• Proton-to-electron mass ratio - Wikipedia

    en.wikipedia.org/wiki/Proton-to-electron_mass_ratio In physics, the proton-to-electron mass ratio, μ or β, is simply the rest mass of the proton (a baryon found in atoms) divided by that of the electron (a lepton found in atoms). Because this is a ratio of like-dimensioned physical quantities, it is a dimensionless quantity, a function of the dimensionless physical constants, and has numerical value independent of the system of units, namely:
  • Proton-Electron Mass Ratio - EWT

    energywavetheory.com/physics-constants/proton-electron-mass-ratio Explanation Although it is a ratio of two other constants (proton mass and electron mass), the proton-electron mass ratio is commonly used in physics. And the poor neutron was left out… Derivation – Proton-Electron Mass Ratio The proton-electron mass ratio is derived based on the constants for the electron mass and proton mass+ Read More
  • CODATA Value: proton-electron mass ratio

    physics.nist.gov/cgi-bin/cuu/Value proton-electron mass ratio: Numerical value: 1836.152 673 43 Standard uncertainty: 0.000 000 11 Relative standard uncertainty: 6.0 x 10-11: Concise form
  • Proton-to-Electron Mass Ratio - arXiv

    arxiv.org/pdf/1109.5076.pdf Sensitivity of Transitions in Internal Rotor Molecules to a Possible Variation of the Proton-to-Electron Mass Ratio Paul Jansen,1 Isabelle Kleiner,2 Li-Hong Xu,3 Wim Ubachs,1 and Hendrick L. Bethlem1 1Institute for Lasers, Life and Biophotonics, VU University Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands
  • Proton-electron mass ratio from laser spectroscopy of HD+ ...

    science.sciencemag.org/content/early/2020/07/29/science.aba0453.full Recent mass measurements of light atomic nuclei in Penning traps have indicated possible inconsistencies in closely related physical constants like the proton-electron and deuteron-proton mass ratios. These quantities also influence the predicted vibrational spectrum of the deuterated molecular hydrogen ion in its electronic ground state. We measure the frequency of the v = 0→9 overtone ...
  • Proton-electron mass ratio: a geometric inference. - Free ...

    www.thefreelibrary.com/Proton-electron+mass+ratio%3a+a+geometric+inferenc... 1 Introduction The volumes of certain associated symmetric spaces have been used as a means to estimate the proton-electron mass ratio, besides the ratios among leptons and mesons masses [1-7].
  • Toward a Determination of the Proton-Electron Mass Ratio ...

    www.ncbi.nlm.nih.gov/pubmed/29756862 Provided that the theoretical calculation reaches the same accuracy, the present measurement will lead to a determination of the proton-to-electron mass ratio with a precision of 1.3 parts per billion. PMID: 29756862
  • A Stringent Limit on a Drifting Proton-to-Electron Mass ...

    science.sciencemag.org/content/339/6115/46.full The standard model of physics is built on the fundamental constants of nature, but it does not provide an explanation for their values, nor require their constancy over space and time. Here we set a limit on a possible cosmological variation of the proton-to-electron mass ratio μ by comparing transitions in methanol observed in the early universe with those measured in the laboratory. From ...
  • Highly Sensitive Ammonia Probes of a Variable Proton-to ...

    pubs.acs.org/doi/10.1021/jz500163j Anomalous phosphine sensitivity coefficients as probes for a possible variation of the proton-to-electron mass ratio. Monthly Notices of the Royal Astronomical Society 2018, 473 (4) , 4986-4992. DOI: 10.1093/mnras/stx2696. A.E. Sitnitsky.
  • What is the order of the E/M ratio of electrons, protons ...

    www.quora.com/What-is-the-order-of-the-E-M-ratio-of-electrons-protons-neu... I think you meant the charge/mass ratio by E/M. Electrons and protons have the same charge.(1.602×10^-19c)But protons are 1840 times heavier than electrons.E/M of any particle decreases if the mass is increased. So the E/M of electron is higher th...