Yayın: Search for the Y(4140) via e+e- → γφJ/ψ at √s=4.23, 4.26 and 4.36 GeV
Dosyalar
Tarih
Kurum Yazarları
Tapan, İlhan
Yazarlar
Ablikim, M.
Achasov, M. N.
Ai, X. C.
Albayrak, O.
Albrecht, M.
Ambrose, D. J.
Amoroso, A.
An, F. F.
An, Q.
Bai, J. Z.
Danışman
Dil
Türü
Yayıncı:
Amer Physical Soc
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Dergi ISSN
Cilt Başlığı
Özet
Using data samples collected at center-of-mass energies root 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 phi J/psi. No significant signal is observed and upper limits on sigma[e(+)e(-) -> gamma Y(4140)] . B(Y(4140) -> phi J/psi at the 90% confidence level are estimated as 0.35, 0.28, and 0.33 pb at root s = 4.23, 4.26, and 4.36 GeV, respectively.
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Science & technology, Physical sciences, Astronomy & astrophysics, Physics, particles & fields, Physics