Neutrino oscillation results from KARMEN

被引：36

作者：

Zeitnitz, B

Armbruster, B

Becker, M

Benen, A

Drexlin, G

Eberhard, V

Eitel, K

Gemmeke, H

Jannakos, T

Kleifges, M

Kleinfeller, J

Oehler, C

Plischke, P

Rapp, J

Reichenbacher, J

Schnurer, F

Steidl, M

Wolf, J

Bodmann, BA

Finckh, E

Haug, S

Hossl, J

Junger, P

Kretschmer, W

Stucken, I

Eichner, C

Maschuw, R

Ruf, C

Blair, IM

Edgington, JA

Seligmann, B

Booth, NE

机构：

[1] Univ Karlsruhe, Inst Expt Kernphys, Forschungszentrum Karlsruhe, Inst Kernphys 1, D-76021 Karlsruhe, Germany

[2] Univ Erlangen Nurnberg, Inst Phys, D-91058 Erlangen, Germany

[3] Univ Bonn, Inst Strahlen & Kernphys, D-53115 Bonn, Germany

[4] Univ London Queen Mary & Westfield Coll, Dept Phys, London E1 4NS, England

[5] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

来源：

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 40: NEUTRINOS IN ASTRO, PARTICLE AND NUCLEAR PHYSICS | 1998年 / 40卷

关键词：

D O I：

10.1016/S0146-6410(98)00023-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The neutrino experiment KARMEN is situated at the beam stop neutrino source ISIS. It provides nu(mu)'s, nu(e)'s and <(nu)over bar>(mu)'s in equal intensities from the pi(+)-mu(+)-decay at rest (DAR). The oscillation channels nu(mu) -->nu(e) and <(nu)over bar>(mu) --> <(nu)over bar>(e) are investigated in the appearance mode with a 56 t liquid scintillation calorimeter at a mean distance of 17.7 m from the nu-source. Analyses of experimental data from the measuring period 1990-1995 corresponding to 9122 C protons on target or 2.52 . 10(21) mu(+) DAR are presented. No evidence for oscillations could be found with KARMEN, resulting in 90% CL exclusion limits of sin(2)(2 theta) < 8.5 . 10(-3) (<(nu)over bar>(mu) --> <(nu)over bar>(e)) and sin(2)(2 theta) < 4.0 . 10(-2)(nu(mu) --> nu(e)) for Delta m(2) greater than or equal to 100 eV(2) in a simple 2 flavor description of nu-oscillations.

引用

页码：169 / 181

页数：13

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