TY  - SER
AU  - Ablikim,M.
AU  - Ahmed,S.
AU  - Chelkov,G.A.
AU  - Achasov,M.N.
TI  - Observation of e+e- →ηhc at center-of-mass energies from 4.085 to 4.600 GeV
KW  - BESIII, детектор
KW  - BEPCII, коллайдер
KW  - статьи в журналах
N1  - Библиогр.: 61 назв
N2  - We observe for the first time the process e+e−→ηhc with data collected by the BESIII experiment. Significant signals are observed at the center-of-mass energy s=4.226 GeV, and the Born cross section is measured to be (9.5−2.0+2.2±2.7) pb. Evidence for ηhc is observed at s=4.358 GeV with a Born cross section of (10.0−2.7+3.1±2.6) pb, and upper limits on the production cross section at other center-of-mass energies between 4.085 and 4.600 GeV are determined
UR  - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000626129
ER  -