Measurement of Atmospheric Neutrino Oscillations with IceCube

被引：50

作者：

Aartsen, M. G. ^{[2
]}

Abbasi, R. ^{[29
,30
]}

Abdou, Y. ^{[24
]}

Ackermann, M. ^{[47
]}

Adams, J. ^{[16
]}

Aguilar, J. A. ^{[23
]}

Ahlers, M. ^{[29
,30
]}

Altmann, D. ^{[10
]}

Auffenberg, J. ^{[29
,30
]}

Bai, X. ^{[34
,35
]}

Baker, M. ^{[29
,30
]}

Barwick, S. W. ^{[25
]}

Baum, V. ^{[31
]}

Bay, R. ^{[8
]}

Beatty, J. J. ^{[18
,19
,20
]}

Bechet, S. ^{[13
]}

Tjus, J. Becker ^{[11
]}

Becker, K. -H. ^{[46
]}

Bell, M. ^{[44
]}

Benabderrahmane, M. L. ^{[47
]}

BenZvi, S. ^{[29
,30
]}

Berdermann, J. ^{[47
]}

Berghaus, P. ^{[47
]}

Berley, D. ^{[17
]}

Bernardini, E. ^{[47
]}

Bernhard, A. ^{[24
,33
]}

Bertrand, D. ^{[13
]}

Besson, D. Z. ^{[27
]}

Binder, G. ^{[8
,9
]}

Bindig, D. ^{[46
]}

Bissok, M. ^{[1
]}

Blaufuss, E. ^{[17
]}

Blumenthal, J. ^{[1
]}

Boersma, D. J. ^{[45
]}

Bohaichuk, S. ^{[22
]}

Bohm, C. ^{[38
,39
]}

Bose, D. ^{[14
]}

Boeser, S. ^{[12
]}

Botner, O. ^{[45
]}

Brayeur, L. ^{[14
]}

Bretz, H. -P. ^{[47
]}

Brown, A. M. ^{[16
]}

Bruijn, R. ^{[26
]}

Brunner, J. ^{[47
]}

Carson, M. ^{[24
]}

Casey, J. ^{[5
,6
]}

Casier, M. ^{[14
]}

Chirkin, D. ^{[29
,30
]}

Christov, A. ^{[23
]}

Christy, B. ^{[17
]}

机构：

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

[2] Univ Adelaide, Sch Chem & Phys, Adelaide, SA 5005, Australia

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

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

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

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

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

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

[9] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

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

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

[12] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

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

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

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

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

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

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

[19] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA

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

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

[22] Univ Alberta, Dept Phys, Edmonton, AB T6G 2E1, Canada

[23] Univ Geneva, Dept Phys Nucl & Corpusculaire, CH-1211 Geneva, Switzerland

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

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

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

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

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

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

[30] Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI 53706 USA

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

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

[33] Tech Univ Munich, D-85748 Garching, Germany

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

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

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

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

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

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

[40] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[41] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea

[42] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA

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

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

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

[46] Berg Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany

[47] DESY, D-15735 Zeuthen, Germany

[48] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[49] Ist Nazl Fis Nucl, Dipartimento Fis, I-70126 Bari, Italy

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 08期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会; 瑞典研究理事会; 瑞士国家科学基金会; 澳大利亚研究理事会;

关键词：

PERFORMANCE; TELESCOPE; SYSTEM;

D O I：

10.1103/PhysRevLett.111.081801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first statistically significant detection of neutrino oscillations in the high-energy regime (> 20 GeV) from an analysis of IceCube Neutrino Observatory data collected in 2010 and 2011. This measurement is made possible by the low-energy threshold of the DeepCore detector (similar to 20 GeV) and benefits from the use of the IceCube detector as a veto against cosmic-ray-induced muon background. The oscillation signal was detected within a low-energy muon neutrino sample (20-100 GeV) extracted from data collected by DeepCore. A high-energy muon neutrino sample (100 GeV-10 TeV) was extracted from IceCube data to constrain systematic uncertainties. The disappearance of low-energy upward-going muon neutrinos was observed, and the nonoscillation hypothesis is rejected with more than 5 sigma significance. In a two-neutrino flavor formalism, our data are best described by the atmospheric neutrino oscillation parameters vertical bar Delta m(32)(2)vertical bar = (2.3(-0.5)(+0.6)) x 10(-3) eV(2) and sin(2) (2 theta(23)) > 0.93, and maximum mixing is favored.

引用

页数：6

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