نتایج جستجو برای: Amplitudes

تعداد نتایج: 28883  

In addition to optimal conditions, invariant laws of Lorentz, parity and time reversal are imposed to find the relation between observables (spin rotation parameters) and bilinear combination of helicity amplitudes in pion-proton elastic scattering at 6.0 GeV/c. By normalizing the differential cross-section to unity, the magnitudes of helicity amplitudes and the angle between them are dete...

Journal: :Journal of High Energy Physics 2021

We provide a systematic method to compute tree-level scattering amplitudes with spinning external states from scalar in arbitrary spacetime dimensions. write down analytic answers for various amplitudes, including the four graviton amplitude due massive spin $J$ exchange. verify results by computing angular distributions 3 + 1 dimensions using identities involving Jacobi polynomials.

Journal: :journal of current ophthalmology 0
محمد اعتضاد رضوی mohammad etezad razavi ستاره ثاقب حسین پور setareh sagheb hossein poor آمنه دانشیار amaneh daneshyar

purpose : to determine the fusional amplitudes and the frequency of hetrophoria, in our patients methods : in this cross sectional study, 111 adults with mean age of 25.6 years were included. all participants had best corrected visual acuity (bcva) better than 20/25, more than 60 sec of arc stereopsis and had no heterotropia or other significant eye disorders. fusional amplitudes were measured ...

Journal: :Progress of Theoretical Physics 1974

In this project, the Faddeev-Watson-Lovelace (FWL) formalism is generalized to large scattering angles. The angular range includes 0-180 degrees. Using this method, the charge transfer differential cross-sections are calculated, in a second-order approximation, for collision of energetic positrons and electrons with neutral positronium atoms. In this approximation, the rearrangement amplitude c...

ژورنال: فیزیک زمین و فضا 2015

Refractor ambiguities are big problem in seismic refraction method especially in seismic engineering. There can be hidden subsurface geological phenomena such as hidden faults and shear zones which are not simply predicted by the travel-time graph or some geophysical methods. Head wave amplitudes are used to show the resolution of refractor ambiguities and the existence of anisotropy in complex...

Journal: :Journal of High Energy Physics 2008

Journal: :journal of sciences islamic republic of iran 0

in addition to optimal conditions, invariant laws of lorentz, parity and time reversal are imposed to find the relation between observables (spin rotation parameters) and bilinear combination of helicity amplitudes in pion-proton elastic scattering at 6.0 gev/c. by normalizing the differential cross-section to unity, the magnitudes of helicity amplitudes and the angle between them are determine...

Optimal conditions are used in nondynamical formalism to diagonalize the pionproton reaction matrix as much as possible. Invariance laws are imposed to simplify the relationship between observables and bilinear combination of amplitudes. Transverse amplitudes are determined by using measured polarization parameter in xfp elastic scattering at 6.0 GeVIC

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