Recent Articles

Effects of imaginary potentials in a three-body deuteron-nucleus scattering model

N. Austern, J. P. Farrell, Jr., K. Kabir, and C. M. Vincent

Phys. Rev. C 18, 1577 (1978) - Published 1 October, 1978

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We test the sensitivity of a three-body theory of deuteron-nucleus reactions to the imaginary parts of the nucleon-nucleus potentials on which the theory is based, by switching off the imaginary potentials in a previous approximate three-body model. Absorption due to deuteron breakup tends to replace the omitted optical potential absorption, with the result that the $l_{n} = 2$ deuteron stripping cross section remains qualitatively unchanged. However, the mechanism of absorption is entirely different.

NUCLEAR REACTIONS Scattering theory, effects of imaginary potentials in three-body deuteron-nucleus model.

Identification of the lowest $3^{-}$ collective level in ${}^{116}{Cd}$

L. F. Hansen, F. S. Dietrich, and R. P. Koopman

Phys. Rev. C 18, 1582 (1978) - Published 1 October, 1978

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$γ$ rays from the ${}^{116}{Cd} (p, p^{'} γ)$ reaction have been measured with a Ge(Li) detector from $E_{p} = 5 to 20$ MeV, and excitation functions of the decays of the 1917-, 1923-, and 1930-keV triplet to the 513-keV 2+ level have been extracted. Only the decay of the 1923-keV level has an excitation function consistent with a component predicted by a coupled-channel calculation for the excitation of a $3^{-}$ collective level. The sum of the cross sections for the remaining two $γ$ rays is 90% of that for the decay of the 1923-keV level at $E_{p} = 5$ MeV, decreasing to about 20% at 20 MeV.

NUCLEAR REACTIONS ${}^{116}{Cd} (p, p^{'} γ)$ , $E_{p} = 5 - 20$ MeV; measured excitation functions for the 1403, 1409, and 1416 keV $γ$ rays. Deduced excitation energy of the lowest $3^{-}$ collective level as 1923 keV. Correction of ∼20% to the value of $β_{3}$ obtained from ( $p, p^{'}$ ) measurements.

Mass of ${}^{67}{Ni}$

R. T. Kouzes, D. Mueller, and C. Yu

Phys. Rev. C 18, 1587 (1978) - Published 1 October, 1978

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${}^{58}{Ni} (p, α) {}^{55}{Co}$ reaction and levels of ${}^{55}{Co}$

P. L. Jolivette and C. P. Browne

Phys. Rev. C 18, 1590 (1978) - Published 1 October, 1978

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The ${}^{58}{Ni} (p, α) {}^{55}{Co}$ reaction was used to measure both direct and compound cross sections for nuclear levels in ${}^{55}{Co}$ . The primary proton hole strengths are in the ground ( $1 f_{\frac{7}{2}}$ ), 2919-keV ( $2 s_{\frac{1}{2}}$ ), and 3563-keV ( $1 d_{\frac{3}{2}}$ ) states whose energies agree well with those predicted by systematics. Cross sections for the same hole states were also measured in ${}^{57, 59, 61}{Co}$ . A Hauser-Feshbach calculation indicates significant deviation from the ( $2 J + 1$ ) rule for compound nuclear states. The largest cross section occurs for $J = \frac{7}{2}$ states. Thus states with larger experimental cross sections can be identified as doublets, e.g., the 2919- and 2974-keV states.

NUCLEAR REACTIONS ${}^{58, 60, 62, 64}{Ni} (p, α)$ , $E = 15 - 17$ MeV; measured $σ (θ)$ . Identified proton hole states, DWBA analysis. Hauser-Feshbach analysis. Enriched targets.

Electromagnetic form factors of odd- $A$ axially symmetric deformed nuclei

E. Moya de Guerra and A. E. L. Dieperink

Phys. Rev. C 18, 1596 (1978) - Published 1 October, 1978

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Expressions for electron scattering form factors for odd- $A$ deformed nuclei are derived by projecting states with definite angular momentum from an axially symmetric intrinsic wave function. Through an expansion of the multipole matrix elements in terms of $\frac{1}{〈 {J_{y}}^{2} 〉}$ both single-particle and collective contributions are taken into account in a systematic way. Selection rules are discussed and some schematic calculations of magnetic form factors are presented for ${}^{25}{Mg}$ and ${}^{181}{Ta}$ .

NUCLEAR REACTIONS Electromagnetic form factors of odd- $A$ deformed nuclei; projected Hartree-Fock approximation. Schematic calculations of transverse form factors for ${}^{181}{Ta}$ and ${}^{25}{Mg}$ .

Nuclear resonance fluorescence in ${}^{142}{Nd}$

F. R. Metzger

Phys. Rev. C 18, 1603 (1978) - Published 1 October, 1978

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The resonant scattering of electron bremsstrahlung by an enriched sample of ${}^{142}{Nd}$ has been studied for photon energies of up to 5 MeV. It provides estimates of the radiative widths for 13 levels. Based on the relative yields at scattering angles of 96° and 126°, unambiguous spin assignments were made to 6 of these levels. Where feasible, the yield measurements were supplemented by self-absorption data and by linear polarization studies. For the strongest excitation, at 3.425 MeV, the resonance fluorescence experiments led to its identification as a $1^{-}$ state with a radiative width $Γ_{0} = 370 \pm 45$ MeV. The corresponding $E 1$ strength is comparable to the $E 1$ strengths measured in other even-even $N = 82$ nuclei for the $1^{-}$ member of the quintuplet arising from the coupling of the lowest octupole vibration to the $2_{1}^{+}$ level. The sum of the excitation energies of the $2_{1}^{+}$ state and the $3_{1}^{-}$ state in ${}^{142}{Nd}$ is consistent with such an interpretation of the 3.425-MeV level.

NUCLEAR REACTIONS ${}^{142}{Nd} (γ, γ)$ , bremsstrahlung $1.85 MeV <~ E_{e} <~ 5.0 MeV$ ; measured $σ (96 °)$ and $σ (126 °)$ , self-absorption, linear polarization; deduced $\frac{g {Γ_{0}}^{2}}{Γ}$ , $J$ , $π$ . Enriched target.

Deformation change at $N = 89$ : Proton inelastic scattering at 12 MeV on ${}^{151, 152, 153}{Eu}$

Robert G. Lanier, Lloyd G. Mann, Gordon L. Struble, Ivan D. Proctor, and Dale W. Heikkinen

Phys. Rev. C 18, 1609 (1978) - Published 1 October, 1978

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Scattered protons from ${}^{151, 152, 153}{Eu}$ were measured with an Enge split-pole spectrograph at a bombarding energy of 12 MeV. Rotational states up to $I^{π} = 7^{-}$ were observed in ${}^{152}{Eu}$ . Values of the deformation parameters were extracted from the scattering data using distorted-wave and coupled-channels techniques. The analysis suggests values of $β_{2}$ for ${}^{151, 152, 153}{Eu}$ to be 0.13, 0.28, and 0.28, respectively. For ${}^{152, 153}{Eu}$ $β_{4}$ is found to be +0.06. The data for ${}^{152}{Eu}$ suggest that the low-lying members of the $K = 4^{-}$ , [ $π \frac{3}{2} (411), ν \frac{11}{2} (505)$ ] band are populated in the ( $p, p^{'}$ ) reaction. This population is consistent with estimates of the degree of Coriolis mixing of this band with the $K = 3^{-}$ , [ $π \frac{5}{2} (413), ν \frac{11}{2} (505)$ ] ground band.

NUCLEAR REACTIONS ${}^{151, 152, 153}{Eu} (p, p^{'})$ , $E_{p} = 12$ MeV; measured $E_{p^{'}}$ and $σ (θ)$ , split-pole spectrograph; DWBA and couple-channel analyses; deduced levels, $J^{π}$ , $β_{2}$ , and $β_{4}$ ; isotopically enriched and radioactive targets.

NUCLEAR STRUCTURE ${}^{152}{Eu}$ , assigned Nilsson configurations.

Energy levels in ${}^{57}{Ni}$ from a study of the ${}^{59}{Ni} (p, t) {}^{57}{Ni}$ reaction

H. Nann, A. Saha, and S. Raman

Phys. Rev. C 18, 1619 (1978) - Published 1 October, 1978

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Energy levels in ${}^{57}{Ni}$ up to an excitation energy of 9 MeV have been studied by the ${}^{59}{Ni} (p, t) {}^{57}{Ni}$ reaction at 40 MeV bombarding energy. An energy resolution of 10-15 keV for the triton groups permitted the identification of about 50 new levels. Unambigous spin and parity assignments of $\frac{3}{2^{-}}$ are made to the levels at 0.00, 3.01, 4.92, and 5.19 MeV on the basis of an $L = 0$ admixture in the angular distributions. Values of the orbital angular momentum $L$ transferred to several states have been deduced.

NUCLEAR REACTIONS ${}^{59}{Ni} (p, t)$ , $E = 40$ MeV; measured $σ (θ)$ . ${}^{57}{Ni}$ deduced levels, $L$ , $J^{π}$ . DWBA analysis. Enriched target.

Microscopic analysis of the three-particle transfer reaction ${}^{92}{Zr} (p, α) {}^{89}Y$

H. Guyer, V. Meyer, H. H. Müller, W. Reichart, H. Jasicek, H. Oberhummer, P. Riehs, R. Wagner, and W. Pfeifer

Phys. Rev. C 18, 1626 (1978) - Published 1 October, 1978

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The reaction ${}^{92}{Zr} (p, α) {}^{89}Y$ is analyzed by applying a microscopic theory to the three-particle transfer reaction. Good fits to the angular distributions are obtained for the transitions to the four low-lying states of ${}^{89}Y$ . Relative cross sections of all four transitions, calculated from wave functions given in the literature, are strongly influenced by core-excited configurations. With their inclusion the calculations are in excellent agreement with the experiment. It is thus shown that in the microscopic description the ( $p, α$ ) reaction is a sensitive tool for testing wave functions.

NUCLEAR REACTIONS ${}^{92}{Zr} (p, α)$ ; $E = 35$ MeV, measured $σ (θ)$ ; microscopic DWBA analysis; ${}^{92}{Zr}$ , ${}^{89}Y$ test of shell model wave functions.

Yrast decay schemes from heavy-ion + ${}^{48}{Ca}$ fusion-evaporation reactions: IV: ${}^{53}{Cr}$ , ${}^{54}V$ , ${}^{62}{Co}$ , and ${}^{61 - 63}{Ni}$

E. K. Warburton, J. W. Olness, A. M. Nathan, and A. R. Poletti

Phys. Rev. C 18, 1637 (1978) - Published 1 October, 1978

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Fusion-evaporation reactions induced by beams of 25-55 MeV ${}^{9}{Be}$ and ${}^{18}O$ on an isotopically enriched ${}^{48}{Ca}$ target have been used to populate high-spin yrast levels in ${}^{53}{Cr}$ , ${}^{54}V$ , ${}^{62}{Co}$ , and ${}^{61 - 63}{Ni}$ . Measurements consisted of $γ$ -ray excitation functions, angular distributions, $γ - γ$ coincidences, and recoil-distance and Doppler shift lifetime measurements, from which were deduced the energy levels, $γ$ -ray branching ratios, most probable spin-parity assignments, and level lifetimes.

NUCLEAR REACTIONS ${}^{48}{Ca} ({}^{9}{Be}, x n, y p) {}^{53}{Cr}$ and ${}^{54}V$ . ${}^{48}{Ca} ({}^{18}O, x n) {}^{61 - 63}{Ni}$ and ${}^{48}{Ca} ({}^{18}O, 3 n, p) {}^{62}{Co}$ . $E = 25 - 55$ MeV; measured $σ (E, E_{γ})$ and coin; deduced levels; measured $σ (E_{γ,} θ)$ ; deduced $J^{π}$ for high-spin levels; measured RDM and DSA; deduced $τ_{m}$ , ${| M (M 1) |}^{2}$ and ${| M (E 2) |}^{2}$ . Enriched targets, Ge(Li) detectors.

Relative thresholds for production of iodine isotopes from fusion and transfer-induced fission reactions

M. de Saint-Simon, R. J. Otto, and G. T. Seaborg

Phys. Rev. C 18, 1651 (1978) - Published 1 October, 1978

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The reaction of ${}^{40}{Ar}$ ions with energies from 212 to 340 MeV impinging on a thick ${}^{238}U$ target has been studied using radiochemical methods. The formation cross sections of iodine isotopes were measured and converted to independent yields from which isotopic distributions were derived. The observed shape of the iodine distributions is attributed to entrance channel mechanisms: quasielastic transfer, deep inelastic transfer, and complete fusion, each followed by fission. The width and shape of the complete fusion component are found to be consistent with the statistical model for fission and a standard evaporation code for the fragment deexcitation. The threshold for production of iodine isotopes by the complete fusion reaction is found to be at least 8 to 12 MeV higher in energy than the barrier for the production of iodine isotopes by the quasielastic transfer reaction. These barriers are compared with theoretical predictions.

NUCLEAR REACTIONS, FISSION ${}^{238}U ({}^{40}{Ar}, X) I$ , $E_{lab} = 212, 226, 240, 250, 270, 290, 340$ MeV; measured $σ$ (iodine isotopes); deduced $σ$ (independent yield iodine isotopes), relative thresholds for complete fusion and quasielastic transfer.

Sequential amplitudes in heavy-ion induced two-proton transfer reactions

P. P. Tung, K. A. Erb, M. W. Sachs, G. B. Sherwood, R. J. Ascuitto, and D. A. Bromley

Phys. Rev. C 18, 1663 (1978) - Published 1 October, 1978

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Angular distributions have been measured for the reactions ${}^{88}{Sr}$ ( ${}^{16}O$ , ${}^{14}C$ ) ${}^{90}{Zr}$ and ${}^{90}{Zr}$ ( ${}^{16}O$ , ${}^{14}C$ ) ${}^{92}{Mo}$ at 80 MeV, and ${}^{88}{Sr}$ ( ${}^{12}C$ , ${}^{10}{Be}$ ) ${}^{90}{Zr}$ and ${}^{90}{Zr}$ ( ${}^{12}C$ , ${}^{10}{Be}$ ) ${}^{92}{Mo}$ at 60 MeV. The data were analyzed with full recoil, coupled-channel Born approximation calculations, in which both direct (one-step) and sequential (two-step) reaction routes were considered. Detailed shell model wave functions were used to construct all form factors. The calculated sequential contributions to the cross sections were found to be significantly larger than those associated with direct transfer, and inclusion of the two-step routes substantially improved agreement with experiment. The calculated angular distribution shapes were found to depend on both the intermediate $Q$ value of the sequential process, and also on the microscopic configurations involved in the transfer. In addition, a previously unreported configuration dependence of the recoil corrections was noted in the calculations.

NUCLEAR REACTIONS ${}^{88}{Sr}$ ( ${}^{16}O$ , ${}^{16}O$ ), ${}^{88}{Sr}$ ( ${}^{16}O$ , ${}^{14}C$ ), ${}^{90}{Zr}$ ( ${}^{16}O$ , ${}^{16}O$ ), ${}^{90}{Zr}$ ( ${}^{16}O$ , ${}^{14}C$ ), $E = 80$ MeV; ${}^{88}{Sr}$ ( ${}^{12}C$ , ${}^{12}C$ , ${}^{12}C$ ), ${}^{88}{Sr}$ ( ${}^{12}C$ , ${}^{10}{Be}$ ), ${}^{90}{Zr}$ ( ${}^{12}C$ , ${}^{12}C$ ), ${}^{90}{Zr}$ ( ${}^{12}C$ , ${}^{10}{Be}$ ), $E = 60$ MeV; enriched targets, measured $σ (θ)$ . Finite range DWBA and CCBA analyses of direct and sequential transfer, compared with data.

Multipole expansions in exact finite-range calculations of two-nucleon transfer reactions between heavy ions

Tadashi Takemasa

Phys. Rev. C 18, 1677 (1978) - Published 1 October, 1978

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A method is developed for calculating microscopic form factors for two-nucleon transfer reactions between heavy ions in the distorted-wave Born approximation. This method utilizes a multipole expansion of the two-nucleon overlap integrals in terms of the relative angular momentum of a transferred nucleon pair, which is found to converge very rapidly. Sample calculations are carried out for the reaction ${}^{48}{Ca}$ ( ${}^{18}O$ , ${}^{16}O$ ) ${}^{50}{Ca}$ at $E_{lab} = 50$ MeV, leading to the ground and excited states. The calculations underpredict the experimental cross sections by a factor of about 10 for the $0_{1}^{+}$ , $2_{1}^{+}$ , and $2_{2}^{+}$ state transitions. It is also found that the singlet ( $S = 0$ ) and triplet ( $S = 1$ ) two-nucleon transfers contribute about equally to the cross section.

NUCLEAR REACTIONS Multipole expansion, microscopic form factor, finite-range full recoil, DWBA, ${}^{48}{Ca}$ ( ${}^{18}O$ , ${}^{16}O$ ) ${}^{50}{Ca}$ $E_{lab} = 50$ MeV, 0+ ground state, $2_{1}^{+}$ , $2_{2}^{+}$ , and $3^{-}$ excited states.

Total fusion cross section for the ${}^{16}O$ + ${}^{16}O$ system

I. Tserruya, Y. Eisen, D. Pelte, A. Gavron, H. Oeschler, D. Berndt, and H. L. Harney

Phys. Rev. C 18, 1688 (1978) - Published 1 October, 1978

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Total fusion cross sections $σ_{F}$ have been measured for ${}^{16}O$ + ${}^{16}O$ at bombarding energies 27-66 MeV using the $E - Δ E$ or the time-of-flight techniques. The fusion excitation function shows oscillations in agreement with the resonances produced in the total reaction cross section by a surface-transparent potential. The results are compared to those obtained via the $γ$ -ray technique and the importance of direct decay to ground states is discussed. Mass and total angular distributions are well reproduced by statistical model calculations which take angular momentum into account explicity. Barrier and critical parameters are extracted from the average energy behavior of $σ_{F}$ . No evidence for shell effects as predicted by Glas and Mosel is found on the measured fusion cross sections.

NUCLEAR REACTIONS Complete fusion, ${}^{16}O$ + ${}^{16}O$ , $E_{lab} = 27 - 66$ MeV; measured fusion excitation function; statistical model analysis; extracted barrier and critical parameters.

Fast neutron fission of ${}^{240}{Pu}$

William A. Myers, M. V. Kantelo, R. L. Osborne, A. L. Prindle, and D. R. Nethaway

Phys. Rev. C 18, 1700 (1978) - Published 1 October, 1978

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We have measured the mass-yield distribution from the fission of ${}^{240}{Pu}$ induced by fast neutrons from a plutonium metal critical assembly. Measurements were made for 44 fission products from ${}^{72}{Zn}$ to ${}^{169}{Er}$ , from which we calculated total chain yields for 36 mass numbers and constructed a mass-yield curve. Absolute fission yields were obtained with an accuracy of about 5% by using the ${}^{235}U (n, f)$ monitor reaction and by the requirement of unit total yield in each half of the mass-yield distribution. The peak-to-valley ratio is about 150. Several independent fission yields were measured and $Z_{p}$ values inferred from these measurements are in good agreement with those estimated from independent-yield systematics.

NUCLEAR REACTIONS, FISSION ${}^{240}{Pu} (n, f)$ , $E = d e g r a d e d f i s s i o n - s p e c t r u m d i s t r i b u t i o n$ ; measured fission yields, deduced fission mass distribution. Measured independent fission yields and partial isomeric yields.

Subbarrier resonances in fission of ${}^{234}U$ , ${}^{236}U$ , and ${}^{240}{Pu}$

P. D. Goldstone, F. Hopkins, R. E. Malmin, and P. Paul

Phys. Rev. C 18, 1706 (1978) - Published 1 October, 1978

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The subbarrier fission probabilities of ${}^{234}U$ , ${}^{236}U$ , and ${}^{240}{Pu}$ have been studied using the ( $d, pf$ ) reaction, with improved statistics over previous measurements. A number of previously unidentified resonances have been found in ${}^{236}U$ and ${}^{240}{Pu}$ ; in addition, a shelf or plateau from 4.0 to 4.5 MeV in the fission probability of ${}^{234}U$ has been observed. The fission probabilities have been analyzed using the doorway-state model, and barrier parameters, transition state energies, and the energies of $K^{π} = 0^{+}$ fission vibrations have been determined. The systematic behavior of transition state and $K^{π} = 0^{+}$ resonance energies with varying $N$ and $Z$ is discussed.

NUCLEAR REACTIONS, FISSION ${}^{233, 235}U (d, p f)$ , ${}^{239}{Pu} (d, p f)$ , $E_{d} = 11 - 17$ MeV, measured $σ (E_{p}, - f coin)$ , deduced vibrational spectrum for $E_{x} = 4.0 - 6$ MeV.

Doorway-state approach to the calculation of fission widths

P. D. Goldstone and P. Paul

Phys. Rev. C 18, 1733 (1978) - Published 1 October, 1978

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An expression for the fission width of actinide nuclei is obtained, using a model in which vibrations in the fission degree of freedom are considered to be doorway states for fission. The coupling of these states to compound states in both potential wells is considered explicitly. Comparisons to other models for the calculations of the fission widths are made.

NUCLEAR REACTIONS, FISSION Calculate $f$ probability $P_{f} (E_{x})$ for ( $d, pf$ ) reaction.

Two-parameter study of ${}^{236}U$ fission using thin-film scintillation detectors

N. N. Ajitanand, K. N. Iyengar, and S. R. S. Murthy

Phys. Rev. C 18, 1745 (1978) - Published 1 October, 1978

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A new technique involving detection of both fragments associated with each fission event by two thin-film scintillation detectors is investigated to obtain information about fragment mass and energy. The functional behavior of the film response to fission fragments of specified $\frac{E}{M}$ and $Z$ is obtained by combining the specific luminescence and specific energy loss data for heavy ions. The analysis of the scintillation data gives fragment mass and energy distributions and mass-energy correlations whose main features are in good agreement with those of semiconductor detector measurements. In addition it is found that the scintillation data are capable of revealing information on the average charge to mass relation of the fragments in the symmetric region.

NUCLEAR REACTIONS, FISSION Fragment mass-energy investigation with thin-film scintillation detectors.

Pion-induced double charge exchange on ${}^{18}O$

D. A. Sparrow and A. S. Rosenthal

Phys. Rev. C 18, 1753 (1978) - Published 1 October, 1978

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The reaction ${}^{18}O (π^{+}, π^{-})$ ${}^{18}{Ne}$ (g.s.) is calculated using the optical model, including coupling through the 0+, 2+, and 4+ states in ${}^{18}F$ . In addition to the analog, the 2+ and 4+ intermediate states are found to be quite important between 100 and 200 MeV. Good agreement is obtained with the experimental cross sections at 0°.

NUCLEAR REACTIONS ${}^{18}O (π^{+}, π^{0})$ ${}^{18}F (lowest T = 1 levels)$ , $T_{π} = 139$ , ${}^{18}O (π^{+}, π^{-}) {}^{18}{Ne} (g . s .)$ $T_{π} = 100, 139, 187$ . Calculated $σ (θ)$ .

Analysis of 0.8-GeV polarized-proton elastic scattering from ${}^{208}{Pb}$ , ${}^{90}{Zr}$ , ${}^{58}{Ni}$ , and ${}^{12}C$

L. Ray, G. W. Hoffmann, G. S. Blanpied, W. R. Coker, and R. P. Liljestrand

Phys. Rev. C 18, 1756 (1978) - Published 1 October, 1978

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Differential cross section and analyzing power data for elastic scattering of 0.8-GeV polarized protons from ${}^{12}C$ , ${}^{58}{Ni}$ , ${}^{90}{Zr}$ , and ${}^{208}{Pb}$ have been analyzed in terms of the Kerman-McManus-Thaler formalism using spin-dependent nucleon-nucleon scattering amplitudes. The derived results for nuclear matter densities are in good agreement with theoretical predictions. Uncertainties in the deduced neutron distributions are discussed.

NUCLEAR REACTIONS ${}^{12}C$ , ${}^{58}{Ni}$ , ${}^{90}{Zr}$ , and ${}^{208}{Pb}$ ( $p, p$ ), $E = 0.8$ GeV; cross section and analyzing power; Kerman, McManus, and Thaler spin-dependent optical potential analysis; deduced neutron densities and rms radii; errors in radii given.

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Recent Articles

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Recent Issues

Effects of imaginary potentials in a three-body deuteron-nucleus scattering model

Identification of the lowest $3^{-}$ collective level in ${}^{116}{Cd}$

Mass of ${}^{67}{Ni}$

${}^{58}{Ni} (p, α) {}^{55}{Co}$ reaction and levels of ${}^{55}{Co}$

Electromagnetic form factors of odd- $A$ axially symmetric deformed nuclei

Nuclear resonance fluorescence in ${}^{142}{Nd}$

Deformation change at $N = 89$ : Proton inelastic scattering at 12 MeV on ${}^{151, 152, 153}{Eu}$

Energy levels in ${}^{57}{Ni}$ from a study of the ${}^{59}{Ni} (p, t) {}^{57}{Ni}$ reaction

Microscopic analysis of the three-particle transfer reaction ${}^{92}{Zr} (p, α) {}^{89}Y$

Yrast decay schemes from heavy-ion + ${}^{48}{Ca}$ fusion-evaporation reactions: IV: ${}^{53}{Cr}$ , ${}^{54}V$ , ${}^{62}{Co}$ , and ${}^{61 - 63}{Ni}$

Relative thresholds for production of iodine isotopes from fusion and transfer-induced fission reactions

Sequential amplitudes in heavy-ion induced two-proton transfer reactions

Multipole expansions in exact finite-range calculations of two-nucleon transfer reactions between heavy ions

Total fusion cross section for the ${}^{16}O$ + ${}^{16}O$ system

Fast neutron fission of ${}^{240}{Pu}$

Subbarrier resonances in fission of ${}^{234}U$ , ${}^{236}U$ , and ${}^{240}{Pu}$

Doorway-state approach to the calculation of fission widths

Two-parameter study of ${}^{236}U$ fission using thin-film scintillation detectors

Pion-induced double charge exchange on ${}^{18}O$

Analysis of 0.8-GeV polarized-proton elastic scattering from ${}^{208}{Pb}$ , ${}^{90}{Zr}$ , ${}^{58}{Ni}$ , and ${}^{12}C$

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