Recent Articles

Decay of ${}^{36}K$

Martin J. Fritts

Phys. Rev. C 13, 331 (1976) - Published 1 January, 1976

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${}^{36}K$ was produced via the ${}^{36}{Ar} (p, n) {}^{36}K$ reaction. Measurement of $27 β^{+}$ delayed $γ$ rays associated with the decay of ${}^{36}K$ implied 10 new $β^{+}$ branches to energy levels in ${}^{36}{Ar}$ . Branching ratios and $log ft$ values are calculated for the $β^{+}$ branches. Restrictions on spin and parity assignments for the ${}^{36}{Ar}$ levels are given, as well as branching ratios for $γ$ transitions from these levels. The half-life of ${}^{36}K$ is determined to be 344 ± 3 msec.

RADIOACTIVITY ${}^{36}K$ [from ${}^{36}{Ar} (p, n)$ , $E = 18$ MeV]; measured $E_{γ}$ , $I_{γ}$ , $τ_{\frac{1}{2}}$ ; deduced $β^{+}$ branching ratios, $log f t' s$ , ${}^{36}{Ar}$ levels $l^{π}$ ; enriched targets.

$N = 85$ nuclei. I. Decay of ${}^{145}\Pr$ to levels of ${}^{145}{Nd}$

S. V. Jackson and R. A. Meyer

Phys. Rev. C 13, 339 (1976) - Published 1 January, 1976

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A $γ$ -ray spectroscopy study of the decay of ${}^{145}\Pr$ has led to the identification of 61 $γ$ rays. These and $γ - γ$ coincidence studies have been used to identify 20 levels in ${}^{145}{Nd}$ at ( $J^{π}$ value in parentheses): ground state ( ${\frac{7}{2}}^{-}$ ), $67.1 ({\frac{3}{2}}^{-})$ , $72.50 ({\frac{5}{2}}^{-})$ , $657.67 ({\frac{11}{2}}^{-})$ , $748.28 ({\frac{9}{2}}^{-})$ , $780.45 ({\frac{3}{2}}^{-})$ , $919.9 ({\frac{1}{2}}^{-})$ , $920.72 ({\frac{9}{2}}^{-})$ , $937.05 ({\frac{5}{2}}^{-})$ , $1011.22 ({\frac{11}{2}}^{-})$ , $1051.41 ({\frac{7}{2}}^{-})$ , $1085.2 ({\frac{3}{2}}^{+})$ , $1150.26 ({\frac{9}{2}}^{\pm})$ , $1101.05 ({\frac{5}{2}}^{-})$ , $1161.05 ({\frac{5}{2}}^{-})$ , 1162.32 (-), $1249.7 ({\frac{5}{2}}^{-})$ 1285.6 (-), 1338.6 (-), $1403.92 ({\frac{5}{2}}^{-})$ , and $1527.05 ({\frac{9}{2}}^{-})$ keV. These levels and these properties are discussed in terms of the clustering and the dressed $n$ -quasiparticle model.

RADIOACTIVITY Isolated from fission products and produced from ${}^{146}{Nd} (n, p)$ reaction, enriched targets; measured $E_{γ}$ , $I_{γ}$ , $γ γ$ coin; deduced levels, $J$ , $π$ , $log ft$ Ge (Li).

Electron-capture decay of ${}^{206}{Po}$

L. J. Jardine and A. A. Shihab-Eldin

Phys. Rev. C 13, 348 (1976) - Published 1 January, 1976

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The energies and intensities of 77 $γ$ -ray transitions assigned to the electron-capture decay of ${}^{206}{Po}$ have been measured. Multipolarities of transitions were determined from internal conversion coefficients calculated from our relative $γ$ -ray intensities and the relative conversion electron intensities of Fujika, Kanbe, and Hisatake. $γ$ -ray singles, $γ - γ$ coincidence, and previous conversion electron measurements were used to construct a more complete decay scheme for ${}^{206}{Po}$ . Data obtained from in-beam reaction studies, ${}^{210}{At}$ $α$ decay studies, and the present electron-capture decay scheme were used to identify states in ${}^{206}{Bi}$ of a one proton particle-three neutron hole character. In addition a qualitative discussion of the level structure of ${}^{206}{Bi}$ generated from (zero-order) couplings of $1 h_{\frac{9}{2}}$ and $2 f_{\frac{7}{2}}$ protons with the low-lying states of ${}^{205}{Pb}$ is given, and this is compared with reasonable success to the experimental spectrum. The dominant electron-capture decay rates are explained in terms of an allowed single-particle mechanism.

RADIOACTIVITY ${}^{206}{Po}$ [from ${}^{209}{Bi} (p, 4 n)$ ]; measured $E_{γ}$ , $I_{γ}$ , $γ - γ$ coin; deduced EC branching, $log ft$ ${}^{206}{Bi}$ deduced levels, $J$ , $π$ , $γ$ multipolarity. Ge(Li) detectors, Ge(Li)-Ge(Li) coin.

Integral relation for the asymptotic normalization of the triton

D. R. Lehman and B. F. Gibson

Phys. Rev. C 13, 35 (1976) - Published 1 January, 1976

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An integral relation is derived for the asymptotic normalization constant of the neutron-deuteron tail in the triton wave function. The formula resembles integrals employed in obtaining the triton wave function and it should be particularly useful for calculating the asymptotic normalization of wave functions obtained from local potentials.

[NUCLEAR REACTIONS Three-body problem; asymptotic normalization constant.]

Effects on low-energy phenomena of some recent results obtained in high-energy physics

B. A. Logan and A. Ljubic̆ić

Phys. Rev. C 13, 361 (1976) - Published 1 January, 1976

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Two of the more interesting results obtained recently in high-energy physics have been the observation of neutral current phenomena in weak interactions and the possible existence of a light scalar boson as suggested by discrepancies in the x-ray energies of muonic atoms. Some phenomena in low-energy physics can be effected by the possible consequences of these high-energy results. The effects, and possible experimental arrangements by which they can be investigated, are discussed and analyzed.

RADIOACTIVITY ${}^{16}N (β -)$ , ${}^{14}O (β +)$ , ${}^{18}{Ne} (β +)$ ; possible use of these decays to investigate some fundamental processes.

$L$ -shell internal ionization in the beta decay of ${}^{203}{Hg}$

A. Bond and O. P. Gupta

Phys. Rev. C 13, 367 (1976) - Published 1 January, 1976

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$L$ -shell internal ionization has been observed in the $β$ decay of ${}^{203}{Hg}$ . A spectrum of $Tl L$ x rays was obtained from a 0.12-μC source of ${}^{203}{Hg}$ in coincidence with 279-keV x rays from ${}^{203}{T 1}$ . The coincidence requirement served to eliminate internal-conversion x rays from the specturm. The total $L$ -shell internal ionization probability $P_{L}$ obtained after normalization to the measured singles x-ray intensity, was found to be (12.9 ± 0.5) × $10^{- 4}$ . Estimates for the individual $L$ -subshell internal ionization probabilities resulted in values of (0.0 ± 6.5) × $10^{- 4}$ , (4.8 ± 2.3) × $10^{- 4}$ , and (8.1 ± 3.5) × $10^{- 4}$ for $P_{L_{I}}$ , $P_{L_{II}}$ , and $P_{L_{III}}$ , respectively. The measured value of $P_{L}$ is over 4 standard deviations higher, and that of $P_{L_{III}}$ over 1 standard deviation higher, than theoretical predictions.

RADIOACTIVITY ${}^{203}{Hg}$ ; measured $γ$ -x-ray coinc; deduced internal ionization probabilities $P_{L}$ , $P_{L_{I}}$ , $P_{L_{II}}$ , $P_{L_{III}}$ .

Levels of ${}^{83}{Kr}$ populated in the decay of ${}^{83}{Rb}$ and ${}^{83}{Br}$

S. Väisälä, G. Graeffe, J. Heinonen, A. A. Delucchi, and R. A. Meyer

Phys. Rev. C 13, 372 (1976) - Published 1 January, 1976

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The levels of ${}^{83}{Kr}$ were studied from the decay of both ${}^{83}{Rb}$ and ${}^{83}{Br}$ . Thirteen $γ$ rays were observed in the decay of ${}^{83}{Rb}$ and eight in the decay of ${}^{83}{Br}$ . The ground-state $M 2$ transition from the 562-keV level was observed to have a branching ratio of 1.4 × $10^{- 4}$ . The conversion coefficients were measured for the 9.39 keV and for the 32.2-keV transition. Decay schemes are presented and the possible spins, parities, and structure for the levels of ${}^{83}{Kr}$ are discussed.

RADIOACTIVITY ${}^{83}{Rb}$ , ${}^{83}{Br}$ measured $E_{γ}$ , $I_{γ}$ , $I_{c e}$ , $γ γ$ , deduced ICC. ${}^{83}{Kr}$ deduced levels, $J$ , $π$ , $Λ$ . Mass, chemically separated sources.

Internal ionization accompanying $K$ conversion: One-step theory

Takeshi Mukoyama and Sakae Shimizu

Phys. Rev. C 13, 377 (1976) - Published 1 January, 1976

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A one-step theory of internal ionization accompanying $K$ conversion has been developed. The ionization probability and the energy spectrum of the ejected electrons have been calculated using screened relativistic hydrogenic wave functions. It is shown that the probabilities calculated using the present model are in good agreement with the recent experimental values for the $K$ -shell internal ionization accompanying $K$ conversion. The calculated results predict that the ionization probability is dependent on the nuclear transition energy and on the multipolarity of the transition. The multipolarity dependence of the spectral shape of the ejected electrons has also been studied.

RADIOACTIVITY ${}^{57}{Fe}$ , ${}^{95, 96}{Mo}$ , ${}^{97}{Tc}$ , ${}^{109}{Ag}$ , ${}^{113, 114}{In}$ , ${}^{131}{Xe}$ , ${}^{137}{Ba}$ , ${}^{141}\Pr$ , ${}^{150}{Sm}$ , ${}^{169}{Tm}$ , ${}^{203}{Tl}$ ; calculated internal ionization probability accompanying $K$ conversion, ejected-electron spectrum.

${}^{14}C (d, t) {}^{13}C$ reaction-cross-section and analyzing-power measurements at 14 MeV

H. R. Weller, R. A. Blue, S. E. Darden, and W. A. Yoh

Phys. Rev. C 13, 38 (1976) - Published 1 January, 1976

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Cross-section and vector-analyzing-power measurements have been performed for the ${}^{14}C (d, t) {}^{13}C$ reaction leading to the ground and first three excited states of ${}^{13}{C .}$ A 14 MeV vector-polarized beam was employed for the measurements. Distorted-wave Born-approximation calculations agree reasonably well with the data. The results suggest a 2p-2h admixture of a ${(d_{\frac{5}{2}}^{2}, s p^{- 2})}_{n}$ configuration having an intensity of 4% and a ${(2 s_{\frac{1}{2}}^{2}, s p^{- 2})}_{n}$ configuration with an intensity of 3% in the ground state of ${}^{14}{C .}$

[NUCLEAR REACTIONS Nuclear structure ${}^{14}C (d, t)$ , $E = 14.0$ MeV; measured polarization parameters $A_{y} (E_{t}, θ)$ , cross sections $σ (E_{t}, θ)$ . ${}^{13}C$ deduced $S$ . Enriched targets.]

States in ${}^{126}{Sb}$ populated in the $β$ decay of $10^{5}$ -yr ${}^{126}{Sn}$

H. A. Smith, Jr.,, M. E. Bunker, J. W. Starner, C. J. Orth, and K. E. G. Löbner

Phys. Rev. C 13, 387 (1976) - Published 1 January, 1976

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The low-energy level structure of the odd-odd nucleus ${}^{126}{Sb}$ has been investigated by studying the radioactive decay of $10^{5}$ -yr ${}^{126}{Sn}$ , using Ge(Li) and Si(Li) detectors. Based on conversion-electron and $γ$ -ray singles data, $γ - γ$ and $γ - e^{-}$ prompt and delayed coincidence measurements, and complementary $γ$ -ray energy and intensity balance arguments, a decay scheme for ${}^{126}{Sn}$ has been deduced which accommodates all of the observed $γ$ -ray transitions. The energies (keV), spins, and parities of the levels established in ${}^{126}{Sb}$ are as follows: 0.0 [ $8^{-}$ ], 17.7 [ $5^{+}$ ], 40.4 [ $3^{-}$ ], 83.1 [ $4^{-}$ , ( $3^{-}$ )], 104.7 [ $3^{+}$ ], and 128.0 [ $2^{+}$ ]. The respective half-lives of these six states are: 12.4 day, 19.0 min, ≅11 s, 5.1 ns, 553 ns, and 78.0 ns, the latter four values having been determined in the present investigation. The level assignments are discussed within the framework of the single-particle shell model and in relation to the proposed assignments of low-lying energy levels of neighboring odd-odd antimony isotopes.

RADIOACTIVITY ${}^{126}{Sn}$ [from ${}^{235}U (n, f)$ ]; measured $E_{γ}$ , $I_{γ}$ , $I_{ce}$ , $γ - γ$ , $β - γ$ , and $e - γ$ coin, level $T_{\frac{1}{2}}' s$ ; deduced ICC, $γ$ multipolarities, ${}^{126}{Sb}$ levels, $J$ , $π$ ; calculated $γ$ -hindrance factors. Ge(Li), Si(Li) detectors; mass-separated source.

Calculations in the $50 < N$ , $Z < 82$ region with an interaction derived from the Tabakin potential

N. de Takacsy and S. Das Gupta

Phys. Rev. C 13, 399 (1976) - Published 1 January, 1976

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The region of the Periodic Table with $50 \leq Z$ , $N \leq 82$ is studied using fixed single particle energies and a semirealistic effective interaction derived from the Tabakin potential. All the free parameters are determined by fitting the data on the odd-mass Sn isotopes and $N = 82$ isotones. A conventional quasiparticle formalism is then used to study the structure of a range of spherical nuclei near the $N = 82$ and the $Z = 50$ magic numbers. A deformed Hartree-Fock plus BCS method is used to obtain the structure and electromagnetic properties of deformed nuclei, particularly the neutron-deficient even Ba isotopes. Prolate deformation is found to be favored. In the Ba isotopes, although neutrons have BCS correlation, the protons develop an energy gap between occupied and unoccupied orbitals due to the Hartree-Fock field itself. The proton orbitals are then tested through spectroscopic calculations in La isotopes. Both for spherical and deformed nuclei, agreement between theory and experiment is very satisfactory.

NUCLEAR STRUCTURE Mass region $100 < A < 150$ ; calculated levels, $J$ , $π$ , and other properties. Semirealistic forces; combination of deformed Hartree-Fock and BCS methods.

Perturbative approximations to the effective interaction: Comparisons with exact results for large matrices

S. Pittel, C. M. Vincent, and J. D. Vergados

Phys. Rev. C 13, 412 (1976) - Published 1 January, 1976

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The effective interaction appropriate to a ${(2 s - 1 d)}^{2}$ model space is studied for the $J^{π} = 0^{+}$ states of ${}^{18}O$ . Perturbation theory and various Padé approximants are compared with exact reslts obtained by solving large shell-model problems that realistically include many 3p-1h and 4p-2h states. We analyze two cases that differ only in the choice of the $2 s - 1 d$ single-particle energies. In one, there is a collective 4p-2h intruder state, as well as several intruders at negative values of the coupling parameter. The perturbation theory expansion for the effective interaction is found to diverge in this case. The other case has no intruders and the perturbation expansion seems to converge. In both cases, third-order perturbation theory is found to be more accurate than second order, and gives matrix elements correct to 200 keV. The intruder states do not seem to be responsible for the fact that third-order terms are often larger than second-order terms. The $N + 1, N$ Padé approximants of low orders are less accurate than third-order perturbation theory. However, the operator-valued [1,2] Padé approximant is accurate to 130 keV, for reasons that are not yet understood.

NUCLEAR STRUCTURE Effective interactions; tested perturbation theory and Padé approximants; ${}^{18}O$ $J^{π} = 0^{+}$ large-matrix calculations; included intruder states.

${}^{2}H (p, 2 p) n$ reaction at 23 MeV under the condition of collinearity of the final state particles in the center-of-mass system

J. M. Lambert, P. A. Treado, R. G. Allas, L. A. Beach, R. O. Bondelid, and E. M. Diener

Phys. Rev. C 13, 43 (1976) - Published 1 January, 1976

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The ${}^{2}H (p, 2 p) n$ reaction has been investigated under the special kinematic condition that the neutron is at rest in the center of mass. A comparison of experiment and theory is used to examine the significance of the spectral structure observed for such collinearity conditions.

NUCLEAR REACTIONS ${}^{2}H (p, p p)$ , $E = 23$ MeV; measured $σ (Ω_{1}, Ω_{2}, E_{1})$ collinear conditions. Faddeev calculation, two potentials.

Comment on a dynamically exact classical description of Coulomb excitation of very heavy deformed nuclei

P. Fröbrich, Q. K. K. Liu, and K. Möhring

Phys. Rev. C 13, 430 (1976) - Published 1 January, 1976

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On assumption of an interaction model, a classically exact description is used to investigate the Coulomb excitation of rotational levels of very heavy deformed nuclei. We examine the suddenness of the excitation, the highest classically allowed spin to which the target can be excited, and the deviation from the Rutherford orbit of the projectile. Our calculations show that the perturbative method recently discussed by Rowley and Colombani is on the whole accurate. We do obtain a reduction of up to 4h of their values for classically allowed maximum spin excitable in the target.

NUCLEAR REACTIONS Classical theory of the Coulomb excitation of very heavy nuclei; ${}^{238}U$ , ${}^{232}{Th}$ ( ${}^{84}{Kr}$ , ${}^{84}{Kr γ}$ ) and ${}^{238}U$ ( ${}^{132}{Xe}$ , ${}^{132}{Xe γ}$ ).

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Hindered beta decay of ${}^{95}{Nb}^{m}$ and the decay sequence ${}^{95}{Zr} \to {}^{95}{Nb}^{m, g} \to {}^{95}{Mo}$

Philip K. Hopke and Richard A. Meyer

Phys. Rev. C 13, 434(R) (1976) - Published 1 January, 1976

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A study of the decay of ${}^{95}{Nb}^{m}$ has revealed hindered $β$ decay to known levels in ${}^{95}{Mo}$ at ( $log ft$ value in parentheses): 204.12 (9.36), 786.19 (9.11), 820.61 (10.6), and 1039.25 keV (> 10.2). The $β$ transitions to these levels are found to be 2 to 3 orders of magnitude slower than those observed in the decay of ${}^{95}{Tc}^{m}$ . This difference is discussed in terms of the shell model states available to ${}^{95}{Nb}$ , ${}^{95}{Mo}$ , and ${}^{95}{Tc}$ .

RADIOACTIVITY ${}^{95}{Zr}$ , ${}^{95}{Nb}^{m, g}$ , measured $E_{γ}$ , $I_{γ}$ ; deduced $log ft$ , ${}^{95}{Mo}$ levels; Compton suppression spectrometer.

RAPID COMMUNICATION

Total cross section results for deuterium electrodisintegration

D. M. Skopik, J. J. Murphy, II, and Y. M. Shin

Phys. Rev. C 13, 437(R) (1976) - Published 1 January, 1976

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Theoretical total cross sections for deuterium electrodisintegration are presented as a function of incident electron energy. The cross section has been calculated using virtual photon theory with Partovi's photodisintegration calculation for $E_{x} < 10$ MeV and effective range theory for $E_{x} > 10$ MeV. Experimental electrodisintegration cross sections integrated over limited ranges of energies have been deduced from some previously reported measurements. Satisfactory agreement is found between experiment and theory. These results are of interest not only for checking virtual photon theory but also in estimating neutron fluxes arising from the ${}^{2}H (e, n)$ reaction in Tokamak reactors.

NUCLEAR REACTIONS ${}^{2}H (e, p) n e^{'}$ ; calculated $σ$ .

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Charged particle $Q$ -value measurements in the iron region

P. L. Jolivette, J. D. Goss, J. A. Bieszk, R. D. Hichwa, and C. P. Browne

Phys. Rev. C 13, 439(R) (1976) - Published 1 January, 1976

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$Q$ values are reported for the 11 reactions ${}^{63, 65}{Cu}$ , ${}^{64, 66}{Zn}$ , ${}^{70}{Ge} (p, α)$ ; ${}^{46, 48, 50}{Ti} (d, p)$ ; ${}^{50}{Cr}$ , ${}^{64}{Zn} (d, t)$ , and ${}^{54}{Fe} (d, α)$ . Uncertainties range from ±0.8 to ±2.2 keV. Only the ${}^{50}{Cr} (d, t) {}^{49}{Cr}$ value differs greatly (61 keV) from the values in the 1971 Atomic Mass Evaluation, but in nine cases uncertainties were reduced by factors ranging from 1.5 to 6. The $Ti (d, p)$ measurements are consistent with ( $n, γ$ ) values.

NUCLEAR REACTIONS ${}^{63, 65}{Cu}$ , ${}^{64, 66}{Zn}$ , ${}^{70}{Ge} (p, α)$ ; ${}^{46, 48, 50}{Ti} (d, p)$ ; ${}^{50}{Cr}$ , ${}^{64}{Zn} (d, t)$ ; ${}^{54}{Fe} (d, α)$ ; measured $Q$ values.

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"Resonances" in ${}^{12}C ({}^{12}C, α) {}^{20}{Ne}$ and ${}^{12}C$ ( ${}^{12}C$ , ${}^{8}{Be}$ ) ${}^{16}O$ reactions at about 37 MeV

K. A. Eberhard and K. G. Bernhardt

Phys. Rev. C 13, 440(R) (1976) - Published 1 January, 1976

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Angular distributions and excitation functions for ${}^{12}C ({}^{12}C, α) {}^{20}{Ne}$ and ${}^{12}C$ ( ${}^{12}C$ , ${}^{8}{Be}$ ) ${}^{16}O$ have been measured around $E_{12 C} (c . m .) = 18.5$ MeV, where strongly correlated structure for both reactions has been reported. Both ground-state angular distributions are dominated by a single angular momentum; for ${}^{12}C ({}^{12}C, α) {}^{20}{Ne}_{g . s .}$ the dominant angular momentum is $l = 10$ , while for ${}^{12}C$ ( ${}^{12}C$ , ${}^{8}{Be}_{g . s .}$ ) ${}^{16}O_{g . s .}$ it is $l = 12$ . Hauser-Feshbach calculations reproduce the shapes of the angular distributions; the dominant angular momenta are the grazing partial waves in the outgoing channels.

NUCLEAR REACTIONS ${}^{12}C$ ( ${}^{12}C$ , ${}^{8}{Be}$ ), ( ${}^{12}C, α$ ), $E = 36.5 - 37.5$ MeV; measured $σ (E, θ)$ . Hauser-Feshbach calculations.

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Microscopic effective interaction for 155-MeV protons

M. Buenerd

Phys. Rev. C 13, 444(R) (1976) - Published 1 January, 1976

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${}^{12}C$ ( ${}^{16}O$ , ${}^{12}C$ ) ${}^{16}O^{*}$ inelastic scattering in the region of the $E_{c . m .} = 19.7$ MeV resonance

P. Sperr, W. Henning, and J. R. Erskine

Phys. Rev. C 13, 447(R) (1976) - Published 1 January, 1976

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Excitation functions and angular distributions have been measured with high resolution for inelastic scattering to the $0^{+}$ 6.050-MeV, $3^{-}$ 6.131-MeV, $2^{+}$ 6.919-MeV, and $1^{-}$ 7.119-MeV states in ${}^{16}O$ near the $E_{c . m .} = 19.7$ -MeV resonance in the ${}^{12}C$ + ${}^{16}O$ system. The $0^{+}$ and $2^{+}$ states show no resonant behavior whereas the $3^{-}$ state does. These results do not support an explanation for the $E_{c . m .} = 19.7$ -MeV resonance which involves an $α$ -particle exchange mechanism.

NUCLEAR REACTIONS ${}^{12}C$ ( ${}^{16}O$ , ${}^{12}C$ ), measured $σ (E, θ)$ for 6.050-, 6.131-, 6.919-, 7.119-MeV levels in ${}^{16}O$ , $E = 44.4 - 48.0$ MeV, $θ = 5 - 15 °$ , resolution 45-65 keV.

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Physical Review C

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Recent Issues

Decay of ${}^{36}K$

$N = 85$ nuclei. I. Decay of ${}^{145}\Pr$ to levels of ${}^{145}{Nd}$

Electron-capture decay of ${}^{206}{Po}$

Integral relation for the asymptotic normalization of the triton

Effects on low-energy phenomena of some recent results obtained in high-energy physics

$L$ -shell internal ionization in the beta decay of ${}^{203}{Hg}$

Levels of ${}^{83}{Kr}$ populated in the decay of ${}^{83}{Rb}$ and ${}^{83}{Br}$

Internal ionization accompanying $K$ conversion: One-step theory

${}^{14}C (d, t) {}^{13}C$ reaction-cross-section and analyzing-power measurements at 14 MeV

States in ${}^{126}{Sb}$ populated in the $β$ decay of $10^{5}$ -yr ${}^{126}{Sn}$

Calculations in the $50 < N$ , $Z < 82$ region with an interaction derived from the Tabakin potential

Perturbative approximations to the effective interaction: Comparisons with exact results for large matrices

${}^{2}H (p, 2 p) n$ reaction at 23 MeV under the condition of collinearity of the final state particles in the center-of-mass system

Comment on a dynamically exact classical description of Coulomb excitation of very heavy deformed nuclei

Hindered beta decay of ${}^{95}{Nb}^{m}$ and the decay sequence ${}^{95}{Zr} \to {}^{95}{Nb}^{m, g} \to {}^{95}{Mo}$

Total cross section results for deuterium electrodisintegration

Charged particle $Q$ -value measurements in the iron region

"Resonances" in ${}^{12}C ({}^{12}C, α) {}^{20}{Ne}$ and ${}^{12}C$ ( ${}^{12}C$ , ${}^{8}{Be}$ ) ${}^{16}O$ reactions at about 37 MeV

Microscopic effective interaction for 155-MeV protons

${}^{12}C$ ( ${}^{16}O$ , ${}^{12}C$ ) ${}^{16}O^{*}$ inelastic scattering in the region of the $E_{c . m .} = 19.7$ MeV resonance

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