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We propose a novel statistical approach to the analysis of experimental data obtained in nucleus-nucleus collisions at high energies which borrows from methods developed within the context of Random Matrix Theory. It is applied to the…

核实验 · 物理学 2009-12-31 R. G. Nazmitdinov , E. I. Shahaliev , M. K. Suleymanov , S. Tomsovic

Neutron scattering is a unique and versatile characterization technique for probing the magnetic structure and dynamics of materials. However, instruments at neutron scattering facilities in the world is limited, and instruments at such…

The cross section of the photonuclear reaction in the nucleon-resonance region is calculated to search the resonance-nucleon scattering amplitude in the nucleus. It is assumed that the resonance $R$ is produced and decayed in the elementary…

核理论 · 物理学 2023-05-17 Swapan Das

The solution of the classical Fermi problem of low-energy neutron scattering by nuclei, when the excitations of the nuclei in scattering processes are taken into account, is found by the method of zero-range potentials with inner structure.…

量子物理 · 物理学 2007-05-23 Vladimir I. Kruglov , Boris S. Pavlov

The interaction between nuclei and a strong zeptosecond laser pulse with coherent MeV photons is investigated theoretically. We provide a first semi-quantitative study of the quasiadiabatic regime where the photon absorption rate is…

核理论 · 物理学 2016-02-22 Adriana Pálffy , Oliver Buss , Axel Hoefer , Hans A. Weidenmüller

We discuss the phenomenological implications of the neutron (n) oscillation into the mirror neutron (n'), a hypothetical particle exactly degenerate in mass with the neutron but sterile to normal matter. We show that the present…

高能物理 - 唯象学 · 物理学 2015-06-25 Zurab Berezhiani , Luis Bento

We generalize our virial approach to study the neutral current neutrino response of nuclear matter at low densities. In the long-wavelength limit, the virial expansion makes model-independent predictions for neutrino-nucleon scattering…

核理论 · 物理学 2017-02-08 C. J. Horowitz , O. L. Caballero , Zidu Lin , Evan O'Connor , A. Schwenk

Quantum mechanics predicts that the decay rate of unstable systems could be effectively modified by the process of the measurement of the survival probability. Depending on the intrinsic properties of the unstable system and the…

高能物理 - 唯象学 · 物理学 2020-03-11 Francesco Giacosa , Giuseppe Pagliara

A simple and rapid method is proposed for assessing the reduction in the lifetime of steel walls of the reactor vessel under neutron irradiation. The method is based on modeling the number of radiation defects by the behavior of a general…

仪器与探测器 · 物理学 2024-03-06 V. V. Ryazanov

We study the correlations of time delays in a model of chaotic resonance scattering based on the random matrix approach. Analytical formulae which are valid for arbitrary number of open channels and arbitrary coupling strength between…

chao-dyn · 物理学 2015-06-24 N. Lehmann , D. V. Savin , V. V. Sokolov , H. -J. Sommers

We report on the creation and application of a novel decay network that uses the latest data from experiment and evaluation. We use the network to simulate the late-time phase of the rapid neutron capture (r) process. In this epoch, the…

高能天体物理现象 · 物理学 2022-04-20 T. M. Sprouse , G. Wendell Misch , M. R. Mumpower

Dynamical correlations in asymmetric infinite nuclear matter are investigates in a transport theoretical approach. Self-energies due to short range correlations and their influence on the nucleon spectral functions are described in an…

核理论 · 物理学 2007-05-23 P. Konrad , H. Lenske , U. Mosel

New features of molecular wires can be observed when they are irradiated by laser fields. These effects can be achieved by periodically oscillating fields but also by short laser pulses. The theoretical foundation used for these…

介观与纳米尺度物理 · 物理学 2007-05-23 Sven Welack , Michael Schreiber , Ulrich Kleinekathoefer

A highly intense femtosecond laser pulse incident on a plasma target of supercritical density, gives rise to reflected high-order harmonics of the laser frequency. The radiation model adopted here considers Brunel electrons -those…

等离子体物理 · 物理学 2015-06-19 R. Ondarza-Rovira , T. J. M. Boyd

We study the possibility to influence the lifetime of nuclear isomeric states with the aid of incident fluxes of photons. We assume that a nucleus initially in an isomeric state |i> first absorbs an incident photon of energy E_{ni} to reach…

核实验 · 物理学 2008-11-26 Silviu Olariu , Agata Olariu

An improved formalism of the two-neutrino double-beta decay ($2\nu\beta\beta$-decay) rate is presented, which takes into account the dependence of energy denominators on lepton energies via the Taylor expansion. Till now, only the leading…

核理论 · 物理学 2018-04-13 Fedor Šimkovic , Rastislav Dvornický , Dušan Štefánik , Amand Faessler

The neutron-neutron fusion process, $nn\to de\nu$, at very low neutron energies is studied in the framework of pionless effective field theory that incorporates dibaryon fields. The cross section and electron energy spectrum for this…

核理论 · 物理学 2009-11-11 Shung-ichi Ando , Kuniharu Kubodera

Unexplained variations of the decay rate for weak interaction decays such as $\beta^{\pm}$-decay, electron capture, as well as strong interaction $\alpha$-decay have been reported. Some researcher interpreted these variations as caused by…

核实验 · 物理学 2022-04-27 Shih-Chieh Liu , David Koltick , Haoyu Wang , Jonathan Nistor , Jordan Heim , Thomas Ward

The two-particle wave function of neutrino and recoil nucleus is found as a solution of an initial value problem in the far zone for a time longer than the electron capture decay lifetime of a hydrogenlike ion. The neutrino-recoil…

高能物理 - 唯象学 · 物理学 2015-05-30 I. M. Pavlichenkov

We investigate the systematics of the maximum Electron-decay energy E as a function of the mass number A along isotopic chains with a fixed proton number across Z<47. By making use of the available curated nuclear data, we find that, for…

核理论 · 物理学 2026-05-01 Tolga Yarman , Nimet Zaim , Alexander Kholmetskii , Ozan Yarman , Faruk Aga Yarman