Probing the charged Higgs boson at the LHC in the CP-violating type-II 2HDM

Abstract

We present a phenomenological study of a CP-violating two-Higgs-doublet Model with type-II Yukawa couplings at the Large Hadron Collider (LHC). In the light of recent LHC data, we focus on the parameter space that survives the current and past experimental constraints as well as theoretical bounds on the model. Once the phenomenological scenario is set, we analyse the scope of the LHC in exploring this model through the discovery of a charged Higgs boson produced in association with a W boson, with the former decaying into the lightest neutral Higgs and a second W state, altogether yielding a bbW + W − signature, of which we exploit the W + W − semileptonic decays.

CP violating Two-Higgs-Doublet Model: constraints and LHC predictions

“…Recently, in [13][14][15][16] model-independent approaches to CPV 2HDMs have been presented using the CP-odd weak-basis invariants. Charged Higgs phenomenology in CPV 2HDMs has been considered in [17,[19][20][21][22][23]. Surviving regions of the parameter space passing all experimental constraints in CPV 2HDMs have been studied in [24][25][26][27][28] and in [29] with a focus on EW Baryogenesis.…”

Two Higgs doublet models for the LHC Higgs boson data at s $$ \sqrt{s} $$ = 7 and 8 TeV

“…According to the assignment of charges for quarks and leptons under the Z 2 symmetry, there are four types of 2HDM: Type I, Type II, Type X, and Type Y [31][32][33][34][35][36][37][38][39][40][41]. In the literature, there are many studies about the implication of the LHC Higgs data on 2HDM [42][43][44][45][46][47][48][49][50][51][52][53][54][55][56]. Focused on Type II [57,58], or Type I and II [11], the allowed parameter space has been obtained with electroweak precision constraints and flavor bounds.…”

Impact of a four-zero Yukawa texture on h → γγ and γZ in the framework of the Two Higgs Doublet Model Type III

“…In fact, following the initial discovery announcement on 4 th July 2012, there has been much speculation about the excess of events in the decay channel h → γγ initially suggested by both ATLAS and CMS [7,8], though more recently CMS (but not ATLAS) have claimed an opposite effect [14,15]. This potential excess could be explained by the existence of additional charged particles running in the loops of the radiative Higgs coupling to photons, how it happens in some extended Higgs sectors [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. Conversely, if this enhancement in h → γγ disappears, it will still constrain the parameter space of various extensions of the SM.…”