Precise measurement of the e+e- →π+π-J /ψ cross section at center-of-mass energies from 3.77 to 4.60 GeV

The cross section for the process e+e−→π+π−J/ψ is measured precisely at center-of-mass energies from 3.77 to 4.60 GeV using 9  fb−1 of data collected with the BESIII detector operating at the BEPCII storage ring. Two resonant structures are observed in a fit to the cross section. The first resonance...

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Bibliographic Details

Published in:	Physical Review Letters Vol. 118, № 9. P. 092001-1-092001-8
Other Authors:	Achasov, M. N., Ahmed, S., Chelkov, G. A., Ablikim, M.
Format:	Article
Language:	English
Subjects:	BEPCII, коллайдер BESIII, детектор статьи в журналах
Online Access:	http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000581789 Перейти в каталог НБ ТГУ