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相关论文: A relativistic framework to determine the nuclear …

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Relativistic and unfactorized calculations for the nuclear transparency extracted from exclusive A(e,e'p) reactions for 0.3 \leq Q^2 \leq 10 (GeV/c)^2 are presented for the target nuclei C, Si, Fe and Pb. For Q^2 \geq 0.6 (GeV/c)^2, the…

核理论 · 物理学 2009-11-10 P. Lava , M. C. Martinez , J. Ryckebusch , J. A. Caballero , J. M. Udias

Nuclear transparency in (e,e'p) reactions is evaluated in a fully relativistic distorted wave impulse approximation model. The relativistic mean field theory is used for the bound state and the Pauli reduction for the scattering state,…

核理论 · 物理学 2014-11-18 Andrea Meucci

We present a relativistic and cross-section factorized framework for computing nuclear transparencies extracted from A(\gamma,\pi N) reactions at intermediate energies. The proposed quantummechanical model adopts a relativistic extension to…

核理论 · 物理学 2008-11-26 W. Cosyn , M. C. Martinez , J. Ryckebusch , B. Van Overmeire

We present quasi-elastic neutrino-nucleus cross sections in the energy range from 150 MeV up to 5 GeV for the target nuclei 12C and 56Fe. A relativistic description of the nuclear dynamics and the neutrino-nucleus coupling is adopted. For…

核理论 · 物理学 2009-11-11 M. C. Martinez , P. Lava , N. Jachowicz , J. Ryckebusch , K. Vantournhout , J. M. Udias

A relativistic and quantum mechanical framework to compute nuclear transparencies for pion photo- and electroproduction reactions is presented. Final-state interactions for the ejected pions and nucleons are implemented in a relativistic…

核理论 · 物理学 2008-11-26 W. Cosyn , M. C. Martínez , J. Ryckebusch

In light of the recent Jefferson Laboratory (JLab) data for the nuclear $^{12}\text{C}(e,e'p)$ transparencies, calculations, obtained in a relativistic multiple scattering Glauber approximation, are discussed. The shell-separated $^{12}$C…

核理论 · 物理学 2022-06-13 Wim Cosyn , Jan Ryckebusch

The energy dependence of $90^o$ $cm$ fixed angle scattering of $\pi p \to \pi' p'$ and $\gamma p\to \pi^+ n$ at large momentum transfer are found to be well described in terms of interfering short and long distance amplitudes with dynamical…

高能物理 - 唯象学 · 物理学 2009-10-31 Pankaj Jain , Bijoy Kundu , John P. Ralston

Nuclear transparency in the (e,e'p) reaction for 135 < Tp < 800 MeV is investigated using the distorted wave approximation. Calculations using density-dependent effective interactions are compared with phenomenological optical potentials.…

核理论 · 物理学 2008-11-26 James J. Kelly

[Background] The recent Jefferson Lab data for the nuclear transparency in $\rho^ {0}$ electroproduction have the potential to settle the scale for the onset of color transparency (CT) in vector meson production. [Purpose] To compare the…

核理论 · 物理学 2013-06-17 Wim Cosyn , Jan Ryckebusch

The authors present a relativistic and cross-section factorized framework for computing quasielastic A(p,pN) observables at intermediate and high energies. The model is based on the eikonal approximation and can accomodate both optical…

核理论 · 物理学 2007-05-23 B. Van Overmeire , W. Cosyn , P. Lava , J. Ryckebusch

Nuclear transparency is calculated for high-energy, semi-inclusive $(e,e'p)$ reactions, by accounting for all orders of Glauber multiple-scattering and by using realistic finite-range $p N$ interaction and (dynamically and statistically)…

核理论 · 物理学 2009-10-28 Ryoichi Seki , T. D. Shoppa , Akihisa Kohama , Koichi Yazaki

The transparency of the hadrons produced in the $\gamma (n,p) \pi^-$ reaction in nuclei is calculated using the Glauber model modified by including the Fermi motion of the nucleon in the nucleus. Since the calculated results underestimates…

核理论 · 物理学 2023-03-24 Swapan Das

Quantum filtering of the ejectile wave packet from hard $ep$ scattering on bound nucleons puts stringent constraints on the onset of color transparency in $(e,e'p)$ reactions in nuclei at moderate energies. Based on multiple-scattering…

核理论 · 物理学 2008-11-26 N. N. Nikolaev , A. Szczurek , J. Speth , J. Wambach , B. G. Zakhorov , V. R. Zoller

Optical potential parameters in nuclear model calculations are determined by fitting elastic scattering angular distribution data. Due to the dominance of Coulomb part, elastic scattering is performed at much higher energies. A different…

核理论 · 物理学 2022-09-07 Dipali Basak , Chinmay Basu

We summarize the results of two experimental programs at the Alternating Gradient Synchrotron of BNL to measure the nuclear transparency of nuclei measured in the A(p,2p) quasielastic scattering process near 90 Deg .in the pp center of…

We investigate nuclear transparency induced by pion electroproduction on nuclei, $A(e,e'\pi^+)$, with our interest in the role of the two-step process in the Glauber multiple scattering theory. Based on the framework in which the quantum…

核理论 · 物理学 2025-06-10 Tae Keun Choi , Kook-Jin Kong , Byung-Geel Yu

We have measured the nuclear transparency of the fundamental process $\gamma$ n $\to \pi^-$ p in $^4$He. These measurements were performed at Jefferson Lab in the photon energy range of 1.6 to 4.5 GeV and at $\theta^{\pi}_{cm}= 70^\circ$…

核实验 · 物理学 2016-09-08 D. Dutta

In the model calculations of heavy element nucleosynthesis processes the nuclear reaction rates are taken from statistical model calculations which utilize various nuclear input parameters. It is found that in the case of reactions…

核实验 · 物理学 2014-12-01 Gy. Gyürky , Zs. Fülöp , Z. Halász , G. G. Kiss , T. Szücs

We study nuclear structure effects on the transparency in high transverse momentum $(p,2p)$ and $(e,e'p)$ reactions. We show that in the DWIA-eikonal approximation, even when correlations are included, one can get a factorized expression…

核理论 · 物理学 2008-11-26 Sherman Frankel , William Frati , Niels R. Walet

Elastic scattering of alpha-particle and some tightly-bound light nuclei has shown the pattern of rainbow scattering at medium energies, which is due to the refraction of the incident wave by a strongly attractive nucleus-nucleus potential.…

核理论 · 物理学 2008-11-26 Dao T. Khoa , W. von Oertzen , H. G. Bohlen , S. Ohkubo
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