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Search for charged Higgs bosons decaying into top and bottom quarks at s=13\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{docume [PDF]

open access: yesJournal of High Energy Physics, 2018
A search for charged Higgs bosons heavier than the top quark and decaying via H± → tb is presented. The data analysed corresponds to 36.1 fb−1 of pp collisions at s=13\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage ...
M. Aaboud   +499 more
semanticscholar   +1 more source

2b or not 2b: on the rejection of g → b b ¯ $$ b\overline{b} $$ jets

open access: yesJournal of High Energy Physics, 2023
Motivated by new physics models which lead to final states containing a high multiplicity of bottom and top quarks, we develop a tagging strategy to suppress reducible and non-reducible multi-jet backgrounds. The idea takes advantage of the properties of
Beni Pazar, Enrico Lunghi
doaj   +1 more source

Quark-hadron duality at work: lifetimes of bottom baryons

open access: yesJournal of High Energy Physics, 2023
In the 1990s, very low experimental values for the lifetime ratio τ(Λ b )/τ(B d ) triggered a considerable amount of doubt in the applicability of the heavy quark expansion (HQE), which is based on the assumption of quark-hadron duality (QHD) for ...
James Gratrex   +5 more
doaj   +1 more source

Disintegration of beauty: a precision study

open access: yesJournal of High Energy Physics, 2023
We update the Standard Model (SM) predictions for B-meson lifetimes within the heavy quark expansion (HQE). Including for the first time the contribution of the Darwin operator, SU(3) F breaking corrections to the matrix element of dimension-six four ...
Alexander Lenz   +2 more
doaj   +1 more source

Construction of bbu¯d¯ tetraquark states on lattice with NRQCD bottom and HISQ up and down quarks [PDF]

open access: yes, 2020
We construct $bb\bar{u}\bar{d}$ states on lattice using NRQCD action for bottom and HISQ action for the light up/down quarks. The NRQCD-HISQ tetraquark operators are constructed for "bound" $[bb][\bar{u}\bar{d}]$ and "molecular" $[b\bar{u}] [b\bar{d ...
Protick Mohanta, S. Basak
semanticscholar   +1 more source

The mass spectrum and wave functions of the B c system

open access: yesJournal of High Energy Physics, 2022
The spectrum and relativistic wave functions of B c system are investigated via solving the complete Salpeter equation. Emphases are put on the study of the partial waves of each J P state.
Guo-Li Wang   +3 more
doaj   +1 more source

Beautiful Mirrors and Precision Electroweak Data [PDF]

open access: yes, 2001
The Standard Model (SM) with a light Higgs boson provides a very good description of the precision electroweak observable data coming from the LEP, SLD and Tevatron experiments.
A. Shimonaka   +46 more
core   +2 more sources

Non-factorisable effects in the decays B ¯ s 0 → D s + π − $$ {\overline{B}}_s^0\to {D}_s^{+}{\pi}^{-} $$ and B ¯ 0 → D + K − $$ {\overline{B}}^0\to {D}^{+}{K}^{-} $$ from LCSR

open access: yesJournal of High Energy Physics, 2023
In light of the current discrepancies between the recent predictions based on QCD factorisation (QCDF) and the experimental data for several non-leptonic colour-allowed two-body B-meson decays, we obtain new determinations of the non-factorisable soft ...
Maria Laura Piscopo, Aleksey V. Rusov
doaj   +1 more source

Search for neutral MSSM Higgs bosons decaying into a pair of bottom quarks [PDF]

open access: yesJournal of High Energy Physics, 2015
A search for neutral Higgs bosons decaying into a bb¯\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength ...
V. Khachatryan   +499 more
semanticscholar   +1 more source

Alternative treatment of the quark mass in the heavy quark expansion

open access: yesJournal of High Energy Physics, 2023
The treatment of the quark mass plays an important role when it comes to increasing the precision of the predictions of the heavy quark expansion for inclusive heavy hadron decays.
Anastasia Boushmelev   +2 more
doaj   +1 more source

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