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
收藏
页码:432 / 437
页数:6
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