proton electron spectrometer 质子电子分光仪,质子电子谱仪,质子中子分光仪 Electron Mass 电子质量依据相对论的结果,质量可以用动能来表示,电子的有效质量(m)随它的速率而变化。 proton rest mass 质子的静止质量 proton electron event 质子电子事件 electron mass 电子质量 mass of the electron 电子质量 相似...
4) electron mass 电子质量 1. The electron mass is measured, and the linewidth of the coherent scattering is analyzed. 测量了电子质量,分析了相干散射线宽,测量了非相干散射光子的能量,算出了非相干散射微分截面,给出了Θ~Θ+dΘ内散射光子微分截面与散射角关系。5) hydrogen to proton mass ratio ...
proton-electron mass ratioquintessenceRecent astrophysical observations of quasar absorption systems indicate that the fine structure constant u03b1 and the proton-electron mass ratio u03bc may have evolved through the history of the universe. Motivated by these observations, we consider the cosmological...
Proton and Electron Mass-Energy Equivalence to Displaced Vacuum Energy By: Ray Fleming Abstract Two of the great mysteries of physics are the origin of mass, and the mysterious mass ratio between the proton and electron of ~1836. In this paper it is shown that the mass-energy of the proton...
The UW Penning trap mass spectrometer has been used to improve the values for the electron's atomic mass and the proton-electron mass ratio. The cyclotron frequency of small clouds of /spl les/15 electrons is compared with the cyclotron frequency of a single trapped carbon ion (C/sup 6+/...
resonance ion storage technique allows cyclotron resonances for both electrons and protons, alternately trapped in the same magnetic well, to be compared in order to yield the proton-electron mass ratio m p/ m e = 1836.152470(76). The 41 p.p.b. uncertainty primarily reflects a systematic ...
A new substantive proton to electron mass ratio constraint on rolling scalar field cosmologiesdoi:10.1093/mnras/stt355cosmological parameterscosmology: theorydark energyearly UniverseNew PKS 1830−211 radio frequency observations of methanol at a redshift of 0.885 82 have established the most ...
On a possible variation of the proton-to-electron mass ratio: H2 spectra in the line of sight of high-redshift quasars and in the laboratoryOn a possible variation of the proton-to-electron mass ratio: H2 spectra in the line of sight of high-redshift quasars and in the laboratoryExperim...
Strong Limit on a Variable Proton-to-Electron Mass Ratio from Molecules in the Distant Universe We report deep Green Bank Telescope (GBT) spectroscopy in the redshifted NH$_3$~(1,1), CS~1-0 and H$_2$CO~0$_{m 00}$-1$_{m 01}$ lines from the $z \\sim 0.685$ absorber towards...
Proton-electron mass ratio from laser spectroscopy of HD+ at the part-per-trillion level Recent mass measurements of light atomic nuclei in Penning traps have indicated possible inconsistencies in closely related physical constants like the pro... S Patra,M Germann,JP Karr,... 被引量: 0发表:...