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arXiv 1012.4326hep-exnucl-ex
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J-PARC P02项目:“THE研究$Λ$ -超子、$K^0_S $ -介子和$γ$ -量子系统中的奇异多夸克态”

J-PARC P02 project:"THE Study of Exotic Multiquark States in Systems with $Λ$-Hyperons, $K^0_S $-Mesons and $γ$ - Quanta

Aslanyan P. Zh

摘要:

设计的2 m丙烷气泡室(PBC)采用现代PC电源技术和高精度数字照相方法,是一种独特的多方案、有竞争力和高信息量的4 $π$探测器,用于研究$V^0$($Λ,K^0_s$和$γ$)粒子、轻超核、($V^0, V^0$)相互作用和其他关联(P02 J-PARC LOI)的奇异多奇异事件。PBC无与伦比的特权首先是多顶点或复杂衰减模式的配准(具有10-50 $μ$ m空间分辨率),其中也包括射束区域。在10 GeV/c的p+C反应中,70%以上的$Λ$超子是在方位角$β$或极角$< 15^0$的束区内发射的,因此,探测器对束区的接受度对$Λ$超子物理至关重要。从PDG观察到的众所周知的共振$Σ^{0}$、$Σ^{*\pm}$(1385)和$K^{*\pm}$(892)是该方法的良好测试。P02项目的主题允许探索具有$V^0$粒子的强子系统中的多奇异性,这些粒子也包括通过J-PARC的缺失质量方法批准的P05,P07,P18,p22和p027实验。新开发的研究复合物NUCLATRON-M在JINR和J-PARC在JAEA(KEK)的基础上,数字技术的进步,BC实验方法允许在合理的时间内获得必要的统计数据,这激发了乐观的态度,建立奇异状态与$Λ$和$K^0_s$粒子,这是观察到超过30年的历史时期,从不同的旧实验与穷人的统计数据。只有高的统计数据或从许多类似的老照片没有新的必要的接受,分辨率和方法分析,将不可能获得有关这些对象的新信息。

英文摘要:

The designed 2m propane bubble chambers(PBC) with modern power technologies for PC and high precision digital photographic methods is a unique multi-propose, competitive capable and higher-informative 4$π$ detector for study of exotic multi-strange events with $V^0$($Λ,K^0_s$ and $γ$) particles, light hyper-nucleus, ($V^0, V^0$) interactions and other correlations (P02 J-PARC LOI). First from all of unbeatable privilege for PBC are registration of multi-vertex or complex decay modes(with 10-50$μ$m space resolution), where is included of the beam area too. The acceptance of beam area for detectors is crucial important for $Λ$ hyperon physics, because more than 70% from $Λ$ hyperons are emitted in the beam area with azimuth $β$ or polar angles $< 15^0$ in p+C reaction at 10 GeV/c. The observed well-known resonances $Σ^{0}$, $Σ^{*\pm}$(1385) and $K^{*\pm}$(892) from PDG are good tests of this method. The subject of proposed P02 project allow to explore of multi-strangeness in hadronic systems with $V^0$ particles what are also included as P05,P07,P18, p22 and p027 approved experiments by a missing mass method at J-PARC. New developed research complexes NUCLATRON-M at JINR and J-PARC at JAEA(KEK) on base of progress in digital technology for BC experimental method allow to obtain of a necessary statistics in reasonable time, what inspire the optimism for establish exotic states with $Λ$ and $K^0_s$ particles, which were observed more than 30 year historical periods from different old experiments with a poor statistics. Only with high statistics or from many similarly old photographs without new necessary acceptance, resolution and methods analysis there will not possible to obtain of new information about these objects.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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