scholarly journals Enhancement of the Higgs pair production at the CERN LHC: The minimal supersymmetric standard model and extra dimension effects

2001 ◽  
Vol 64 (1) ◽  
Author(s):  
C. S. Kim ◽  
Kang Young Lee ◽  
Jeonghyeon Song
2022 ◽  
Vol 2022 (1) ◽  
Author(s):  
Yi Liu ◽  
Stefano Moretti ◽  
Harri Waltari

Abstract We study the possibility of measuring neutrino Yukawa couplings in the Next-to-Minimal Supersymmetric Standard Model with right-handed neutrinos (NMSSMr) when the lightest right-handed sneutrino is the Dark Matter (DM) candidate, by exploiting a ‘dijet + dilepton + Missing Transverse Energy’ (MET or "Image missing") signature. We show that, contrary to the miminal realisation of Supersymmetry (SUSY), the MSSM, wherein the DM candidate is typically a much heavier (fermionic) neutralino state, this extended model of SUSY offers one with a much lighter (bosonic) state as DM that can then be produced at the next generation of e+e− colliders with energies up to 500 GeV or so. The ensuing signal, energing from chargino pair production and subsequent decay, is extremely pure so it also affords one with the possibility of extracting the Yukawa parameters of the (s)neutrino sector. Altogether, our results serve the purpose of motivating searches for light DM signals at such machines, where the DM candidate can have a mass around the Electro-Weak (EW) scale.


2011 ◽  
Vol 126 (6) ◽  
pp. 1051-1076 ◽  
Author(s):  
Y. Kanehata ◽  
T. Kobayashi ◽  
Y. Konishi ◽  
O. Seto ◽  
T. Shimomura

1998 ◽  
Vol 13 (14) ◽  
pp. 2263-2276 ◽  
Author(s):  
HOWARD E. HABER

The theoretical structure of the Higgs sector of the Minimal Supersymmetric Standard Model (MSSM) is briefly described. An outline of Higgs phenomenology at future lepton colliders is presented, and some opportunities for probing the physics of the MSSM Higgs sector at an e-e- collider are considered.


1999 ◽  
Vol 25 (1) ◽  
pp. 27-43 ◽  
Author(s):  
Zhou Mian-Lai ◽  
Ma Wen-Gan ◽  
Han Liang ◽  
Jiang Yi ◽  
Zhou Hong

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