-- 1 2 -- T V - -3-1. ---- -- -- U -- -- C SU(3) L U(1) X 1 2 L L [1]. c aR aL aL aL l ~ (1,3,-1/3), (1,1,-1)~ aR l , a =1,2,3. (1) C , SU(3) L X . (3,1,-1/3)~D (3,1,2/3),~ U,(3,1,-1/3)~ d (3,1,2/3),~ RR aRaR u (2) L L . (1,3,-1/3)~ 0 3 2 0 1 , (1,3,2/3)~ 3 0 2 1 (3) 0 2 1 u , 0 0 2 1 v (4) SU(3) C SU(3) L U(1) X )1( SU(3) C SU(2) L U(1) Y )2( SU(3) C U(1) Q TeVuv GeV vu, . (5) LNC LNV L (6) (7) (8) ϕ. Khai tri-- a T L 9 T X , NC P CC P - 1 2 - 6 7 0 3 4 . (9) (10) 0 Higgs tru 0 1 - 0 , H 0 1 W , Y ). 00 (11) -- 0 W + W - 0 Y + Y - , H 0 W + Y - , H 0 Y + W - 0 W + Y - , H 0 Y + W - . - H ϕ. WH : YH : -photon (12) [1]. - -- -- HHH 0 (13) HHH 0 1 (14) 0 0 0 1 H 0 1 H -- - -- 0 1 0 ,HH - - - 1. 2. P. V. Dong, H.N. Long, Economical 3-3-1 model, Adv.High Energy Phys.2008:739492, 2008. 3. D. T. Binh, T.T. Huong, D. T. Huong, H. N. Long and D. V. Soa, Quartic gauge boson coupling and tree unitarity in the 3-3-1 models, J.Phys.G29: pp.1213-1226, 2003. 4. William J. Marciano, Cen Zhang and Scott Willenbrock, Higgs decay to two photons Phys.Rev D85, 013002, 2012. INTERACTIONS OF HIGGS BOSON IN ECONOMICAL 3-3-1 MODEL Ha Thanh Hung, Nguyen Thi Thu Hang Abstract In this work, we indicate all interactions of Higgs bosons in economical 3-3-1 model, include neutral Higgs and charge Higgs. Thereby, we can calculate amplitudes of Higgs decay processes to two photons, and it is interested in accelerators, contribute to improve the theoretical model and put development science. . work, we indicate all interactions of Higgs bosons in economical 3-3-1 model, include neutral Higgs and charge Higgs. Thereby, we can calculate amplitudes of Higgs decay processes to two photons,. J. Marciano, Cen Zhang and Scott Willenbrock, Higgs decay to two photons Phys.Rev D85, 013002, 2012. INTERACTIONS OF HIGGS BOSON IN ECONOMICAL 3-3-1 MODEL Ha Thanh Hung, Nguyen Thi Thu Hang. Economical 3-3-1 model, Adv.High Energy Phys.2008:739492, 2008. 3. D. T. Binh, T.T. Huong, D. T. Huong, H. N. Long and D. V. Soa, Quartic gauge boson coupling and tree unitarity in the 3-3-1 models,