10–16 Jul 2016
ICISE
Asia/Ho_Chi_Minh timezone
XIIth Rencontres du Vietnam, ICISE, Quy Nhon, Vietnam

Singlet-doublet mixing in NMSSM and approximate scale symmetries

12 Jul 2016, 14:25
20m
ICISE

ICISE

Quy Nhon, Vietnam
Physics at Colliders Parallel II

Speaker

Dr Ken-ichi Okumura (Kyushu University)

Description

LHC Run I discovered the Higgs boson and revealed that it has properties almost
predicted by the SM, like spin, parity and couplings to the other SM particles.
If there exists additional light bosons having the same quantum numbers with the Higgs boson, they will mix with it through the off-diagonal mass terms.
This mixings modify the couplings of the Higgs boson and also generate couplings of the new bosons to the SM particles.
In this talk, we take the Next-to-Mininal Supersymmetric Standard Model as an example and discuss that approximate scale symmetries are useful to suppress the singlet-doublet mixing which prevents the Higgs boson mass achieving 125 GeV if the singlet-like boson is heavier than the Higgs boson and is tightly constrained from the LEP Higgs boson search if the singlet-like boson is lighter than the Higgs boson.

Primary authors

Mr Hiroki Makino (Kyushu University) Mr Kei Hagimoto (Kyushu University) Dr Ken-ichi Okumura (Kyushu University) Dr Takashi Shimomura (Miyazaki University) Dr Tatsuo Kobayashi (Hokkaido University)

Presentation materials