منابع مشابه
Muonic hydrogen and the proton radius puzzle
The extremely precise extraction of the proton radius by Pohl et al. from the meaAnnu. Rev. Nucl. Part. Sci. 2013, Vol. 63. doi: 10.1146/annurev-nucl-102212-170627 sured energy difference between the 2P and 2S states of muonic hydrogen disagrees significantly with that extracted from electronic hydrogen or elastic electron-proton scattering. This is the proton radius puzzle. The origins of the ...
متن کاملExperiments towards resolving the proton charge radius puzzle
We review the status of the proton charge radius puzzle. Emphasis is given to the various experiments initiated to resolve the conflict between the muonic hydrogen results and the results from scattering and regular hydrogen spectroscopy. 1 The proton charge radius puzzle The historical route to the proton charge radius (rp) is from elastic electron-proton scattering. In a completely complement...
متن کاملGeorg Raithel ( University of Michigan ) Circular - State Rydberg Atoms and the Proton Radius Puzzle
The Rydberg constant is of interest due to its relation to other fundamental constants and its role in calculations of atomic energy levels. Its current relative uncertainty stands at 5.9x10^-12 [1]. However, a large discrepancy involving the proton radius and the Rydberg constant has emerged in muonic hydrogen and deuterium (“proton radius puzzle” [2]). One concern expressed by the leading aut...
متن کاملThe Proton Spin Puzzle: A Status Report
The proton spin puzzle inspired by the EMC experiment and its present status are closely examined. Recent experimental progress is reviewed. Various factorization schemes due to the ambiguity arising from the axial anomaly are discussed. Some misconceptions in the literature about the MS factorization scheme are clarified. It is stressed that the polarized nucleon structure function g1(x) is in...
متن کاملThe Hydrogen Lamb Shift and the Proton Radius
The Lamb shift measurement and theory are now both a dynamically developing field and we give a review of the current data. Critical comparison of theory and experiment can be done using a value of the proton charge radius and we pay attention to several results of its determination. The talk is devoted to the Lamb shift in the hydrogen atom. The workshop is for exotic atoms and first of all I ...
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ژورنال
عنوان ژورنال: EPJ Web of Conferences
سال: 2017
ISSN: 2100-014X
DOI: 10.1051/epjconf/201716407048