Recent Articles

Off-shell $π N$ effects and the reaction ${}^{13}C (π^{+}, π^{0}) {}^{13}N$

H. Garcilazo

Phys. Rev. C 13, 1753 (1976) - Published 1 April, 1976

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We have calculated the pion single-charge-exchange reaction ${}^{13}C (π^{+}, π^{0}) {}^{13}N$ , using the distorted wave impulse approximation. We studied the influence of the off-shell effects by performing the calculation in momentum space with and without form factors in the $π N$ amplitude. We also studied the effect of changing the shape of the neutron distribution.

NUCLEAR REACTIONS ${}^{13}C (π^{+}, π^{0})$ , $E = 30 - 200$ MeV; calculated $σ (E)$

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Sensitivity of $π^{+}$ and $π^{-}$ inelastic scattering to differences in the neutron and proton amplitudes

C. L. Morris

Phys. Rev. C 13, 1755(R) (1976) - Published 1 April, 1976

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We derive an expression relating the ratio of the cross sections for $π^{+}$ and $π^{-}$ inelastic scattering to the ratio of the deformation parameters for the neutron and proton distributions. Calculations are described which determine the parameters in this relation, and the sensitivity of these parameters to the potential model used.

NUCLEAR REACTIONS Pion inelastic scattering. DWBA. Separate neutron and proton amplitudes.

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Calculation of electroexcitation cross sections in ${}^{12}C$ by a continuum shell model

Y. Kawazoe and T. Tsukamoto

Phys. Rev. C 13, 1759(R) (1976) - Published 1 April, 1976

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Electroexcitation of ${}^{12}C$ in the giant multipole resonance region is studied using the methods of nuclear reaction theory. The importance of using orthogonalized wave functions for calculations of differential cross sections is pointed out, especially for monopole excitations.

NUCLEAR REACTIONS ${}^{12}C (e, e^{'})$ , $E = 15 - 40$ MeV, $q = 0.3 - 1.7$ ${fm}^{- 1}$ ; calculated $C 0 - C 2$ strengths, new method for solving coupled-channel equations, orthogonalized wave functions.

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High-spin yrast levels in ${}^{39}{Ar}$

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

Phys. Rev. C 13, 1762(R) (1976) - Published 1 April, 1976

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Fusion-evaporation reactions induced by ${}^{18}O$ bombardment of ${}^{24}{Mg}$ , ${}^{26}{Mg}$ , and ${}^{27}{Al}$ targets with projectile energies of 20-60 MeV were used to populate high-spin states in ${}^{39}{Ar}$ . Our results suggest assignments of ${\frac{11}{2}}^{-}$ , ${\frac{13}{2}}^{+}$ , ${\frac{15}{2}}^{+}$ , and $\frac{17}{2}$ for ${}^{39}{Ar}$ levels at 2651, 3992, 4543, and 5536 keV, respectively. The excitation energies of these presumed yrast levels are compared to weak-coupling predictions.

NUCLEAR REACTIONS ${}^{24}{Mg} ({}^{18}O, 2 p n γ)$ , ${}^{26}{Mg} ({}^{18}O, α n γ)$ , ${}^{27}{Al} ({}^{18}O, α p n γ)$ , $E = 20 - 60$ MeV; measured $γ - γ$ coin; deduced levels in ${}^{39}{Ar}$ ; measured $σ (E_{γ}, θ)$ and $P_{γ}$ ; deduced $J^{π}$ for high-spin levels; measured Doppler shift; deduced $τ$ , ${| M (M L) |}^{2}$ . Enriched targets, Ge(Li) detectors.

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Prolate-oblate energy difference and shape variation in the $f - p$ shell

B. Castel and K. Goeke

Phys. Rev. C 13, 1765(R) (1976) - Published 1 April, 1976

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The importance of prolate-oblate potential energy difference in determining the structure of light- and medium-weight nuclei is examined in a Hartree-Fock-Bogoliubov calculation using the generator coordinate method. The results corroborate the earlier observations of Kumar regarding the correlation between the sign of the prolate-oblate energy difference and the crossing of the $2^{+}_{2}$ and $4^{+}$ states in even-even nuclei. Arguments based on time-dependent Hartree-Fock results are presented to support earlier observations regarding the predominance of prolate type quadrupole moments.

NUCLEAR STRUCTURE Prolate-oblate energy difference, generator coordinate method, effective mass calculation.

${}^{34}S (p, t) {}^{32}S$ reaction

H. Nann and B. H. Wildenthal

Phys. Rev. C 13, 1009 (1976) - Published 1 March, 1976

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Angular distributions of the ${}^{34}S (p, t) {}^{32}S$ reaction at $E_{p} = 40$ MeV have been measured for states in ${}^{32}S$ up to an excitation energy of 11 MeV. Assignments of the $L$ transfers on the basis of the characteristic shapes of the angular distributions yield several new spin and parity assignments for states in ${}^{32}S$ . Transitions to several unnatural parity states in ${}^{32}S$ were observed with a cross section of about 5 μb/sr. For transitions to the natural parity states distorted-wave analyses based on current shell-model wave functions were performed and compared with the experimental differential cross sections.

NUCLEAR REACTIONS ${}^{34}S (p, t)$ , $E_{p} = 40$ MeV; measured $σ (E_{t}, θ)$ ; enriched target. ${}^{32}S$ deduced levels, $L$ , $J$ , $π$ .

Measurement of the mass of ${}^{8}C$ by the ${}^{14}N$ ( ${}^{3}{He}$ , ${}^{9}{Li}$ ) reaction

R. G. H. Robertson, W. Benenson, E. Kashy, and D. Mueller

Phys. Rev. C 13, 1018 (1976) - Published 1 March, 1976

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The mass of the particle-unstable $T_{z} = - 2$ nuclide ${}^{8}C$ has been measured by means of the ${}^{14}N$ ( ${}^{3}{He}$ , ${}^{9}{Li}$ ) reaction, which has an observed cross section of about 5 nb ${sr}^{- 1}$ at 76 MeV. The mass excess found is 35.06 ± 0.05 MeV, and the width of the ${}^{8}C$ ground state is 290 ± 80 keV. The result for the mass excess is more precise than that obtained in a previous ( $α, {}^{8}{He}$ ) experiment and confirms that significant higher-order terms must be added to the isobaric multiplet mass equation to describe the mass-8 isobaric quintet.

NUCLEAR REACTIONS ${}^{14}N$ ( ${}^{3}{He}$ , ${}^{9}{Li}$ ), $E = 76$ MeV; measured $Q$ , $σ (θ)$ . ${}^{8}C$ obtained mass, $Γ$ . Deduced $a$ , $b$ , $c$ , $d$ , $e$ coefficients in IMME.

Off-shell equivalence in three-body scattering

D. D. Brayshaw

Phys. Rev. C 13, 1024 (1976) - Published 1 March, 1976

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Explicit relationships are derived connecting the author's boundary condition formalism to the Faddeev theory of three-body scattering. In particular, it is shown that suitable input to the boundary condition formalism can always be chosen so as to exactly reproduce the Faddeev amplitudes. This is also true in the presence of explicit three-body forces. It is further shown that such forces cannot be distinguished from off-shell properties of the two-particle interaction on the basis of three-particle scattering observables. A previous analysis of the $n - d$ breakup reaction is discussed in some detail.

NUCLEAR REACTIONS Three-body scattering theory, three-body forces, $N - d$ scattering.

Coulomb excitation of ${}^{113, 115}{In}$

W. K. Tuttle, III, P. H. Stelson, R. L. Robinson, W. T. Milner, F. K. McGowan, S. Raman, and W. K. Dagenhart

Phys. Rev. C 13, 1036 (1976) - Published 1 March, 1976

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Eight states in ${}^{113}{In}$ and eight states in ${}^{115}{In}$ were observed to be Coulomb excited with $α$ -particle and ${}^{16}O$ projectiles. Level energies, spins, $B (E 2)$ and $B (M 1)$ transition probabilities, and mean lives were obtained. The multiplet formed by $π g_{\frac{9}{2}}^{- 1} \otimes 2_{1}^{+} (Sn)$ was found, and the data confirm the coupling strength to be strong. In addition, one extra ${\frac{5}{2}}^{+}$ and one extra ${\frac{9}{2}}^{+}$ level were seen in each nucleus, along with $E 3$ Coulomb excitation of the ${\frac{3}{2}}^{-}$ levels. A firm basis for spin-parity assignments was found for all levels observed with the exception of a 1630.5 keV, ${\frac{9}{2}}^{+}$ level in ${}^{113}{In}$ . Three of the states in ${}^{113}{In}$ had not previously been observed in Coulomb excitation.

NUCLEAR REACTIONS ${}^{113, 115}{In} (α, α^{'} γ)$ and ${}^{113, 115}{In} ({}^{16}O, {}^{16}O^{'} γ)$ MeV; $E ({}^{16}O) = 42$ MeV; measured $E_{γ}$ , $I_{γ}$ , $I_{γ} (θ)$ , Doppler broadening. ${}^{113, 115}{In}$ deduced levels, $J$ , $π$ , $B (E 2)$ , $B (M 1)$ , $T_{\frac{1}{2}}$ . Enriched target.

Gamma decay of the first $T = \frac{3}{2}$ level in ${}^{41}{Sc}$

S. Fortier, H. Laurent, J. P. Schapira, M. S. Antony, and A. Knipper

Phys. Rev. C 13, 1049 (1976) - Published 1 March, 1976

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The first $T = \frac{3}{2}$ level in ${}^{41}{Sc}$ has been excited as a resonance in the ${}^{40}{Ca} (p, γ) {}^{41}{Sc}$ reaction, at incident energy $E_{p} = 4974 \pm 5$ keV. Transitions to the levels at 2.668, 3.415, 3.777, and 4.248 MeV have been observed, and their radiative widths determined. Multipole mixing ratios have been obtained from angular distribution measurements. The comparison between radiative strengths and $ft$ values for the $β^{+}$ decay of the ${}^{41}{Ti}$ ground state suggests that an important part of the ${[{(1 f_{\frac{7}{2}}^{2})}_{j = 1, t = 0} 1 d_{\frac{3}{2}}^{- 1}]}_{J = \frac{5}{2}, T = \frac{1}{2}}$ configuration could be in the 4.248-MeV level. The $γ$ decay of the first $T = \frac{3}{2}$ level is also compared with that of its analog in ${}^{41}{Ca}$ , giving strong indication that the $T = \frac{1}{2}$ levels in ${}^{41}{Sc}$ at 2.668, 3.415, 3.777, and 4.248 MeV are, respectively, the analog of those at 2.605, 3.400, 3.740, and 4.094 MeV in ${}^{41}{Ca}$ .

NUCLEAR REACTIONS ${}^{40}{Ca} (p, γ)$ , $E = 4971 - 4979$ keV; measured $σ (E_{p}; E_{γ}; θ_{γ})$ . First $T = \frac{3}{2}$ level in ${}^{41}{Sc}$ , deduced energy, resonance strength, radiative widths, mixing ratios. Ge(Li) detectors, enriched target.

Elastic scattering of polarized protons from ${}^{56}{Fe}$ in the giant resonance region of ${}^{57}{Co}$

H. R. Weller, J. Szücs, J. A. Kuehner, G. D. Jones, and D. T. Petty

Phys. Rev. C 13, 1055 (1976) - Published 1 March, 1976

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The proton elastic scattering cross sections and analyzing powers for ${}^{56}{Fe}$ have been measured for proton energies from 8.0 to 17.0 MeV. Excitation curves were measured in 100 keV steps at eight angles from $E_{p} = 9.3 to 16.5$ MeV. Angular distributions of cross sections and analyzing powers were measured at 18 angles in ∼ 7.5° steps over the range of ∼ 20° to ∼ 150° in 1.0 MeV steps from 8.0 to 17.0 MeV. A phase shift analysis indicates that the $d_{\frac{5}{2}}$ partial wave has the most significant energy dependence in this energy region. It is shown that this energy dependence can be essentially accounted for by the presence of a single resonance with parameters consistent with those which would be expected for the giant dipole resonance of ${}^{57}{Co}$ .

NUCLEAR REACTIONS ${}^{56}{Fe} (\vec{p}, p)$ ; measured $σ (E, θ)$ , $E = 8 - 17$ MeV; measured $A (E, θ)$ , $E = 8 - 17$ MeV. Phase-shift analyzed. Deduced resonance parameters. Enriched targets.

Measurement of the neutron differential elastic scattering from ${}^{90}{Zr}$ at 2.1 and 5.2 MeV

R. W. Stooksberry, J. H. Anderson, and M. Goldsmith

Phys. Rev. C 13, 1061 (1976) - Published 1 March, 1976

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The differential elastic neutron cross section of ${}^{90}{Zr}$ was measured at 2.1 and 5.2 MeV. The Bettis pulsed Van de Graaff time-of-flight system was used in conjunction with a shielded neutron detector capable of $γ$ ray rejection by pulse shape discrimination. Identical geometry measurements made on a polyethylene sample were used for normalization of the ${}^{90}{Zr}$ data to the $H (n, n)$ cross section. Comparisons were made to the results of optical model calculations.

NUCLEAR REACTIONS ${}^{90}{Zr} (n, n)$ , $E = 2.1, 5.2$ MeV; measured $σ (E, θ)$ ; deduced optical-model parameters; resolution 100 keV; $θ = 17 - 157 °$ .

Isoscalar transition rates via ${}^{40}{Ca}$ , ${}^{208}{Pb} (α, α^{'})$ at 79 MeV

L. L. Rutledge, Jr. and J. C. Hiebert

Phys. Rev. C 13, 1072 (1976) - Published 1 March, 1976

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The inelastic scattering of $α$ particles from ${}^{40}{Ca}$ and ${}^{208}{Pb}$ has been studied at a bombarding energy of 79.1 MeV. Isoscalar transition rates have been extracted for the $2^{+}$ level at 3.90 MeV, the $3^{-}$ levels at 3.73, 6.29, and 6.58 MeV, and the $5^{-}$ level at 4.48 MeV in ${}^{40}{Ca}$ . These have been compared with previous results, and a slight energy dependence is evident. In the case of ${}^{208}{Pb}$ , the isoscalar transition rates have been extracted for the $2^{+}$ level at 4.09 MeV, the $3^{-}$ level at 2.62, and the $5^{-}$ levels at 3.22 and 3.73 MeV. The analysis of the Coulomb and nuclear interference for the $2^{+}$ level at 4.09 MeV indicates that $β_{Coulomb} = 1.2 β_{nuclear}$ . A folding model analysis has been made for the 3.73-MeV ( $3^{-}$ ) and 3.90-MeV ( $2^{+}$ ) levels in ${}^{40}{Ca}$ and the 2.62-MeV ( $3^{-}$ ) and 4.09-MeV ( $2^{+}$ ) levels in ${}^{208}{Pb}$ . This analysis, using an effective $α$ particle, bound nucleon interaction determined from 79-MeV elastic α-scattering data, is compared with a standard deformed optical potential analysis. Agreement between the two analyses is best for the $2^{+}$ state in ${}^{208}{Pb}$ and worst for the $3^{-}$ state in ${}^{40}{Ca}$ . The explicit inclusion of exchange effects tends to reduce the discrepancy between the two reaction models.

NUCLEAR REACTIONS ${}^{40}{Ca}$ , ${}^{208}{Pb} (α, α^{'})$ , $E = 79.1$ MeV; enriched targets; measured $σ (θ)$ ; $θ = 3 ° - 40 °$ ; isoscalar transition rates; DWBA analysis, deformed optical potential and folding model form factors.

Shapes of deformed nuclei as determined by electron scattering: ${}^{152}{Sm}$ , ${}^{154}{Sm}$ , ${}^{166}{Er}$ , ${}^{176}{Yb}$ , ${}^{232}{Th}$ , and ${}^{238}U$

T. Cooper, W. Bertozzi, J. Heisemberg, S. Kowalski, W. Turchinetz, C. Williamson, L. Cardman, S. Fivozinsky, J. Lightbody, Jr., and S. Penner

Phys. Rev. C 13, 1083 (1976) - Published 1 March, 1976

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Electron scattering experiments have been performed on the deformed nuclei ${}^{152}{Sm}$ , ${}^{154}{Sm}$ , ${}^{166}{Er}$ , ${}^{176}{Yb}$ , ${}^{232}{Th}$ , and ${}^{238}U$ at momentum transfers between 0.5 ${fm}^{- 1}$ and 1.3 ${fm}^{- 1}$ . The cross sections for the $0^{+}$ , $2^{+}$ , and $4^{+}$ rotational states of these nuclei have been obtained and, together with other information on the electromagnetic properties of these nuclei, these data lead to information about the deformed shapes. The shapes of ${}^{166}{Er}$ and ${}^{176}{Yb}$ are quite different from the shapes of ${}^{152}{Sm}$ and ${}^{154}{Sm}$ and require a varying skin thickness. The Sm isotopes require a constant skin thickness. Results are presented for $ρ_{0} (r)$ , $ρ_{2} (r)$ , and $ρ_{4} (r)$ .

NUCLEAR REACTIONS ${}^{152}{Sm} (e, e^{'})$ , ${}^{154}{Sm} (e, e^{'})$ , ${}^{166}{Er} (e, e^{'})$ , ${}^{176}{Yb} (e, e^{'})$ , ${}^{232}{Th} (e, e^{'})$ and ${}^{238}U (e, e^{'})$ ; measured cross sections for ground state and first excited states for $0.5 \leq q_{eff} \leq 1.2$ ${fm}^{- 1}$ .

Radiochemical study of alpha particle emission in reactions of ${}^{202}{Hg}$ with 10-86 MeV protons

Martii V. Kantelo and James J. Hogan

Phys. Rev. C 13, 1095 (1976) - Published 1 March, 1976

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Excitation functions have been measured for ${}^{202}{Hg} (p, 2 p x n)$ , $x = 0 - 9$ , reactions induced by protons of energy 10-86 MeV. Reactions having $x > 1$ exhibit two peaks in their excitation functions, the first below the energy calculated for emission of the individual nucleons. This peak is attributed to emission of an $α$ particle. A procedure is proposed for decomposing the excitation functions into two components, one arising from $α$ particle emission, the second from emission of individual nucleons. From these, the total yield of α particles as a function of incident energy is determined, and the excitation energy spectra associated with $α$ emission events is deduced. The $α$ particle yields are attributed to more than one mechanism; speculations are advanced on a substantial pre-equilibrium evaporation component to the total $α$ particle production.

NUCLEAR REACTIONS ${}^{202}{Hg} (p, 2 p x n)$ , $x = 0 - 9$ , $E = 10 - 86$ MeV; measured $σ (E)$ ; deduced $α$ particle yields. Enriched target.

Resonance fluorescence studies of levels in ${}^{63}{Cu}$ and ${}^{65}{Cu}$

C. P. Swann

Phys. Rev. C 13, 1104 (1976) - Published 1 March, 1976

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The properties of levels in ${}^{63}{Cu}$ and ${}^{65}{Cu}$ have been investigated using the resonance fluorescence technique with bremsstrahlung serving as the source of exciting radiation. The energies and scattering cross sections for 24 levels in ${}^{63}{Cu}$ and 30 levels in ${}^{65}{Cu}$ up to about 4.5 MeV were measured. A few levels known to exist in the region of 2 MeV for both nuclei were not observed. For a number of the lower lying levels, spin and parity assignments have been made through angular distribution measurements and limits on $J^{π}$ set by others. Mixing ratios for a few of these are also given. Where $J^{π}$ and the ground state branching ratios are known the partial widths for decays to the ground state are presented. Comparisons are made with the predictions of the latest theoretical calculations.

NUCLEAR REACTIONS ${}^{63, 65}{Cu} (γ, γ)$ , $E = 1.5 - 4.7$ MeV; measured $σ (θ)$ , deduced $J$ , $Γ$ , $δ$ ; natural and enriched targets.

Analysis of compound nucleus contributions from ( $α, p$ ) reactions in Ni and Sn regions

K. C. Chan, L. Shabason, J. E. Alzona, and B. L. Cohen

Phys. Rev. C 13, 1112 (1976) - Published 1 March, 1976

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Compound nucleus contributions to ( $α, p$ ) reactions on nuclei in the Ni and Sn regions are obtained and compared with Hauser-Feshbach calculations. The noncompound nucleus contributions are found to change mainly the spectral magnitude of the cross section without substantially affecting the spectral shape. Both Gilbert-Cameron and back-shifted parameters deduced from level counting data give cross sections in reasonable agreement with experiment.

NUCLEAR REACTIONS Fe, Ni, Zn, Cd, An ( $α, p$ ), $E = 15, 18$ MeV. Measured compound nucleus contributions.

Proton transfer studies of ${}^{98}{Tc}$

D. J. Martin and M. R. Macphail

Phys. Rev. C 13, 1117 (1976) - Published 1 March, 1976

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The doubly odd nucleus ${}^{98}{Tc}$ has been populated by the ${}^{97}{Mo} ({}^{3}{He}, d)$ and ${}^{97}{Mo} (α, t)$ reactions. The $Q$ value for the former reaction has been measured to be 0.686±0.010 MeV. Angular distributions of outgoing deuterons have been measured in order to extract spectroscopic information for the levels observed. The excitation energies and extracted $l$ values for states populated in the above reactions are as follows: 0 keV ( $l = 4$ ), 22(4), 67(4), 82(4), 106(4), 139(1), 202(2+4), 266, 325, 346(1), 387(4), 426(2). Tentative spin assignments have been made.

NUCLEAR REACTIONS ${}^{97}{Mo} ({}^{3}{He}, d) {}^{98}{Tc}$ , ${}^{97}{Mo} (α, t) {}^{98}{Tc}$ , $E = 24$ MeV. Measured $Q$ , $σ_{d} (θ)$ . Deduced levels, $l$ , $π$ , $J$ . Enriched target.

( ${}^{3}{He}, d$ ) stripping to unbound analog states in Cu isotopes

A. Boudard, G. Bruge, A. Chaumeaux, G. Finkel, D. Ashery, and A. I. Yavin

Phys. Rev. C 13, 1123 (1976) - Published 1 March, 1976

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The ( ${}^{3}{He}, d$ ) reaction on Ni isotopes was studied at 30.2 MeV bombarding energy. Twenty-six unbound analog states in Cu isotopes were populated, and the observed differential cross sections are presented. Two different distorted-wave Born-approximation methods for stripping calculations to unbound analog states were used in the analysis. Proton spectroscopic factors were deduced and compared with published neutron spectroscopic factors for the parent states. The agreement is generally good, except for the pair of isotopes ${}^{62}{Ni}$ - ${}^{62}{Cu}$ . The different sensitivity to the transferred angular momentum of the corresponding ( $d, p$ ) and ( ${}^{3}{He}, d$ ) reactions is discussed. The present data are compared with the results of previous studies of the ( ${}^{3}{He}, d$ ) reaction in the $A \sim 90$ mass region. It is concluded again that the ( ${}^{3}{He}, d$ ) reaction to analog states is complementary to the ( $d, p$ ) reaction for the study of levels in the parent states which are populated through large angular momentum transfers.

NUCLEAR REACTIONS ${}^{64, 62, 61, 60}{Ni} ({}^{3}{He}, d)$ , $E = 30.2$ MeV; measured $σ (θ)$ , levels; Enriched targets, DWBA analyses, analog states, deduced $S$ .

Measurement of the 89-keV-state-to-ground-state quadrupole-moment ratio in ${}^{99}{Ru}$

O. C. Kistner and A. H. Lumpkin

Phys. Rev. C 13, 1132 (1976) - Published 1 March, 1976

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The ratio of nuclear quadrupole moments of the first excited state with respect to the ground state in ${}^{99}{Ru}$ has been determined from Mössbauer effect measurements with single crystal absorbers of ruthenocene. The result, $\frac{Q_{1}}{Q_{0}} = 2.93 \pm 0.07$ , when combined with a recent measurement of $Q_{0}$ , gives the value $Q_{1} = 0.23 \times 10^{- 24}$ ${cm}_{2}$ . An improved value for the $\frac{E 2}{M 1}$ amplitude mixing ratio $δ = - 1.56 \pm 0.02$ is determined from magnetic hyperfine spectra obtained with an absorber of ruthenium dissolved in iron. A determination of the angle between the axis of the electric field gradient and each of the three crystal axes of ruthenocene is in good agreement with the crystal structure reported for this compound. The recoil-free fraction was found to vary with respect to orientation of the crystal axes by a factor of greater than 2.

NUCLEAR REACTIONS ${}^{99}{Ru} (γ, γ)$ , $E = 89.4$ keV; measured Mössbauer effect ruthenium iron, single crystal ruthenocene. Deduced $δ$ , $\frac{q_{1}}{q_{0}}$ , EFG axis, recoilless fraction anisotropy.

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Physical Review C

Recent Articles

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Recent Issues

Off-shell $π N$ effects and the reaction ${}^{13}C (π^{+}, π^{0}) {}^{13}N$

Sensitivity of $π^{+}$ and $π^{-}$ inelastic scattering to differences in the neutron and proton amplitudes

Calculation of electroexcitation cross sections in ${}^{12}C$ by a continuum shell model

High-spin yrast levels in ${}^{39}{Ar}$

Prolate-oblate energy difference and shape variation in the $f - p$ shell

${}^{34}S (p, t) {}^{32}S$ reaction

Measurement of the mass of ${}^{8}C$ by the ${}^{14}N$ ( ${}^{3}{He}$ , ${}^{9}{Li}$ ) reaction

Off-shell equivalence in three-body scattering

Coulomb excitation of ${}^{113, 115}{In}$

Gamma decay of the first $T = \frac{3}{2}$ level in ${}^{41}{Sc}$

Elastic scattering of polarized protons from ${}^{56}{Fe}$ in the giant resonance region of ${}^{57}{Co}$

Measurement of the neutron differential elastic scattering from ${}^{90}{Zr}$ at 2.1 and 5.2 MeV

Isoscalar transition rates via ${}^{40}{Ca}$ , ${}^{208}{Pb} (α, α^{'})$ at 79 MeV

Shapes of deformed nuclei as determined by electron scattering: ${}^{152}{Sm}$ , ${}^{154}{Sm}$ , ${}^{166}{Er}$ , ${}^{176}{Yb}$ , ${}^{232}{Th}$ , and ${}^{238}U$

Radiochemical study of alpha particle emission in reactions of ${}^{202}{Hg}$ with 10-86 MeV protons

Resonance fluorescence studies of levels in ${}^{63}{Cu}$ and ${}^{65}{Cu}$

Analysis of compound nucleus contributions from ( $α, p$ ) reactions in Ni and Sn regions

Proton transfer studies of ${}^{98}{Tc}$

( ${}^{3}{He}, d$ ) stripping to unbound analog states in Cu isotopes

Measurement of the 89-keV-state-to-ground-state quadrupole-moment ratio in ${}^{99}{Ru}$

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