First measurement of the rate K0L→πμνγ

被引：5

作者：

Bender, M ^{[1
]}

Augustin, I

Holder, M

Schwarze, I

Ziolkowski, M

Fanti, V

Lai, A

Musa, L

Nappi, A

Setzu, MG

Moore, RW

Munday, DJ

Parker, MA

Takach, SF

White, TO

Barr, G

Bocquet, G

Bremer, J

Ceccucci, A

Cogan, J

Cundy, D

Doble, N

Fischer, G

Funk, W

Gatignon, L

Gianoli, A

Gonidec, A

Grafstrom, P

Kubischta, W

Marzulli, V

Kesseler, G

Matheys, JP

Norton, A

Palestini, S

Panzer-Steindel, B

Schinzel, D

Taureg, H

Velasco, M

Vossnack, O

Kekelidze, V

Kojevnikov, I

Potrebenikov, I

Tatichvili, G

Tkatchev, A

Bertolotto, L

Boyle, O

Hay, B

Mc Kay, NE

Oakland, G

Parsons, H

机构：

[1] Univ Gesamthsch Siegen, Fachbereich Phys, D-57068 Siegen, Germany

[2] Univ Cagliari, Dipartimento Fis, I-09100 Cagliari, Italy

[3] Ist Nazl Fis Nucl, Sez, I-09100 Cagliari, Italy

[4] Univ Cambridge, Dept Phys, Cavendish Lab, HEP, Cambridge CB3 OHE, England

[5] CERN, CH-1211 Geneva 23, Switzerland

[6] Joint Inst Nucl Res, Dubna, Russia

[7] Univ Edinburgh, Dept Phys, Edinburgh EH9 3JZ, Midlothian, Scotland

[8] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy

[9] Ist Nazl Fis Nucl, Sez, I-44100 Ferrara, Italy

[10] Univ Florence, Dipartimento Fis, I-50125 Florence, Italy

[11] Ist Nazl Fis Nucl, Sez, I-50125 Florence, Italy

[12] Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[13] Univ Paris Sud, IN2P3, Accelerateur Lineaire Lab, CNRS, F-91406 Orsay, France

[14] Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy

[15] Ist Nazl Fis Nucl, Sez, I-06100 Perugia, Italy

[16] Univ Pisa, Scuola Normale Super, Dipartimento Fis, I-56100 Pisa, Italy

[17] Ist Nazl Fis Nucl, Sez, I-56100 Pisa, Italy

[18] CEA Saclay, DSM, DAPNIA, F-91191 Gif Sur Yvette, France

[19] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy

[20] Ist Nazl Fis Nucl, Sez, I-10125 Turin, Italy

[21] CEA Saclay, DSM, DAPNIA, F-91191 Gif Sur Yvette, France

[22] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy

[23] Ist Nazl Fis Nucl, Sez, I-10125 Turin, Italy

[24] Austrian Acad Sci, Inst Hochenergiephys, A-1050 Vienna, Austria

[25] Univ Los Andes, Dept Fis, Merida 5101A, Venezuela

来源：

PHYSICS LETTERS B | 1998年 / 418卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(97)01432-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In a preliminary version of the NA48 experiment at the CERN SPS, in which an iron-scintillator sandwich calorimeter was used as a photon detector, the ratio of K-L --> pi mu nu gamma and K-L --> pi mu nu decays was measured. The branching ratio BR(K-L --> pi mu nu gamma,E-gamma*greater than or equal to 30 MeV)/(K-L --> pi mu nu) is found to be (2.08+/-0.17(-0.21)(+0.16)x10(-3), where the first error is statistical and the second systematic. The result is in agreement with theoretical predictions. (C) 1998 Elsevier Science B.V.

引用

页码：411 / 418

页数：8

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