Results 51 to 60 of about 226,926 (195)

Understanding B Meson Branching Fractions [PDF]

open access: yesAIP Conference Proceedings, 2002
This is a discussion of the main branching fractions of B Meson decays (b → cW−). What has been measured and what remains unmeasured is summarized, and a plan to measure charged track multiplicity accompanying the D(*) meson in B decay is presented.
openaire   +1 more source

Amplitude analysis and branching-fraction measurement of D s + $$ {\mathrm{D}}_{\mathrm{s}}^{+} $$ → π + π 0 η′

open access: yesJournal of High Energy Physics, 2022
Using data collected with the BESIII detector in e + e − collisions at center-of-mass energies between 4.178 and 4.226 GeV and corresponding to 6.32 fb −1 of integrated luminosity, we report the amplitude analysis and branching-fraction measurement of ...
The BESIII collaboration   +518 more
doaj   +1 more source

Study of Exclusive B decays to Charmed Baryons

open access: yes, 2002
Using 29.1fb-1 of data accumulated at the Upsilon(4S) with the Belle detector at KEKB, we have studied the decay modes B0bar->Lambda_c+ pbar pi+pi-, B- -> Lambda_c+ pbar pi-, and B0bar ->Lambda_c+ pbar. We report branching fractions of exclusive B decays
Abe, K.   +187 more
core   +1 more source

Precision measurements with kaon and pion decays at CERN [PDF]

open access: yesEPJ Web of Conferences
The NA62 measurement of the branching ratio and the di-photon mass spectrum of the K+ → π+γγ decay is presented, together with a preliminary result on the branching fraction of the rare decay π0 → e+e−.
Bizzeti Andrea
doaj   +1 more source

Observation of B^0 Meson Decay to a_1^±(1260)π^∓ [PDF]

open access: yes, 2006
We present a measurement of the branching fraction of the decay B^0→a_1^±(1260)π^∓ with a_1^±(1260)→π^∓π^±π^±. The data sample corresponds to 218×10^6 BB pairs produced in e^+e^- annihilation through the Υ(4S) resonance. We measure the branching fraction
Albert, J.   +9 more
core  

Measurement of tau lepton branching fractions [PDF]

open access: yes, 1993
We present {tau}{sup {minus}} lepton branching fraction measurements based on data from the TPC/Two-Gamma detector at PEP. Using a sample of{tau}{sup {minus}} {yields} {nu}{sub {tau}}K{sup {minus}}{pi}{sup +}{pi}{sup {minus}} events, we examine the resonance structure of the K{sup {minus}}{pi}{sup +}{pi}{sup {minus}} system and obtain the first ...
openaire   +2 more sources

Branching fractions in singly ionized tungsten [PDF]

open access: yesJournal of Physics B: Atomic, Molecular and Optical Physics, 2011
The intensity-calibrated spectra of W II have been recorded in the spectral interval 23 000-51 300 cm(-1) (1950-4350 angstrom), using the FT500 UV Fourier Transform Spectrometer at Lund Observatory. Combining the intensity data in this work with lifetimes previously measured using the time-resolved laser-induced-fluorescence (TR-LIF) technique resulted
Lennartsson, Thomas   +4 more
openaire   +3 more sources

Improved measurement of the branching fraction of h c → γη′/η and search for h c → γπ 0

open access: yesJournal of High Energy Physics
The processes h c → γP (P = η′, η, π 0) are studied with a sample of (27.12 ± 0.14) × 108 ψ(3686) events collected by the BESIII detector at the BEPCII collider.
The BESIII collaboration   +669 more
doaj   +1 more source

Amplitude analysis and branching fraction measurement of the decay D s + $$ {D}_s^{+} $$ → π + π 0 π 0

open access: yesJournal of High Energy Physics, 2022
Using a data set corresponding to an integrated luminosity of 6.32 fb −1 recorded by the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV, an amplitude analysis of the decay D s + $$ {D}_s^{+} $$ → π + π 0 π 0 is performed, and the ...
The BESIII collaboration   +512 more
doaj   +1 more source

Measurement of the tau lepton electronic branching fraction

open access: yesPhysical Review Letters, 1992
The tau lepton electron branching fraction has been measured with the CLEO II detector at the Cornell Electron Storage Ring as [ital B][sub [ital e]]=0.1749[plus minus]0.0014[plus minus]0.0022, with the first error statistical and the second systematic.
D. S. Akerib   +169 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy