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Constraining Type II 2HDM in Light of LHC Higgs Searches | | Baradhwaj Coleppa
; Felix Kling
; Shufang Su
; | | Date: |
30 Apr 2013 | | Abstract: | We study the implication of the LHC Higgs search results on the Type II Two
Higgs-Doublet Model. In particular, we explore the scenarios in which the
observed 126 GeV Higgs signal is interpreted as either the light CP-even Higgs
h^0 or the heavy CP-even Higgs H^0. Imposing both theoretical and experimental
constraints, we analyze the surviving parameter regions in m_H (m_h), m_A,
m_{H^pm}, taneta and sin(eta-alpha). We further identify the regions
that could accommodate a 126 GeV Higgs with cross sections consistent with the
observed Higgs signal. We find that in the h-126 case, we are restricted to
narrow regions of sin(eta-alpha) pm 1 with taneta up to 4, or extended
regions in sin(eta-alpha) with taneta<1. The values of m_H, m_A and
m_{H^pm}, however, are relatively unconstrained. In the H-126 case, we are
restricted to a narrow region of sin(eta-alpha)~0 with taneta up to about
7, or an extended region of sin(eta-alpha) between -0.6 to -0.1, with
taneta extended to 30 or higher. m_A and m_{H^pm} are nearly degenerate due
to Delta
ho constraints. Imposing flavor constraints shrinks the surviving
parameter space significantly. We also investigate the correlation between
gammagamma, VV and bb/ au au channels. gammagamma and VV channels are
most likely to be highly correlated with gammagamma:VV~1 for the normalized
cross sections. | | Source: | arXiv, 1305.0002 | | Services: | Forum | Review | PDF | Favorites | |
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