First Evidence for Direct CP Violation

First Evidence for Direct CP Violation
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DOI：
10.1016/0370-2693(88)91282-8
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发表时间：
1988-05
期刊：
Physics Letters B
影响因子：
4.4
通讯作者：
H. Burkhardt;P. Clarke;D. Coward;D. Cundy;N. Doble;L. Gatignon;V. Gibson;R. Hagelberg;G. Kesseler;J. Lans;I. Mannelli;T. Miczaika;A. Schaffer;J. Steinberger;H. Taureg;H. Wahl;C. Youngman;G. Dietrich;W. Heinen;R. Black;D. Candlin;J. Muir;K. Peach;B. Pijlgroms;I. Shipsey;W. Stephenson;H. Blümer;M. Kasemann;K. Kleinknecht;B. Panzer;B. Renk;É. Augé;R. Chase;M. Corti;D. Fournier;P. Heusse;L. Iconomidou-Fayard;A. Lutz;H. Sander;A. Bigi;M. Calvetti;R. Carosi;R. Casali;C. Cerri;G. Gargani;E. Massa;A. Nappi;G. Pierazzini;C. Becker;D. Heyland;M. Holder;G. Quast;M. Rost;W. Weihs;G. Zech
H. Burkhardt;P. Clarke;D. Coward;D. Cundy;N. Doble;L. Gatignon;V. Gibson;R. Hagelberg;G. Kesseler;J. Lans;I. Mannelli;T. Miczaika;A. Schaffer;J. Steinberger;H. Taureg;H. Wahl;C. Youngman;G. Dietrich;W. Heinen;R. Black;D. Candlin;J. Muir;K. Peach;B. Pijlgroms;I. Shipsey;W. Stephenson;H. Blümer;M. Kasemann;K. Kleinknecht;B. Panzer;B. Renk;É. Augé;R. Chase;M. Corti;D. Fournier;P. Heusse;L. Iconomidou-Fayard;A. Lutz;H. Sander;A. Bigi;M. Calvetti;R. Carosi;R. Casali;C. Cerri;G. Gargani;E. Massa;A. Nappi;G. Pierazzini;C. Becker;D. Heyland;M. Holder;G. Quast;M. Rost;W. Weihs;G. Zech
中科院分区：
物理与天体物理2区
文献类型：
--
作者：
H. Burkhardt;P. Clarke;D. Coward;D. Cundy;N. Doble;L. Gatignon;V. Gibson;R. Hagelberg;G. Kesseler;J. Lans;I. Mannelli;T. Miczaika;A. Schaffer;J. Steinberger;H. Taureg;H. Wahl;C. Youngman;G. Dietrich;W. Heinen;R. Black;D. Candlin;J. Muir;K. Peach;B. Pijlgroms;I. Shipsey;W. Stephenson;H. Blümer;M. Kasemann;K. Kleinknecht;B. Panzer;B. Renk;É. Augé;R. Chase;M. Corti;D. Fournier;P. Heusse;L. Iconomidou-Fayard;A. Lutz;H. Sander;A. Bigi;M. Calvetti;R. Carosi;R. Casali;C. Cerri;G. Gargani;E. Massa;A. Nappi;G. Pierazzini;C. Becker;D. Heyland;M. Holder;G. Quast;M. Rost;W. Weihs;G. Zech

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短寿命和长寿命的中性K介子衰变为两个带电和两个中性π介子的相对衰变率的双比值R被测量为0.980±0.004±0.005。在CP-奇K2跃迁到两个π介子时，R偏离CP破坏，其中π ′/π =（3.3 ± 1.1）×10−3。
The double ratio R of the relative decay rates of the short- and long-lived neutral kaons into two charged and two neutral pions was measured to be 0.980±0.004±0.005. The deviation of R from the CP violation in the transition of the CP-odd K2into two pions with ϵ′/ϵ=(3.3 ± 1.1)×10−3.