Results 51 to 60 of about 913,113 (244)

Strange-quark mass effects in the B s meson’s light-cone distribution amplitude

open access: yesJournal of High Energy Physics, 2023
We investigate the differences between the light-cone distribution amplitudes (LCDAs) of B s mesons and B q mesons (with q = u, d) induced by a non-vanishing strange-quark mass m s ≠ 0 (compared to m q ≃ 0).
Thorsten Feldmann   +2 more
doaj   +1 more source

Search for Resonances Decaying to Top and Bottom Quarks with the CDF Experiment. [PDF]

open access: yesPhysical Review Letters, 2015
We report on a search for charged massive resonances decaying to top (t) and bottom (b) quarks in the full data set of proton-antiproton collisions at a center-of-mass energy of √[s]=1.96  TeV collected by the CDF II detector at the Tevatron ...
T. Aaltonen   +403 more
semanticscholar   +1 more source

Search for the standard model Higgs boson produced in association with a W or a Z boson and decaying to bottom quarks [PDF]

open access: yes, 2013
A search for the standard model Higgs boson (H) decaying to bb when produced in association with a weak vector boson (V) is reported for the following channels: W(μν)H, W(eν)H, W(τν)H, Z(μμ)H, Z(ee)H, and Z(νν)H.
Cms Collaboration
semanticscholar   +2 more sources

Study of the b → dℓℓ transitions in the Standard Model and test of New Physics sensitivities

open access: yesJournal of High Energy Physics, 2023
After incorporating all the available experimental data and the most up-to-date Lattice and light cone sum rule (LCSR) inputs on the form factors, we analyze the exclusive b → uℓν ℓ and b → dℓℓ decays simultaneously.
Aritra Biswas   +3 more
doaj   +1 more source

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 bstractA search for charged Higgs boson decaying to a charm and a bottom quark (H+→cb¯$$ {\mathrm{H}}^{+}\to \mathrm{c}\overline{\mathrm{b}} $$) is performed using 19.7 fb−1 of pp collision data at s=8$$ \sqrt{s}=8 $$ TeV.
A. Sirunyan   +499 more
semanticscholar   +1 more source

The forward-backward asymmetry for massive bottom quarks at the Z peak at next-to-next-to-leading order QCD [PDF]

open access: yes, 2016
A bstractWe compute the order αs2 QCD corrections to the b-quark forward-backward asymmetry in e+e−→bb¯$$ {e}^{+}{e}^{-}\to b\overline{b} $$ collisions at the Z boson resonance, taking the non-zero mass of the b quark into account.
W. Bernreuther   +4 more
semanticscholar   +1 more source

New Topflavor Models with Seesaw Mechanism [PDF]

open access: yes, 2000
New class of models are constructed in which the third family quarks, but not leptons, experience a new SU(2) or U(1) gauge force. Anomaly cancellation enforces the introduction of spectator quarks so that the top and bottom masses are naturally ...
B.A. Dobrescu   +16 more
core   +2 more sources

BB interactions with static bottom quarks from Lattice QCD [PDF]

open access: yes, 2015
The isospin, spin and parity dependent potential of a pair of B mesons is computed using Wilson twisted mass lattice QCD with two flavours of degenerate dynamical quarks. The B meson is addressed in the static-light approximation, i.e.
P. Bicudo   +3 more
semanticscholar   +1 more source

Vector-like bottom quarks in composite Higgs models [PDF]

open access: yesJournal of High Energy Physics, 2013
Like many other models, Composite Higgs Models feature the existence of heavy vector-like quarks. Mixing effects between the Standard Model fields and the heavy states, which can be quite large in case of the top quark, imply deviations from the SM.
Marc Gillioz   +3 more
semanticscholar   +1 more source

Complementary constraints on Zb b ¯ $$ Zb\overline{b} $$ couplings at the LHC

open access: yesJournal of High Energy Physics, 2023
We propose a new strategy to probe the Z boson couplings to bottom and charm quarks at the LHC. In this work we mainly focus on the case of bottom quarks. Here, the Z boson is produced in association with two b-jets and decays to electrons or muons.
Fady Bishara, Zhuoni Qian
doaj   +1 more source

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