Kaonic hydrogen measurement with DEAR at DAΦNE

被引:10
|
作者
Cargnelli, M [1 ]
Beer, G
Bragadireanu, AM
Curceanu, C
Egger, JP
Fuhrmann, H
Guaraldo, C
Iliescu, M
Ishiwatari, T
Itahashi, K
Iwasaki, M
Kienle, P
Koike, T
Lauss, B
Lucherini, V
Ludhova, L
Marton, J
Mulhauser, F
Ponta, T
Schaller, LA
Seki, R
Sirghi, DL
Sirghi, F
Zmeskal, J
机构
[1] Univ Victoria, Dept Phys & Astron, Victoria, BC V8W 3P6, Canada
[2] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[3] Inst Phys & Nucl Engn Horia Hulubei, R-76900 Bucharest, Romania
[4] Austrian Acad Sci, Inst Medium Energy Phys, A-1090 Vienna, Austria
[5] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland
[6] RIKEN, Wako, Saitama 3510198, Japan
[7] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[8] Univ Fribourg, Inst Phys, CH-1700 Fribourg, Switzerland
[9] Inst Phys & Nucl Engn Horia Hulubei, R-76900 Bucharest, Romania
[10] Calif State Univ Northridge, Dept Phys & Astrophys, Northridge, CA 91330 USA
来源
关键词
kaonic atoms; low-energy QCD;
D O I
10.1142/S0217751X05021506
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 DEAR (DA Phi NE Exotic Atom Research) experiment(1) measured the energy of Xrays emitted in the transitions to the ground states of kaonic hydrogen. The shift E and the width Gamma of the 1s state are sensitive quantities for tests of the current understanding of the low energy antikaon-nucleon interaction. We obtain epsilon(1s) = -193 +/- 37 (stat.) +/- 6 (syst.) and Gamma(1s) = 249 +/- 112 (stat.) +/- 30 (syst.).
引用
收藏
页码:341 / 348
页数:8
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