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Now showing items 1-10 of 44
Measurement of the absolute branching fraction of inclusive semielectronic D-s(+) decays
(AMER PHYSICAL SOC, 2021)
We measure the inclusive semielectronic decay branching fraction of the D-s(+) meson. A double-tag technique is applied to e(+)e(-) annihilation data collected by the BESIII experiment at the BEPCII collider, operating in ...
Search for the hyperon semileptonic decay Ξ − → Ξ 0 e − ¯¯¯ ν e
(American Physical Society, 2021)
Using events collected by the Beijing Spectrum III (BESIII) detector at the Beijing Electron Positron Collider II (BEPCII) collider, we search for the hyperon semileptonic decay . No significant signal is observed and the ...
Observation of the decays chi(cJ) -> nK(S)(0) (Lambda)over-bar + c.c.
(SPRINGER, 2021)
By analyzing 4.48 x 10(8) psi(3686) events collected with the BESIII detector, we observe the decays chi(cJ) -> nK(S)(0) (Lambda) over bar + c.c. (J = 0, 1, 2) for the first time, via the radiative transition psi(3686) -> ...
Measurement of branching fractions of J/psi and psi(3686) decays to Sigma(+) and (Sigma)over-bar(-)
(SPRINGER, 2021)
Using 1310.6 x 10(6) J/psi and 448.1 x 10(6) psi(3686) events collected with the BESIII detector, the branching fractions of J/psi decays to Sigma(+)(Sigma) over bar (-) is measured to be (10.61 +/- 0.04 +/- 0.36) x 10(-4), ...
Measurement of the absolute branching fractions of J/psi -> gamma eta and eta decay modes
(AMER PHYSICAL SOC, 2021)
Based on a data sample of (1.0087 +/- 0.0044) x 10(10) J/psi events collected by the BESIII detector at the BEPCII accelerator, the absolute branching fraction (BF) of the decay J/psi -> gamma eta is measured with high ...
Measurement of the cross section for e(+)e(-) -> Lambda(Lambda)over-bar and evidence of the decay psi(3770) -> Lambda(Lambda)over-bar
(AMER PHYSICAL SOC, 2021)
The Born cross section of the process e(+)e(-) ->Lambda(Lambda) over bar over line is measured at 33 center-of-mass energies between 3.51 and 4.60 GeV using data corresponding to the total integrated luminosity of 20.0 ...
Observation of the decay D-0 -> rho - mu + nu(mu)
(AMER PHYSICAL SOC, 2021)
By analyzing an e(+)e(-) annihilation data sample corresponding to an integrated luminosity of 2.93 fb(- 1) collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, we measure the branching fraction of ...
Measurements of the center-of-mass energies of e+e-collisions at BESIII
(IOP Publishing, 2021)
During the 2016-17 and 2018-19 running periods, the BESIII experiment collected 7.5 fb -1 of e+e- collision data at center-of-mass energies ranging from 4.13 to 4.44 GeV. These data samples are primarily used for the study ...
Measurement of A baryon polarization in e(+) e(-) -> Lambda(Lambda)over-bar at root s=3.773 GeV
(AMER PHYSICAL SOC, 2022)
Using a data sample of psi(3770) events collected with the BESIII detector at BEPCII corresponding to an integrated luminosity of 2.9 fb-1, we report a measurement of A spin polarization in e+ e- -> Lambda(Lambda) over bar ...
Measurement of e (+) e (-) -> gamma chi(c0,c1,c2) cross sections at center-of-mass energies between 3.77 and 4.60 GeV
(AMER PHYSICAL SOC, 2021)
BESIII detector at BEPCII. We observe for the first time e(+)e(-)->gamma chi(c1; c2) signals at root s = 4.180 GeV with statistical significances of 7.6s and 6.0s, respectively. The production cross section of e(+)e(-)->gamma ...
