Kaonic helium X-ray measurement in the SIDDHARTA experiment

Kaonic helium X-ray measurement in the SIDDHARTA experiment
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SIDDHARTA 实验中的 Kaonic 氦 X 射线测量

DOI:
10.1088/1742-6596/312/2/022021
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发表时间:
2011
期刊:
Journal of Physics : Conference Series
影响因子:
--
通讯作者:
et al
et al
中科院分区:
--
文献类型:
--
作者:
H.Shi;et al

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SIDDHARTA(用于强子原子研究和定时应用的硅漂移探测器)合作在 DAΦNE e+ e− 对撞机上对高强酸原子进行了 X 射线光谱测量。来自 DAΦNE phi-factory 的低能负 kaons 被停止在气态靶中以产生 kaonic 原子。我们采用专门设计的硅漂移探测器 (SDD) 来检测 kaonic X 射线。基于kaonic-4 He 3d→ 2p跃迁的能量,我们确定了kaonic-4 He 2p能级强相互作用位移的新值:0±6(统计)±2(系统)eV [1]。结合最近在 KEK-PS 进行的 E570 实验 [2] 的结果,kaonic-4 He 2p 水平的小幅变化(如果有的话)已经得到证实。
The SIDDHARTA (SIlicon Drift Detector for Hadronic Atom Research with Timing Application) collaboration performed X-ray spectroscopy measurement of kaonic atoms at the DAΦNE e+ e− collider. Low energy negative kaons from DAΦNE ϕ-factory were stopped in gaseous targets to produce kaonic atoms. We employed specially designed Silicon Drift Detectors (SDDs) to detect the kaonic X-rays. Based on the energy of kaonic-4 He 3d→ 2p transition, we determined a new value of the 2p level strong-interaction shift of kaonic-4 He: 0±6 (stat.)±2 (syst.) eV [1]. Together with the result of recent E570 experiment [2] at the KEK-PS, a small shift (if any) of kaonic-4 He 2p level has become well established.
DOI: 10.1103/physrevlett.27.1410
发表时间: 1971-01-01
影响因子: 8.6
作者:
WIEGAND, CE;PEHL, RH
通讯作者: PEHL, RH
DOI: 10.1016/0375-9474(83)90127-6
发表时间: 1983-01-01
期刊: NUCLEAR PHYSICS A
影响因子: 1.4
作者:
BAIRD, S;BATTY, CJ;SQUIER, GTA
通讯作者: SQUIER, GTA
DOI: 10.1016/0375-9474(79)90403-2
发表时间: 1979-01-01
期刊: NUCLEAR PHYSICS A
影响因子: 1.4
作者:
BATTY, CJ;BIAGI, SF;SQUIER, GTA
通讯作者: SQUIER, GTA