X-RAY SPECTROSCOPY OF KAONIC ATOMS AT DAΦNE

被引：0

作者：

Vidal, A. Romero ^{[1
]}

Bazzi, M. ^{[1
]}

Beer, G. ^{[2
]}

Bombelli, L. ^{[3
]}

Bragadireanu, A. M. ^{[1
,4
]}

Cargnelli, M. ^{[5
]}

Corradi, G. ^{[1
]}

Curceanu , C. ^{[1
]}

D'Uffizi, A. ^{[1
]}

Fiorini, C. ^{[3
]}

Frizzi, T. ^{[3
]}

Ghio, F. ^{[6
,7
]}

Girolami, B. ^{[6
,7
]}

Guaraldo, C. ^{[1
]}

Hayano, R. S. ^{[8
]}

Iliescu, M. ^{[1
,4
]}

Ishiwatari, T. ^{[5
]}

Iwasaki, M. ^{[9
]}

Kienle, P. ^{[5
,10
]}

Sandri, P. Levi ^{[1
]}

Longoni, A. ^{[3
]}

Lucherini, V. ^{[1
]}

Marton, J. ^{[5
]}

Okada, S. ^{[1
]}

Pietreanu, D. ^{[1
]}

Ponta, T. ^{[4
]}

Rizzo, A. ^{[1
]}

Scordo, A. ^{[1
]}

Shi, H. ^{[8
]}

Sirghi, D. L. ^{[1
,4
]}

Sirghi, F. ^{[1
,4
]}

Tatsuno, H. ^{[8
]}

Tudorache, A. ^{[4
]}

Tudorache, V. ^{[4
]}

Doce, O. Vazquez ^{[1
]}

Widmann, E. ^{[5
]}

Zmeskal, J. ^{[5
]}

机构：

[1] Ist Nazl Fis Nucl, Lab Nazl Frascati, Rome, Italy

[2] Univ Victoria, Dep Phys & Astro, Victoria, BC, Canada

[3] Politecn Milan, Sez Elettron, I-20133 Milan, Italy

[4] IFIN HH, Bucharest, Romania

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

[6] Ist Nazl Fis Nucl, Sez Roma 1, Rome, Italy

[7] Inst Super Sanita, Rome, Italy

[8] Univ Tokyo, Tokyo, Japan

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

[10] Tech Univ Munich, Phys Dep, D-8046 Garching, Germany

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2011年 / 26卷 / 3-4期

关键词：

Kaonic atoms; X-ray spectroscopy; antikaon-nucleon/nucleus interaction; silicon drift detector; SILICON DRIFT DETECTORS;

D O I：

10.1142/S0217751X11051780

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 SIDDHARTA experiment aims a precise measurement of K-series kaonic hydrogen x-rays and the first-ever measurement of the kaonic deuterium x-rays to determine the strong-interaction energy-level shifts and widths of the lowest lying atomic states. These measurements offer a unique possibility to precisely determine the isospin-dependent kaon-nucleon (KN) scattering lengths [1] which are directly connected with the physics of the KN interaction. Kaonic Helium transitions to the 2p level (L-lines) were as well measured. The experiment has been performed at the DA Phi NE e(+)e(-) collider which produces the Phi-resonance. The resulting low energy negative charged kaons, coming from the Phi decay, are well suited to be stopped efficiently in a high density gas target for producing such kind of atoms. As x-ray detectors, we employed 144 Silicon Drift Detectors developed especially for this experiment, having good energy resolution of 140 eV FWHM at 6keV and time resolution of sub-micro seconds. The data taking was completed in November 2009. In this paper, an overview of this experiment and preliminary results are presented, together with future plans.

引用

页码：432 / 437

页数：6

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