Improved determination of the Higgs mass in the MSSM with heavy superpartners

Emanuele Bagnaschi (1) , Javier Pardo Vega (2, 3) , Pietro Slavich (4)

1 DESY - Deutsches Elektronen-Synchrotron [Hamburg]
2 SISSA / ISAS - Scuola Internazionale Superiore di Studi Avanzati / International School for Advanced Studies
3 ICTP - Abdus Salam International Centre for Theoretical Physics [Trieste]
4 LPTHE - Laboratoire de Physique Théorique et Hautes Energies

We present several advances in the effective field theory calculation of the Higgs mass in MSSM scenarios with heavy superparticles. In particular, we compute the dominant two-loop threshold corrections to the quartic Higgs coupling for generic values of the relevant SUSY-breaking parameters, including all contributions controlled by the strong gauge coupling and by the third-family Yukawa couplings. We also study the effects of a representative subset of dimension-six operators in the effective theory valid below the SUSY scale. Our results will allow for an improved determination of the Higgs mass and of the associated theoretical uncertainty.

Domaines: Physique des Hautes Energies - Théorie [hep-th]

Emanuele Bagnaschi, Javier Pardo Vega, Pietro Slavich. Improved determination of the Higgs mass in the MSSM with heavy superpartners. European Physical Journal C: Particles and Fields, 2017, 77 (5), pp.334. ⟨10.1140/epjc/s10052-017-4885-7⟩. ⟨hal-01526214⟩