Khan, MSAA (2023) Renormalization group improved determination of αs, mc, and mb from the low energy moments of heavy quark current correlators. In: Physical Review D, 108 (7).
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Abstract
We determine αs, mc, and mb using the relativistic quarkonium sum rule and the renormalization group summed perturbation theory. Theoretical uncertainties, especially originating from the variation of the renormalization scale, are considerably reduced for the higher moments. Our determinations using the renormalization group summed perturbation theory are also found to be stable with respect to the use of MS¯ quark mass for the condensate terms. We obtain αs(nf=5)(Mz)=0.1171(7), m¯c=1281.1(3.8) MeV, and m¯b=4174.3(9.5) MeV. © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
| Item Type: | Journal Article |
|---|---|
| Publication: | Physical Review D |
| Publisher: | American Physical Society |
| Additional Information: | The copyright for this article belongs to author. |
| Department/Centre: | Division of Physical & Mathematical Sciences > Centre for High Energy Physics |
| Date Deposited: | 01 Mar 2024 05:20 |
| Last Modified: | 01 Mar 2024 05:20 |
| URI: | https://eprints.iisc.ac.in/id/eprint/83758 |
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