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相关论文: Electron scattering on halo nuclei

200 篇论文

Experimental studies of meson production through two-photon fusion in inelastic electron-nucleus scattering is now under way. A high-energy photon radiated by the incident electron is fused with a soft photon radiated by the nucleus. The…

核理论 · 物理学 2013-05-29 Göran Fäldt

How does the scattering cross section change when the colliding bound-state fragments are allowed particle-emitting resonances? This question is explored in the framework of a multi-channel algebraic scattering method of determining…

核理论 · 物理学 2009-01-09 P. Fraser , K. Amos , L. Canton , G. Pisent , S. Karataglidis , J. P. Svenne , D. van der Knijff

Halo nuclei are a promising new arena for studies based on effective field theory (EFT). We develop an EFT for shallow p-wave states and discuss the application to elastic n-alpha scattering. In contrast to the s-wave case, both the…

核理论 · 物理学 2009-11-07 C. A. Bertulani , H. -W. Hammer , U. van Kolck

We investigate the Coulomb breakup of $^{11}$Be halo nuclei on a heavy target from intermediate (70 MeV/nucleon) to low energies (5 MeV/nucleon) within the non-perturbative time-dependent approach. The convergence of the computational…

核理论 · 物理学 2021-06-23 D. S. Valiolda , D. M. Janseitov , V. S. Melezhik

We analyze the elastic scattering of particles interacting with nuclei through vector and axial currents with overall couplings of the order of the Standard Model weak interaction, or smaller; the dominant contribution to the elastic cross…

高能物理 - 唯象学 · 物理学 2016-03-21 O. Moreno , T. W. Donnelly

We investigate the breakup of the ^{11}Be halo nuclei on a light target ^{12}C within quantum-quasiclassical approach in a wide range of the beam energy (5-67 MeV/nucleon) including bound states and low-lying resonances in different partial…

核理论 · 物理学 2024-12-03 Dinara Valiolda , Daniyar Janseitov , Vladimir Melezhik

Neutron scattering off neutron halos can provide important information about the internal structure of nuclei close to the neutron drip line. In this work, we use halo effective field theory to study the $s$-wave scattering of a neutron and…

核理论 · 物理学 2023-08-25 Xu Zhang , Hai-Long Fu , Feng-Kun Guo , Hans-Werner Hammer

The effect of core excitation in the elastic scattering and breakup of a two-body halo nucleus on a stable target nucleus is studied. The structure of the weakly-bound projectile is described in the weak-coupling limit, assuming a…

核理论 · 物理学 2014-06-30 R. de Diego , J. M. Arias , J. A. Lay , A. M. Moro

We construct two-electron scattering states and verify their tensor product structure in the infrared-regular massless Nelson model. The proof follows the lines of Haag-Ruelle scattering theory: Scattering state approximants are defined…

数学物理 · 物理学 2015-11-24 Wojciech Dybalski , Alessandro Pizzo

We investigate the breakup of the one-neutron halo nuclei 11Be and 19C within a dynamical model of the continuum excitation of the projectile. The time evolution of the projectile in coordinate space is described by solving the…

核理论 · 物理学 2009-11-07 S. Typel , R. Shyam

Using a combination of high-level ab initio electronic structure methods with efficient on-the-fly semiclassical evaluation of nuclear dynamics, we performed a massive scan of small polyatomic molecules searching for a long lasting…

化学物理 · 物理学 2024-09-26 Alan Scheidegger , Jiří Vaníček , Nikolay V. Golubev

We consider theoretically the energy loss of electrons scattered to high angles when assuming that the primary beam can be limited to a single atom. We discuss the possibility of identifying the isotopes of light elements and of extracting…

仪器与探测器 · 物理学 2015-05-06 G. Argentero , C. Mangler , J. Kotakoski , F. R. Eder , J. C. Meyer

Halo nuclei are exotic nuclei which exhibit a strongly clusterised structure: they can be seen as one or two valence nucleons loosely bound to a core. Being observed at the ridge of the valley of stability, halo nuclei are studied mostly…

核理论 · 物理学 2015-06-12 P. Capel , F. M. Nunes , H. Esbensen , R. C. Johnson

Scattering of photons at an atom with a dynamical nucleus is studied on the subspace of states of the system with a total energy below the threshold for ionization of the atom (Rayleigh scattering). The kinematics of the electron and the…

数学物理 · 物理学 2007-05-23 J. Froehlich , M. Griesemer , B. Schlein

Electromagnetic wave scattering by many parallel infinite cylinders is studied asymptotically as $a\to 0$. Here $a$ is the radius of the cylinders. It is assumed that the points $\hat{x}_m$ are distributed so that…

数学物理 · 物理学 2012-09-03 Alexander G. Ramm

Intermediate energy Coulomb excitation and dissociation is a useful tool for nuclear structure and astrophysics studies. Low-lying strength in nuclei far from stability was discovered by this method. The effective range theory for low-lying…

核理论 · 物理学 2008-11-26 G. Baur , S. Typel

Scattering or tunneling of an electron at a potential barrier is a fundamental quantum effect. Electron-electron interactions often affect the scattering, and understanding of the interaction effect is crucial in detection of various…

介观与纳米尺度物理 · 物理学 2022-11-10 Sungguen Ryu , H. -S. Sim

The theory of weakly bound cluster breakup, like halo nucleus breakup, needs an accurate treatment of the transitions from bound to continuum states induced by the nuclear and Coulomb potentials. When the transition probability is not very…

核理论 · 物理学 2009-11-10 J. Margueron , A. Bonaccorso , D. M. Brink

The question of how the scattering cross section changes when the spectra of the colliding nuclei have low-excitation particle-emitting resonances is explored using a multi-channel algebraic scattering (MCAS) method. As a test case, the…

核理论 · 物理学 2011-05-05 L Canton , P R Fraser , J P Svenne , K Amos , S Karataglidis , D van der Knijff