arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1804.09121hep-ph
收藏

PP中心排他产生实验中f0(1370)标量胶球候选者的π+π衰变

Decays into π+π- of the f0(1370) scalar glueball candidate in pp central exclusive production experiments

Ugo Gastaldi, Mirko Berretti

摘要:

从静止反质子湮灭的数据可以很好地证实f0(1370)标量介子的存在和性质。然而,上个千年的中心独占产生(CEP)实验的相互矛盾的结果,以及对H2和D2泡室中静止反质子湮灭数据的忽视,使人们对f0(1370)的存在产生了怀疑。在旧的数据中观察到的中心排他产生(CEP)反应中产生的π+π-对的性质,以及在最近十年在高能对撞机上收集的数据,允许表明f0(1370)介子的π+π-衰变可以直接观察到1.1和1.6 GeV之间的孤立峰。这一观察的后果和前景的标量胶球基态的识别进行了讨论。

英文摘要:

The existence and properties of the f0(1370) scalar meson are rather well established from data of antiproton annihilations at rest. However conflicting results from Central Exclusive Production (CEP) experiments of the last millennium and ignorance of data from antiproton annihilations at rest in H2 and D2 bubble chambers have generated doubts on the very existence of the f0(1370). Properties of π+π- pairs produced in central exclusive production (CEP) reactions observed in old data together with data collected in the current decade at high energy colliders permit to show that π+π- decays of the f0(1370) meson are directly observable as an isolated peak between 1.1 and 1.6 GeV. Consequences of this observation and prospects for the identification of the scalar glueball ground-state are discussed.

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。

↑