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ZhETF, Vol. 148, No. 6, p. 1115 (December 2015)
(English translation - JETP, Vol. 121, No. 6, p. 976, December 2015 available online at www.springer.com )

MUON ANOMALOUS MAGNETIC MOMENT IN THE SUPERSYMMETRIC ECONOMICAL 3-3-1 MODEL
Binh D.T., Huong D.T., Long H.N.

Received: May 11, 2015

DOI: 10.7868/S004445101512007X

DJVU (264.7K) PDF (497.3K)

We investigate the muon anomalous magnetic moment in the context of a supersymmetric version of the economical 3-3-1 model. We compute the 1-loop contribution of superpartner particles. We show that the contribution of superparticle loops become significant when $\tan \gamma$ is large. We investigate the cases of both small and large values of $\tan \gamma$ . We find the region of the parameter space where the slepton masses of a few hundred GeV are favored by the muon g-2 for small $\tan \gamma$ ( $\tan \gamma\approx 5$ ). Numerical estimation gives the mass of supersymmetric particles, the mass of gauginos $m_G\approx 700$ GeV, and the light slepton mass $m_{\tilde{L}}$ of the order of \cO (100) GeV. When $\tan{\gamma}$ is large ( $\tan{\gamma}\approx 60$ ), the charged slepton mass $m_{\tilde{L}}$ and the gaugino mass m_G are \cO(1) TeV, while the sneutrino mass $\approx 450$ GeV is in the reach of the LHC.

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