Hyperfine splitting in muonic hydrogen constrains new pseudoscalar interactions
نویسندگان
چکیده
منابع مشابه
Leading Chiral Logs to the Hyperfine Splitting of the Hydrogen and Muonic Hydrogen
We study the hydrogen and muonic hydrogen within an effective field theory framework. We perform the matching between heavy baryon effective theory coupled to photons and leptons and the relevant effective field theory at atomic scales. This matching can be performed in a perturbative expansion in α, 1/mp and the chiral counting. We then compute the O(m3liα /mp × logs) contribution (including t...
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We study the hydrogen and muonic hydrogen within an effective field theory framework. We perform the matching between heavy baryon effective theory coupled to photons and leptons and the relevant effective field theory at atomic scales. This matching can be performed in a perturbative expansion in α, 1/mp and the chiral counting. We then compute the O(m3liα /mp×logarithms) contribution (includi...
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While measurements of the hyperfine structure of hydrogen-like atoms are traditionally regarded as test of bound-state QED, we assume that theoretical QED predictions are accurate and discuss the information about the electromagnetic structure of protons that could be extracted from the experimental values of the ground state hyperfine splitting in hydrogen and muonic hydrogen. Using recent the...
متن کاملContribution of Hadronic Vacuum Polarization to Hyperfine Splitting of Muonic Hydrogen
The contribution of hadronic vacuum polarization to the hyperfine splitting of the muonic hydrogen ground state is calculated with the account of experimental data on the cross section of e+e− → annihilation into hadrons and the dipole parameterization of electromagnetic proton form factors.
متن کاملNew Evaluation of Proton Structure Corrections to Hydrogen Hyperfine Splitting
We consider the proton structure corrections to hydrogen ground-state hyperfine structure, focusing on a state-of-the-art evaluation of the inelastic nucleon corrections—the polarizability corrections—using analytic fits to the most recent data. We find a value for the fractional correction ∆pol of 1.3 ± 0.3 ppm. This is 1–2 ppm smaller than the value of ∆pol one would deduce using hyperfine sp...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2015
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2015.05.025