scholarly journals Higher-order proton structure corrections to the Lamb shift in muonic hydrogen

2011 ◽  
Vol 84 (2) ◽  
Author(s):  
Carl E. Carlson ◽  
Marc Vanderhaeghen
Keyword(s):  
Lamb Shift ◽  
Muonic Hydrogen ◽  
Higher Order ◽  
Proton Structure

scholarly journals The sigma-meson exchange contribution to the muonic hydrogen Lamb shift

2019 ◽  
Vol 212 ◽  
pp. 07003 ◽  
Author(s):  
A.E. Dorokhov ◽  
A.P. Martynenko ◽  
F.A. Martynenko ◽  
A.E. Radzhabov
Keyword(s):  
Experimental Data ◽  
Lamb Shift ◽  
Scalar Meson ◽  
Muonic Hydrogen ◽  
Meson Exchange ◽  
Exchange Contribution ◽  
Meson Coupling ◽  
Decay Widths ◽  
Precise Experimental Data ◽  
Sigma Meson

The sigma(ξ)meson exchange contribution to the potential of the muon-proton interactionin muonichydrogen inducedbythe ξ-meson coupling to two photons is estimated. The transition form factor ξ → γγ is deduced from the quark model and experimental data on the decay widths Γσγγ. It is shown that scalar meson exchange contribution to the Lamb shift in muonic hydrogen, △ELs(2P−2S ),is rather large and relevant for a comparison with coming precise experimental data.

Higher-Order Binding Corrections to the Lamb Shift

1981 ◽  
Vol 47 (24) ◽  
pp. 1723-1725 ◽  
Author(s):  
Jonathan Sapirstein
Keyword(s):  
Lamb Shift ◽  
Higher Order

scholarly journals Proton polarizability and lamb shift in the muonic hydrogen atom

2000 ◽  
Vol 63 (5) ◽  
pp. 845-849 ◽  
Author(s):  
A. P. Martynenko ◽  
R. N. Faustov
Keyword(s):  
Hydrogen Atom ◽  
Lamb Shift ◽  
Muonic Hydrogen

Higher Order Terms in the Lamb Shift Calculation

1960 ◽  
Vol 4 (11) ◽  
pp. 583-584 ◽  
Author(s):  
H. M. Fried ◽  
D. R. Yennie
Keyword(s):  
Lamb Shift ◽  
Higher Order ◽  
Higher Order Terms ◽  
Shift Calculation

scholarly journals Proton Structure from the Measurement of 2S-2P Transition Frequencies of Muonic Hydrogen

Science ◽  
2013 ◽  
Vol 339 (6118) ◽  
pp. 417-420 ◽  
Author(s):  
A. Antognini ◽  
F. Nez ◽  
K. Schuhmann ◽  
F. D. Amaro ◽  
F. Biraben ◽  
...  
Keyword(s):  
Muonic Hydrogen ◽  
Proton Structure

The muonic hydrogen Lamb-shift experiment

2005 ◽  
Vol 83 (4) ◽  
pp. 339-349 ◽  
Author(s):  
R Pohl ◽  
A Antognini ◽  
F D Amaro ◽  
F Biraben ◽  
J MR Cardoso ◽  
...  
Keyword(s):  
Charge Radius ◽  
Quantum Electrodynamics ◽  
Lamb Shift ◽  
Laser System ◽  
Bound State ◽  
Muonic Hydrogen ◽  
X Rays ◽  
Large Area ◽  
Proton Charge ◽  
Proton Charge Radius

The charge radius of the proton, the simplest nucleus, is known from electron-scattering experiments only with a surprisingly low precision of about 2%. The poor knowledge of the proton charge radius restricts tests of bound-state quantum electrodynamics (QED) to the precision level of about 6 × 10–6, although the experimental data themselves (1S Lamb shift in hydrogen) have reached a precision of 2 × 10–6. The determination of the proton charge radius with an accuracy of 10–3 is the main goal of our experiment, opening a way to check bound-state QED predictions to a level of 10–7. The principle is to measure the 2S–2P energy difference in muonic hydrogen (µ–p) by infrared laser spectroscopy. The first data were taken in the second half of 2003. Muons from our unique very-low-energy muon beam are stopped at a rate of ~100 s–1 in 0.6 mbar H2 gas where the lifetime of the formed µp(2S) atoms is about 1.3 µs. An incoming muon triggers a pulsed multistage laser system that delivers ~0.2 mJ at λ ≈ 6 µm. Following the laser excitation µp(2S) → µp(2P) we observe the 1.9 keV X-rays from 2P–1S transitions using large area avalanche photodiodes. The resonance frequency, and, hence, the Lamb shift and the proton radius, is determined by measuring the intensity of these X-rays as a function of the laser wavelength. A broad range of laser frequencies was scanned in 2003 and the analysis is currently under way. PACS Nos.: 36.10.Dr, 14.20.Dh, 42.62.Fi

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