scholarly journals New Light H± Discovery Channels at the LHC

Symmetry ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2319
Author(s):  
Abdesslam Arhrib ◽  
Rachid Benbrik ◽  
Mohamed Krab ◽  
Bouzid Manaut ◽  
Stefano Moretti ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Hadron Collider ◽  
Higgs Doublet ◽  
Charged Higgs Boson ◽  
Type I ◽  
Decay Channels ◽  
Charged Higgs ◽  
Doublet Model ◽  
Quark Decay ◽  
Two Higgs Doublet Model

A light charged Higgs boson has been searched for at the Large Hadron Collider (LHC) via top (anti)quark decay, i.e., t→bH+, if kinematically allowed. In this contribution, we propose new channels for light charged Higgs boson searches via the pair productions pp→H±h/A and pp→H+H− at the LHC in the context of the Two-Higgs Doublet Model (2HDM) Type-I. By focusing on a case where the heavy H state is the Standard Model (SM)-like one already observed, we investigate the production of the aforementioned charged Higgs bosons and their bosonic decay channels, namely, H±→W±h and/or H±→W±A. We demonstrate that such production and decay channels can yield substantial alternative discovery channels for H± bosons at the LHC. Finally, we propose eight benchmark points (BPs) to motivate the search for such signatures.

scholarly journals Analysis of W± + 4γ in the 2HDM Type-I at the LHC

2021 ◽  
Vol 2021 (12) ◽  
Author(s):  
Yan Wang ◽  
A. Arhrib ◽  
R. Benbrik ◽  
M. Krab ◽  
B. Manaut ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Parameter Space ◽  
Hadron Collider ◽  
Higgs Doublet ◽  
Charged Higgs Boson ◽  
Type I ◽  
Decay Modes ◽  
The Standard Model ◽  
Charged Higgs ◽  
Doublet Model

Abstract We analyse a light charged Higgs boson in the 2-Higgs Doublet Model (2HDM) Type-I, when its mass satisfies the condition MH±< Mt + Mb and the parameter space is consistent with theoretical requirements of self-consistency as well as the latest experimental constraints from Large Hadron Collider (LHC) and other data. Over such a parameter space, wherein the Standard Model (SM)-like state discovered at the LHC in 2012 is the heaviest CP-even state of the 2HDM, it is found that the decay modes of the charged Higgs boson are dominated by H±→ W±(∗)h. Furthermore, the light neutral Higgs boson h dominantly decays into two photons. Under these conditions, we find that the production and decay process pp → H±h → W±(∗)hh → ℓνℓ + 4γ (ℓ = e, μ) is essentially background free. However, since the W±(∗) could be largely off-shell and the h state is very light, so that both the lepton coming from the former and the photons coming from the latter could be rather soft, we perform here a full Monte Carlo (MC) analysis at the detector level demonstrating that such a W± + 4γ signal is very promising, as it would be yielding significant excesses at the LHC with an integrated luminosity of L = 300 fb−1 at both $$ \sqrt{s} $$ s = 13 and 14 TeV.

scholarly journals CONSTRAINTS ON THE CHARGED HIGGS BOSON OF THE TWO-HIGGS DOUBLET MODEL TYPE III

2011 ◽  
Vol 26 (25) ◽  
pp. 1869-1879 ◽  
Author(s):  
H. CARDENAS ◽  
J. DUARTE ◽  
J. ALEXIS RODRIGUEZ
Keyword(s):  
Higgs Boson ◽  
Top Quark ◽  
Higgs Mass ◽  
Higgs Doublet ◽  
Charged Higgs Boson ◽  
Top Quark Mass ◽  
Type Iii ◽  
Charged Higgs ◽  
Doublet Model ◽  
Two Higgs Doublet Model

The D0 experiment has reported a direct search for a charged Higgs boson produced by [Formula: see text] annihilation and decaying to [Formula: see text] final state, in the 180≤MH+≤300 GeV mass range. The analysis has led to upper limits on the production cross-section in the framework of the two-Higgs doublet model types I, II and III. We compare the predictions of two different scenarios in the framework of the two-Higgs doublet type III to the cross-section limits reported by D0 collaboration, and we obtain constraints on the charged Higgs mass, for the case when the charged Higgs mass is bigger than the top quark mass. Also, searches for the charged Higgs boson with a mass smaller than top quark mass are considered, we discuss the possible limits on the charged Higgs boson mass obtained from measurements of the ratio [Formula: see text] within the two-Higgs doublet model type III.

scholarly journals Yukawa textures and charged Higgs boson phenomenology in the type-III two-Higgs-doublet model

2009 ◽  
Vol 79 (9) ◽  
Author(s):  
J. L. Díaz-Cruz ◽  
J. Hernández-Sánchez ◽  
S. Moretti ◽  
R. Noriega-Papaqui ◽  
A. Rosado
Keyword(s):  
Higgs Boson ◽  
Higgs Doublet ◽  
Charged Higgs Boson ◽  
Type Iii ◽  
Charged Higgs ◽  
Doublet Model ◽  
Two Higgs Doublet Model

scholarly journals Light charged Higgs boson in two-Higgs doublet model for CDFWjjanomaly

2012 ◽  
Vol 85 (7) ◽  
Author(s):  
Chuan-Hung Chen ◽  
Cheng-Wei Chiang ◽  
Takaaki Nomura ◽  
Fu-Sheng Yu
Keyword(s):  
Higgs Boson ◽  
Higgs Doublet ◽  
Charged Higgs Boson ◽  
Charged Higgs ◽  
Doublet Model ◽  
Two Higgs Doublet Model

scholarly journals New discovery modes for a light charged Higgs boson at the LHC

2021 ◽  
Vol 2021 (10) ◽  
Author(s):  
A. Arhrib ◽  
R. Benbrik ◽  
M. Krab ◽  
B. Manaut ◽  
S. Moretti ◽  
...  
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Hadron Collider ◽  
Higgs Doublet ◽  
Charged Higgs Boson ◽  
Higgs Bosons ◽  
Type I ◽  
New Production ◽  
Charged Higgs ◽  
Charged Higgs Bosons

Abstract At the Large Hadron Collider (LHC), both the ATLAS and CMS Collaborations have been searching for light charged Higgs bosons via top (anti)quark production and decays channels, like pp → t$$ \overline{t} $$ t ¯ with one top (anti)quark decaying into a charged Higgs boson and a b (anti)quark, when the decay is kinematically open (i.e., when $$ {m}_{H^{\pm }} $$ m H ± ≲ mt). In this paper, we propose new searches at the LHC involving light charged Higgs bosons via their pair production channels like pp → H±h/A and pp → H+H− in the 2-Higgs Doublet Model (2HDM) Type-I and -X scenarios. By focusing on the case where the heavy H state plays the role of the Standard Model (SM)-like Higgs boson with a mass near 125 GeV, we study the aforementioned Higgs boson pair production channels and investigate their bosonic decays, such as H± → W±h and/or H± → W±A. We demonstrate that for a light charged Higgs boson state, with $$ {m}_{H^{\pm }} $$ m H ± ≲ mt, at the LHC, such di-Higgs production and decay channels can give rise to signatures with event rates much larger than those emerging from pp → t$$ \overline{t} $$ t ¯ → t$$ \overline{b} $$ b ¯ H− + c.c. We specifically study h/A → b$$ \overline{b} $$ b ¯ and τ+τ− decays. We, therefore, claim that the discussed combination of new production and decay modes can result in an alternative discovery channel for charged Higgs bosons lighter than the top (anti)quark at the LHC within the above two 2HDM Types. Finally, in order to motivate experimentalists in ATLAS and CMS to search for such signatures, we propose 16 Benchmark Points (BPs) which are compatible with both theoretical and experimental constraints.

scholarly journals Effect of the charged Higgs bosons in the radiative leptonic decays of B− and D− mesons

2016 ◽  
Vol 31 (03) ◽  
pp. 1650012 ◽  
Author(s):  
Ji-Chong Yang ◽  
Mao-Zhi Yang
Keyword(s):  
Higgs Boson ◽  
Decay Mode ◽  
D Mesons ◽  
Higgs Doublet ◽  
Charged Higgs Boson ◽  
Leptonic Decays ◽  
Charged Higgs ◽  
Doublet Model ◽  
Relativistic Potential ◽  
Two Higgs Doublet Model

In this work, we study the radiative leptonic decays of [Formula: see text] and [Formula: see text] mesons in the Standard Model (SM) and two-Higgs-doublet-model (2HDM) Type II. The results are obtained using the factorization procedure, and the contribution of the order [Formula: see text] is included. The numerical results are calculated using the wave function obtained in relativistic potential model. As a result, the decay mode [Formula: see text] is found to be sensitive to the effect of the charged Higgs boson. Using the constraint on the free parameters of 2HDM given in previous works, we find the contribution of the charged Higgs boson in the decay mode [Formula: see text] can be as large as about 13%.

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