High-precision measurement of the proton's atomic mass

Abstract

We report on the precise measurement of the atomic mass of a single proton with a purpose-built Penning-trap system. With a precision of 32 parts-per-trillion our result not only improves on the current CODATA literature value by a factor of three, but also disagrees with it at a level of about 3 standard deviations.

References in corpus (4)

• CODATA Recommended Values of the Fundamental Physical Constants: 2014
• High-precision measurement of the atomic mass of the electron
• g factor of lithiumlike silicon 28Si11+
• Highly-sensitive superconducting circuits at ~700 kHz with tunable quality factors for image-current detection of single trapped antiprotons

Cited by in corpus (35)

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• Proton-Electron Mass Ratio from Laser Spectroscopy of HD${}^{+}$ at the Part-Per-Trillion Level
• Toward a determination of the proton-electron mass ratio from the Lamb-dip measurement of HD
• Theory of the Lamb shift in hydrogen and light hydrogen-like ions
• Nuclear Charge Radii of the Nickel Isotopes ${}^{58-68,70}$Ni
• Three-photon exchange nuclear structure correction in hydrogenic systems
• Penning-trap mass measurements of the deuteron and the HD+ molecular ion
• Direct measurement of the ${}^3$He${}^{+}$ magnetic moments
• Quantum control of molecules for fundamental physics
• High-precision mass spectrometer for light ions
• Theory of the Lamb shift and Fine Structure in muonic ${}^4\mathrm{He}$ ions and the muonic ${}^3\mathrm{He}{-}^4\mathrm{He}$ Isotope Shift
• Probing new bosons and nuclear structure with ytterbium isotope shifts
• Sympathetic cooling of a trapped proton mediated by an LC circuit
• Perspectives on testing fundamental physics with highly charged ions in Penning traps
• Trapping, cooling, and photodissociation analysis of state-selected H$\_2^{+}$ ions produced by (3+1) multiphoton ionization
• Self-consistent extraction of spectroscopic bounds on light new physics
• Hierarchical Bayesian Thermonuclear Rate for the ${}^7$Be(n,p)${}^7$Li Big Bang Nucleosynthesis Reaction
• Site-resolved imaging of beryllium ion crystals in a high-optical-access Penning trap with inbore optomechanics
• The TRAPSENSOR Facility: an Open-Ring 7-Tesla Penning Trap for Laser-Based Precision Experiments
• Hyperfine splitting in simple ions for the search of the variation of fundamental constants
• Penning-Trap Mass Measurement of Helium-4
• Deuterium spectroscopy for enhanced bounds on physics beyond the Standard Model
• Precision measurements of the fundamental properties of the proton and antiproton
• Proton-electron mass ratio from HD${}^{+}$ revisited
• Population dynamics in sideband cooling of trapped ions outside the Lamb-Dicke regime
• Stark quenching of rovibrational states of H2+ due to motion in a magnetic field
• Infrared study of the pressure-induced isostructural metallic transition in Mo${}_{0:5}$W${}_{0:5}$S${}_2$
• Tank-Circuit Assisted Coupling Method for Sympathetic Laser Cooling
• BASE-STEP: A transportable antiproton reservoir for fundamental interaction studies
• Sub-part-per-trillion test of the Standard Model with atomic hydrogen
• Nuclear Mass Measurements With Radioactive Ion Beams
• Motional studies of one and two laser-cooled trapped ions for electric-field sensing applications
• Strong coherent ion-electron coupling using a wire data bus
• A Digital Feedback System for Advanced Ion Manipulation Techniques in Penning Traps
• Quantum Calculations of the Cavity Shift in Electron Magnetic Moment Measurements