# Changes between Version 3 and Version 4 of TwoHiggsDoublet

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Timestamp:
04/13/12 17:48:40 (8 years ago)
Comment:

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### Legend:

Unmodified
 v3 more than twenty years, even though it has often been only considered as the scalar sector of larger models like the MSSM \citeGunion:1989we} or Little Higgs models \cite{Gunion:1989we} or Little Higgs models \cite{Arkani-Hamed:2002qx}. The generic 2HDM considered here may display by itself an interesting phenomenology justifying its The scalar potential in the Higgs basis reads %$V &=& \mu_1 H_1^\dag H_1 +\mu_2 H_2^\dag H_2-\left(\mu_3 H_1^\dag H_2+\mathrm{h.c.}\right)\\ & & \lambda_1 \left(H_1^\dag H_1\right)^2+ \lambda_2 \left(H_2^\dag H_2\right)^2\\ & & + \lambda_3 \left(H_1^\dag H_1\right)\left(H_2^\dag H_2\right)+ \lambda_4 \left(H_1^\dag H_2\right)\left(H_2^\dag H_1\right)\\ & & +\left[\left( \lambda_5 H_1^\dag H_2 + \lambda_6 H_1^\dag H_1+ \lambda_7 H_2^\dag H_2\right)\left(H_1^\dag H_2\right)+\mathrm{h.c.}\right]\,.$% $V = \mu_1 H_1^\dag H_1 +\mu_2 H_2^\dag H_2-\left(\mu_3 H_1^\dag H_2+\mathrm{h.c.}\right) \lambda_1 \left(H_1^\dag H_1\right)^2+ \lambda_2 \left(H_2^\dagH_2\right)^2 + \lambda_3 \left(H_1^\dag H_1\right)\left(H_2^\dag H_2\right)+ \lambda_4 \left(H_1^\dag H_2\right)\left(H_2^\dag H_1\right) +\left[\left( \lambda_5 H_1^\dag H_2 + \lambda_6 H_1^\dag H_1+ \lambda_7 H_2^\dag H_2\right)\left(H_1^\dag H_2\right)+\mathrm{h.c.}\right]\,.$ All parameters in front of quartic terms and the charged Higgs mass In the same basis, the Yukawa interactions read %$\mathcal{L}''Y&=&\frac{\overline{Q''L}\sqrt{2}}{v}\left[(M_d H_1 + Y_d H_2)d_R+(M_u \tilde{H}''1 + Y''u \tilde{H}''2)u''R\right]\\ & &+\frac{\overline{E_L}\sqrt{2}}{v}\left[(M_e H_1 + Y_e H_2)e_R\right]\,.$% $\mathcal{L}''=Y\frac{\overline{Q''L}\sqrt{2}}{v}\left[(M_d H_1 + Y_d H_2)d_R+(M_u \tilde{H}''1 + Y''u \tilde{H}''2)u''R\right] +\frac{\overline{E_L}\sqrt{2}}{v}\left[(M_e H_1 + Y_e H_2)e_R\right]\,.$ Yukawa couplings are expected to be given in the physical basis for