Results 31 to 40 of about 53,341 (119)

Measurements of the branching fractions of $${\Xi }_{c}^{+}\to {\Sigma }^{+}{K}_{S}^{0}$$ , $${\Xi }_{c}^{+}\to {\Xi }^{0}{\pi }^{+}$$ , and $${\Xi }_{c}^{+}\to {\Xi }^{0}{K}+$$ at Belle and Belle II

open access: yesJournal of High Energy Physics
Using 983.0 fb −1 and 427.9 fb −1 data samples collected with the Belle and Belle II detectors at the KEKB and SuperKEKB asymmetric energy e + e − colliders, respectively, we present studies of the Cabibbo-favored $${\Xi }_{c}^{+}$$ decays $${\Xi }_{c}^{+
The Belle the Belle II collaboration   +360 more
doaj   +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

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 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

Observation of the B + → Jψη′K + decay

open access: yesJournal of High Energy Physics, 2023
The B + → Jψη′K + decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb −1.
The LHCb collaboration   +1063 more
doaj   +1 more source

Measurement of the absolute branching fraction of the inclusive decay $$\Lambda _c^+ \rightarrow K_S^0X$$ Λ c + → K S 0 X

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We report the first measurement of the absolute branching fraction of the inclusive decay $$\Lambda _c^+ \rightarrow K_S^0X$$ Λ c + → K S 0 X . The analysis is performed using an $$e^+e^-$$ e + e - collision data sample corresponding to an integrated ...
M. Ablikim   +490 more
doaj   +1 more source

Amplitude analysis and branching fraction measurement of the Cabibbo-favored decay D + → K − π + π + π 0

open access: yesJournal of High Energy Physics
An amplitude analysis of the Cabibbo-favored decay D + → K − π + π + π 0 is performed, using 7.93 fb −1 of e + e − collision data collected with the BESIII detector at the center-of-mass energy of 3.773 GeV.
The BESIII collaboration   +675 more
doaj   +1 more source

First observation of B + → D s + K + K − decays and a search for B + → D s + ϕ decays

open access: yesJournal of High Energy Physics, 2018
A search for B + → D s + K + K − decays is performed using pp collision data corresponding to an integrated luminosity of 4.8 fb−1, collected at centre-of-mass energies of 7, 8 and 13 TeV with the LHCb experiment. A significant signal is observed for the
The LHCb collaboration   +801 more
doaj   +1 more source

Contributions of vector leptoquark to Ξb→Ξcτν¯τ decay

open access: yesNuclear Physics B, 2019
Motivated by the RD(⁎) anomalies in semileptonic B meson decay which can be explained by adding a single vector leptoquark U3(3,3,23) to the Standard Model, we further analyse the New Physics effects of vector leptoquark to the heavy baryon Ξb→Ξcτ−ν¯τ ...
Jiao Zhang, Jianfeng Su, Qingguo Zeng
doaj   +1 more source

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