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相关论文: Improved (e,e') response functions at intermediate…

200 篇论文

For quasilinear parabolic partial differential equations (PDEs) that exhibit finite-time blow up in open loop, i.e., under null boundary conditions, we provide an estimate of the region of attraction under cubic feedback laws applied at the…

偏微分方程分析 · 数学 2025-06-24 Mohamed Camil Belhadjoudja , M Maghenem , E Witrant , M Krstic

We provide general adaptive upper bounds for estimating nonparametric functionals based on second order U-statistics arising from finite dimensional approximation of the infinite dimensional models. We then provide examples of functionals…

统计理论 · 数学 2021-06-07 Lin Liu , Rajarshi Mukherjee , James Robins , Eric Tchetgen Tchetgen

A microscopic thermodynamically consistent approach is applied to compute electron capture (EC) rates and cross sections on nuclei in hot stellar environments. The cross section calculations are based on the Donnelly-Walecka multipole…

核理论 · 物理学 2019-08-12 Alan A. Dzhioev , A. I. Vdovin , Ch. Stoyanov

We investigate the role of relativistic and nonrelativistic optical potentials used in the analysis of ($e,e'p$) data. We find that the relativistic calculations produce smaller ($e,e'p$) cross sections even in the case in which both…

核理论 · 物理学 2009-09-25 J. M. Udias , P. Sarriguren , E. Moya de Guerra , E. Garrido , J. A. Caballero

High energy CW electron beams at new accelerator facilities allow electromagnetic production and precision study of hypernuclear structure, and we report here on the first experiment demonstrating the usefulness of the (e,e'K+) reaction.…

核实验 · 物理学 2008-11-26 HNSS Collaboration , T. Miyoshi

Relativistic corrections have been made in the non-relativistic antisymmetrized molecular dynamics (AMD) simulations to apply to the high energy neutron production in the $^{12}$C+$^{12}$C and $^{16}$O+$^{12}$C collisions at incident…

核理论 · 物理学 2023-10-13 Q. Hu , G. Y. Tian , R. Wada , X. Q. Liu , W. P. Lin , H. Zheng , Y. P. Zhang , Z. Q. Chen , R. Han , M. R. Huang

Electron-induced one-nucleon knock-out observables are computed for moderate to high momentum transfer making use of semi-relativistic expressions for the one-body and two-body meson-exchange current matrix elements. Emphasis is placed on…

核理论 · 物理学 2008-11-26 J. E. Amaro , M. B. Barbaro , J. A. Caballero , F. Kazemi Tabatabaei

We investigate different choices for the quadratic momentum dependence required in nucleon-nucleon potentials to fit phase shifts in high partial-waves. In the Argonne v18 potential L**2 and (L.S)**2 operators are used to represent this…

核理论 · 物理学 2008-11-26 R. B. Wiringa , A. Arriaga , V. R. Pandharipande

The role played by the effective residual interaction in the transverse nuclear response for quasi-free electron scattering is discussed. The analysis is done by comparing different calculations performed in the Random--Phase Approximation…

核理论 · 物理学 2008-11-26 Eduardo Bauer , Antonio M. Lallena

We present a detailed study of a continuum random phase approximation approach to quasielastic electron-nucleus and neutrino-nucleus scattering. The formalism is validated by confronting ($e,e'$) cross-section predictions with electron…

核理论 · 物理学 2015-08-11 V. Pandey , N. Jachowicz , T. Van Cuyck , J. Ryckebusch , M. Martini

The problem of nuclear propagation through the nuclear medium in quasielastic A(e,e'p) reactions is discussed in the kinematic range 1<Q^2<7 (GeV/c)^2. The coefficient of nuclear transparency is calculated for each Q^2 in the framework of…

核理论 · 物理学 2008-11-26 Ye. S. Golubeva , L. A. Kondratyuk , A. Bianconi , S. Boffi , M. Radici

The unpolarized response functions of the quasielastic $^{16}O(e,e^\prime p)^{15}N$ reaction are calculated for three different types of relativistic bound state wave functions. The wave functions are obtained from relativistic Hartree,…

核理论 · 物理学 2009-10-31 S. Ulrych , H. Müther

A method for calculating the electronic levels in the compact superheavy nuclear quasi-molecules, based on solving the two-center Dirac equation using the multipole expansion of two-center potential, is developed. For the internuclear…

原子物理 · 物理学 2018-01-18 A. A. Roenko , K. A. Sveshnikov

In the framework of the non relativistic quark model, an exhaustive study of radiative transitions in mesons is performed. The emphasis is put on several points. Some traditional approximations (long wave length limit, non relativistic…

高能物理 - 唯象学 · 物理学 2016-09-06 R. Bonnaz , B. Silvestre-Brac , C. Gignoux

In a previous communication we reported on a parametrization of the observed enhancement in the transverse electron quasielastic (QE) response function for nucleons bound in carbon as a function of the square of the four momentum transfer…

核实验 · 物理学 2013-11-05 A. Bodek , H. S. Budd , M. E. Christy , T. N. S. Gautam

A nuclear-elastic $^9$Be+$^4$He reaction is investigated. A tangential literature overview of the proximity potential is presented, necessitated by an approximate method for calculating $l\text{-values}$. The model is surveyed intensively,…

核理论 · 物理学 2020-06-16 Austin A. Morris

We present a formalism for rigorous calculations of cross sections for inelastic and reactive collisions of ultracold atoms and molecules confined by laser fields in quasi-2D geometry. Our results show that the elastic-to-inelastic ratios…

原子物理 · 物理学 2009-03-20 Z. Li , R. V. Krems

We have measured the $^3$He(e,e$'$pp)n{} reaction in the Jefferson Lab CLAS with 2.2 and 4.4 GeV electrons. We looked at the energy distribution of events with all three nucleons at high momentum (p > 250 MeV/c). This distribution has peaks…

核实验 · 物理学 2009-11-07 L. B. Weinstein , R. Niyazov

We provide a parametrization of a new phenomenological scaling function obtained from a chi-square fit to a selected set of (e,e') cross section data expanding a band centered around the quasielastic peak. We start from a re-analysis of…

核理论 · 物理学 2017-04-19 J. E. Amaro , E. Ruiz Arriola , I. Ruiz Simo