Results 21 to 30 of about 226,926 (195)

Latest Belle results on Tau decays

open access: yesSciPost Physics Proceedings, 2019
We present preliminary results of a latest measurement at Belle, the branching fraction of rare tau decay, $\tau^- \rightarrow \pi^- \nu_{\tau} \ell^+ \ell^-$ ($\ell = e$ or $\mu$), using a 562 $\rm fb^{-1}$\ data set.
Yifan Jin, Denis Epifanov, Hiroaki Aihara
doaj   +1 more source

Measurement of branching fractions in τ decays [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2003
Invited Talk at Tau02 International Workshop, Sept.
Davier, Michel, Yuan, Changzheng
openaire   +2 more sources

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

Measurement of B→Ds(*)+D*(*) branching fractions [PDF]

open access: yesPhysical Review D, 2000
This article describes improved measurements by CLEO of the $B^0 \to D_s^+ D^{*-}$ and $B^0 \to D_s^{*+} D^{*-}$ branching fractions, and first evidence for the decay $B^+ \to D_s^{(*)+} \bar{D}^{**0}$, where $\bar{D}^{**0}$ represents the sum of the $\bar{D}_1(2420)^0$, $\bar{D}_2^*(2460)^0$, and $\bar{D}_1(j=1/2)^0$ L=1 charm meson states.
S. Ahmed   +192 more
openaire   +2 more sources

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.
Uchaikin, V. V.   +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

Observation of $\eta^{\prime}\to\omega e^{+} e^{-}$ [PDF]

open access: yes, 2015
Based on a sample of \etapr mesons produced in the radiative decay $J/\psi\to\gamma\eta^{\prime}$ in $1.31\times 10^9$ $J/\psi$ events collected with the BESIII detector, the decay $\eta^{\prime}\to\omega e^{+} e^{-}$ is observed for the first time, with
Ablikim, M.   +406 more
core   +2 more sources

Measurement of the absolute branching fraction of Λc+→pKS0η decays

open access: yesPhysics Letters B, 2021
Based on 586 pb−1 of e+e− annihilation data collected at a center-of-mass energy of s=4.6GeV with the BESIII detector at the BEPCII collider, the absolute branching fraction of Λc+→pKS0η decays is measured for the first time to be B(Λc+→pKS0η)=(0.414±0 ...
M. Ablikim   +497 more
doaj   +1 more source

Observation of Ds+ K- and evidence for Ds+ pi- final states in neutral B decays [PDF]

open access: yes, 2002
We report the first observation of a B meson decay that is not accessible by a direct spectator process. The channel B0bar -> Ds+ K- is found in a sample of 85 timse 10^6 B Bbar events, collected with the Belle detector at KEKB, with a branching fraction
A. Bay   +207 more
core   +1 more source

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