On the two-loop {sigma}(O) ({alpha}{sub s}{sup 2}) corrections to the pole mass of the t quark in the MSSM

Journal Article · Fri Feb 15 00:00:00 EST 2008 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1007/S11450-008-2015-6· OSTI ID:21077540

Bednyakov, A. V., E-mail: [e-mail]; Kazakov, D. I., E-mail: [e-mail]; Sheplyakov, A. A. ^[1]

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1. Joint Institute for Nuclear Research (Russian Federation), E-mail: [e-mail]

The paper is devoted to the calculation of two-loop {sigma}(O) {alpha}{sub s}{sup 2}) MSSM corrections to the relation between the pole mass of the t quark and its running mass in the {sigma}(DR-bar) scheme. Firstly, the value of the second-order contribution from large-mass expansion in mt/M{sub SUSY} is studied. Contrary to our expectations, this contribution turned out to be negligible. As a by-product of this calculation, the two-loop anomalous dimension of the running quark {sigma}(DR-bar) mass is obtained in the supersymmetric QCD. Secondly, the influence of the two-loop corrections to the t-quark mass on the predicted superpartner masses is investigated.

• OSTI ID: 21077540
• Journal Information: Physics of Atomic Nuclei, Vol. 71, Issue 2; Other Information: DOI: 10.1007/s11450-008-2015-6; Copyright (c) 2008 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANOMALOUS DIMENSION
CORRECTIONS
MASS
QUANTUM CHROMODYNAMICS
STANDARD MODEL
SUPERSYMMETRY
T QUARKS