Maximum Entropy Method and Oscillations in the Diffraction Cone
نویسندگان
چکیده
The maximum entropy method has been applied to investigate the oscillating structure in the pp− and pp−elastic scattering differential cross-section at high energy and small momentum transfer. Oscillations satisfying quite realistic reliability criteria have been found. e-mail address: [email protected] e-mail address: [email protected] e-mail address: [email protected]
منابع مشابه
Modeling of the Maximum Entropy Problem as an Optimal Control Problem and its Application to Pdf Estimation of Electricity Price
In this paper, the continuous optimal control theory is used to model and solve the maximum entropy problem for a continuous random variable. The maximum entropy principle provides a method to obtain least-biased probability density function (Pdf) estimation. In this paper, to find a closed form solution for the maximum entropy problem with any number of moment constraints, the entropy is consi...
متن کاملImagi,ng of Diffraction Data by the Maximum Entropy Method -anew Approach to Crystallography-
The recent works of the Maximum Entropy Method (MEM) in the field of accurate crystal structure analysis were reviewed, The role of MEM analysis in these works are described by the concept of Imaging of Diffraction Data (IDD). Assuming that the phase problem is solved by direct method or some other way, it is possible to construct the real space image, such as the electron density distribution ...
متن کاملPhase determination and extension using X-ray multiple diffraction and the maximum-entropy method.
The extension of the phases of the structure factors of the organic crystal C(25)H(25)NO(2) from 77 starting individual phases using the maximum-entropy method is reported. These starting phases were determined from 90 experimental triplet phases calculated from 215 measured psi-scan three-beam and four-beam diffraction profiles obtained with a rotating-anode X-ray source, where the psi scans w...
متن کاملCritical Analysis of Non-Nuclear Electron-Density Maxima and the Maximum Entropy Method.
Experimental evidence for the existence of non-nuclear maxima in charge densities is questioned. It is shown that the non-nuclear maxima reported for silicon are artifacts of the maximum entropy method that was used to analyze the x-ray diffraction data. This method can be improved by the use of appropriate prior information. We report systematic tests of the improved method leading to the abse...
متن کاملNuclear-weighted X-ray maximum entropy method - NXMEM.
Subtle structural features such as disorder and anharmonic motion may be accurately characterized from nuclear density distributions (NDDs). As a viable alternative to neutron diffraction, this paper introduces a new approach named the nuclear-weighted X-ray maximum entropy method (NXMEM) for reconstructing pseudo NDDs. It calculates an electron-weighted nuclear density distribution (eNDD), exp...
متن کامل