Results 71 to 80 of about 2,767,400 (208)

Measurement of Inclusive Radiative B-meson Decays with a Photon Energy Threshold of 1.7 GeV

open access: yes, 2009
Using 605/fb of data collected at the Upsilon(4S) resonance we present a measurement of the inclusive radiative B-meson decay channel, B to X_s gamma. For the lower photon energy thresholds of 1.7, 1.8, 1.9 and 2.0GeV, as defined in the rest frame of the
Aihara, H.   +118 more
core   +2 more sources

Measurement of the differential branching fraction of the decay Λ0b→Λμ+μ− [PDF]

open access: yes, 2013
The differential branching fraction of the decay Λ0b→Λμ+μ− is measured as a function of the square of the dimuon invariant mass, q2. A yield of 78 ± 12 Λ0b →Λμ+μ− decays is observed using data, corresponding to an integrated luminosity of 1.0 fb−1 ...
Back, J. J.   +13 more
core   +1 more source

Differential branching fraction and angular analysis of Λb0 → Λμ+μ− decays

open access: yesJournal of High Energy Physics, 2015
The differential branching fraction of the rare decay Λb0 → Λμ+μ− is measured as a function of q2, the square of the dimuon invariant mass. The analysis is performed using proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb ...
R. Aaij   +499 more
semanticscholar   +1 more source

Study of the kinematic dependences of Λb0 production in pp collisions and a measurement of the Λb0 → Λc+π− branching fraction [PDF]

open access: yes, 2014
A bstractThe kinematic dependences of the relative production rates, fΛb0/fd$$ {f}_{\varLambda_b^0}/{f}_d $$, of Λb0 baryons and B0 mesons are measured using Λb0 → Λc+π− and B¯0→D+π−$$ {\overline{B}}^0\ \to {D}^{+}{\pi}^{-} $$ decays.
R. Aaij   +499 more
semanticscholar   +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

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  

Observation of B+ -> proton Lambdabar gamma

open access: yes, 2004
We report the first observation of the radiative hyperonic B decay B+ -> proton Lambdabar gamma, using a 140 fb-1 data sample recorded on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider.
A. Bondar   +164 more
core   +2 more sources

A Study of B+->p pbar K+ and a Search for a Theta*++ Pentaquark Candidate in B Decay

open access: yes, 2004
A study of the decay B+->ppbarK+ is performed using 81fb-1 of data collected at the Upsilon(4S) with the BaBar detector at PEP-II. The branching fraction of B+->ppbarK+ is measured to be (6.7+/-0.9+/-0.6)x10^-6.
Berger-Hryn'ova, Tetiana   +1 more
core   +1 more source

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

Measurement of the absolute branching fraction for Λc+→Λμ+νμ

open access: yesPhysics Letters B, 2017
We report the first measurement of the absolute branching fraction for Λc+→Λμ+νμ. This measurement is based on a sample of e+e− annihilation data produced at a center-of-mass energy s=4.6 GeV, collected with the BESIII detector at the BEPCII storage ...
M. Ablikim   +428 more
doaj   +1 more source

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