Determination of the relative decay rate KS→πeν/KL→πeν

被引：6
|
作者：
Batley, J. R.
Kalmus, G. E.
Lazzeroni, C. [1 ]
Munday, D. J.
Patel, M.
Slater, M. W.
Wotton, S. A.
Arcidiacono, R.
Bocquet, G.
Ceccucci, A.
Cundy, D.
Doble, N.
Falaleev, V.
Gatignon, L.
Gonidec, A.
Grafstroem, P.
Kubischta, W.
Marchetto, F.
Mikulec, I.
Norton, A.
Panzer-Steindel, B.
Rubin, P.
Wahl, H.
Goudzovski, E.
Hristov, P.
Kekelidze, V.
Litov, L.
Madigozhin, D.
Molokanova, N.
Potrebenikov, Yu.
Stoynev, S.
Zinchenko, A.
Monnier, E.
Swallow, E.
Winston, R.
Sacco, R.
Walker, A.
Baldini, W.
Dalpiaz, P.
Frabetti, P. L.
Gianoli, A.
Martini, M.
Petrucci, F.
Scarpa, M.
Savrie, M.
Bizzeti, A.
Calvetti, M.
Collazuol, G.
Graziani, G.
Iacopini, E.
机构：
[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[2] CERN, CH-1211 Geneva, Switzerland
[3] Joint Nucl Res Inst, Dubna, Russia
[4] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60126 USA
[5] Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland
[6] Univ Ferrara, Dipartimento Fis, Sezione INFN, I-44100 Ferrara, Italy
[7] Univ Florence, Dipartimento Fis, Sezione INFN, I-50125 Florence, Italy
[8] Univ Mainz, Inst Phys, D-6500 Mainz, Germany
[9] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
[10] Univ Perugia, Dipartimento Fis, Sezione INFN, I-06100 Perugia, Italy
[11] Scuola Normale Super Pisa, Dipartimento Fis, Sezione INFN, I-56100 Pisa, Italy
[12] CEA Saclay, DSM DAPNIA, F-91191 Gif Sur Yvette, France
[13] Univ Siegen, Fachbereich Phys, D-57068 Siegen, Germany
[14] Univ Turin, Dipartimento Fis Sperimentale, Sezione INFN, I-10125 Turin, Italy
[15] Soltan Inst Nucl Studies, High Energy Phys Lab, PL-00681 Warsaw, Poland
[16] Inst Hochenergiephys, Osterreichische Akad Wissenschaften, A-10560 Vienna, Austria
[17] CNR, Ist Cosmogeofis, I-10133 Turin, Italy
[18] Univ Pisa, Dipartimento Fis, Sezione INFN, I-56100 Pisa, Italy
[19] Univ Turin, Sezione INFN, I-10125 Turin, Italy
[20] Inst Hochenergiephys, Osterreichische Akad Wissenschaften, A-1050 Vienna, Austria
[21] Univ Richmond, Richmond, VA 23173 USA
[22] Univ Ferrara, Dipartmento Fis, Sezione INFN, I-44100 Ferrara, Italy
[23] CERN, CH-1211 Geneva, Switzerland
[24] Univ Mediterrane, Ctr Phys Particules, CNRS, IN2P3, Marseille, France
[25] Univ Paris 11, CNRS, Lab Accelerateur Lineaire, IN2P3, F-91898 Orsay, France
[26] Univ Modena, Dipartimento Fis, I-41100 Modena, Italy
[27] Univ Urbino, Inst Fis, I-61029 Urbino, Italy
[28] Univ Bonn, Inst Phys, D-53113 Bonn, Germany
来源：
PHYSICS LETTERS B | 2007年 / 653卷 / 2-4期
关键词：
kaon decays; semileptonic decays; test of standard model;
D O I：
10.1016/j.physletb.2007.07.064
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The decay rate of K-S -> pi ev relative to the rate of K-L -> pi rev has been measured by the NA48 Collaboration in a neutral kaon beam originating from 400 GeV proton-Be interactions at the CERN SPS. The result is 0.993 +/- 0.026(stat) +/- 0.022(syst), compatible with I in agreement with the Standard Model prediction at tree level. It implies B R (K-S -> pi ev) = (7.05 +/- 0.18(stat) +/- 0.16(syst)) X 10(-4). (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：145 / 150
页数：6
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