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arXiv 1108.0171astro-ph.HE
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IceCube对超新星低能中微子的灵敏度

IceCube Sensitivity for Low-Energy Neutrinos from Nearby Supernovae

IceCube Collaboration, R. Abbasi, Y. Abdou, T. Abu-Zayyad, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. M. Allen, D. Altmann, K. Andeen, J. Auffenberg, … 展开作者

IceCube Collaboration, R. Abbasi, Y. Abdou, T. Abu-Zayyad, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. M. Allen, D. Altmann, K. Andeen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, V. Baum, R. Bay, J. L. Bazo Alba, K. Beattie, J. J. Beatty, S. Bechet, J. K. Becker, K. -H. Becker, M. L. Benabderrahmane, S. BenZvi, J. Berdermann, P. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, D. Bindig, M. Bissok, E. Blaufuss, J. Blumenthal, D. J. Boersma, C. Bohm, D. Bose, S. Böser, O. Botner, A. M. Brown, S. Buitink, K. S. Caballero-Mora, M. Carson, D. Chirkin, B. Christy, F. Clevermann, S. Cohen, C. Colnard, D. F. Cowen, A. H. Cruz Silva, M. V. D'Agostino, M. Danninger, J. Daughhetee, J. C. Davis, C. De Clercq, T. Degner, L. Demirörs, F. Descamps, P. Desiati, G. de Vries-Uiterweerd, T. DeYoung, J. C. Diaz-Vélez, M. Dierckxsens, J. Dreyer, J. P. Dumm, M. Dunkman, J. Eisch, R. W. Ellsworth, O. Engdegård, S. Euler, P. A. Evenson, O. Fadiran, A. R. Fazely, A. Fedynitch, J. Feintzeig, T. Feusels, K. Filimonov, C. Finley, T. Fischer-Wasels, B. D. Fox, A. Franckowiak, R. Franke, T. K. Gaisser, J. Gallagher, L. Gerhardt, L. Gladstone, T. Glüsenkamp, A. Goldschmidt, J. A. Goodman, D. Góra, D. Grant, T. Griesel, A. Groß, S. Grullon, M. Gurtner, C. Ha, A. Haj Ismail, A. Hallgren, F. Halzen, K. Han, K. Hanson, D. Heinen, K. Helbing, R. Hellauer, S. Hickford, G. C. Hill, K. D. Hoffman, B. Hoffmann, A. Homeier, K. Hoshina, W. Huelsnitz, J. -P. Hülß, P. O. Hulth, K. Hultqvist, S. Hussain, A. Ishihara, E. Jakobi, J. Jacobsen, G. S. Japaridze, H. Johansson, K. -H. Kampert, A. Kappes, T. Karg, A. Karle, P. Kenny, J. Kiryluk, F. Kislat, S. R. Klein, H. Köhne, G. Kohnen, H. Kolanoski, L. Köpke, S. Kopper, D. J. Koskinen, M. Kowalski, T. Kowarik, M. Krasberg, G. Kroll, N. Kurahashi, T. Kuwabara, M. Labare, K. Laihem, H. Landsman, M. J. Larson, R. Lauer, J. Lünemann, J. Madsen, A. Marotta, R. Maruyama, K. Mase, H. S. Matis, K. Meagher, M. Merck, P. Mészáros, T. Meures, S. Miarecki, E. Middell, N. Milke, J. Miller, T. Montaruli, R. Morse, S. M. Movit, R. Nahnhauer, J. W. Nam, U. Naumann, D. R. Nygren, S. Odrowski, A. Olivas, M. Olivo, A. O'Murchadha, S. Panknin, L. Paul, C. Pérez de los Heros, J. Petrovic, A. Piegsa, D. Pieloth, R. Porrata, J. Posselt, P. B. Price, G. T. Przybylski, K. Rawlins, P. Redl, E. Resconi, W. Rhode, M. Ribordy, A. S. Richard, M. Richman, J. P. Rodrigues, F. Rothmaier, C. Rott, T. Ruhe, D. Rutledge, B. Ruzybayev, D. Ryckbosch, H. -G. Sander, M. Santander, S. Sarkar, K. Schatto, T. Schmidt, A. Schönwald, A. Schukraft, L. Schulte, A. Schultes, O. Schulz, M. Schunck, D. Seckel, B. Semburg, S. H. Seo, Y. Sestayo, S. Seunarine, A. Silvestri, K. Singh, A. Slipak, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, T. Stezelberger, R. G. Stokstad, A. Stößl, E. A. Strahler, R. Ström, M. Stüer, G. W. Sullivan, Q. Swillens, H. Taavola, I. Taboada, A. Tamburro, A. Tepe, S. Ter-Antonyan, S. Tilav, P. A. Toale, S. Toscano, D. Tosi, N. van Eijndhoven, J. Vandenbroucke, A. Van Overloop, J. van Santen, M. Vehring, M. Voge, C. Walck, T. Waldenmaier, M. Wallraff, M. Walter, Ch. Weaver, C. Wendt, S. Westerhoff, N. Whitehorn, K. Wiebe, C. H. Wiebusch, D. R. Williams, R. Wischnewski, H. Wissing, M. Wolf, T. R. Wood, K. Woschnagg, C. Xu, D. L. Xu, X. W. Xu, J. P. Yanez, G. Yodh, S. Yoshida, P. Zarzhitsky, M. Zoll

摘要:

本文描述了位于南极的冰立方中微子望远镜对附近大质量恒星核心坍缩产生的MeV中微子爆发的响应。IceCube于2010年12月完成,形成了一个由5160个光电倍增管组成的网格,用于监测南极冰层深处约1立方公里的粒子诱导光子。该望远镜被设计用于探测能量大于100 GeV的中微子。由于冰的温度低于冰点,光电倍增管的暗噪声率特别低。因此,冰立方也可以通过观察所有光电倍增管速率在暗噪声之上的集体上升来检测大量MeV中微子。IceCube具有2毫秒的时间分辨率,可以检测超新星中微子爆发时间发展的微妙特征。对于银河系中心的超新星,它的灵敏度与无背景的百万吨级超新星搜索实验相匹配。在银河系边缘(30千秒差距)的灵敏度降低到20个标准差,在大麦云云(50千秒差距)的灵敏度降低到6个标准差。冰立方正在向超新星预警系统发送潜在超新星的触发器。中微子的敏感性,如中微子的层次结构进行了讨论,以及检测的可能性,中子化爆发,短爆发的电子中微子释放的电子捕获后不久崩溃的质子。令人着迷的签名,如夸克星或黑洞的形成以及冲击波的特性,研究说明冰立方的超新星探测能力。

英文摘要:

This paper describes the response of the IceCube neutrino telescope located at the geographic South Pole to outbursts of MeV neutrinos from the core collapse of nearby massive stars. IceCube was completed in December 2010 forming a lattice of 5160 photomultiplier tubes that monitor a volume of ~ 1 cubic kilometer in the deep Antarctic ice for particle induced photons. The telescope was designed to detect neutrinos with energies greater than 100 GeV. Owing to subfreezing ice temperatures, the photomultiplier dark noise rates are particularly low. Hence IceCube can also detect large numbers of MeV neutrinos by observing a collective rise in all photomultiplier rates on top of the dark noise. With 2 ms timing resolution, IceCube can detect subtle features in the temporal development of the supernova neutrino burst. For a supernova at the galactic center, its sensitivity matches that of a background-free megaton-scale supernova search experiment. The sensitivity decreases to 20 standard deviations at the galactic edge (30 kpc) and 6 standard deviations at the Large Magellanic Cloud (50 kpc). IceCube is sending triggers from potential supernovae to the Supernova Early Warning System. The sensitivity to neutrino properties such as the neutrino hierarchy is discussed, as well as the possibility to detect the neutronization burst, a short outbreak of electron neutrinos released by electron capture on protons soon after collapse. Tantalizing signatures, such as the formation of a quark star or a black hole as well as the characteristics of shock waves, are investigated to illustrate IceCube's capability for supernova detection.

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