The search for neutrino oscillations (ν)over-barμ→(ν)over-bare with KARMEN

被引：53

作者：

Eitel, K ^{[1
]}

Zeitnitz, B ^{[1
]}

机构：

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

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1999年 / 77卷

关键词：

D O I：

10.1016/S0920-5632(99)00420-X

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The neutrino experiment KARMEN is situated at the beam stop neutrino source ISIS. It provides v(mu)'s, y(e)'s and (v) over bar(mu)'s in equal intensities from the pi(+) - mu(+)-decay at rest (DAR). The oscillation channel (v) over bar(mu) --> (v) over bar(e) is investigated in the appearance mode with a 56 t liquid scintillation calorimeter at a mean distance of 17.7 m from the v-source looking for p((v) over bar(e), e(+))n reactions. The cosmic induced background for this oscillation search could be reduced by a factor of 40 due to an additional veto counter installed in 1996. In the data collected through 1997 and 1998 no potential oscillation event was observed. Using a unified approach to small signals this leads to an upper limit for the mixing angle of sin(2)(2 Theta) < 1.3.10(-3) (90% CL) at large Delta m(2). The excluded area in (sin(2)(2 Theta), Delta m(2)) covers almost entirely the favored region defined by the LSND (v) over bar(mu) --> (v) over bar(e) evidence.

引用

页码：212 / 219

页数：8

共 12 条

[1] SEARCH FOR NEUTRINO OSCILLATIONS AT 15, 40 AND 95 METERS FROM A NUCLEAR-POWER-REACTOR AT BUGEY [J].

ACHKAR, B ;

ALEKSAN, R ;

AVENIER, M ;

BAGIEU, G ;

BOUCHEZ, J ;

BRISSOT, R ;

CAVAIGNAC, JF ;

COLLOT, J ;

COUSINOU, MC ;

CUSSONNEAU, JP ;

DECLAIS, Y ;

DUFOUR, Y ;

FAVIER, J ;

GARCIAZ, F ;

KAJFASZ, E ;

DEKERRET, H ;

KOANG, DH ;

LEFIEVRE, B ;

LESQUOY, E ;

MALLET, J ;

METREF, A ;

NAGY, E ;

PESSARD, H ;

PIERRE, F ;

OBOLENSKY, M ;

STUTZ, A ;

WUTHRICK, JP .

NUCLEAR PHYSICS B, 1995, 434 (03) :503-532

[2] Measurement of the energy spectrum of νe from muon decay and implications for the Lorentz structure of the weak interaction [J].

Armbruster, B ;

Blair, IM ;

Bodmann, BA ;

Booth, NE ;

Drexlin, G ;

Eberhard, V ;

Edgington, JA ;

Eichner, C ;

Eitel, K ;

Finckh, E ;

Gemmeke, H ;

Hossl, J ;

Jannakos, T ;

Junger, P ;

Kleifges, M ;

Kleinfeller, J ;

Kretschmer, W ;

Maschuw, R ;

Oehler, C ;

Plischke, P ;

Rapp, J ;

Ruf, C ;

Steidl, M ;

Stumm, O ;

Wolf, J ;

Zeitnitz, B .

PHYSICAL REVIEW LETTERS, 1998, 81 (03) :520-523

[3] New experimental limits on νe→ντ oscillations in 2-ν and 3-ν mixing schemes [J].

Armbruster, B ;

Blair, I ;

Bodmann, BA ;

Booth, NE ;

Drexlin, G ;

Eberhard, V ;

Edgington, JA ;

Eichner, C ;

Eitel, K ;

Finckh, E ;

Gemmeke, H ;

Hossl, J ;

Jannakos, T ;

Junger, P ;

Kleifges, M ;

Kleinfeller, J ;

Kretschmer, W ;

Maschuw, R ;

Oehler, C ;

Plischke, P ;

Rapp, J ;

Ruf, C ;

Steidl, M ;

Stumm, O ;

Wolf, J ;

Zeitnitz, B .

PHYSICAL REVIEW C, 1998, 57 (06) :3414-3424

[4] Evidence for neutrino oscillations from muon decay at rest [J].

Athanassopoulos, C ;

Auerbach, LB ;

Burman, RL ;

Cohen, I ;

Caldwell, DO ;

Dieterle, BD ;

Donahue, JB ;

Eisner, AM ;

Fazely, A ;

Federspiel, FJ ;

Garvey, GT ;

Gray, M ;

Gunasingha, RM ;

Imlay, R ;

Johnston, K ;

Kim, HJ ;

Louis, WC ;

Majkic, R ;

Margulies, J ;

McIlhany, K ;

Metcalf, W ;

Mills, GB ;

Reeder, RA ;

Sandberg, V ;

Smith, D ;

Stancu, I ;

Strossman, W ;

Tayloe, R ;

VanDalen, GJ ;

Vernon, W ;

Wadia, N ;

Waltz, J ;

Wang, YX ;

White, DH ;

Works, D ;

Xiao, Y ;

Yellin, S .

PHYSICAL REVIEW C, 1996, 54 (05) :2685-2708

[5] SEARCH FOR MUON-NEUTRINO OSCILLATIONS NU-MU-]NU-E (NU-BAR-MU-]NU-BAR-E) IN A WIDE-BAND NEUTRINO BEAM [J].

BORODOVSKY, L ;

CHI, CY ;

HO, Y ;

KONDAKIS, N ;

LEE, W ;

MECHALAKOS, J ;

RUBIN, B ;

SETO, R ;

STOUGHTON, C ;

TZANAKOS, G ;

BLUMENFELD, B ;

CHICHURA, L ;

KRIZMANIC, J ;

LINCKE, E ;

LUEKING, L ;

LYLE, W ;

PEVSNER, A ;

HOGAN, WP ;

OBRIEN, E ;

REARDON, K ;

SHELDON, PD ;

SULLIVAN, GW .

PHYSICAL REVIEW LETTERS, 1992, 68 (03) :274-277

[6] Neutrino flux calculations for the ISIS spallation neutron facility [J].

Burman, RL ;

Dodd, AC ;

Plischke, P .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 368 (02) :416-424

[7] Review of Particle Physics [J].

The European Physical Journal C - Particles and Fields, 1998, 3 (1-4) :1-783

[8] KARMEN upgrade and prospects at ESS [J].

Drexlin, G .

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 40: NEUTRINOS IN ASTRO, PARTICLE AND NUCLEAR PHYSICS, 1998, 40 :193-202

[9] Unified approach to the classical statistical analysis of small signals [J].

Feldman, GJ ;

Cousins, RD .

PHYSICAL REVIEW D, 1998, 57 (07) :3873-3889

[10] Neutrino spectroscopy with KARMEN [J].

Maschuw, R .

PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 40: NEUTRINOS IN ASTRO, PARTICLE AND NUCLEAR PHYSICS, 1998, 40 :183-192

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