the deuterons to the ground state and the 2.19-Mev level, analyzed by pickup theory, indicate l"=1 and hence even parity, 7 &3, for both states (Re 54a).XII. Li'(d t)Li' Q = -0.988The angular distributions of the tritons, analyzed by pickup theory, indicates l"=1, and hence even parity for the ground state (Ho 53c, Le 54) and for the 2.19-Mev state (Le 54). At Eq 14.5 M-ev, the cross sections Ka

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Dispersion-equation approach to obtaining complex optical potentials for electron scattering

Valone

Thirumalai

Truhlar

2009

Int. J. Quantum Chem.

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The absorption part of a local optical potential for electron-He scattering is obtained from an energy-dependent polarization potential by numerically solving the dispersion relation relating the real and imaginary parts of the optical potential. The resulting optical model, with no empirical parameters, yields reasonably accurate total scattering cross sections for elastic plus inelastic scattering at impact energies in the 30-100 eV range.

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Magnetic Analysis of Tritons and Alpha Particles Emitted from the Deuteron Bombardment of Teflon

Cited by 20 publications

References 20 publications

F18Levels Near 1 Mev

F18Levels Near 1 Mev

Energy Levels of Light Nuclei. V

Dispersion-equation approach to obtaining complex optical potentials for electron scattering

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