$^{19}$ Mg和$^{16}$ Ne双质子衰变中的质子-质子关联
Proton-proton correlations observed in two-proton decay of $^{19}$Mg and $^{16}$Ne
摘要：
对$^{19}$ Mg和$^{16}$ Ne基态的双质子衰变进行了质子-质子关联研究。通过使用微带探测器的跟踪技术测量了相应的衰变产物$^{17}$ Ne+p+p和$^{14}$ O+p+p的轨迹。这些数据被用来重建的角度相关的碎片投影在平面上的前体动量的横向。测量的三粒子相关性反映了一个真正的三体衰变机制，并使我们能够获得光谱信息的前体与价质子的$sd$壳。
英文摘要：
Proton-proton correlations were observed for the two-proton decays of the ground states of $^{19}$Mg and $^{16}$Ne. The trajectories of the respective decay products, $^{17}$Ne+p+p and $^{14}$O+p+p, were measured by using a tracking technique with microstrip detectors. These data were used to reconstruct the angular correlations of fragments projected on planes transverse to the precursor momenta. The measured three-particle correlations reflect a genuine three-body decay mechanism and allowed us to obtain spectroscopic information on the precursors with valence protons in the $sd$ shell.
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