Registration of atmospheric neutrinos with the BAIKAL neutrino telescope NT-96

被引：54

作者：

Balkanov, VA

Belolaptikov, IA

Bezrukov, LB

Budnev, NM

Chensky, AG

Danilchenko, IA

Djilkibaev, ZAM

Domogatsky, GV

Doroshenko, AA

Fialkovsky, SV

Gaponenko, ON

Garus, AA

Gress, TI

Klabukov, AM

Klimov, AI

Klimushin, SI

Koshechkin, AP

Kulepov, VF

Kuzmichev, LA

Kuznetzov, VE

Laudinskaite, JJ

Lovtzov, SV

Lubsandorzhiev, BK

Milenin, MB

Mirgazov, RR

Moseiko, NI

Netikov, VA

Osipova, EA

Panfilov, AI

Parfenov, YV

Pavlov, AA

Pliskovsky, EN

Pokhil, PG

Popova, EG

Rozanov, MI

Rubtzov, VY

Sokalski, IA

Spiering, C

Streicher, O

Tarashansky, BA

Thon, T

Vasiljev, RV

Wischnewski, R

Yashin, IV

机构：

[1] Russian Acad Sci, Inst Nucl Res, Moscow, Russia

[2] Irkutsk State Univ, Irkutsk 664003, Russia

[3] Moscow MV Lomonosov State Univ, Moscow, Russia

[4] Nizhnii Novgorod State Tech Univ, Nizhnii Novgorod, Russia

[5] St Petersburg State Marine Tech Univ, St Petersburg, Russia

[6] IV Kurchatov Atom Energy Inst, Moscow 123182, Russia

[7] Joint Nucl Res Inst, Dubna 141980, Russia

[8] DESY, Zeuthen, Germany

来源：

ASTROPARTICLE PHYSICS | 1999年 / 12卷 / 1-2期

关键词：

D O I：

10.1016/S0927-6505(99)00078-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the first neutrino induced events observed with a deep underwater neutrino telescope. Data from 70 days effective life time of the BAIKAL prototype telescope NT-96 have been analyzed with two different methods. With the standard track reconstruction method, 9 clear upward muon candidates have been identified, in good agreement with 8.7 events expected from Monte Carlo calculations for atmospheric neutrinos. The second analysis is tailored to muons coming from close to the opposite zenith. It yields 4 events, compared to 3.5 from Monte Carlo expectations. From this we derive a 90% upper flux limit of 1.1.10(-13) cm(-2) sec(-1) for muons in excess of those expected from atmospheric neutrinos with zenith angle > 150 degrees and energy > 10 GeV. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：75 / 86

页数：12

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