Next-to-leading order corrections to the spin-dependent energy spectrum of hadrons from polarized top quark decay in the general two Higgs doublet model

2016/10/31 by S. Mohammad Moosavi Nejad, S. Abbaspour
Physics and Astronomy · #Boson #Hadron #Higgs boson #High-Energy Particle Collisions Research #Large Hadron Collider #Massless particle #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quark #Top quark #hep-ph

paper · pdf · doi:10.1016/j.nuclphysb.2017.05.009

published as Nuclear Physics B921 (2017) 86-103 · 10 pages, 6 figures. arXiv admin note: text overlap with arXiv:1611.08017

openalex created_date 2016/12/08 · arxiv created 2016/12/13 · openalex publication_date 2017/05/24 · arxiv updated 2017/06/01 · openalex updated_date 2026/08/05

Abstract

In recent years, searches for the light and heavy charged Higgs bosons have been done by the ATLAS and the CMS collaborations at the Large Hadron Collider (LHC) in proton–proton collision. Nevertheless, a definitive search is a program that still has to be carried out at the LHC. The experimental observation of charged Higgs bosons would indicate physics beyond the Standard Model. In the present work, we study the scaled-energy distribution of bottom-flavored mesons (B) inclusively produced in polarized top quark decays into a light charged Higgs boson and a massless bottom quark at next-to-leading order in the two-Higgs-doublet model; t(↑)→bH+→BH++X. This spin-dependent energy distribution is studied in a specific helicity coordinate system where the polarization vector of the top quark is measured with respect to the direction of the Higgs momentum. The study of these energy distributions could be considered as a new channel to search for the charged Higgs bosons at the LHC. For our numerical analysis and phenomenological predictions, we restrict ourselves to the unexcluded regions of the MSSM mH+−tan⁡β parameter space determined by the recent results of the CMS [13] and ATLAS [14] collaborations.

Citations

• QCD analysis of light charged Higgs production through polarized top quark decay in two various frames
• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Asymptotic freedom in parton language
• QCD corrections to the charged-Higgs-boson decay of a heavy top quark
• Bottom-quark fragmentation in top-quark decay
• Large-p⊥ hadroproduction of heavy quarks
• Study of the fragmentation of b quarks into B mesons at the Z peak
• Search for charged Higgs bosons at LEP in general two Higgs doublet models
• Review of Particle Physics
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC