Physical Review C

Background: Obtaining reaction rates for nuclear astrophysics applications is often limited by the availability of radioactive beams. Indirect techniques to establish reaction rates often rely heavily on the properties of excited states inferred from mirror symmetry arguments. Mirror energy differen...

An analysis of six different sets of experimental data indicates that infinite, neutron-proton symmetric, neutral nuclear matter has a critical temperature of T_c=17.9±0.4 MeV, a critical density of ρ_c=0.06±0.01 nucleons/fm³, and a critical pressure of p_c=0.31±0.07 MeV/fm³. These values have been obt...

Background: The triple-α reaction is the key to our understanding about the nucleosynthesis and the observed abundance of ¹²C in stars. The theory of this process is well established at high temperatures but rather ambiguous in the low temperature regime where measurements are impossible.

Purpose: De...

Production cross sections for neutron-rich nuclei from the fragmentation of a ⁸²Se beam at 139 MeV/u were measured. The longitudinal momentum distributions of 126 neutron-rich isotopes of elements 11≤Z≤32 were scanned using an experimental approach of varying the target thickness. Production cross s...

We study the equation of state and composition of hypernuclear matter within a relativistic density functional theory with density-dependent couplings. The parameter space of hyperon–scalar-meson couplings is explored by allowing for mixing and breaking of SU(6) symmetry, while keeping the nucleonic...

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...

Excited states of ⁷⁶Ge have been populated in above-barrier Coulomb excitation and inelastic scattering of a 530-MeV ⁷⁶Ge beam on a ²³⁸U target and studied using in-beam γ-ray spectroscopy with the Gammasphere array. The γ band was extended considerably and one new band was identified. Comparisons o...

We find the height of the third fission barrier B_III and energy of the third minimum E_III in ²³²Th using the macroscopic-microscopic model, which is very well tested in this region of nuclei. For the first time it is done on an eight-dimensional deformation hypercube. The dipole distortion is includ...

Background: The calculation of the hyperon binding energy in hypernuclei is crucial to understanding the interaction between hyperons and nucleons.

Purpose: We assess the relative importance of two- and three-body hyperon-nucleon force by studying the effect of the hyperon-nucleon-nucleon interaction...

We introduce a unified approach to nuclear bound and continuum states based on the coupling of the no-core shell model (NCSM), a bound-state technique, with the no-core shell model/resonating group method (NCSM/RGM), a nuclear scattering technique. This new ab initio method, no-core shell model with...

Quantum Monte Carlo calculations of electromagnetic moments and transitions are reported for A≤9 nuclei. The realistic Argonne v₁₈ two-nucleon and Illinois-7 three-nucleon potentials are used to generate the nuclear wave functions. Contributions of two-body meson-exchange current (MEC) operators are...

We have performed shell-model calculations for the two one-valence-neutron isotones ¹³⁵Te and ¹³⁷Xe and the two one-valence-proton isotopes ^135,137Sb. The main aim of our study has been to investigate the evolution of single-particle states with increasing nucleon number. To this end, we have focuse...

Problems of production and study of new neutron-enriched heavy nuclei are discussed. Low-energy multinucleon transfer reactions are shown to be quite appropriate for this purpose. Reactions with actinide beams and targets are of special interest for synthesis of new neutron-enriched transfermium nuc...

Our earlier Faddeev three-body study in the K⁻-deuteron scattering length, A_K⁻d, is revisited here in light of the recent developments on two fronts: (i) the improved chiral unitary approach to the theoretical description of the coupled K̅ N related channels at low energies, and (ii) the new ...

We present the first ab initio coupled-cluster calculations of medium-mass nuclei with explicit chiral three-nucleon (3N) interactions. Using a spherical formulation of coupled cluster with singles and doubles excitations including explicit 3N contributions, we study ground states of ^16,24O, ^40,48Ca...

The ground state of neutron-rich unbound ¹³Li was observed for the first time in a one-proton removal reaction from ¹⁴Be at a beam energy of 53.6 MeV/u. The ¹³Li ground state was reconstructed from ¹¹Li and two neutrons giving a resonance energy of 120₋₈₀⁺⁶⁰ keV. All events involving single- and dou...

We present a microscopic calculation of the complete quasiparticle interaction, including central as well as noncentral components, in neutron matter from high-precision two- and three-body forces derived within the framework of chiral effective-field theory. The contributions from two-nucleon force...

The prompt neutron and γ emission from primary fission fragments are calculated for thermal neutron induced fission of ²³⁵U and ²³⁹Pu and for spontaneous fission of ²⁵²Cf using a Monte Carlo Hauser-Feshbach approach for the evaporation of the excited fission fragments. Remaining free model parameter...

This paper details the solar neutrino analysis of the 385.17-day phase-III data set acquired by the Sudbury Neutrino Observatory (SNO). An array of ³He proportional counters was installed in the heavy-water target to measure precisely the rate of neutrino-deuteron neutral-current interactions. This ...

The single-neutron properties of N = 51 nuclei have been studied with the (d,p) and (α,³He) reactions, at beam energies of 15 and 50 MeV respectively, on ⁸⁸Sr, ⁹⁰Zr, and ⁹²Mo targets. The light reaction products were momentum analyzed using a conventional magnetic spectrometer. Additionally, the ²H(^...

We present a model of electron-positron pair production in pion-nucleon collisions in the exclusive reaction πN→Ne⁺e⁻. The model is based on an effective field theory approach, incorporating 16 baryon resonances below 2 GeV. Parameters of the model are fitted to pion photoproduction data. We present...

We calculate the electromagnetic form factors of the nucleon to third chiral order in manifestly Lorentz-invariant effective field theory. The ρ and ω mesons as well as the Δ(1232) resonance are included as explicit dynamical degrees of freedom. To obtain a self-consistent theory with respect to con...

Background: The density of the nucleus has been important in explaining the nuclear dependence of the quark distributions, also known as the EMC effect, as well as the presence of high-momentum nucleons arising from short-range correlations (SRCs). Recent measurements of both of these effects on lig...

Neutron star crusts are studied using a classical molecular dynamics model developed for heavy-ion reactions. After the model is shown to produce a plethora of the so-called pasta shapes, a series of techniques borrowed from nuclear physics, condensed matter physics, and topology is used to craft a ...

Background: Superallowed β-decay rates provide stringent constraints on physics beyond the standard model of particle physics. To extract crucial information about the electroweak force, small isospin-breaking corrections to the Fermi matrix element of superallowed transitions must be applied.

Purpos...

We study a system of spinless fermions in two dimensions with a short-range interaction fine-tuned to a p-wave resonance. We show that three such fermions form an infinite tower of bound states of orbital angular momentum ℓ=±1 and their binding energies obey a universal doubly exponential scaling E₃^...

We introduce a generalization of the conventional renormalization schemes used in dimensional regularization, which illuminates the renormalization scheme and scale ambiguities of perturbative QCD predictions, exposes the general pattern of nonconformal {β_i} terms, and reveals a special degeneracy o...

We optimize the nucleon-nucleon interaction from chiral effective field theory at next-to-next-to-leading order (NNLO). The resulting new chiral force NNLO_opt yields χ²≈1 per degree of freedom for laboratory energies below approximately 125 MeV. In the A=3, 4 nucleon systems, the contributions of th...

The neutron-rich isotopes of cadmium up to the N=82 shell closure have been investigated by high-resolution laser spectroscopy. Deep-uv excitation at 214.5 nm and radioactive-beam bunching provided the required experimental sensitivity. Long-lived isomers are observed in ¹²⁷Cd and ¹²⁹Cd for the firs...

We study the electric conductivity of hot QCD matter at various temperatures T within the off-shell parton-hadron-string dynamics transport approach for interacting partonic, hadronic or mixed systems in a finite box with periodic boundary conditions. The response of the strongly interacting system ...

For the first time a single trapped antiproton (p̅ ) is used to measure the p̅ magnetic moment μ_p̅ . The moment μ_p̅ =μ_p̅ S/(ℏ/2) is given in terms of its spin S and the nuclear magneton (μ_N) by μ_p̅ /μ_N=-2.792 845±0.000 012. The 4.4 parts per million (ppm) u...

The Hoyle state plays a crucial role in the helium burning of stars that have reached the red giant stage. The close proximity of this state to the triple-alpha threshold is needed for the production of carbon, oxygen, and other elements necessary for life. We investigate whether this life-essential...

Various theories beyond the standard model predict new particles with masses in the sub-eV range with very weak couplings to ordinary matter. A parity-odd interaction between polarized nucleons and unpolarized matter proportional to g_Vg_As⃗·p⃗ is one such possibility, where s⃗ and p⃗ are the spin and...

Core-collapse theory brings together many facets of high-energy and nuclear astrophysics and the numerical arts to present theorists with one of the most important, yet frustrating, astronomical questions: “What is the mechanism of core-collapse supernova explosions?” A review of all the physics and the 50-year history involved would soon bury the reader in minutiae that could easily obscure the essential elements of the phenomenon, as we understand it today. Moreover, much remains to be discovered and explained, and a complicated review of an unresolved subject in flux could grow stale fast. Therefore, this paper describes various important facts and perspectives that may have escaped the attention of those interested in this puzzle. Furthermore, an attempt to describe the modern theory’s physical underpinnings and a brief summary of the current state of play are given. In the process, a few myths that have crept into modern discourse are identified. However, there is much more to do and humility in the face of this age-old challenge is clearly the most prudent stance as its eventual resolution is sought.

Type Ia supernovae, sparked off by exploding white dwarfs of mass close to the Chandrasekhar limit, play the key role in understanding the expansion rate of the Universe. However, recent observations of several peculiar type Ia supernovae argue for its progenitor mass to be significantly super-Chand...

Previous explanations for the resonance behavior of ¹²C+¹²C fusion at low energies were based on a nonresonant compound-nucleus background and an additional contribution from a series of resonances. This separation into “resonance” and “background” contributions of the cross section is artificial. W...

The g factor of lithiumlike silicon ²⁸Si¹¹⁺ has been measured in a triple-Penning trap with a relative uncertainty of 1.1×10^-9 to be g_exp⁡=2.000 889 889 9(21). The theoretical prediction for this value was calculated to be g_th=2.000 889 909(51) improving the accuracy to 2.5×10^-8 due to the first rig...

In anticipation of results from current and future double-β decay studies, we report a measurement resulting in a ⁸²Se double-β decay Q value of 2997.9(3) keV, an order of magnitude more precise than the currently accepted value. We also present preliminary results of a calculation of the ⁸²Se neutr...

In this Letter we report the first results on π^±, K^±, p, and p̅ production at midrapidity (|y|<0.5) in central Pb-Pb collisions at √s_NN=2.76  TeV, measured by the ALICE experiment at the LHC. The p_T distributions and yields are compared to previous results at √s_NN=200  GeV and expectation...

The excited state of the ¹²C nucleus known as the “Hoyle state” constitutes one of the most interesting, difficult, and timely challenges in nuclear physics, as it plays a key role in the production of carbon via fusion of three alpha particles in red giant stars. In this Letter, we present ab initi...

The suppression of the individual Υ(nS) states in PbPb collisions with respect to their yields in pp data has been measured. The PbPb and pp data sets used in the analysis correspond to integrated luminosities of 150  μb^-1 and 230  nb^-1, respectively, collected in 2011 by the CMS experiment at the L...

We introduce a novel photon production mechanism stemming from the conformal anomaly of QCD×QED and the existence of strong (electro)magnetic fields in heavy ion collisions. Using the hydrodynamical description of the bulk modes of QCD plasma, we show that this mechanism leads to the photon producti...

Classical novae are important contributors to the abundances of key isotopes, such as the radioactive ¹⁸F, whose observation by satellite missions could provide constraints on nucleosynthesis models in novae. The ¹⁷O(p,γ)¹⁸F reaction plays a critical role in the synthesis of both oxygen and fluorine...

The neutron-rich lead isotopes, up to ²¹⁶Pb, have been studied for the first time, exploiting the fragmentation of a primary uranium beam at the FRS-RISING setup at GSI. The observed isomeric states exhibit electromagnetic transition strengths which deviate from state-of-the-art shell-model calculat...

Two years after the discovery of element 117, we undertook a second campaign using the ²⁴⁹Bk+⁴⁸Ca reaction for further investigations of the production and decay properties of the isotopes of element 117 on a larger number of events. The experiments were started in the end of April 2012 and are stil...

The passage of muons through matter is dominated by the Coulomb interaction with electrons and nuclei. The interaction with the electrons leads to continuous energy loss and stopping of the muons. The interaction with nuclei leads to angle “diffusion.” Two muon-imaging methods that use flux attenuat...

Neutral-pion π⁰ spectra were measured at midrapidity (|y|<0.35) in Au+Au collisions at √s_NN=39 and 62.4 GeV and compared with earlier measurements at 200 GeV in a transverse-momentum range of 1<p_T<10  GeV/c. The high-p_T tail is well described by a power law in all cases, and the powers decr...

The transverse energy (E_T) in Pb-Pb collisions at 2.76 TeV nucleon-nucleon center-of-mass energy (√s_NN) has been measured over a broad range of pseudorapidity (η) and collision centrality by using the CMS detector at the LHC. The transverse energy density per unit pseudorapidity (dE_T/dη) increases f...

The E1-E2 interference sign between the E_c.m.=2.68-MeV E2 resonance and an underlying E1 strength has been measured for the first time. An E1-E2 asymmetry parameter of a=0.07±0.05 was extracted from the thick-target γ-ray yields of the narrow resonance at angles of 45° and 135°. The positive sign of...

Since its original postulation by Wolfgang Pauli in 1930, the neutrino has played a prominent role in our understanding of nuclear and particle physics. In the intervening 80 years, scientists have detected and measured neutrinos from a variety of sources, both man made and natural. Underlying all of these observations, and any inferences we may have made from them, is an understanding of how neutrinos interact with matter. Knowledge of neutrino interaction cross sections is an important and necessary ingredient in any neutrino measurement. With the advent of new precision experiments, the demands on our understanding of neutrino interactions is becoming even greater. The purpose of this article is to survey our current knowledge of neutrino cross sections across all known energy scales: from the very lowest energies to the highest that we hope to observe. The article covers a wide range of neutrino interactions including coherent scattering, neutrino capture, inverse beta decay, low-energy nuclear interactions, quasielastic scattering, resonant pion production, kaon production, deep inelastic scattering, and ultrahigh energy interactions. Strong emphasis is placed on experimental data whenever such measurements are available.

A new framework for computing the similarity renormalization group (SRG) evolution of three-nucleon forces (3NF) in momentum representation is presented. The use of antisymmetric three-particle hyperspherical momentum states ensures unitary evolutions within certain basis truncations, much like anti...

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...

Empirically determined values of the nuclear volume and surface symmetry energy coefficients from nuclear masses are expressed in terms of density distributions of nucleons in heavy nuclei in the local density approximation. This is then used to extract the value of the symmetry energy slope paramet...

Proton pair correlations relevant for the neutrinoless double-β decay of ⁷⁶Ge have been probed via the ^74,76Ge(³He,n) reactions at 16 MeV. No evidence for pairing vibrations in either nucleus is observed at sensitivity limits of ∼6% and ∼19% of the ground-state strength in ⁷⁶Se and ⁷⁸Se, respectivel...

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...

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 ...

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...

The discrete variable representation (DVR) basis is nearly optimal for numerically representing wave functions in nuclear physics: Suitable problems enjoy exponential convergence, yet the Hamiltonian remains sparse. We show that one can often use smaller basis sets than with the traditional harmonic...

Recent data show that both the 2⁺ and 4⁺ levels in the even neutron-rich Cr and Fe isotopes decrease in excitation energy toward N=40. This observation, along with Coulomb excitation and lifetime data, strongly indicates an increase in collectivity near N=40 in contradiction with expectations based ...

Excited states of ⁷⁶Ge have been populated in above-barrier Coulomb excitation and inelastic scattering of a 530-MeV ⁷⁶Ge beam on a ²³⁸U target and studied using in-beam γ-ray spectroscopy with the Gammasphere array. The γ band was extended considerably and one new band was identified. Comparisons o...

Background: The calculation of the hyperon binding energy in hypernuclei is crucial to understanding the interaction between hyperons and nucleons.

Purpose: We assess the relative importance of two- and three-body hyperon-nucleon force by studying the effect of the hyperon-nucleon-nucleon interaction...

It is shown that the standard shell-model representation is inadequate to explain cluster decay processes due to a deficient asymptotic behavior of the corresponding single-particle wave functions. A new representation is proposed which is derived from a mean field consisting of the standard Woods-S...

The relativistic local density approximation (LDA) for the Coulomb exchange functional in nuclear systems is presented. This approximation is composed of the well-known Slater approximation in the nonrelativistic scheme and the corrections due to the relativistic effects. Its validity in finite nucl...

We address the question of why so far most of the simulation approaches to find the energy of vanishing flow (EVF) in light systems have failed to reproduce the experimental data. By investigating systematically the dependence of the EVF on the initial setup of the nuclei in these approaches we find...

Equilibration of N/Z in binary breakup of an excited and transiently deformed projectile-like fragment (PLF^*), produced in peripheral collisions of ⁶⁴Zn+²⁷Al, ⁶⁴Zn, ²⁰⁹Bi at E/A=45 MeV, is examined. The composition of emitted light fragments (3≤Z≤6) changes with the decay angle of the PLF^*. The most...

In this paper we present results from measurements of prompt γ rays from the thermal neutron induced fission of ²³⁵U. Photons were measured in coincidence with fission fragments with cerium-doped LaCl₃ and LaBr₃ as well as CeBr₃ scintillation detectors, which offer an intriguing combination of excel...

Based on the stochastic Langevin equation coupled with a statistical decay model, we study the effects of deformation on the accuracy of extracting saddle-to-scission friction (β) by analyzing prescission neutron yields measured in heavy compound nuclei ²⁴⁸Fm, ²⁵²Fm, ²⁵⁶Fm, and ²⁵¹Es. It is shown th...

The azimuthal anisotropy due to path-length-dependent jet energy loss is studied in a simple jet absorption model that includes event-by-event fluctuating Glauber geometry. Significant anisotropy coefficients v_n are observed for n=1, 2, and 3, but they are very small for n>3. These coefficients a...

Starting from the Boltzmann equation with the relaxation time approximation for the collision term and using a Chapman-Enskog-like expansion for the distribution function close to equilibrium, we derive hydrodynamic evolution equations for the dissipative quantities directly from their definition. A...

We investigate the effects of secondary (knockout) protons, which constitute about 20% of the observed protons at the solenoidal tracker detector (STAR) at the BNL Relativistic Heavy Ion Collider, on the higher order cumulants of proton and baryon numbers measured by event-by-event analyses in relat...

The system formed in ultrarelativistic heavy-ion collisions behaves as a nearly perfect fluid. This collective behavior is probed experimentally by two-particle azimuthal correlations, which are typically averaged over the properties of one particle in each pair. In this Rapid Communication, we argu...

The N^*(1535)S₁₁ coupling strength to the K⁺Λ channel, g_{N^*(1535)ΛK⁺}, is extracted from the latest and largest K⁺Λ photoproduction database by using an isobar model. It is found that the coupling is small. In terms of the coupling ratio the best result is R≡|g_{N^*(1535)ΛK⁺}/g_N^*(1535)ηp|=0.460±0.172, much...

We compute cross sections for incoherent and coherent diffractive J/Ψ production in ultraperipheral nucleus-nucleus and proton-nucleus collisions using two different dipole models fitted to HERA data. We obtain a reasonably good description of the available ALICE data for coherent J/Ψ production and...

A new measurement of the neutron β-decay asymmetry A₀ has been carried out by the UCNA Collaboration using polarized ultracold neutrons (UCNs) from the solid deuterium UCN source at the Los Alamos Neutron Science Center. Improvements in the experiment have led to reductions in both statistical and s...

The onset of the superfluid phase in high-density neutron matter is studied within the BCS framework with two- and three-body forces. When including the strong correlation effects in the gap equation, the pairing gap turns out to be nonvanishing in a range of densities about 0.1–0.4 fm⁻³ with a peak...

A new framework for computing the similarity renormalization group (SRG) evolution of three-nucleon forces (3NF) in momentum representation is presented. The use of antisymmetric three-particle hyperspherical momentum states ensures unitary evolutions within certain basis truncations, much like anti...

The Born theory for bremsstrahlung from high-energy electrons colliding with extended (finite-mass) nuclei is reexamined. Higher-order effects are included into the Born approximation by making use of the weak-potential Sommerfeld-Maue prescription in an additional contribution to the transition amp...

Background: The recent Jefferson Laboratory data for the nuclear transparency in ρ⁰ electroproduction have the potential to settle the scale for the onset of color transparency (CT) in vector meson production.

Purpose: To compare the data to calculations in a relativistic and quantum-mechanical Glaub...

Background: Experiments designed to study rare processes, such as neutrinoless double-β decay (0νββ), are crucial tests for physics beyond the standard model. These experiments rely on reducing the intrinsic radioactive background to unprecedented levels, while adequately shielding the detectors fro...

Angular distributions of ¹⁶O + ¹⁶O elastic scattering at energies that range from 124 to 1120 MeV have been analyzed in the framework of the double folding (DF) optical model. Based upon the α-cluster structure of the ¹⁶O nucleus, two different versions of the real DF optical potential have been gen...

Subthreshold kaon (K⁰ and K⁺) production in neutron-rich nuclear reactions to probe the kaon-nucleon interaction in nuclear medium and to extract the isospin-dependent part of the nuclear equation of state at high-baryon densities is investigated within an isospin- and momentum-dependent transport m...

The extreme back-angle evaporation spectra of alpha, lithium, beryllium, boron and carbon from different compound nuclei near A ≈ 100 (E_X = 76–210 MeV) have been compared with the predictions of standard statistical model codes such as cascade and gemini. It was found that the shapes of the alpha sp...

We address the question of why so far most of the simulation approaches to find the energy of vanishing flow (EVF) in light systems have failed to reproduce the experimental data. By investigating systematically the dependence of the EVF on the initial setup of the nuclei in these approaches we find...

Equilibration of N/Z in binary breakup of an excited and transiently deformed projectile-like fragment (PLF^*), produced in peripheral collisions of ⁶⁴Zn+²⁷Al, ⁶⁴Zn, ²⁰⁹Bi at E/A=45 MeV, is examined. The composition of emitted light fragments (3≤Z≤6) changes with the decay angle of the PLF^*. The most...

Configuration-constrained potential-energy-surface calculations with reflection asymmetry show enhanced octupole correlations in the K^π=6⁻ states with configuration ν5/2⁺[633]⊗ν7/2⁻[743] in N=142,144 isotones, where a 33.5-μs isomer has been observed in ²³⁴U. High-K isomeric states in other nuclei a...

The action of the long-range residual force on the expectation value of observables in the nuclear ground states is evaluated by finding optimal values for the coefficients of the canonical transformation which connects the phonon vacuum state with the (quasi)particle ground state. After estimating ...

Background: The major challenge for nuclear theory is to describe and predict global properties and collective modes of atomic nuclei. Of particular interest is the response of the nucleus to a time-dependent external field that impacts the low-energy multipole and β-decay strength, as well as indiv...

We examine Cr isotopes at the drip line, where surface effects related to the existence of a weakly bound s_1/2 state are known to be important and tightly connected with the pairing phenomenon (antihalo effect). For these weakly bound isotopes, we evaluate the ground state to ground state two-neutro...

Recent results for the β decay of ¹⁷B, together with a simple model, allow an estimate of the (sd)⁴ component in ¹⁶C(g.s.). The result is about 0.02, a small number.

With the recent inclusion of core orbitals to the radial-overlap component of the isospin-symmetry-breaking (ISB) corrections for superallowed Fermi β decay, experimental data are needed to test the validity of the theoretical model. This work reports measurements of single-neutron pickup reaction s...

A new version of the Barcelona-Catania-Paris energy functional is applied to a study of nuclear masses and other properties. The functional is largely based on calculated ab initio nuclear and neutron matter equations of state. Compared to typical Skyrme functionals having 10–12 parameters apart fro...

Very neutron deficient francium isotopes have been produced in fusion evaporation reactions using ⁶⁰Ni ions on ¹⁴¹Pr targets. The gas-filled recoil separator RITU was employed to collect the fusion products and to separate them from the scattered beam. The activities were implanted into a position s...

The population of the high-spin isomers in ¹³⁹Nd and ¹⁴⁰Nd was investigated using the ⁹⁶Zr(⁴⁸Ca,xn) reaction and the JUROGAM + RITU + GREAT setup employing the recoil decay tagging technique. Three transitions feeding the 23/2⁺ isomer in ¹³⁹Nd and two transitions feeding the 20⁺ isomer in ¹⁴⁰Nd were...

We study the shear and bulk viscosities of partonic and hadronic matter as functions of temperature T within the parton-hadron-string dynamics (PHSD) off-shell transport approach. Dynamical hadronic and partonic systems in equilibrium are studied by the PHSD simulations in a finite box with periodic...

We present a study of the average transverse momentum (p_t) fluctuations and p_t correlations for charged particles produced in Cu+Cu collisions at midrapidity for √s_NN= 62.4 and 200 GeV. These results are compared with those published for Au+Au collisions at the same energies, to explore the system s...

The pp→ppK⁺K⁻ reaction was measured below the ϕ threshold at a beam energy of 2.568 GeV using the COSY-ANKE magnetic spectrometer. By assuming that the four-body phase space is distorted only by the product of two-body final-state interactions, fits to a variety of one-dimensional distributions perm...

The nucleon form factors in free space are usually thought to be modified when a nucleon is bound in a nucleus or immersed in a nuclear medium. We investigate effects of the density-dependent axial and weak-vector form factors on the electroneutrino (ν_e) and anti-electroneutrino (ν̅ _e) reacti...

We investigate the MiniBooNE recent data on the antineutrino-nucleus interaction, using the same theoretical description with the same parameters as in our previous work on neutrino interactions. The double differential quasielastic cross section, which is free from the energy reconstruction problem...

The density-dependent lepton fractions approach that is used to describe the properties of matter with neutrino trapping is systematically studied. It is found that two sets of the ratio of trapped neutrinos to leptons parameters—i.e., one for a relativistic mean field parameter set with stiff equat...