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Proton radius puzzle

The proton radius puzzle was a problem in physics relating to the size of the proton. Historically the proton charge radius was measured by two independent methods, which converged to a value of about 0.877 fm. This value was challenged by a 2010 experiment using a third method, which produced a radius about 4% smaller than this, at 0.842 fm. New…

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Overview

Radius definition

Problem

Proposed resolutions

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Proton radius puzzle

Nodes30
Edges29
Triples5
Avg. degree1.93
Density0.066667
Components1

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Proton radius puzzle

Top relations

related to Data analysis method · 5
Proton radius puzzle → Alarcón, Another, Effectively, In, Jefferson Lab

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Important terminology

radius proton fm smaller value measurements data spectroscopy electron 2010 new results hydrogen charge scattering experiment method experimental reported physics

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Proton radius puzzlerelated to Data analysis methodIn0.60section
Proton radius puzzlerelated to Data analysis methodAlarcón0.60section
Proton radius puzzlerelated to Data analysis methodJefferson Lab0.60section
Proton radius puzzlerelated to Data analysis methodEffectively0.60section
Proton radius puzzlerelated to Data analysis methodAnother0.60section

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