论文标题
$ k^+λ$（1405）在BGO-OD实验中的光生效
$K^+Λ$(1405) photoproduction at the BGO-OD experiment
论文作者
论文摘要
自从发现$λ（1405）$的情况下，它仍然被传统的夸克模型描述不佳，并且是具有“异国情调的”梅森 - 巴里昂或“ penta-quark”结构的候选人，类似于最近在隐藏式魅力部门报道的州。 $λ（1405）$可以在反应$γp\ rightarrow k^+λ（1405）$中产生。纯i = 0衰减模式进入$σ^0π^0 $，对于质量重叠的$σ（1385）$禁止。 BGO-OD实验结合了大型光圈前磁光谱仪和中央BGO晶体热量表，非常适合用$ k^+$在正方向上测量这种衰变。提出了初步结果。 *由DFG（PN 388979758，405882627）支持。
Since the discovery of the $Λ(1405)$, it remains poorly described by conventional constituent quark models, and it is a candidate for having an "exotic" meson-baryon or "penta-quark" structure, similar to states recently reported in the hidden charm sector. The $Λ(1405)$ can be produced in the reaction $γp \rightarrow K^+Λ(1405)$. The pure I=0 decay mode into $Σ^0π^0$ is prohibited for the mass-overlapping $Σ(1385)$. Combining a large aperture forward magnetic spectrometer and a central BGO crystal calorimeter, the BGO-OD experiment is ideally suited to measure this decay with the $K^+$ in the forward direction. Preliminary results are presented. *Supported by DFG (PN 388979758, 405882627).
