Multiyear search for a diffuse flux of muon neutrinos with AMANDA-II

被引：106

作者：

Achterberg, A.

Ackermann, M.

Adams, J.

Ahrens, J.

Andeen, K.

Auffenberg, J.

Bai, X.

Baret, B.

Barwick, S. W.

Bay, R.

Beattie, K.

Becka, T.

Becker, J. K.

Becker, K.-H.

Berghaus, P.

Berley, D.

Bernardini, E.

Bertrand, D.

Besson, D. Z.

Blaufuss, E.

Boersma, D. J.

Bohm, C.

Bolmont, J.

Boeser, S.

Botner, O.

Bouchta, A.

Braun, J.

Burgess, T.

Castermans, T.

Chirkin, D.

Christy, B.

Clem, J.

Cowen, D. F.

D'Agostino, M. V.

Davour, A.

Day, C. T.

De Clercq, C.

Demirors, L.

Descamps, F.

Desiati, P.

DeYoung, T.

Diaz-Velez, J. C.

Dreyer, J.

Dumm, J. P.

Duvoort, M. R.

Edwards, W. R.

Ehrlich, R.

Eisch, J.

Ellsworth, R. W.

Evenson, P. A.

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[2] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany

[3] Univ Alaska Anchorage, Dept Phys & Astron, Anchorage, AK 99508 USA

[4] Clark Atlanta Univ, CTSPS, Atlanta, GA 30314 USA

[5] So Univ, Dept Phys, Baton Rouge, LA 70813 USA

[6] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[7] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[8] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[9] Univ Libre Bruxelles, Fac Sci, B-1050 Brussels, Belgium

[10] Vrije Univ Brussel VIB, Dienst ELEM, B-1050 Brussels, Belgium

[11] Chiba Univ, Dept Phys, Chiba 2638522, Japan

[12] Univ Canterbury, Dept Phys & Astron, Christchurch, New Zealand

[13] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[14] Univ Dortmund, Dept Phys, D-44221 Dortmund, Germany

[15] Univ Ghent, Dept Subatom & Radiat Phys, B-9000 Ghent, Belgium

[16] Max Planck Inst Kernphys, D-69177 Heidelberg, Germany

[17] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[18] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA

[19] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BW, England

[20] Univ Wisconsin, Dept Astron, Madison, WI 53706 USA

[21] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[22] Univ Mons, B-7000 Mons, Belgium

[23] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA

[24] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA

[25] Univ Oxford, Dept Phys, Oxford OX1 3NP, England

[26] Inst Adv Study, Princeton, NJ 08540 USA

[27] Univ Wisconsin, Dept Phys, River Falls, WI 54022 USA

[28] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden

[29] Penn State Univ, Dept Phys & Astron, University Pk, PA 16802 USA

[30] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[31] Uppsala Univ, Div High Energy Phys, S-75121 Uppsala, Sweden

[32] Univ Utrecht, Dept Phys & Astron, SRON, NL-3584 CC Utrecht, Netherlands

[33] Univ Gesamthsch Wuppertal, Dept Phys, D-42119 Wuppertal, Germany

[34] DESY, D-15735 Zeuthen, Germany

[35] Univ Valencia, CSIC, IFIC, Valencia 46071, Spain

[36] Kalmar Univ, Dept Chem & Biomed Sci, S-39182 Kalmar, Sweden

来源：

PHYSICAL REVIEW D | 2007年 / 76卷 / 04期

关键词：

D O I：

10.1103/PhysRevD.76.042008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search for TeV-PeV muon neutrinos from unresolved sources was performed on AMANDA-II data collected between 2000 and 2003 with an equivalent live time of 807 days. This diffuse analysis sought to find an extraterrestrial neutrino flux from sources with nonthermal components. The signal is expected to have a harder spectrum than the atmospheric muon and neutrino backgrounds. Since no excess of events was seen in the data over the expected background, an upper limit of E-2 Phi(90%C.L.)< 7.4x10(-8) GeV cm(-2) s(-1) sr(-1) is placed on the diffuse flux of muon neutrinos with a Phi proportional to E-2 spectrum in the energy range 16 TeV to 2.5 PeV. This is currently the most sensitive Phi proportional to E-2 diffuse astrophysical neutrino limit. We also set upper limits for astrophysical and prompt neutrino models, all of which have spectra different from Phi proportional to E-2.

引用

页数：20

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