Search for a diffuse flux of astrophysical muon neutrinos with the IceCube 40-string detector

被引：95

作者：

Abbasi, R. ^{[1
]}

Abdou, Y. ^{[25
]}

Abu-Zayyad, T. ^{[36
]}

Adams, J. ^{[18
]}

Aguilar, J. A. ^{[1
]}

Ahlers, M. ^{[35
]}

Altmann, D. ^{[2
]}

Andeen, K. ^{[1
]}

Auffenberg, J. ^{[42
]}

Bai, X. ^{[33
,34
]}

Baker, M. ^{[1
]}

Barwick, S. W. ^{[27
]}

Bay, R. ^{[9
]}

Alba, J. L. Bazo ^{[45
]}

Beattie, K. ^{[10
]}

Beatty, J. J. ^{[20
,21
,22
]}

Bechet, S. ^{[15
]}

Becker, J. K. ^{[12
]}

Becker, K. -H. ^{[42
]}

Benabderrahmane, M. L. ^{[45
]}

BenZvi, S. ^{[1
]}

Berdermann, J. ^{[45
]}

Berghaus, P. ^{[33
,34
]}

Berley, D. ^{[19
]}

Bernardini, E. ^{[45
]}

Bertrand, D. ^{[15
]}

Besson, D. Z. ^{[29
]}

Bindig, D. ^{[42
]}

Bissok, M. ^{[2
]}

Blaufuss, E. ^{[19
]}

Blumenthal, J. ^{[2
]}

Boersma, D. J. ^{[2
]}

Bohm, C. ^{[37
,38
]}

Bose, D. ^{[16
]}

Boeser, S. ^{[13
]}

Botner, O. ^{[41
]}

Brown, A. M. ^{[18
]}

Buitink, S. ^{[10
]}

Caballero-Mora, K. S. ^{[40
]}

Carson, M. ^{[25
]}

Chirkin, D. ^{[1
]}

Christy, B. ^{[19
]}

Clem, J. ^{[33
,34
]}

Clevermann, F. ^{[23
]}

Cohen, S. ^{[28
]}

Colnard, C. ^{[26
]}

Cowen, D. F. ^{[39
,40
]}

D'Agostino, M. V. ^{[9
]}

Danninger, M. ^{[37
,38
]}

Daughhetee, J. ^{[6
,7
]}

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 Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA

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

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

[6] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA

[7] Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA

[8] Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA

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

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

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

[12] Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany

[13] Univ Bonn, Inst Phys 1, D-53115 Bonn, Germany

[14] Univ W Indies, Dept Phys, BB-11000 Bridgetown, Barbados

[15] Univ Libre Bruxelles, Sci Fac CP230, B-1050 Brussels, Belgium

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

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

[18] Univ Canterbury, Dept Phys & Astron, Christchurch 1, New Zealand

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

[20] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[21] Ohio State Univ, Ctr Cosmol & Astro Particle Phys, Columbus, OH 43210 USA

[22] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA

[23] TU Dortmund Univ, Dept Phys, D-44221 Dortmund, Germany

[24] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada

[25] Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium

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

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

[28] Ecole Polytech Fed Lausanne, High Energy Phys Lab, CH-1015 Lausanne, Switzerland

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

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

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

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

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

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

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

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

[37] Stockholm Univ, Oskar Klein Ctr, SE-10691 Stockholm, Sweden

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

[39] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

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

[41] Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden

[42] Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany

[43] Sezione Ist Nazl Fis Nucl, I-70124 Bari, Italy

[44] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[45] DESY, D-15735 Zeuthen, Germany

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 08期

基金：

美国国家科学基金会; 瑞士国家科学基金会; 瑞典研究理事会;

关键词：

HIGH-ENERGY NEUTRINOS; SELECTION; ICE;

D O I：

10.1103/PhysRevD.84.082001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The IceCube Neutrino Observatory is a 1 km(3) detector currently taking data at the South Pole. One of the main strategies used to look for astrophysical neutrinos with IceCube is the search for a diffuse flux of high-energy neutrinos from unresolved sources. A hard energy spectrum of neutrinos from isotropically distributed astrophysical sources could manifest itself as a detectable signal that may be differentiated from the atmospheric neutrino background by spectral measurement. This analysis uses data from the IceCube detector collected in its half completed configuration which operated between April 2008 and May 2009 to search for a diffuse flux of astrophysical muon neutrinos. A total of 12 877 upward-going candidate neutrino events have been selected for this analysis. No evidence for a diffuse flux of astrophysical muon neutrinos was found in the data set leading to a 90% C. L. upper limit on the normalization of an E-2 astrophysical nu(mu) flux of 8.9 x 10(-9) GeV cm(-2) s(-1) sr(-1). The analysis is sensitive in the energy range between 35 TeV and 7 PeV. The 12 877 candidate neutrino events are consistent with atmospheric muon neutrinos measured from 332 GeV to 84 TeV and no evidence for a prompt component to the atmospheric neutrino spectrum is found.

引用

页数：20

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