Double K S 0 photoproduction off the proton at CLAS
Double K S 0 photoproduction off the proton at CLAS
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CLAS 质子上的 Double K S 0 摄影制作
DOI：
10.1103/physrevc.97.025203
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发表时间：
2018
影响因子：
3.1
通讯作者：
Chandavar S
中科院分区：
文献类型：
--
作者：
Chandavar S
子共振是与最轻的胶球有显著混合的几个竞争者之一。这种共振是从以前的几个实验中很好地建立起来的。在这里，我们提出了第一个光生数据的thevia衰减到通道使用的CLAS探测器。反应，其中，测量光子能量从2.7-5.1 GeV。在扣除背景的两种K介子不变质谱中，在1500 MeV处看到一个明显的峰。如果测量到的质子目标的四动量转移被限制为小于1.0，这是增强的。通过与模拟结果的比较，可以得出结论：1500 MeV处的峰值主要是在低能量下产生的，这与α通道产生机制相一致。
Themeson resonance is one of several contenders to have significant mixing with the lightest glueball. This resonance is well established from several previous experiments. Here we present the first photoproduction data for thevia decay into thechannel using the CLAS detector. The reaction, where, was measured with photon energies from 2.7–5.1 GeV. A clear peak is seen at 1500 MeV in the background subtracted invariant mass spectra of the two kaons. This is enhanced if the measured four-momentum transfer to the proton target is restricted to be less than 1.0. By comparing data with simulations, it can be concluded that the peak at 1500 MeV is produced primarily at low, which is consistent with a-channel production mechanism.