Higgs boson self-coupling constraints from single Higgs, double Higgs and electroweak measurements

We set constraints on the trilinear Higgs boson self-coupling, ?3, by combining information coming from W mass and leptonic effective Weinberg angle, electroweak precision observables, with single analyses targeting ??,ZZ?,WW?,?+?? b¯b decay channels double in bb¯bb¯,bb¯?+?? bb¯?? channels, performed ATLAS collaboration. With assumption that new physics affects only potential, values outside interval ?1.8?3SM<?3<9.2?3SM are excluded at 95% confidence level. respect to similar do not include observables our analysis shows a stronger constraint both positive negative of ?3.