Cross section measurement of $e^+e^- \rightarrow \eta'J/\psi$ from $\sqrt{s} = 4.178$ to $4.600$ GeV - INSPIRE

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Cross section measurement of $e^+e^- \rightarrow \eta'J/\psi$ from $\sqrt{s} = 4.178$ to $4.600$ GeV

BESIII

Collaboration

Nov 3, 2019

9 pages

Published in:

Phys.Rev.D 101 (2020) 1, 012008

Published: Jan 21, 2020

e-Print:

1911.00885 [hep-ex]

DOI:

10.1103/PhysRevD.101.012008

PDG:

{{\mathit \psi}{(4160)}}

\rightarrow

{{\mathit e}^{+}}{{\mathit e}^{-}}

Experiments:

BEPC-BES-III

View in:

ADS Abstract Service

reference search31 citations

Citations per year

Abstract: (APS)

The cross section of the process e+e-→η′J/ψ is measured at center-of-mass (c.m.) energies from s=4.178 to 4.600 GeV using data samples corresponding to a total integrated luminosity of 11 fb-1 collected with the BESIII detector operating at the BEPCII storage ring. The dependence of the cross section on s shows an enhancement around 4.2 GeV. While the shape of the cross section cannot be fully explained with a single ψ(4160) or ψ(4260) state, a coherent sum of the two states does provide a reasonable description of the data.

Particle Physics Experiments
electron positron: annihilation
electron positron: colliding beams
eta(958)
J/psi(3100)
Beijing Stor
enhancement
psi(4160)
Y(4260)
coherence

References(35)

Figures(0)

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