Recent Articles

"Optimal" approximation to projectile-bound-nucleon scattering

S. A. Gurvitz, J. -P. Dedonder, and R. D. Amado

Phys. Rev. C 19, 142 (1979) - Published 1 January, 1979

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An approximation is presented for the projectile-bound nucleon scattering amplitude in terms of a "quasi-free" amplitude that minimizes corrections. This optimal choice permits factorization of the impulse term into a free on-shell amplitude and a form factor. The first nonvanishing correction terms are estimated.

NUCLEAR REACTIONS, bound nucleon, scattering matrix, minimization of corrections, on-shell projectile-nucleon amplitude, factorization, higher order corrections.

Scaling and nonscaling of inclusive pion production in nuclear collisions

R. H. Landau and M. Gyulassy

Phys. Rev. C 19, 149 (1979) - Published 1 January, 1979

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An examination is made of the degree of scaling observed in inclusive pion production from high energy nuclear collisions. While apparent scaling does occur for forward pion production, the scaling limit is not reached in backward $π$ production between 0.7-8 GeV/nucleon. We show that the shapes of the pion inclusive cross sections in both the forward and backward directions can be explained by a simple, hard scattering model employing elementary proton-proton $π$ production rates, or alternatively, in terms of elementary proton-light cluster $π$ production rates. The essential features of this model are an invariant parametrization of the elementary subprocess, the proper handling of kinematical effects, and the use of a long-tailed internal momentum distribution function for nucleons or clusters. We find that much of the "apparent" scaling in the forward direction can be attributed to kinematical effects. The importance of final state interactions on the interpretation of the internal momentum (Fermi) distribution is emphasized, and the connection to quasi-two-body scaling is examined.

NUCLEAR REACTIONS $Cu (p, π) X$ , $p (p, π) X$ , ${}^{2}H (p, π) X$ , $Cu (α, π) X$ , $C (p, π) X$ , $C (d, π) X$ , $C (α, π) X$ , $0.7 < E < 8$ GeV/nucl. Scaling of invariant cross sections; Feynman scaling variable; hard scattering models; large momentum behavior of single-particle momentum distributions; pion production; clustering.

Beta decay of ${}^{27 - 32}{Na}$ and their descendants

C. Détraz, D. Guillemaud, G. Huber, R. Klapisch, M. Langevin, F. Naulin, C. Thibault, L. C. Carraz, and F. Touchard

Phys. Rev. C 19, 164 (1979) - Published 1 January, 1979

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The $γ$ activities from the $β$ decay of Na isotopes up to ${}^{32}{Na}$ , which are formed in high-energy fragmentation and analyzed through mass spectrometry techniques, are observed, as well as those from their Mg or Al descendants. Their intensities are measured, in most cases, in absolute value. The radioactive half-lives of ${}^{29}{Mg}$ , ${}^{30}{Mg}$ , and ${}^{31}{Mg}$ are determined. Delayed-neutron branching ratios $P_{n}$ are measured for ${}^{29}{Na}$ , ${}^{30}{Na}$ , and ${}^{32}{Na}$ . In some cases, partial branching ratios to excited states of the daughter nucleus are also measured. The most prominent $γ$ ray in the $β$ decay of even Na isotopes is assigned to $2^{+}$ → $0^{+}$ transition in the daughter Mg isotopes. The position of the first excited $2^{+}$ level is therefore deduced for ${}^{30}{Mg}$ and ${}^{32}{Mg}$ . For ${}^{32}{Mg}$ , the excitation energy drops markedly. It is taken as an indication of a stronger deformation for that isotope.

RADIOACTIVITY ${}^{27 - 32}{Na}$ , ${}^{29 - 31}{Mg}$ , ${}^{31}{Al}$ ; measured $T_{\frac{1}{2}}$ , $E_{γ}$ , $β_{γ}$ coin; deduced $I_{γ}$ , $I_{β}$ , $P_{n}$ .

$β$ -delayed proton decay of ${}^{29}S$

D. J. Vieira, R. A. Gough, and Joseph Cerny

Phys. Rev. C 19, 177 (1979) - Published 1 January, 1979

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The ${}^{28}{Si}$ ( ${}^{3}{He}$ , $2 n$ ) reaction at 32 MeV has been used to produce ${}^{29}S$ ; delayed protons have been observed following the positron decay of ${}^{29}S$ to proton unbound levels in ${}^{29}P$ . The half-life of ${}^{29}S$ was measured to be 187±6 ms which, combined with previous results, gives a weighted average value of 188.0±4.3 ms. Precise level energies have confirmed several recently observed states in ${}^{29}P$ from 4.0 to 9.5 MeV in excitation energy. From the intensities of these proton groups and assuming isospin purity for the lowest $T = \frac{3}{2}$ level in ${}^{29}P$ , absolute $log ft$ values for each transition were determined. The measured excitation energies and $β$ decay transition rates to levels in ${}^{29}P$ are compared to recent shell-model calculations.

RADIOACTIVITY ${}^{29}S$ ; measured $β$ -delayed protons, measured $T_{\frac{1}{2}}$ ; ${}^{29}P$ deduced levels, IAS proton decay, deduced $log ft$ values compared to shell model.

Energy levels of ${}^{250}{Cf}$ populated in the $β^{-}$ decay of ${}^{250}{Bk}$

C. W. Reich, R. G. Helmer, and R. J. Gehrke

Phys. Rev. C 19, 188 (1979) - Published 1 January, 1979

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The level scheme of doubly even ${}_{98}^{250}{Cf}_{152}$ has been studied from the $β^{-}$ decay of ${}^{250}{Bk}$ . $γ$ -ray energy and intensity measurements were made using Ge(Li) and Si(Li) detectors. Analysis of $γ$ -singles and $γ - γ$ coincidence data has revealed the existence of ∼ 46 $γ$ -ray transitions. Approximately 40 of these, accounting for ≳ 99.97% of the observed $γ$ -ray intensity, have been incorporated into a level scheme for ${}^{250}{Cf}$ consisting of 17 excited states with excitation energies up to 1695 keV. The following states, whose $I^{π}$ values and energies (in keV) are well known from other experiments, are observed: the $0^{+}$ (0), $2^{+}$ (42.73), and $4^{+}$ (141.89) members of the ground-state band; the $2^{-}$ (871.56), $3^{-}$ (905.85), and $4^{-}$ (952.0) members of the $K^{π} = 2^{-}$ octupole band; and the $2^{+}$ (1031.85) and $3^{+}$ (1071.38) members of the $γ$ -vibrational band. In addition, evidence is presented which permits the following $I$ , $K^{π}$ assignments to be made with reasonable confidence (the corresponding level energies—in keV—are given in parentheses): 1, $1^{-}$ (1175.5); 2, $2^{+}$ (1244.50); 2, $0^{+}$ (1296.64); 2, $2^{+}$ (1657.99); and 3, $2^{+}$ (1695.2). The half-life of ${}^{250}{Bk}$ has been remeasured and a value of 192.7±0.3 m obtained. The absolute intensities (in photons/100 ${}^{250}{Bk}$ has been remeasured and a value of 192.7±0.3 m obtained. The absolute intensities (in photons/100 ${}^{250}{Bk}$ $β^{-}$ decays) of the prominent 989- and (1028±1031)-keV $γ$ rays have been measured using a $4 π β - γ$ coincidence system and values of 45.0±0.8 and 40.6±0.7, respectively, have been obtained.

RADIOACTIVITY ${}^{250}{Bk}$ from ${}^{254}{Es}$ $α$ decay; measured $E γ$ , $I γ$ , $γ - γ$ , $4 π β - γ$ , $T_{\frac{1}{2}}$ ; ${}^{250}{Cf}$ deduced levels, $J$ , $π$ , $log ft$ . Ge(Li) and Si(Li) detectors, chemical separation.

States in ${}^{20}O$ below 6 MeV excitation via the ${}^{18}O$ ( $t$ , $p$ ) ${}^{20}O$ reaction

A. A. Pilt, M. A. M. Shahabuddin, and J. A. Kuehner

Phys. Rev. C 19, 20 (1979) - Published 1 January, 1979

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Angular distributions have been measured for the ${}^{18}O$ ( $t$ , $p$ ) ${}^{20}O$ reaction at a bombarding energy of 15.0 MeV. Nine excited states below 6.02 MeV were observed. Comparison with microscopic two-particle distorted-wave Born approximation calculations yielded the following new $J^{π}$ assignments ( $E_{x}$ in MeV, $J^{π}$ ): 5.382, $0^{+}$ ; 5.603, $2^{+}$ ; 6.02, $4^{+}$ . Tentative assignments of ( $1^{-}$ , $2^{+}$ , $3^{-}$ ) and ( $1^{-}$ , $2^{+}$ ) were made to levels at 5.00 and 5.22 MeV, respectively. Spins of $2^{+}$ , $4^{+}$ , $2^{+}$ , and $0^{+}$ to the levels at 1.674, 3.568, 4.065, and 4.446 MeV were confirmed. The experimental spectrum of states below 6 MeV is compared with the results of an ${(sd)}^{4}$ shell-model calculation using the Preedom-Wildenthal interaction matrix elements. Identification of possible core-excited states in ${}^{20}O$ is discussed.

NUCLEAR REACTIONS ${}^{12}C$ ( $t$ , $p$ ), ${}^{16, 18}O$ ( $t$ , $p$ ), $E = 15.0$ MeV; measured $σ (E_{p}, θ)$ . ${}^{20}O$ deduced levels, $J$ . Enriched target, DWBA analysis, shell model calculation.

Calculation of giant monopole resonances in the adiabatic time-dependent Hartree-Fock theory

K. Goeke and B. Castel

Phys. Rev. C 19, 201 (1979) - Published 1 January, 1979

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Giant monopole resonances in doubly magic nuclei are investigated by the adiabatic time-dependent Hartree-Fock method. The collective paths are constructed using constrained Hartree-Fock techniques with various Skyrme interactions. The calculation of the mass parameter is reduced to the solution of a finite set of linear equations which contain the usual cranking expression as an approximation. The resulting masses and energies allow the extraction of various energy moments of the random phase approximation monopole strength distribution. Predictions of the resonance widths are also presented.

NUCLEAR STRUCTURE Giant monopole resonances: Time-dependent Hartree-Fock method, Skyrme's interactions.

Collective properties of the odd-mass Cs nuclei. I. ${}^{127, 129, 131, 133}{Cs}$

U. Garg, T. P. Sjoreen, and D. B. Fossan

Phys. Rev. C 19, 207 (1979) - Published 1 January, 1979

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The high-spin states in the odd-mass ${}^{127 - 133}{Cs}$ have been investigated using the ${}^{120 - 124}{Sn}$ ( ${}^{10}B$ , $3 n$ ) ${}^{127 - 131}{Cs}$ , ${}^{127}I$ ( $α$ , $2 n$ ) ${}^{129}{Cs}$ and ${}^{126 - 130}{Te}$ ( ${}^{6}{Li}$ , $3 n$ ) ${}^{129 - 133}{Cs}$ reactions, to study the collective properties of these Cs isotopes. In-beam measurements of $γ$ -ray excitations, $γ - γ$ coincidences, $γ$ -ray angular distributions, and pulsed-beam— $γ$ timing were performed with Ge(Li) detectors to establish the level schemes. Two collective features have been observed in these odd-mass ${}^{127 - 133}{Cs}$ nuclei: $Δ J = 2$ bands built on the $\frac{11}{2^{-}}$ ( $1 h_{\frac{11}{2}}$ quasi-proton) states and on the $\frac{7}{2^{+}}$ ( $1 g_{\frac{7}{2}}$ quasiproton) states. The systematics of these band structures in ${}^{127 - 133}{Cs}$ , as well as in ${}^{119 - 125}{Cs}$ , are presented and discussed in terms of the particle-plus-rotor and particle-plus-vibrator models.

NUCLEAR REACTIONS ${}^{120 - 124}{Sn}$ ( ${}^{10}B$ , $3 n$ ) ${}^{127 - 131}{Cs}$ , ${}^{127}T$ ( $α$ , $2 n$ ) ${}^{129}{Cs}$ , ${}^{126 - 130}{Te}$ ( ${}^{6}{Li}$ , $3 n$ ) ${}^{129 - 133}{Cs}$ ; measured $γ - γ$ coincidences, $γ (E, θ, t)$ ; deduced level schemes in odd-mass ${}^{127 - 133}{Cs}$ , $γ$ multipolarities, $J^{π}$ . Enriched targets, Ge(Li) detectors. NUCLEAR STRUCTURE Odd-mass ${}^{127 - 133}{Cs}$ , calculated $\frac{11}{2^{-}}$ $Δ J = 2$ rotational bands.

Collective properties of the odd-mass Cs nuclei. II. ${}^{119, 121, 123, 125}{Cs}$

U. Garg, T. P. Sjoreen, and D. B. Fossan

Phys. Rev. C 19, 217 (1979) - Published 1 January, 1979

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Using the techniques of in-beam $γ$ -ray spectroscopy, the high-spin states in the odd-mass ${}^{119 - 125}{Cs}$ have been studied via the ${}^{106}{Cd}$ ( ${}^{16}O$ , $p 2 n$ ) ${}^{119}{Cs}$ , ${}^{110 - 114}{Cd}$ ( ${}^{14}N$ , $3 n$ ) ${}^{121 - 125}{Cs}$ , and ${}^{116, 118}{Sn}$ ( ${}^{10}B$ , $3 n$ ) ${}^{123, 125}{Cs}$ reactions on enriched, self-supporting targets. Two distinct collective features are observed in the resulting level schemes: $Δ J = 2$ bands built on the $\frac{11}{2^{-}}$ ( $1 h_{\frac{11}{2}}$ quasi-proton states, and $Δ J = 1$ bands built on the $\frac{9}{2^{+}}$ ( $1 g_{\frac{9}{2}}$ proton-hole) states. The $\frac{9}{2^{+}}$ bandheads, believed to result from the excitation of the $1 g_{\frac{9}{2}}$ proton across the $Z = 50$ closed shell, are observed at surprisingly low energies, becoming the ground state in ${}^{119}{Cs}$ . The systematics of the $\frac{9}{2^{+}}$ $Δ J = 1$ bands are presented and discussed in terms of the particle-plus-rotor and particle-plus-vibrator models. A deformed structure relationship between the excitation of a $1 g_{\frac{9}{2}}$ proton and the excitation of a pair of $1 g_{\frac{9}{2}}$ protons across the $Z = 50$ closed shell is discussed.

NUCLEAR REACTIONS ${}^{106}{Cd}$ ( ${}^{16}O$ , $p 2 n$ ) ${}^{119}{Cs}$ , ${}^{110 - 114}{Cd}$ ( ${}^{14}N$ , $3 n$ ) ${}^{121 - 125}{Cs}$ , ${}^{116, 118}{Sn}$ ( ${}^{10}B$ , $3 n$ ) ${}^{123, 125}{Cs}$ ; measured $γ - γ$ coincidence, $γ (E, θ)$ ; deduced level schemes in odd-mass ${}^{119 - 125}{Cs}$ , $γ$ multipolarities, $J^{π}$ . Enriched targets, Ge (Li) detectors. NUCLEAR STRUCTURE Odd-mass ${}^{119 - 125}{Cs}$ , calculated ${\frac{9}{2}}^{+}$ $Δ J = 1$ rotational bands.

Embedding of the Brueckner expansion in the Green's function theory

C. Mahaux and R. Sartor

Phys. Rev. C 19, 229 (1979) - Published 1 January, 1979

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We discuss the relationship between the Green's function and the Brueckner expansions for the binding energy of nuclear matter. The origin of spurious-looking graphs which appear in the Green's function expansion is elucidated. Numerical values are given in the case of the Hamman-Ho-Kim nucleon-nucleon interaction. We point out the existence of a striking analogy between the Green's function and the correlated basis functions approaches.

NUCLEAR STRUCTURE Formal and numerical comparison between the Brueckner and Green's function theories of nuclear matter.

$N + d$ clustering of three-nucleon systems: $D$ -state effects in ( $d$ , $t$ ) and $d$ , ${}^{3}{He}$ ) reactions

F. D. Santos, A. M. Eiró, and A. Barroso

Phys. Rev. C 19, 238 (1979) - Published 1 January, 1979

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The $S$ - and $D$ -state radial components $u_{0}$ and $u_{2}$ of the relative motion between the clusters $d + n$ in ${}^{3}H$ necessary in a full finite range distorted-wave Born-approximation analysis of ( $d$ , $t$ ) reactions, are calculated using realistic triton and deuteron wave functions derived from the Reid soft-core potential. The parameter $D_{2}$ which provides a measure of the asymptotic $D$ state to $S$ state ratio is found to be almost entirely determined by the triton $D$ state, the deuteron $D$ -state contribution being about 10%. Using the Strayer and Sauer triton wave function, the value $D_{2} = - 0.17$ ${fm}^{2}$ is obtained after correcting the asymptotic behavior of the $d - t$ overlap. This result suggests that the Reid soft-core potential overestimates $D_{2}$ by about 20% compared with values extracted from a local energy approximation analysis of ( $d$ , $t$ ) tensor analyzing power data. The difference between $D_{2}$ for ( $d$ , $t$ ) and ( $d$ , ${}^{3}{He}$ ) is discussed.

NUCLEAR STRUCTURE ${}^{3}H$ ; calculated $S$ and $D$ states of the overlap integral with deuteron; deduced $D_{0}$ and $D_{2}$ for ( $d$ , $t$ ) and ( $d$ , ${}^{3}{He}$ ) reactions.

Crude shell-model location of two-particle high-spin states corresponding to a maximum spin coupling configuration

Tsan Ung Chan, M. Agard, J. F. Bruandet, and C. Morand

Phys. Rev. C 19, 244 (1979) - Published 1 January, 1979

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A compilation of a large number of experimental results supporting a crude shell-model description of two-nucleon high-spin states is presented. A simple addition rule is deduced: In even nuclei the energy of a state involving two nucleons coupled to their maximum spin value is simply the sum of the experimental energies of each nucleon in its single-particle state in the neighboring nucleus plus the pairing energy when the two nucleons are identical. This simple model gives predictions in a parameter-free way, all the involved data being extracted from experiments.

NUCLEAR STRUCTURE Very simple shell-model. Location of two-nucleon high-spin states, coupling to maximum spin of the two nucleons.

Meson-meson interaction and nuclear saturation

Tsunejiro Negishi and Toshitake Kohmura

Phys. Rev. C 19, 253 (1979) - Published 1 January, 1979

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The repulsive interaction between mesions suppresses the meson field around nucleons and brings about nuclear saturation. For a nuclear system composed of nucleons and neutral scalar mesons, we have calculated the energy per nucleon, disregarding the repulsive core in the nuclear force and taking into account the quantum fluctuations. The compressibility of nuclear matter is evaluated.

NUCLEAR STRUCTURE meson-meson interaction and nuclear saturation; calculated nuclear compressibility.

Four-particle scattering with three-particle interactions

Sadhan K. Adhikari

Phys. Rev. C 19, 26 (1979) - Published 1 January, 1979

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The four-particle scattering formalism proposed independently by Alessandrini, by Mitra et al., by Rosenberg, and by Takahashi and Mishima is extended to include a possible three-particle interaction. The kernel of the new equations we get contain both two- and three-body connected parts and gets four-body connected after one iteration. On the other hand, the kernel of the original equations in the absence of three-particle interactions does not have a two-body connected part. We also write scattering equations for the transition operators connecting the two-body fragmentation channels. They are generalizations of the Sloan equations in the presence of three-particle interactions.

NUCLEAR REACTIONS Scattering theory, four-particle transition operators in the presence of three-particle interactions.

Anomaly of high spin states

L. Satpathy, A. Ansari, and M. Satpathy

Phys. Rev. C 19, 263 (1979) - Published 1 January, 1979

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We examine here the large angular momentum behavior of the energies projected from a single intrinsic state and find that it has indeed the tendency to backband. This complements the work of Villars who had earlier studied the small angular momentum behavior. Microscopic calculation have been done for ${}^{158}{Er}$ and ${}^{166}{Yb}$ to test this conclusiion. This study shows the existence of another cause of backbending in addition to the usual ones which is likely to be significant in soft nuclei.

NUCLEAR STRUCTURE Large angular momentum behavior of projected energies, Hartree-BCS calculation, mechanism of backbending.

Polarization of 16-MeV neutrons due to elastic scattering

R. B. Galloway and A. Waheed

Phys. Rev. C 19, 268 (1979) - Published 1 January, 1979

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Measurements of the polarization of 16.1-MeV neutrons due to elastic scattering by Cu and Pb are presented over the angular range 20°-90°. The polarization values for scattering angles around 20° differ markedly from the values calculated with the optical model using global fit parameters. This is in contrast to the situation reported recently at 10.4 MeV.

NUCLEAR REACTIONS Cu, Pb( $n$ , $n$ ), $E_{n} = 16.1$ MeV; measured $P (θ)$ ; $θ = 20 ° - 90 °$ ; optical model analysis.

RAPID COMMUNICATION

Isospin mixing in the compound nucleus from Ericson fluctuations of mirror reactions

J. J. Simpson and S. J. Wilson

Phys. Rev. C 19, 272(R) (1979) - Published 1 January, 1979

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RAPID COMMUNICATION

Orthogonality in medium energy nuclear reactions

J. M. Eisenberg, J. V. Noble, and H. J. Weber

Phys. Rev. C 19, 276(R) (1979) - Published 1 January, 1979

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The kinematic range over which orthogonality appreciably changes single-nucleon ejection amplitudes is investigated. No simple prescription is found which can be applied to plane wave approximations to achieve the required modifications.

NUCLEAR REACTIONS Orthogonality in nucleon emission amplitudes.

RAPID COMMUNICATION

Test of a scaling law for quasi-elastic electron scattering

Peter D. Zimmerman, C. F. Williamson, and Yoshiyuki Kawazoe

Phys. Rev. C 19, 279(R) (1979) - Published 1 January, 1979

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A simple scaling law for quasi-elastic scattering is tested by deep-inelastic scattering on ${}^{40}{Ca}$ . Data taken at widely different scattering angles and bombarding energies can be combined to yield a simple function of one variable. Systematic comparison of low- and high-energy data may permit isolation of the contribution from the single-particle knockout process.

NUCLEAR REACTIONS ${}^{40}{Ca} (e, e^{'}) X$ . Measured deep-inelastic scattering. Deduced momentum distribution and scaling law.

RAPID COMMUNICATION

Fast beta transition in ${}^{183}{Pt}$ and the systematics of Nilsson states in the $N = 105$ isotones

A. Visvanathan, E. F. Zganjar, J. L. Wood, R. W. Fink, L. L. Riedinger, and F. E. Turner

Phys. Rev. C 19, 282(R) (1979) - Published 1 January, 1979

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A $β$ -decaying state in ${}^{183}{Pt}$ with a half-life of 43±5 seconds is observed for the first time and is identified as $ν$ $\frac{7}{2^{-}}$ 514 ↓ based on a $log ft$ of 4.3 deduced from the mass tables of Wapstra and Bos. It decays to the $π$ $\frac{9}{2^{-}}$ 514 ↑ state in ${}^{183}{Ir}$ at 645 keV, which deexcites to the $\frac{5}{2^{-}}$ , $\frac{7}{2^{-}}$ , and $\frac{9}{2^{-}}$ members of the $\frac{1}{2^{-}}$ 541 ↓ band at 0, 329, and 16 keV, respectively. This is strong evidence for the applicability of the Nilsson model to the light Pt isotopes.

RADIOACTIVITY ${}^{183}{Pt}$ [from ${}^{180}W$ ( ${}^{14}N$ , $p 10 n$ ), ${}^{180}W$ ( ${}^{14}N$ , $α 7 n$ ), $E = 187$ MeV; ${}^{183}{Hg}$ and ${}^{183}{Au}$ decays]; mass-separated sources. Measured $E_{γ}$ , $I_{γ} (t)$ . ${}^{183}{Pt}$ [from ${}^{181}{Ta}$ ( ${}^{16}O$ , $xn$ ), $E = 160 - 200$ MeV]; measured $T_{\frac{1}{2}}$ , $E_{γ}$ , $I_{γ}$ , $γ - γ$ and $γ - X$ coincidence. Deduced $log ft$ , ${}^{183}{Ir}$ levels, $J π$ , Nilsson. Ge(Li), He gas-jet recoil transport, mass separation.

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Recent Issues

"Optimal" approximation to projectile-bound-nucleon scattering

Scaling and nonscaling of inclusive pion production in nuclear collisions

Beta decay of ${}^{27 - 32}{Na}$ and their descendants

$β$ -delayed proton decay of ${}^{29}S$

Energy levels of ${}^{250}{Cf}$ populated in the $β^{-}$ decay of ${}^{250}{Bk}$

States in ${}^{20}O$ below 6 MeV excitation via the ${}^{18}O$ ( $t$ , $p$ ) ${}^{20}O$ reaction

Calculation of giant monopole resonances in the adiabatic time-dependent Hartree-Fock theory

Collective properties of the odd-mass Cs nuclei. I. ${}^{127, 129, 131, 133}{Cs}$

Collective properties of the odd-mass Cs nuclei. II. ${}^{119, 121, 123, 125}{Cs}$

Embedding of the Brueckner expansion in the Green's function theory

$N + d$ clustering of three-nucleon systems: $D$ -state effects in ( $d$ , $t$ ) and $d$ , ${}^{3}{He}$ ) reactions

Crude shell-model location of two-particle high-spin states corresponding to a maximum spin coupling configuration

Meson-meson interaction and nuclear saturation

Four-particle scattering with three-particle interactions

Anomaly of high spin states

Polarization of 16-MeV neutrons due to elastic scattering

Isospin mixing in the compound nucleus from Ericson fluctuations of mirror reactions

Orthogonality in medium energy nuclear reactions

Test of a scaling law for quasi-elastic electron scattering

Fast beta transition in ${}^{183}{Pt}$ and the systematics of Nilsson states in the $N = 105$ isotones

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