Precise determination of α s from relativistic quarkonium sum rules
Abstract We determine the strong coupling αs(m Z ) from dimensionless ratios of roots of moments of the charm- and bottom-quark vector and charm pseudo-scalar correlators, dubbed R q X , n ≡ M q X , n 1 n / M q X , n + 1 1 n + 1 , $$ {R}_q^{X,n}\equiv \left({M}_q^{X,n}\right)\frac{1}{n}/{\left({M}_q...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-03-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP03(2020)094 |