Charmonium-like States at BESIII

被引:0
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作者
Weidner, Frederik [1 ]
机构
[1] Univ Munster, Inst Nucl Phys, Wilhelm Klemm Str 9, D-48149 Munster, Germany
关键词
RESONANCE; MESON;
D O I
10.1051/epjconf/202430301024
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
Using e(+) e(-) annihilation data taken by the BESIII detector, several searches for charmonium-like states were performed: In e(+) e(-) -> D-s*(+) D-s*(-) using datasets with center-of-mass energies of 4.23 GeV to 4.95 GeV corresponding to a total integrated luminosity of 15.67 fb(-1), three peaks around 4.19 GeV, 4.41 GeV and 4.79 GeV were observed. In e(+)e(-) -> D*D-0*(-)pi(+) at 4.19 GeV to 4.95 GeV corresponding to L-int = 17.9 fb(-1), three peaks at 4.20 GeV, 4.47 GeV and 4.67 GeV were identified. And in psi(3770) -> gamma eta eta ', gamma pi(+) pi(-) J/psi with L-int = 2.93 fb(-1) an upper limit on the production of a scalar partner of the chi(c1)(3872) was determined.
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