Measurement of the running of the fine structure constant below 1 GeV with the KLOE detector
We have measured the running of the effective QED coupling constant α(s) in the time-like region 0.6<s<0.975 GeV with the KLOE detector at DAΦNE using the Initial-State Radiation process e+e−→μ+μ−γ. It represents the first measurement of the running of α(s) in this energy region. Our results s...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2017-04-01
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Series: | Physics Letters B |
Subjects: | |
Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269316307547 |