Kaonic hydrogen X-ray measurement in SIDDHARTA

被引:108
|
作者
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 ]
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 ,4 ]
Ponta, T. [4 ]
Rizzo, A. [1 ]
Vidal, A. Romero [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, Dept Phys & Astron, Victoria, BC, Canada
[3] Politecn Milan, Sez Elettron, I-20133 Milan, Italy
[4] Horia Hulubei Natl Inst Phys & Nucl Engn, Magurele, Romania
[5] Stefan Meyer Inst Subatomare Phys, Vienna, Austria
[6] Ist Nazl Fis Nucl, Sez Roma 1, Rome, Italy
[7] Ist Super Sanita, I-00161 Rome, Italy
[8] Univ Tokyo, Tokyo, Japan
[9] RIKEN, Inst Phys & Chem Res, Saitama, Japan
[10] Tech Univ Munich, Dept Phys, D-8046 Garching, Germany
关键词
Kaonic atoms; Low-energy QCD; Antikaon-nucleon physics; X-ray detection; CHIRAL DYNAMICS; LEVEL SHIFTS; STATES; SYSTEMS; NUCLEI; SEARCH; ATOMS;
D O I
10.1016/j.nuclphysa.2011.12.008
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
Kaonic hydrogen atoms provide a unique laboratory to probe the kaon-nucleon strong interaction at the energy threshold, allowing an investigation of the interplay between spontaneous and explicit chiral symmetry breaking in low-energy QCD. The SIDDHARTA Collaboration has measured the K-series X rays of kaonic hydrogen atoms at the DA Phi NE electron-positron collider of Laboratori Nazionali di Frascati, and has determined the most precise values of the strong-interaction induced shift and width of the 1s atomic energy level. This result provides vital constraints on the theoretical description of the low-energy (K) over barN interaction. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:88 / 97
页数:10
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