Browsing by Author "Kolcu, O.B."
Now showing items 1-6 of 6
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Measurement of the cross section for e(+)e(-) -> Lambda(Lambda)over-bar and evidence of the decay psi(3770) -> Lambda(Lambda)over-bar
Ablikim, M.; Achasov, M. N.; Adlarson, P.; Ahmed, S.; Albrecht, M.; Aliberti, R.; Cetin, S. A.; Kolcu, O.B. (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 ... -
Measurement of the Cross Section for e+e- →Hadrons at Energies from 2.2324 to 3.6710 GeV
Ablikim, M.; Achasov, M.N.; Adlarson, P.; Ahmed, S.; Albrecht, M.; Cetin, S.A.; Kolcu, O.B. (American Physical Society, 2022)Based on electron-positron collision data collected with the BESIII detector operating at the Beijing Electron-Positron Collider II storage rings, the value of Rσ(e+e-→hadrons)/σ(e+e-→μ+μ-) is measured at 14 center-of-mass ... -
Observation of the double Dalitz decay η′ →e+e-e+e-
Ablikim, M.; Achasov, M.N.; Adlarson, P.; Albrecht, M.; Cetin, S.A.; Kolcu, O.B. (American Physical Society, 2022)Based on (10087±44)×106 J/ψ events collected with the BESIII detector at BEPCII, the double Dalitz decay η′→e+e-e+e-is observed for the first time via the J/ψ→γη′ decay process. The significance is found to be 5.7σ with ... -
Partial wave analysis of J/ψ →γη η
Ablikim, M.; Achasov, M.N.; Adlarson, P.; Ahmed, S.; Albrecht, M.; Aliberti, R.; Amoroso, A.; An, M.R.; An, Q.; Bai, X.H.; Bai, Y.; Bakina, O.; Cetin, S. A.; Kolcu, O.B. (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. ... -
Search for the decay D0 →π0ν ν ¯
Ablikim, M.; Achasov, M.N.; Adlarson, P.; Ahmed, S.; Cetin, S. A.; Kolcu, O.B. (American Physical Society, 2022)We present the first experimental search for the rare charm decay D0→π0νν¯. It is based on an e+e- collision sample consisting of 10.6×106 pairs of D0D¯0 mesons collected by the BESIII detector at s=3.773 GeV, corresponding ... -
Study of light scalar mesons through Ds+ →π0π0e+νe and KS0 KS0 e+νe decays
Ablikim, M.; Achasov, M.N.; Adlarson, P.; Ahmed, S.; Albrecht, M.; Aliberti, R.; Amoroso, A.; An, M.R.; An, Q.; Bai, X.H.; Bai, Y.; Bakina, O.; Kolcu, O.B. (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 ...
