Renormalization group improvement and QCD sum rules

Alam Khan, MSA (2023) Renormalization group improvement and QCD sum rules. In: Nuclear and Particle Physics Proceedings .

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Abstract

We summarize the results obtained for the quark masses (u,d,s,c, and b) in Refs. 1,2 and strong coupling (αs) using renormalization group (RG) improvement of the theoretical expressions and experimental inputs that enter in the QCD sum rules. We obtain mu(2GeV)=2.00�0.40+0.33MeV, md(2GeV)=4.21�0.45+0.48MeV, and ms(2GeV)=104.34�4.24+4.32MeV using Borel Laplace sum rules for the divergence of the axial vector currents. The relativistic sum rules for the moments of the heavy quark currents lead to the determination of αs(MZ)=0.1171(7), m�c=1281.1(3.8)MeV and m�b=4174.3(9.5)MeV. © 2023 Elsevier B.V.

Item Type:	Journal Article
Publication:	Nuclear and Particle Physics Proceedings
Publisher:	Elsevier B.V.
Additional Information:	The copyright for this article belongs to author.
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited:	04 Mar 2024 08:38
Last Modified:	04 Mar 2024 08:38
URI:	https://eprints.iisc.ac.in/id/eprint/84311

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