Abstract
Light hadron spectroscopy is one of the most important physics goals of high statistics of charmonium decays collected at BESIII which provide an excellent place for hunting gluonic excitations and studying strangeonium. In this proceeding, we will introduce two analyses for gluonic states study on η(1405)/η(1475) puzzle, X(1835) and exotic states and two analyses for strangeonium(like) states study on Y(2175) and Zs state.
Highlights
Quantum chromodynamics(QCD) is one of the fundamental theories in modern high energy physics
Using 448.0 × 106 ψ(3686) events collected with the BESIII detector, an amplitude analysis is performed for ψ(3686) → γχc1, χc1 → ηπ+π− decays which is suitable for studying the production of exotic mesons with J pc = 1−+
Using a data sample of e+e− collision data corresponding to an integrated luminosity of 108 pb−1 collected with the BESIII detector at a center-of-mass energy of 2.125 GeV, we study the process e+e− → φππ, and search for a strangeonium-like structure Zs decaying into φπ
Summary
Quantum chromodynamics(QCD) is one of the fundamental theories in modern high energy physics. Light hadron spectroscopy plays a crucial role in understanding and examining the QCD theory in non-perturbative energy region. BESIII has collected 1.31×109 J/ψ events and 4.48×108 ψ(3686) events since 2009 which gives us a good opportunity to study light hadron spectroscopy
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