eta(c) three-body decays at BABAR

NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS(2022)

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摘要
We study the processes gamma gamma ->eta c ->eta'K+K-, eta'pi(+)pi(-), and eta pi(+)pi(-) using a data sample of 519 fb(-1) recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e(+)e(-) collider at center-of-mass energies at and near the Upsilon(nS ) (n = 2, 3, 4) resonances. A Dalitz plot analysis is performed of eta(c) decays to eta'K+K-,eta'pi(+) pi(-), and eta pi(+)pi(-). We compare eta(c) decays to eta and eta' final states in association with scalar mesons as they relate to the identification of the scalar glueball.
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关键词
charmonium decays, Dalitz plot analysis, light meson spectroscopy, glueballs
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