Highlights from the BESIII experiment

被引:0
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作者
Garzia, Isabella [1 ,2 ]
机构
[1] Univ Ferrara, Dipartimento Fis & Sci Terra, Ferrara, Italy
[2] Ist Nazl Fis Nucl INFN, Sez Ferrara, Ferrara, Italy
关键词
D O I
10.1051/epjconf/202431400008
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
Since 2009, the BESIII experiment has been collecting e(+)e(-) physics data in the energy range between 2.0 up to 4.95 GeV. This allowed the BESIII Collaboration to collect three of the largest data sets of charmonium J/psi, psi(2S), and psi(3770) resonances in the world. In particular, the radiative decay of J/psi provides a gluon-rich environment and it is therefore regarded as one of the most promising hunting grounds for glueballs, as well as a powerful tool for searching exotic states. In this proceeding, we present the first measurement of the quantum numbers of the X(2370) particle, which shows very promising glueball features, and the first observation of exotic isoscalar state eta(1)(1855) in the J/psi -> gamma eta eta' decay. Latest studies on the eta(1405)/eta(1474) are also reported, together with the observation od a new state, X(1880), observed in the J/psi -> gamma(3 pi(+)pi(-)) decay. Finally, the normalized differential cross section of inclusive pi(0), K-S(0), and eta production as a function of hadron momentum are are measured at several center of mass energies from 2.000 to 3.6710 GeV. The results deviates from several theoretical calculation based on existing fragmentation functions and provide new ingredient for global data fits.
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页数:8
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