利用IceCube/DeepCore在银河系中搜寻暗物质湮灭产生的全味中微子
高能天体物理现象
2016-10-04 v2 高能物理 - 实验
摘要
我们展示了首次 IceCube 搜索银河系中暗物质湮灭信号，使用全味中微子诱导的粒子簇射。该分析聚焦于 IceCube 的 DeepCore 子探测器，并利用周围的 IceCube 串作为否决区域，以选择 DeepCore 体积内的起始事件。我们使用了 IceCube 在 2011-2012 年以 86 串配置运行期间的 329 个存活日数据。未发现中微子超出，最终结果与被仅背景假设相容。从该零结果中，我们推导了速度平均自湮灭截面 < \sigma_A v > 的上限，针对质量范围从 30 GeV 到 10 TeV 的暗物质候选者，假设了尖核与平核两种暗物质晕轮廓。对于 200 GeV 到 10 TeV 的暗物质质量，结果改进了先前所有 IceCube 关于 < \sigma_A v > 的结果，达到 10^{-23} cm^3 s^{-1} 的水平，具体取决于所假设的湮灭通道，对应于尖化的 NFW 轮廓。该分析表明，尽管 IceCube 中级联的本征角分辨率比μ子径迹更差，全味搜索仍可与μ子通道搜索竞争。
引用
@article{arxiv.1606.00209,
title = {All-flavour Search for Neutrinos from Dark Matter Annihilations in the Milky Way with IceCube/DeepCore},
author = {IceCube collaboration and M. G. Aartsen and K. Abraham and M. Ackermann and J. Adams and J. A. Aguilar and M. Ahlers and M. Ahrens and D. Altmann and K. Andeen and T. Anderson and I. Ansseau and G. Anton and M. Archinger and C. Arguelles and T. C. Arlen and J. Auffenberg and S. Axani and X. Bai and S. W. Barwick and V. Baum and R. Bay and J. J. Beatty and J. Becker Tjus and K. -H. Becker and S. BenZvi and P. Berghaus and D. Berley and E. Bernardini and A. Bernhard and D. Z. Besson and G. Binder and D. Bindig and M. Bissok and E. Blaufuss and S. Blot and D. J. Boersma and C. Bohm and M. Börner and F. Bos and D. Bose and S. Böser and O. Botner and J. Braun and L. Brayeur and H. -P. Bretz and A. Burgman and J. Casey and M. Casier and E. Cheung and D. Chirkin and A. Christov and K. Clark and L. Classen and S. Coenders and G. H. Collin and J. M. Conrad and D. F. Cowen and A. H. Cruz Silva and J. Daughhetee and J. C. Davis and M. Day and J. P. A. M. de André and C. De Clercq and E. del Pino Rosendo and H. Dembinski and S. De Ridder and P. Desiati and K. D. de Vries and G. de Wasseige and M. de With and T. DeYoung and J. C. Díaz-Vélez and V. di Lorenzo and H. Dujmovic and J. P. Dumm and M. Dunkman and B. Eberhardt and T. Ehrhardt and B. Eichmann and S. Euler and P. A. Evenson and S. Fahey and A. R. Fazely and J. Feintzeig and J. Felde and K. Filimonov and C. Finley and S. Flis and C. -C. Fösig and A. Franckowiak and T. Fuchs and T. K. Gaisser and R. Gaior and J. Gallagher and L. Gerhardt and K. Ghorbani and W. Giang and L. Gladstone and M. Glagla and T. Glüsenkamp and A. Goldschmidt and G. Golup and J. G. Gonzalez and D. Góra and D. Grant and Z. Griffith and C. Haack and A. Haj Ismail and A. Hallgren and F. Halzen and E. Hansen and B. Hansmann and T. Hansmann and K. Hanson and D. Hebecker and D. Heereman and K. Helbing and R. Hellauer and S. Hickford and J. Hignight and G. C. Hill and K. D. Hoffman and R. Hoffmann and K. Holzapfel and A. 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Menne and G. Merino and T. Meures and S. Miarecki and E. Middell and L. Mohrmann and T. Montaruli and M. Moulai and R. Nahnhauer and U. Naumann and G. Neer and H. Niederhausen and S. C. Nowicki and D. R. Nygren and A. Obertacke Pollmann and A. Olivas and A. Omairat and A. O'Murchadha and T. Palczewski and H. Pandya and D. V. Pankova and Ö. Penek and J. A. Pepper and C. Pérez de los Heros and C. Pfendner and D. Pieloth and E. Pinat and J. Posselt and P. B. Price and G. T. Przybylski and M. Quinnan and C. Raab and L. Rädel and M. Rameez and K. Rawlins and R. Reimann and M. Relich and E. Resconi and W. Rhode and M. Richman and B. Riedel and S. Robertson and M. Rongen and C. Rott and T. Ruhe and D. Ryckbosch and D. Rysewyk and L. Sabbatini and S. E. Sanchez Herrera and A. Sandrock and J. Sandroos and S. Sarkar and K. Satalecka and M. Schimp and P. Schlunder and T. Schmidt and S. Schoenen and S. Schöneberg and A. Schönwald and L. Schumacher and D. Seckel and S. Seunarine and D. Soldin and M. Song and G. M. Spiczak and C. Spiering and M. Stahlberg and M. Stamatikos and T. Stanev and A. Stasik and A. Steuer and T. Stezelberger and R. G. Stokstad and A. Stößl and R. Ström and N. L. Strotjohann and G. W. Sullivan and M. Sutherland and H. Taavola and I. Taboada and J. Tatar and F. Tenholt and S. Ter-Antonyan and A. Terliuk and G. Tešić and S. Tilav and P. A. Toale and M. N. Tobin and S. Toscano and D. Tosi and M. Tselengidou and A. Turcati and E. Unger and M. Usner and S. Vallecorsa and J. Vandenbroucke and N. van Eijndhoven and S. Vanheule and M. van Rossem and J. van Santen and J. Veenkamp and M. Vehring and M. Voge and M. Vraeghe and C. Walck and A. Wallace and M. Wallraff and N. Wandkowsky and Ch. Weaver and C. Wendt and S. Westerhoff and B. J. Whelan and S. Wickmann and K. Wiebe and C. H. Wiebusch and L. Wille and D. R. Williams and L. Wills and H. Wissing and M. Wolf and T. R. Wood and E. Woolsey and K. Woschnagg and D. L. Xu and X. W. Xu and Y. Xu and J. P. Yanez and G. Yodh and S. Yoshida and M. Zoll},
journal= {arXiv preprint arXiv:1606.00209},
year = {2016}
}
备注
15 pages, 8 figures. Minor text changes. Matches version accepted by EPJC