Search for the decay KL→π0ν(ν)over-bar

被引：22
|
作者：
Adams, J [1 ]
Alavi-Harati, A
Albuquerque, IF
Alexopoulos, T
Arenton, M
Arisaka, K
Averitte, S
Barker, AR
Bellantoni, L
Bellavance, A
Belz, J
Ben-David, R
Bergman, DR
Blucher, E
Bock, GJ
Bown, C
Bright, S
Cheu, E
Childress, S
Coleman, R
Corcoran, MD
Corti, G
Cox, B
Crisler, MB
Erwin, AR
Field, S
Ford, R
Graham, G
Graham, J
Hagan, K
Halkiadakis, E
Hanagaki, K
Hazumi, M
Hidaka, S
Hsiung, YB
Jejer, V
Jennings, J
Jensen, DA
Johnson, PT
Kessler, R
Kobrak, HGE
LaDue, J
Lath, A
Ledovskoy, A
McManus, AP
Mikelsons, P
Mochida, S
Monnier, E
Nakaya, T
Nauenberg, U
机构：
[1] Univ Virginia, Dept Phys, Charlottesville, VA 22901 USA
[2] Univ Arizona, Tucson, AZ 85721 USA
[3] Univ Calif Los Angeles, Los Angeles, CA 90095 USA
[4] Univ Calif San Diego, La Jolla, CA 92093 USA
[5] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[6] Univ Colorado, Boulder, CO 80309 USA
[7] Elmhurst Coll, Elmhurst, IL 60126 USA
[8] Fermi Natl Accelerator Lab, Batavia, IL 60510 USA
[9] Osaka Univ, Toyonaka, Osaka 560, Japan
[10] Rice Univ, Houston, TX 77005 USA
[11] Rutgers State Univ, Piscataway, NJ 08855 USA
[12] Univ Virginia, Inst Nucl & Particle Phys, Charlottesville, VA 22901 USA
[13] Univ Wisconsin, Madison, WI 53706 USA
来源：
PHYSICS LETTERS B | 1999年 / 447卷 / 3-4期
基金：
日本学术振兴会; 美国国家科学基金会;
关键词：
D O I：
10.1016/S0370-2693(98)01593-7
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report on a search for the rare decay K-L --> pi(0)nu(nu)over-bar in the KTeV experiment at Fermilab. We searched for two-photon events whose kinematics were consistent with an isolated pi(o) coming from the decay K-L --> pi(0)nu(nu)over-bar. One candidate event was observed, which was consistent with the expected level of background. An upper limit on the branching ratio was determined to be B(K-L --> pi(o)nu(nu)over-bar) less-than 1.6 x 10(-6) at the 90% confidence level. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：240 / 245
页数：6
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