Conveners
Parallel Session IV, Collider
- Rachid Benbrik (Cadi Ayyad University, Marrakech)
- Shoaib Munir (East African institute for Fundamental Research (EAIFR, Kigali))
In this work, we investigate the production of charged Higgs boson via $pp \to H^\pm h$ at the LHC in the Two-Higgs Doublet Model (2HDM) Type-I. By focusing on the case where $H$ is identified as the observed Higgs boson of mass 125 GeV, we study the aforementioned Higgs boson production channel and explore their bosonic decays, namely $H^\pm \to W^\pm h$ and $H^\pm \to W^\pm A$, which can...
The ATLAS and CMS experiments have an ambitious search program for charged Higgs bosons. The two main searches for $H^\pm$ at the LHC have traditionally been performed in the $\tau \nu$ and $t b$ decay channels, as they provide the opportunity to probe complementary regions of the Minimal SuperSymmetric Model (MSSM) parameter space. Charged Higgs bosons may decay also to light quarks, $H^\pm...
We present the cross section of the Higgs strahlung, $e^+ e^- \to h Z^0 $, at the full next-leading order in the Inert Higgs Doublet Model (IHDM) at the future Higgs factories We systematically calculated both weak and QED corrections by using FeynArts/FormCalc to compute both the weak and the one-loop virtual corrections and Feynman Diagram Calculation (FDC) to evaluate the real photon...
Addressing the question of the small neutrino masses in the LRSM. The results is very appealing as the LRSM leads to the celebrated seesaw mechanism, which ensures the small neutrino masses.\
In addition the LRSM may have new particles at TeV scale giving a dominant contribution to $0\nu 2\beta \beta$ decay, that can be reached by the future ton-scale experiments.
We propose a a highly predictive 4D SU(5) GUT with a $D_{4}$ flavor symmetry to study fermion masses and mixings. The Yukawa matrices of quarks and charged leptons are obtained after integrating out heavy messenger fields from renormalizable superpotentials while neutrino masses are originated from the type I seesaw mechanism. The group theoretical factors from 24- and 45-dimensional Higgs...
The four dimensional Chern Simons topological gauge theory represents a rich framework allowing to study two-dimensional integrable systems using line and surface defects and Feynman diagrams computations. Relying on this "Gauge/Bethe ansatz" correspondence, one can recover interesting results of the integrable models and generate new ones without reference to the traditional algebraic...
Scattering amplitudes connect theoretical descriptions to experimental predictions. Low energy terms of the scattering amplitude tend to factorize from the high energy. Different methods have already been established to understand the mechanism of such factorization, Weinberg’s theorem. With regard to the Weinberg soft factor, calculations have already shown that this factor has a universal...
Motivated by the multi-lepton anomalies, a search for narrow resonances with $S\rightarrow\gamma\gamma, Z\gamma$ in association with light jets, $b$-jets or missing transverse energy was reported in the paper arXiv:2109.02650. The maximum local (global) significance is achieved for $m_S=151.5$\,GeV with 5.1$\sigma$ (4.8$\sigma$). In this paper we compute the production cross-section of this...
The Standard Model (SM) of particle physics is complete after the discovery of a Higgs-like boson at the Large Hadron Collider (LHC) by ATLAS and CMS collaboration. Although the measured properties of it is compatible with the one predicted by the SM, this does not exclude the possible existence of additional scalar bosons as long as the mixing with the SM higgs is small. In fact, in recent...
With the goal of increasing the precision of NLO QCD predictions for the $pp\rightarrow t\overline{t}\gamma$ process in the di-lepton top quark decay channel we present a study of the ratio of top quarks together with a photon to the top quark pair. Fully realistic LO and NLO computations for $t\overline{t}\gamma$ and $t\overline{t}$ production are employed. Events with exactly one electron...
We discuss varied jet taggers that identify boosted hadronic top quark jets.
These tagging approaches mainly uses jet algorithms to reconstruct the kinematics
of fat jets (i.e. jets that includes heavy particles), by analyzing their subjet
constituents. We also review the currently available experimental results as well
as the crucial QCD aspects with reliable theoretical and algorithmic...
In this work, we investigate the production of charged Higgs bosons via $pp \to H^\pm W^\mp$ at the LHC in the 2HDM Type-I. By focusing on the case where $h$ or $H$ is identified as the observed Higgs boson of mass $125$ GeV, we study the aforementioned Higgs boson production channel and explore their bosonic decays, namely $H^\pm \to W^\pm h$ and/or $H^\pm \to W^\pm A$. Our study in this...
