Search for the Y(4140) via e+e- --> γϕJ/ψ at √s=4.23, 4.26 and 4.36 GeV /M. Ablikim, M. N. Achasov, X. C. Ai [et.al.]

Электронный ресурс
Другой Автор
Ablikim, M.
Ai, X. C.
Chelkov, G. A.
Achasov, M. N.
Источник
Physical Review D 2015 Vol. 91, № 3.P. 032002-1-032002-11
Аннотация
Using data samples collected at center-of-mass energies s√=4.23, 4.26, and 4.36 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the production of the charmoniumlike state Y(4140) through a radiative transition followed by its decay to ϕJ/ψ. No significant signal is observed and upper limits on σ[e+e−→γY(4140)]⋅B(Y(4140)→ϕJ/ψ) at the 90% confidence level are estimated as 0.35, 0.28, and 0.33 pb at s√=4.23, 4.26, and 4.36 GeV, respectively.
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$a Using data samples collected at center-of-mass energies s√=4.23, 4.26, and 4.36 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the production of the charmoniumlike state Y(4140) through a radiative transition followed by its decay to ϕJ/ψ. No significant signal is observed and upper limits on σ[e+e−→γY(4140)]⋅B(Y(4140)→ϕJ/ψ) at the 90% confidence level are estimated as 0.35, 0.28, and 0.33 pb at s√=4.23, 4.26, and 4.36 GeV, respectively.
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$a Achasov, M. N.
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Предмет
статьи, опубликованные в зарубежных изданиях
Резюме
Using data samples collected at center-of-mass energies s√=4.23, 4.26, and 4.36 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the production of the charmoniumlike state Y(4140) through a radiative transition followed by its decay to ϕJ/ψ. No significant signal is observed and upper limits on σ[e+e−→γY(4140)]⋅B(Y(4140)→ϕJ/ψ) at the 90% confidence level are estimated as 0.35, 0.28, and 0.33 pb at s√=4.23, 4.26, and 4.36 GeV, respectively.