Precision spectroscopy of Kaonic helium-3 and helium-4 3d → 2p X-rays

被引：0

作者：

Ishiwatari, T. ^{[1
]}

Bazzi, M. ^{[2
]}

Bhang, H. ^{[3
]}

Beer, G. ^{[4
]}

Bombelli, L. ^{[5
]}

Bragadireanu, A. M. ^{[2
,6
]}

Cargnelli, M. ^{[1
]}

Choi, S. ^{[3
]}

Corradi, G. ^{[2
]}

Curceanu , C. ^{[2
]}

d'Uffizi, A. ^{[2
]}

Enomoto, S. ^{[7
]}

Fiorini, C. ^{[5
]}

Frizzi, T. ^{[5
]}

Fujioka, H. ^{[8
]}

Fujiwara, Y. ^{[9
]}

Ghio, F. ^{[10
,11
]}

Girolami, B. ^{[10
,11
]}

Guaraldo, C. ^{[2
]}

Hashimoto, T. ^{[9
]}

Hayano, R. S. ^{[9
]}

Hiraiwa, T. ^{[8
]}

Iio, M. ^{[12
]}

Iliescu, M. ^{[2
,6
]}

Ishimoto, S. ^{[13
]}

Itahashi, K. ^{[12
]}

Iwasaki, M. ^{[12
,14
]}

Kienle, P. ^{[1
,15
]}

Kou, H. ^{[14
]}

Sandri, P. Levi ^{[2
]}

Longoni, A. ^{[5
]}

Lucherini, V. ^{[2
]}

Marton, J. ^{[1
]}

Matsuda, Y. ^{[9
]}

Noumi, H. ^{[7
]}

Ohnishi, H. ^{[12
]}

Okada, S. ^{[2
]}

Outa, H. ^{[12
]}

Pietreanu, D. ^{[2
]}

Ponta, T. ^{[6
]}

Rizzo, A. ^{[2
]}

Vidal, A. Romero ^{[2
]}

Sakuma, F. ^{[12
]}

Sato, M. ^{[9
]}

Scordo, A. ^{[2
]}

Sekimoto, M. ^{[13
]}

Shi, H. ^{[9
]}

Sirghi, D. L. ^{[2
,6
]}

Sirghi, F. ^{[2
,6
]}

Suzuki, T. ^{[9
]}

机构：

[1] Stefan Meyer Inst Subatomare Phys, Vienna, Austria

[2] Ist Nazl Fis Nucl, Lab Nazl Frascati, Frascati, Italy

[3] Seoul Natl Univ, Dept Phys, Seoul, South Korea

[4] Univ Victoria, Dept Phys & Astron, Victoria, BC, Canada

[5] Politecn Milan, Sez Elettron, Milan, Italy

[6] IFIN HH, Bucharest, Romania

[7] Osaka Univ, Res Ctr Nucl Phys, Suita, Osaka, Japan

[8] Kyoto Univ, Kyoto, Japan

[9] Univ Tokyo, Tokyo, Japan

[10] INFN Sez Roma I, Rome, Italy

[11] Inst Super Sanita, Rome, Italy

[12] RIKEN, Inst Phys & Chem Res, Saitama, Japan

[13] High Energy Accelerator Res Org KEK, Tokyo, Japan

[14] Tokyo Inst Technol, Tokyo, Japan

[15] Tech Univ Munich, Garching, Germany

来源：

HADRON 2009 | 2010年 / 1257卷

关键词：

Exotic atoms; Kaonic helium; Silicon drift detector; HELIUM; ATOMS;

D O I：

10.1063/1.3483438

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Recently, the shift of the kaonic helium-4 2p state was precisely determined by the E570 and SIDDHARTA experiments. Prior to the experiment by E570, the average of three earlier experimental results showed -43 +/- 8 eV, while most of the theoretical calculations give 0 eV. This five-sigma discrepancy between theory and experiment was known as the "kaonic helium puzzle". A recent theoretical model showed a possible resonance-like shift of maximum 10 eV for a certain value of a deep antikaon-nucleon interaction potential, which is different in helium 3 and helium 4. The E570 experiment determined the shift of the kaonic helium-4 2p state as +2 +/- 2 (stat) +/- 2 (sys) eV in 2007. The SIDDHARTA experiment determined the shift as 0 6 (stat) 2 (sys) eV in 2009. The results of these experiments resolved the long-standing puzzle. A new experiment of the kaonic helium-3 X-ray measurement is being prepared by the J-PARC E17 collaborators, and the kaonic helium-3 X-ray data taken very recently by the SIDDHARTA experiment are on the way to be analyzed. The results of the E570, E17 and SIDDHARTA experiments examine the strong interaction for light nuclei with different isospin, and test furthermore recent theoretical predictions.

引用

页码：765 / +

页数：2

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