Kaonic Helium X-rays

被引：1

作者：

Hayano, Ryugo S. ^{[1
]}

机构：

[1] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

来源：

INTERNATIONAL NUCLEAR PHYSICS CONFERENCE 2010 (INPC2010): HADRONS IN NUCLEI | 2011年 / 312卷

关键词：

ENERGY; ATOMS;

D O I：

10.1088/1742-6596/312/2/022004

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The long-standing "Kaonic-helium puzzle", i.e., the discrepancy between the measured and calculated 2p-level strong-interaction shift of kaonic helium 4, has been solved by the KEK E570 experiment; the measured 2p-level shift was 2 +/- 2(stat) +/- 2(syst) eV, thus agreeing with a majority of the theoretical calculations in contradiction to the previous average of 3 experiments of -43 +/- 8eV. The smallness of the kaonic helium-4 2p-level shift has recently been confirmed by the SIDDHARTA collaboration at DA Phi NE. Both of these experiments used silicon drift X-ray detectors (SDDs), and have used elaborate in-situ calibration methods. In order to further study the low-energy kaon-nucleus interaction, the J-PARC E17 experiment will soon measure the kaonic helium-3 2p-level shift to high precision. I also briefly discuss the status of kaonic hydrogen x-ray spectroscopy.

引用

页数：7

共 50 条

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