Results 21 to 30 of about 51,752 (263)

Search for the decay B 0 → ϕμ + μ −

open access: yesJournal of High Energy Physics, 2022
A search for the decay B 0 → ϕμ + μ − is performed using proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV collected by the LHCb experiment and corresponding to an integrated luminosity of 9 fb −1. No evidence for the B 0 → ϕμ + μ −
The LHCb collaboration   +1003 more
doaj   +1 more source

Prefractal as the source of new rational approximations of functions with a fractal representation

open access: yesНаука. Инновации. Технологии, 2022
The Article is devoted to the problem of accelerating the convergence of polynomial and rational approximations of functions. In the theory of approximation of functions often used the idea of reducing the interval change in the argument as a method to ...
Petr Kirillovich Korneev   +4 more
doaj  

FRACTIONAL PROCESSES: FROM POISSON TO BRANCHING ONE [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2008
Fractional generalizations of the Poisson process and branching Furry process are considered. The link between characteristics of the processes, fractional differential equations and Lèvy stable densities are discussed and used for the construction of the Monte Carlo algorithm for simulation of random waiting times in fractional processes.
Vladimir V. Uchaikin   +2 more
openaire   +2 more sources

Study of J/ψ and ψ(3686)→Σ(1385)0Σ¯(1385)0 and Ξ0Ξ¯0

open access: yesPhysics Letters B, 2017
We study the decays of J/ψ and ψ(3686) to the final states Σ(1385)0Σ¯(1385)0 and Ξ0Ξ¯0 based on a single baryon tag method using data samples of (1310.6±7.0)×106 J/ψ and (447.9±2.9)×106 ψ(3686) events collected with the BESIII detector at the BEPCII ...
M. Ablikim   +430 more
doaj   +1 more source

Direct Decay of the Z^0 Boson into Ω_bcc and Ω_bbc Baryons [PDF]

open access: yesفیزیک کاربردی ایران
Electron-positron annihilation experiments are crucial tools for testing the Standard Model due to the simplicity and clarity of the initial state.
tawfigh Osati
doaj   +1 more source

Observation of the semileptonic decay B + → p p ¯ μ + ν μ $$ {B}^{+}\to p\overline{p}{\mu}^{+}{\nu}_{\mu } $$

open access: yesJournal of High Energy Physics, 2020
The Cabibbo-suppressed semileptonic decay B + → p p ¯ μ + ν μ $$ {B}^{+}\to p\overline{p}{\mu}^{+}{\nu}_{\mu } $$ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb −1 at centre-
The LHCb collaboration   +906 more
doaj   +1 more source

Measurements of the leptonic branching fractions of the tau

open access: yesThe European Physical Journal C, 1999
Data collected with the DELPHI detector from 1993 to 1995 combined with previous DELPHI results for data from 1991 and 1992 yield the branching fractions B(τ → evv̄) = (17.877 ± 0.109stat ± 0.110sys)% and B(τ → μvv̄) = (17.325 ± 0.095stat ± 0.077sys)%.
Abreu, P   +218 more
openaire   +5 more sources

Measurement of branching fractions of J/ψ and ψ(3686) decays to Σ+ and Σ ¯ $$ \overline{\Sigma} $$ −

open access: yesJournal of High Energy Physics, 2021
Using 1310.6 × 106 J/ψ and 448.1 × 106 ψ(3686) events collected with the BESIII detector, the branching fractions of J/ψ decays to Σ+ Σ ¯ $$ \overline{\Sigma} $$ − is measured to be (10.61 ± 0.04 ± 0.36) × 10 −4, which is significantly more precise than ...
The BESIII collaboration   +515 more
doaj   +1 more source

Search for the Higgs boson decay to a pair of electrons in proton-proton collisions at s=13TeV

open access: yesPhysics Letters B, 2023
A search is presented for the Higgs boson decay to a pair of electrons (Image 1) in proton-proton collisions at s=13TeV. The data set was collected with the CMS experiment at the LHC between 2016 and 2018, corresponding to an integrated luminosity of ...
A. Tumasyan   +2391 more
doaj   +1 more source

Observation of and evidence for decays

open access: yesNew Journal of Physics, 2014
Measurements of the branching fractions of $B_{s}^{0}\to {{K}^{*\pm }}{{K}^{\mp }}$ and $B_{s}^{0}\to {{K}^{*\pm }}{{\pi }^{\mp }}$ decays are performed using a data sample corresponding to $1.0\ {\rm f}{{{\rm b}}^{-1}}$ of proton-proton collision data ...
The LHCb Collaboration1   +703 more
doaj   +1 more source

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