Observation of kaonic hydrogen atom X-ray

被引：0

作者：

S.N. Nakamura

K. Bartlett

G.A. Beer

G.R. Gill

R.S. Hayano

T.M. Ito

M. Iwasaki

L. Lee

G. Mason

A. Olin

H. Outa

M. Salomon

R. Seki

T. Taniguchi

T.P. Terada

G. Trayling

Y. Yamashita

S. Yen

机构：

[1] The Institute of Physical and Chemical Research (RIKEN),Muon Science Laboratory

[2] University of Victoria,Department of Physics and Astronomy

[3] TRIUMF,Department of Physics

[4] University of Tokyo,W.K. Kellogg Radiation Laboratory

[5] California Institute of Technology,Department of Physics

[6] Tokyo Institute of Technology,Department of Physics

[7] University of Manitoba,undefined

[8] High Energy Accelerator Research Organization (KEK),undefined

来源：

Hyperfine Interactions | 1999年 / 118卷

关键词：

Charged Pion; Titanium Foil; Plastic Scintillation; Beam Pion; Kaonic Hydrogen;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We successfully observed clear K-series kaonic hydrogen X-rays for the first time taking advantage of two charged pions tagging technique and a gaseous hydrogen target. The strong-interaction energy shift and width of 1s state of K−p atom were determined to be ΔE1s = -323 ± 63 (statistical) ± 11 (systematic) eV and Г1s = 407 ± 208 ± 100 eV. Our result means that the K−p strong interaction near threshold is repulsive and the long-standing kaonic hydrogen puzzle is solved.

引用

页码：45 / 51

页数：6