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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 ...
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 ...
Study of the process e(+)e(-) -> phi eta at center-of-mass energies between 2.00 and 3.08 GeV
(2021)
The process e(+)e(-) -> phi eta is studied at 22 center-of-mass energy points (root s) between 2.00 and 3.08 GeV using 715 pb(-1) of data collected with the BESIII detector. The measured Born cross section of e(+)e(-) -> ...
Search for baryon- and lepton-number violating decays D0 → p ¯ e+ and D0 →pe-
(American Physical Society, 2022)
Using an electron-positron collision data sample corresponding to an integrated luminosity of 2.93 fb-1 collected with the BESIII detector at a center-of-mass energy of 3.773 GeV, we search for the baryon-number and ...
Measurement of the inclusive branching fraction for psi (3686) -> K-S(0) + anything
(ELSEVIER, 2021)
Using 5.9 pb(-1) of e(+)e(-) annihilation data collected at center-of-mass energies from 3.640 to 3.701 GeV with the BESIII detector at the BEPCII Collider, we measure the observed cross sections of e(+)e(-) -> (KSX)-X-0 ...
Partial wave analysis of J/ψ →γη η
(American Physical Society, 2022)
Using a sample of (10.09±0.04)×109 J/ψ events collected with the BESIII detector, a partial wave analysis of J/ψ→γη η is performed. The masses and widths of the observed resonances and their branching fractions are reported. ...
Study of light scalar mesons through Ds+ →π0π0e+νe and KS0 KS0 e+νe decays
(American Physical Society, 2022)
Using 6.32 fb-1 of e+e- collision data recorded by the BESIII detector at center-of-mass energies between 4.178 to 4.226 GeV, we present the first measurement of the decay Ds+→f0(980)e+νe,f0(980)→π0π0. The product branching ...