skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Muonic hydrogen and MeV forces

Abstract

We explore the possibility that a new interaction between muons and protons is responsible for the discrepancy between the CODATA value of the proton-radius and the value deduced from the measurement of the Lamb shift in muonic hydrogen. We show that a new force carrier with roughly MeV-mass can account for the observed energy-shift as well as the discrepancy in the muon anomalous magnetic moment. However, measurements in other systems constrain the couplings to electrons and neutrons to be suppressed relative to the couplings to muons and protons, which seems challenging from a theoretical point of view. One can nevertheless make predictions for energy shifts in muonic deuterium, muonic helium, and true muonium under the assumption that the new particle couples dominantly to muons and protons.

Authors:
 [1];  [2]
  1. Department of Physics, Williams College, Williamstown, Massachusetts 01267 (United States)
  2. Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, New York 10003 (United States)
Publication Date:
OSTI Identifier:
21502533
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 83; Journal Issue: 10; Other Information: DOI: 10.1103/PhysRevD.83.101702; (c) 2011 American Institute of Physics; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CARRIERS; COUPLING; DEUTERIUM; ELECTRONS; FORECASTING; HELIUM; HYDROGEN; INTERACTIONS; LAMB SHIFT; MAGNETIC MOMENTS; MASS; MEV RANGE; MUONIUM; MUONS; NEUTRONS; PROTONS; BARYONS; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; FERMIONS; FLUIDS; GASES; HADRONS; HYDROGEN ISOTOPES; ISOTOPES; LEPTONS; LIGHT NUCLEI; NONMETALS; NUCLEI; NUCLEONS; ODD-ODD NUCLEI; RARE GASES; SPECTRAL SHIFT; STABLE ISOTOPES

Citation Formats

Tucker-Smith, David, Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, New York 10003, School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540, and Yavin, Itay. Muonic hydrogen and MeV forces. United States: N. p., 2011. Web. doi:10.1103/PHYSREVD.83.101702.
Tucker-Smith, David, Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, New York 10003, School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540, & Yavin, Itay. Muonic hydrogen and MeV forces. United States. https://doi.org/10.1103/PHYSREVD.83.101702
Tucker-Smith, David, Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, New York 10003, School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540, and Yavin, Itay. Sun . "Muonic hydrogen and MeV forces". United States. https://doi.org/10.1103/PHYSREVD.83.101702.
@article{osti_21502533,
title = {Muonic hydrogen and MeV forces},
author = {Tucker-Smith, David and Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, New York 10003 and School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540 and Yavin, Itay},
abstractNote = {We explore the possibility that a new interaction between muons and protons is responsible for the discrepancy between the CODATA value of the proton-radius and the value deduced from the measurement of the Lamb shift in muonic hydrogen. We show that a new force carrier with roughly MeV-mass can account for the observed energy-shift as well as the discrepancy in the muon anomalous magnetic moment. However, measurements in other systems constrain the couplings to electrons and neutrons to be suppressed relative to the couplings to muons and protons, which seems challenging from a theoretical point of view. One can nevertheless make predictions for energy shifts in muonic deuterium, muonic helium, and true muonium under the assumption that the new particle couples dominantly to muons and protons.},
doi = {10.1103/PHYSREVD.83.101702},
url = {https://www.osti.gov/biblio/21502533}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 10,
volume = 83,
place = {United States},
year = {2011},
month = {5}
}