The nucleus ²⁰³Fr has been studied through γ-ray and electron spectroscopy, using the recoil-decay tagging technique. A 13/2⁺ state, with a half-life of 0.37(5) μs, has been observed in ²⁰³Fr. Both the α-decay branch and the internal de-excitation of the 1/2⁺ isomer in ²⁰³Fr have been studied. Furth...

[Phys. Rev. C 87, 054320] Published Fri May 17, 2013

An approximate Lane-consistent dispersive coupled-channels optical potential is derived that describes nucleon-induced reactions on even iron isotopes. Realistic saturated couplings for ^54,56,58Fe nuclei are built using nuclear wave functions of the soft-rotator model with the Hamiltonian parameters...

[Phys. Rev. C 87, 054611] Published Fri May 17, 2013

Direct photons have been measured in √s_NN=200 GeV d+Au collisions at midrapidity. A wide p_T range is covered by measurements of nearly real virtual photons (1<p_T<6 GeV/c) and real photons (5<p_T<16 GeV/c). The invariant yield of the direct photons in d+Au collisions over the scaled p+p cr...

[Phys. Rev. C 87, 054907] Published Fri May 17, 2013

We calculate properties of neutron drops in external potentials using both quantum Monte Carlo and no-core full configuration techniques. The properties of the external wells are varied to examine different density profiles. We compare neutron drop results given by a selection of nuclear Hamiltonian...

[Phys. Rev. C 87, 054318] Published Thu May 16, 2013

The effect of electron screening on the α decay rate of typical nuclei is considered. To this end, the adiabatical approach is exploited, which consecutively takes into account the adiabaticity of the motion of the α particle through the shells. The effect is found to be of the order of 0.1% to 0.01...

[Phys. Rev. C 87, 054319] Published Thu May 16, 2013

[Phys. Rev. C 87, 059902] Published Thu May 16, 2013

Self-consistent proton-neutron quasiparticle random phase approximation based on the spherical nonlinear point-coupling relativistic Hartree-Bogoliubov theory is established and used to investigate the β⁺/electron-capture (EC)-decay half-lives of neutron-deficient Ar, Ca, Ti, Fe, Ni, Zn, Cd, and Sn ...

[Phys. Rev. C 87, 051303] Published Wed May 15, 2013

Spin-1 states in ⁶⁰Ni were excited with the (γ⃗,γ^′) reaction, exploiting the High Intensity γ⃗-ray Source at Triangle University Nuclear Laboratory. This facility is capable of providing fully linearly polarized, quasimonochromatic, Compton-backscattered photons in the entrance channel of the reacti...

[Phys. Rev. C 87, 051304] Published Wed May 15, 2013

The line shapes of giant dipole resonance (GDR) in the decay of the compound nucleus ⁸⁸Mo, which is formed after the fusion-evaporation reaction ⁴⁸Ti + ⁴⁰Ca at various excitation energies E^* from 58 to 308 MeV, are generated by averaging the GDR strength functions predicted within the phonon damping...

[Phys. Rev. C 87, 054313] Published Wed May 15, 2013

The effects of nuclear superfluidity on antimagnetic rotation bands in ¹⁰⁵Cd and ¹⁰⁶Cd are investigated by the cranked shell model with the pairing correlations and blocking effects treated by a particle-number-conserving method. The experimental moments of inertia and the reduced B(E2) transition v...

[Phys. Rev. C 87, 054314] Published Wed May 15, 2013

We have computed the matter radius of ¹⁷N(g.s.), using both the 1n and 2n prescriptions. The two results differ by only 0.02 fm.

[Phys. Rev. C 87, 054315] Published Wed May 15, 2013

Odd-odd ¹³⁶Cs nuclei have been produced in the ¹⁸O+²⁰⁸Pb and ¹²C+²³⁸U fusion-fission reactions and their γ rays studied with the Euroball array. The high-spin level scheme was built up to ∼4.7 MeV excitation energy and spin I∼16ℏ from the triple γ-ray coincidence data. The configurations of the thre...

[Phys. Rev. C 87, 054316] Published Wed May 15, 2013

Elastic gluon-gluon-quark (gluon-gluon-antiquark) scattering is studied in perturbative QCD with 123 Feynman diagrams at the tree level. Individually squared amplitudes and interference terms of the Feynman diagrams are derived. With the elastic gluon-gluon-quark scattering and the elastic gluon-glu...

[Phys. Rev. C 87, 054904] Published Wed May 15, 2013

We study the production of light nuclei, hypernuclei, and their antiparticles in relativistic energy heavy ion collisions from sequential decay of massive resonance states within a Hagedorn resonance gas model. The production yield of these clusters and of the multistrange hypernuclear objects are p...

[Phys. Rev. C 87, 054905] Published Wed May 15, 2013

Starting from the light-cone plasma (LCP) distribution of gluons produced in proton-proton collisions, we derive the invariant charged-particle yield dN/dy d²p_⊥ in heavy-ion collisions. Multiple scattering of partons in the other nucleus leads to p_⊥ broadening, which depends on the centrality of the...

[Phys. Rev. C 87, 054906] Published Wed May 15, 2013

In this Brief Report we report systematic deviations of the Garvey-Kelson mass relations for different parity combinations of neutrons and protons. A simple argument of such deviations is presented in terms of the pairing interaction.

[Phys. Rev. C 87, 057304] Published Wed May 15, 2013

The controlled transfer of nuclear state population using two x-ray laser pulses is investigated theoretically. The laser pulses drive two nuclear transitions in a nuclear three-level system facilitating coherent population transfer via the quantum optics technique of stimulated Raman adiabatic pass...

[Phys. Rev. C 87, 054609] Published Tue May 14, 2013

The decay of the Z=115 superheavy nuclear system, formed in the ²⁴³Am+⁴⁸Ca reaction, is studied by using the dynamical cluster-decay model. The calculated excitation functions of 2n-, 3n-, and 4n-evaporation channels, for the excitation energy range E_CN^*=31–47 MeV, are compared with the recent exper...

[Phys. Rev. C 87, 054610] Published Tue May 14, 2013

Using an interaction extracted from the local hidden-gauge Lagrangians, which brings together vector and pseudoscalar mesons, and the coupled channels ρN (s wave), πN (d wave), πΔ (s wave), and πΔ (d wave), we look in the region of √s=1400–1850 MeV and find two resonances dynamically generated by th...

[Phys. Rev. C 87, 055204] Published Tue May 14, 2013

We present simulations of neutron-rich matter at subnuclear densities, like supernova matter, with the time-dependent Hartree-Fock approximation at temperatures of several MeV. The initial state consists of α particles randomly distributed in space that have a Maxwell-Boltzmann distribution in momen...

[Phys. Rev. C 87, 055805] Published Tue May 14, 2013

A complete set of analyzing powers for the d⃗d→³Hp reaction at the kinetic beam energy of 200 MeV has been measured in the full angular range in the c.m. frame. The observed signs of the tensor analyzing powers A_yy, A_xx, and A_xz at forward and backward directions have clearly demonstrated the sensit...

[Phys. Rev. C 87, 051001] Published Mon May 13, 2013

We study weakly bound deformed nuclei based on the coordinate-space Skyrme Hartree-Fock-Bogoliubov (HFB) approach, in which a large box is employed for treating the continuum and large spatial extensions. When the limit of the core-halo deformation decoupling is approached, calculations found an exo...

[Phys. Rev. C 87, 051302] Published Mon May 13, 2013

The self-consistent relativistic random-phase approximation (RPA) in the radial coordinate representation is established by using the finite-amplitude method (FAM). Taking the isoscalar giant monopole resonance in spherical nuclei as example, the feasibility of the FAM for the covariant density func...

[Phys. Rev. C 87, 054310] Published Mon May 13, 2013

Detailed α-decay studies of ¹⁷⁹Tl^g and its daughter products ¹⁷⁵Au^g and ¹⁷¹Ir^g were carried out in two complementary experiments at the mass separator ISOLDE (CERN) and velocity filter SHIP (GSI). First unambiguous determination of the α-decay properties of ¹⁷⁵Au^g was performed as follows: E_α = 6433...

[Phys. Rev. C 87, 054311] Published Mon May 13, 2013

The similarity renormalization group (SRG) is used to soften interactions for ab initio nuclear structure calculations by decoupling low- and high-energy Hamiltonian matrix elements. The substantial contribution of both initial and SRG-induced three-nucleon forces requires their consistent evolution...

[Phys. Rev. C 87, 054312] Published Mon May 13, 2013

Isotopically resolved fragments with Z≲20 have been studied with a high-resolution telescope in a test run for the FAZIA Collaboration. The fragments were produced by the collision of a ⁸⁴Kr beam at 35 MeV/nucleon with a neutron-rich (¹²⁴Sn) and a neutron-poor (¹¹²Sn) target. The fragments, detected...

[Phys. Rev. C 87, 054607] Published Mon May 13, 2013

The J/Ψ(1S) and Ψ^′(2S) production near threshold in antiproton-nucleus reactions is calculated on the basis of the Glauber model. The model takes into account the antiproton (pre-)absorption, proton Fermi motion, and charmonium formation length. We confirm an earlier prediction that the charmonium p...

[Phys. Rev. C 87, 054608] Published Mon May 13, 2013

We recently introduced a fluid-dynamical model for simulating relativistic nuclear collisions in the presence of a first-order phase transition and made explorative studies of head-on lead-lead collisions. We give here a more detailed account of this novel theoretical tool and carry out more exhaust...

[Phys. Rev. C 87, 054903] Published Mon May 13, 2013

We present calculations of the hydrodynamics of the inner crust of neutron stars, where a superfluid neutron liquid coexists with a lattice of neutron-rich nuclei. The long-wavelength collective oscillations are combinations of phonons in the lattice and phonons in the superfluid neutrons. Velocitie...

[Phys. Rev. C 87, 055803] Published Mon May 13, 2013

Recently, the triple-α (3α) process, by which three ⁴He nuclei are fused into a ¹²C nucleus in stars, was studied by using different methods to solve the quantum mechanical three-body problem. The results for the thermonuclear reaction rate for the process differ by several orders at low stellar tem...

[Phys. Rev. C 87, 055804] Published Mon May 13, 2013