WebNov 6, 2024 · The neutrino energy is irrelevant, both for the discovery paper and for the most precise modern mass measurements. The decay products are just detected to … WebMar 15, 2024 · The new most precise measurement ever of the tau lepton mass is almost three times closer to the original Koide's rule prediction than the old world average. To …
$\tau$ lepton mass measurement at Belle II - NASA/ADS
WebSep 1, 2008 · The status of the experiment on the precise τ lepton mass measurement running at the VEPP-4M collider with the KEDR detector is reported. The mass value is evaluated from the τ + τ − cross section behavior around the production threshold. The preliminary result based on 15.2 pb −1 of data is m τ = 1776.69 −0.19 +0.17 ± 0.15 MeV. WebWe measure the branching fraction of the radiative decay J/psi -> eta_c gamma, eta_c width and mass. Taking into account an asymmetric photon line shape we obtain: M (eta_c) = (2978.1 +- 1.4 +- 2.0) MeV/c^2, Gamma (eta_c) = (43.5 +- 5.4 +- 15.8) MeV, B (J/psi->eta_c gamma) = (2.59 +- 0.16 +- 0.31)%$. Download Free PDF View PDF diabetes en atherosclerose
\tau$ lepton mass measurement at Belle II - ResearchGate
WebDec 25, 2024 · $τ$ lepton mass measurement at BESIII J.Y. Zhang (on behalf of BESIII collaboration) In order to obtain the mass of $\tau$ lepton at BESIII precisely, a beam energy measurement system was built at BEPCII. A scenario for high precision $\tau$ mass measurement was put forth before data taken. WebTorque (τ \tau τ tau) Measure of the twisting action caused by a force that can cause an object to rotate about an axis. Vector quantity with SI units of N ⋅ m \text N \cdot \text m N ⋅ m start text, N, end text, dot, start text, m, end text. Net torque (Σ τ \Sigma \tau Σ τ \Sigma, tau) Sum of all the torques on a system: Balanced system WebMay 1, 1993 · Title: Measurement of the [tau]-lepton mass Full Record Other RelatedResearch Abstract Using data from the CLEO II detector at CESR, we measure the [tau]-lepton mass by exploiting the unique kinematics of events in which both [tau]'s decay hadronically. The result is [ital m][sub [tau]]=1777.8[plus minus]0.7[plus minus]1.7 … cinders mod estus shard locations