نتایج جستجو برای: charge radius
تعداد نتایج: 187015 فیلتر نتایج به سال:
We use distorted wave electron scattering calculations to extract the weak charge form factor FW (q̄), the weak charge radius RW , and the point neutron radius Rn of 208Pb from the Lead Radius Experiment (PREX) parity-violating asymmetry measurement. The form factor is the Fourier transform of the weak charge density at the average momentum transfer q̄ = 0.475 fm−1. We findFW (q̄) = 0.204 ± 0.028 ...
A proton is a bound state of strong interaction, governed by Quantum Chromodynamics (QCD). The electric charge radius proton, denoted rEp, characterizes the spatial distribution its carried quarks. It an important input for bound-state Electrodynamic (QED) calculations hydrogen atomic energy levels. However, physicists have been puzzled large discrepancy between rEp measurements from muonic spe...
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