Small-momentum expansion of heavy-quark correlators in the large-β 0 limit and α s extractions
Abstract We calculate the small-momentum expansion of vector, axial-vector, scalar, and pseudo-scalar heavy-quark current correlators in the large-β 0 limit of QCD, extending the analysis of Grozin and Sturm beyond the vector current. Our results are used to study the higher-order behaviour of dimen...
| Published in: | Journal of High Energy Physics |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2021-08-01
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| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP08(2021)027 |