论文标题

在上下文中可见的四局的新结果

New results on the tetraneutron, seen in context

论文作者

Faestermann, Thomas

论文摘要

在最近的出版物中,描述了一个实验,该实验搜索了四个中子系统中的共鸣。以令人信服的方式,已经测量了质子子的$α$ - 粒子折叠$^8 $ he nuclei,并且已经根据测得的四粒$α$粒子和质子来计算其余四个中子的缺失质量。缺失的质谱显示了与连续体的四个中子系统激发相对应的事件。此外,还有一个接近零质量的峰值,可令人信服地解释为具有四个中子E*= 2.37(58)MEV的激发能的共振,而Breit-Wigner分布的宽度为$γ$ = 1.75(37)MEV。不幸的是,在Duer等人中。出版物没有提到我们六个月前出现的论文,但是在手稿提交了大自然之后。至少,相应的新闻和观点文章应该提到我们的测量,因为这可能是在接受Duer等人后写的。纸。在这里,我尝试一起看到两个结果。

In a recent publication an experiment is described which searched for a resonance in the four-neutron system. In a convincing way the knockout of an $α$-particle off $^8$He nuclei by protons has been measured and the missing mass of the remaining four neutrons has been calculated from the measured four-momenta of $α$-particles and protons. The missing mass spectrum shows a bump of events corresponding to excitation of the four-neutron system to the continuum. In addition, there is a peak near zero missing mass that is convincingly interpreted as a resonance with excitation energy of the four neutrons E*= 2.37(58) MeV and a width of a Breit-Wigner distribution of $Γ$=1.75(37) MeV. Unfortunately, in the Duer et al. publication no reference has been made to our paper which had appeared six months earlier, but after the submission of their manuscript to Nature. At least, the corresponding News and Views article should have mentioned our measurement, since that was presumably written after acceptance of the Duer et al. paper. Here, I try to see both results together.

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