Proton-electron mass ratio from HD${}^{+}$ revisited

Abstract

We present a new derivation of the proton-electron mass ratio from the hydrogen molecular ion, HD${}^{+}$. The derivation entails the adjustment of the mass ratio in highly precise theory so as to reproduce accurately measured ro-vibrational frequencies. This work is motivated by recent improvements of the theory, as well as the more accurate value of the electron mass in the recently published CODATA-14 set of fundamental constants, which justifies using it as input data in the adjustment, rather than the proton mass value as done in previous works. This leads to significantly different sensitivity coefficients and, consequently, a different value and larger uncertainty margin of the proton-electron mass ratio as obtained from HD${}^{+}$.

References in corpus (14)

• CODATA Recommended Values of the Fundamental Physical Constants: 2010
• CODATA Recommended Values of the Fundamental Physical Constants: 2014
• Probing QED and fundamental constants through laser spectroscopy of vibrational transitions in HD+
• Addressing and manipulation of individual hyperfine states in cold trapped molecular ions and application to HD^{+} frequency metrology
• High-precision measurement of the proton's atomic mass
• Fundamental transitions and ionization energies of the hydrogen molecular ions at the few ppt level
• Relativistic corrections of mα^6 order to the ro-vibrational spectrum of H_2^+ and HD^+ molecular ions
• Theoretical transition frequencies beyond 0.1 ppb accuracy in H${}_2^{+}$, HD${}^{+}$, and antiprotonic helium
• Hydrogen molecular ions for improved determination of fundamental constants
• Test of the theoretical hyperfine structure of the molecular hydrogen ion at the 1-ppm level
• Two-photon spectroscopy of trapped HD${}^{+}$ ions in the Lamb-Dicke regime
• High-precision spectroscopy of the HD+ molecule at the 1-p.p.b. level
• Precision spectroscopy of the hydrogen molecular ions HD${}^{+}$
• One-loop vacuum polarization at m$\alpha$7 and higher orders for three-body molecular systems

Cited by in corpus (6)

• Proton-Electron Mass Ratio from Laser Spectroscopy of HD${}^{+}$ at the Part-Per-Trillion Level
• Perspectives on testing fundamental physics with highly charged ions in Penning traps
• Generation of rotational ground state HD${}^{+}$ ions in an ion trap using a resonance-enhanced threshold photoionization process
• Probing the electron-to-proton mass ratio gradient in the Milky Way with class I methanol masers
• Hyperfine structure and electric quadrupole transitions in the deuterium molecular ion
• Prospect for precision quantum logic spectroscopy of vibrational overtone transitions in molecular oxygen ions