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Symmetry, Collider Phenomenology and High Energy Physics

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Prof. Dr. Kamal Benslama

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Guest Editor

Experimental Particle Physics Group, Drew University, Madison, NJ, USA
Interests: high energy physics; machine learning; electronics; simulation; grid computing; teaching; pedagogy; quantum machine learning
Special Issues, Collections and Topics in MDPI journals

Prof. Dr. Ketevi Assamagan

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Physicist, Brookhaven National Laboratory, Upton, NY 11973, USA
Interests: the searches for physics beyond the Standard Model of particle physics

Special Issue Information

Dear Colleagues,

Recent experimental results, particularly those of the LHC, have completely transformed the status of particle physics and form the basis of future research directions. Believing that the Higgs boson discovery has completed our understanding of particle physics is too simplistic. On the contrary, much remains to be understood. In fact, a new era, in which we have direct experimental information regarding the physics behind the breaking of electroweak (EW) symmetry, recently begun. This breaking plays a fundamental role in our understanding of particle physics and sits at the high-energy frontier, beyond which we expect to explore uncharted territories that raise deep conceptual concerns theoretically.

Prof. Dr. Kamal Benslama
Prof. Dr. Ketevi Assamagan
Guest Editors

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Research

6 pages, 683 KiB

Open AccessEditor’s ChoiceArticle

New Light H^± Discovery Channels at the LHC

by Abdesslam Arhrib, Rachid Benbrik, Mohamed Krab, Bouzid Manaut, Stefano Moretti, Yan Wang and Qi-Shu Yan

Symmetry 2021, 13(12), 2319; https://doi.org/10.3390/sym13122319 - 4 Dec 2021

Cited by 11 | Viewed by 2173

Abstract

A light charged Higgs boson has been searched for at the Large Hadron Collider (LHC) via top (anti)quark decay, i.e.,

t \to b H^{+}

, if kinematically allowed. In this contribution, we propose new channels for light charged Higgs boson searches via [...] Read more.

A light charged Higgs boson has been searched for at the Large Hadron Collider (LHC) via top (anti)quark decay, i.e.,

t \to b H^{+}

, if kinematically allowed. In this contribution, we propose new channels for light charged Higgs boson searches via the pair productions

p p \to H^{\pm} h / A

and

p p \to 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^{\pm} \to W^{\pm} h

and/or

H^{\pm} \to W^{\pm} A

. We demonstrate that such production and decay channels can yield substantial alternative discovery channels for

H^{\pm}

bosons at the LHC. Finally, we propose eight benchmark points (BPs) to motivate the search for such signatures. Full article

(This article belongs to the Special Issue Symmetry, Collider Phenomenology and High Energy Physics)

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41 pages, 581 KiB

Open AccessArticle

Using C++ to Calculate SO(10) Tensor Couplings

by Azadan Bhagwagar and Raza M. Syed

Symmetry 2021, 13(10), 1871; https://doi.org/10.3390/sym13101871 - 4 Oct 2021

Viewed by 2083

Abstract

Model building in

SO (10)

Model building in

SO (10)

, which is the leading grand unification framework, often involves large Higgs representations and their couplings. Explicit calculations of such couplings is a multi-step process that involves laborious calculations that are time consuming and error prone, an issue which only grows as the complexity of the coupling increases. Therefore, there exists an opportunity to leverage the abilities of computer software in order to algorithmically perform these calculations on demand. This paper outlines the details of such software, implemented in C++ using in-built libraries. The software is capable of accepting invariant couplings involving an arbitrary number of

SO (10)

Higgs tensors, each having up to five indices. The output is then produced in LaTeX, so that it is universally readable and sufficiently expressive. Through the use of this software,

SO (10)

coupling analysis can be performed in a way that minimizes calculation time, eliminates errors, and allows for experimentation with couplings that have not been computed before in the literature. Furthermore, this software can be expanded in the future to account for similar Higgs–Spinor coupling analysis, or extended to include further

SO (N)

invariant couplings. Full article

(This article belongs to the Special Issue Symmetry, Collider Phenomenology and High Energy Physics)

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