On the two-loop corrections to the neutral Higgs boson masses in the MSSM

Autor:	Pietro Slavich, Giuseppe Degrassi, Fabio Zwirner, Andrea Brignole
Rok vydání:	2002
Předmět:	Loop (topology) Physics Nuclear and High Energy Physics Particle physics High Energy Physics::Phenomenology Higgs boson Parameter space Mass matrix Minimal Supersymmetric Standard Model
Zdroj:	Nuclear Physics B. 631:195-218
ISSN:	0550-3213
DOI:	10.1016/s0550-3213(02)00184-0
Popis:	We compute the O(alpha_t^2) two-loop corrections to the neutral CP-even Higgs boson mass matrix in the Minimal Supersymmetric Standard Model, for arbitrary values of mA and of the parameters in the stop sector, in the effective potential approach. In a large region of parameter space these corrections are sizeable, increasing the prediction for mh by several GeV. We present explicit analytical formulae for a simplified case. We discuss the inclusion of momentum-dependent corrections and some possible ways of assigning the input parameters.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0e61116ea87dbfa74185ee0bf7f173da https://doi.org/10.1016/s0550-3213(02)00184-0 Zobrazit plný text záznamu Full Text from ScienceDirect