The light CP-even MSSM Higgs mass resummed to fourth logarithmic order

We present the calculation of the light neutral CP-even Higgs mass in the MSSM for a heavy SUSY spectrum by resumming enhanced terms through fourth logarithmic order (N 3 LL), keeping terms of leading order in the top Yukawa coupling α t , and NNLO in the strong coupling α s . To this goal, the thre...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2018-10, Vol.78 (10), p.1-16, Article 874
Main Authors: Harlander, R. V., Klappert, J., Franco, A. D. Ochoa, Voigt, A.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Coupling
Elementary Particles
Hadrons
Heavy Ions
Matching
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
String Theory
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Summary:We present the calculation of the light neutral CP-even Higgs mass in the MSSM for a heavy SUSY spectrum by resumming enhanced terms through fourth logarithmic order (N 3 LL), keeping terms of leading order in the top Yukawa coupling α t , and NNLO in the strong coupling α s . To this goal, the three-loop matching coefficient for the quartic Higgs coupling of the SM to the MSSM is derived to order α t 2 α s 2 by comparing the perturbative EFT to the fixed-order expression for the Higgs mass. The new matching coefficient is made available through an updated version of the program Himalaya. Numerical effects of the higher-order resummation are studied using specific examples, and sources of theoretical uncertainty on this result are discussed.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-018-6351-6