Results 11 to 20 of about 226,926 (195)

Measurement of the branching fraction for ψ(3770)→γχc0

open access: yesPhysics Letters B, 2016
By analyzing a data set of 2.92 fb−1 of e+e− collision data taken at s=3.773 GeV and 106.41×106 ψ(3686) decays taken at s=3.686 GeV with the BESIII detector at the BEPCII collider, we measure the branching fraction and the partial decay width for ψ(3770)→
M. Ablikim   +412 more
doaj   +8 more sources

A measurement of the τ leptonic branching fractions [PDF]

open access: yesPhysics Letters B, 1995
A sample of 25000 \Z\rightarrow\tt events collected by the DELPHI experiment at LEP in 1991 and 1992 is used to measure the leptonic branching fractions of the \tau lepton. The results are B(\TEL) = (17.51 \pm 0.39)\% and B(\tau\rightarrow \mu\nu\bar{\nu}) = (17.02 \pm 0.31)\%. The ratio of the muon and electron couplings to the weak charged current is
ABREU, P   +245 more
openaire   +10 more sources

Multitype linear fractional branching processes [PDF]

open access: yesJournal of Applied Probability, 2006
We complete a paper written by Edward Pollak in 1974 on a multitype branching process the generating functions of whose birth law are fractional linear functions with the same denominator. The main tool is a parameterization of these functions adapted using the mean matrix M and an element w of the first quadrant. We use this opportunity to give a self-
Joffe, A., Letac, G.
openaire   +2 more sources

Observation of B+->Lambda_c+Lambda_c-K+ and B0->Lambda_c+Lambda_c^-K0 decays [PDF]

open access: yes, 2006
We report first measurements of the doubly charmed baryonic B decays B->Lambda_c+Lambda_c-K. The B+->Lambda_c+Lambda_c-K+ decay is observed with a branching fraction of (6.5+1.0-0.9+-1.1+-3.4)x10^{-4} and a statistical significance of 15.4sigma.
Abe, K.   +129 more
core   +2 more sources

Recent results from BABAR [PDF]

open access: yesEPJ Web of Conferences, 2020
The BABAR Collaboration at SLAC continues to produce a wide variety of publications on interesting and unique topics despite having ceased data-collection operations more than 10 years ago. Presented here are the results of three recent studies.
Gary J. William
doaj   +1 more source

Improved Limits on $B^{0}$ decays to invisible $(+\gamma)$ final states [PDF]

open access: yes, 2012
We establish improved upper limits on branching fractions for B0 decays to final States 10 where the decay products are purely invisible (i.e., no observable final state particles) and for final states where the only visible product is a photon.
Adametz, A.   +365 more
core   +5 more sources

B decays to final states including D_s^{(*)} and D^* [PDF]

open access: yes, 2000
The e^+e^- annihilation data recorded with the BABAR detector has been used to study B decays to D_s^(*) and D^* mesons. The production fraction of inclusive D_s^(*) and the corresponding momentum spectra have been determined. Exclusive decays B^0 --> D^{
BENJAMIN BRAU, Collaboration H.
core   +3 more sources

Search for the rare decays $B^{0}\to J/\psi \gamma$ and $B^{0}_{s} \to J/\psi \gamma$ [PDF]

open access: yes, 2015
A search for the rare decay of a $B^{0}$ or $B^{0}_{s}$ meson into the final state $J/\psi\gamma$ is performed, using data collected by the LHCb experiment in $pp$ collisions at $\sqrt{s}=7$ and $8$ TeV, corresponding to an integrated luminosity of 3 fb$^
A, J. M.   +739 more
core   +2 more sources

Search for direct pair production of the top squark in all-hadronic final states in proton-proton collisions at √s=8 TeV with the ATLAS detector [PDF]

open access: yes, 2014
The results of a search for direct pair production of the scalar partner to the top quark using an integrated luminosity of 20.1 fb−1 of proton-proton collision data at s√ = 8 TeV recorded with the ATLAS detector at the LHC are reported.
Beckingham, M.   +9 more
core   +17 more sources

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