Results 31 to 40 of about 81,110 (210)

Search for a charged Higgs boson decaying to charm and bottom quarks in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV

open access: yesJournal of High Energy Physics, 2018
A search for charged Higgs boson decaying to a charm and a bottom quark ( H + → c b ¯ $$ {\mathrm{H}}^{+}\to \mathrm{c}\overline{\mathrm{b}} $$ ) is performed using 19.7 fb−1 of pp collision data at s = 8 $$ \sqrt{s}=8 $$ TeV.
The CMS collaboration   +2304 more
doaj   +1 more source

Search for a charged Higgs boson decaying into top and bottom quarks in events with electrons or muons in proton-proton collisions at s $$ \sqrt{\mathrm{s}} $$ = 13 TeV

open access: yesJournal of High Energy Physics, 2020
A search is presented for a charged Higgs boson heavier than the top quark, produced in association with a top quark, or with a top and a bottom quark, and decaying into a top-bottom quark-antiquark pair.
The CMS collaboration   +2338 more
doaj   +1 more source

Bottom Quark Fragmentation in Top Quark Decay

open access: yes, 2001
We study the fragmentation of the b quark in top decay in NLO QCD, within the framework of perturbative fragmentation, which allows one to resum large logarithms $\sim\log (m_t^2/m_b^2)$. We show the b-energy distribution, which we compare with the exact
A.D. Mitov   +50 more
core   +2 more sources

Electroweak and finite width corrections to top quark decays into transverse and longitudinal $ W $-bosons [PDF]

open access: yes, 2002
We calculate the electroweak and finite width corrections to the decay of an unpolarized top quark into a bottom quark and a $ W $-gauge boson where the helicities of the $ W $ are specified as longitudinal, transverse-plus and transverse-minus. Together
A. Barroso   +22 more
core   +2 more sources

Beta decays of heavy baryons [PDF]

open access: yesEPJ Web of Conferences
Beta decay processes of heavy baryons with a single heavy quark, charm or bottom, are analyzed in the quark model.
Márquez Hugo Antonio García   +1 more
doaj   +1 more source

Do electroweak precision data and Higgs-mass constraints rule out a scalar bottom quark with mass of O(5 GeV)? [PDF]

open access: yes, 2000
We investigate the phenomenological implications of a light scalar bottom quark, with a mass of about the bottom quark mass, within the minimal supersymmetric standard model.
A. Djouadi   +24 more
core   +2 more sources

Bottom-quark effects in Higgs production at intermediate transverse momentum

open access: yesJournal of High Energy Physics, 2018
We provide a precise description of the Higgs boson transverse momentum distribution including top and bottom quark contributions, that is valid for transverse momenta in the range m b  ≲ p ⊥ ≲ m t , where m b and m t are the bottom and top quark masses.
Fabrizio Caola   +5 more
doaj   +1 more source

Associated Production of a Top Quark and a Charged Higgs Boson [PDF]

open access: yes, 2005
We compute the inclusive and differential cross sections for the associated production of a top quark along with a charged Higgs boson at hadron colliders to next-to-leading order (NLO) in perturbative quantum chromodynamics (QCD) and in supersymmetric ...
B. C. Allanach   +11 more
core   +2 more sources

Analytic decay width of the Higgs boson to massive bottom quarks at next-to-next-to-leading order in QCD

open access: yesJournal of High Energy Physics
The Higgs boson decay to a massive bottom quark pair provides the dominant contribution to the Higgs boson width. We present an exact result for such a decay induced by the bottom quark Yukawa coupling with next-to-next-to-leading order (NNLO) QCD ...
Jian Wang, Yefan Wang, Da-Jiang Zhang
doaj   +1 more source

S-wave bottom tetraquarks

open access: yes, 2009
The relativistic four-quark equations are found in the framework of coupled-channel formalism. The dynamical mixing of the meson-meson states with the four-quark states is considered.
Adachi I.   +5 more
core   +1 more source

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