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A white paper on keV sterile neutrino dark matter.

Adhikari, R. and Agostini, M. and Ky, N.A. and Araki, T. and Archidiacono, M. and Bahr, M. and Baur, J. and Behrens, J. and Bezrukov, F. and Bhupal, Dev P.S. and Borah, D. and Boyarsky, A. and de Gouvea, A. and de S. Pires, C.A. and de Vega, H.J. and Dias, A.G. and Di, Bari, P. and Djurcic, Z. and Dolde, K. and Dorrer, H. and Durero, M. and Dragoun, O. and Drewes, M. and Drexlin, G. and Düllmann, C.E. and Eberhardt, K. and Eliseev, S. and Enss, C. and Evans, N.W. and Faessler, A. and Filianin, P. and Fischer, V. and Fleischmann, A. and Formaggio, J.A. and Franse, J. and Fraenkle, F.M. and Frenk, C.S. and Fuller, G. and Gastaldo, L. and Garzilli, A. and Giunti, C. and Glück, F. and Goodman, M.C. and Gonzalez-Garcia, M.C. and Gorbunov, D. and Hamann, J. and Hannen, V. and Hannestad, S. and Hansen, S.H. and Hassel, C. and Heeck, J. and Hofmann, F. and Houdy, T. and Huber, A. and Iakubovskyi, D. and Ianni, A. and Ibarra, A. and Jacobsson, R. and Jeltema, T. and Jochum, J. and Kempf, S. and Kieck, T. and Korzeczek, M. and Kornoukhov, V. and Lachenmaier, T. and Laine, M. and Langacker, P. and Lasserre, T. and Lesgourgues, J. and Lhuillier, D. and Li, Y.F. and Liao, W. and Long, A.W. and Maltoni, M. and Mangano, G. and Mavromatos, N.E. and Menci, N. and Merle, A. and Mertens, S. and Mirizzi, A. and Monreal, B. and Nozik, A. and Neronov, A. and Niro, V. and Novikov, Y. and Oberauer, L. and Otten, E. and Palanque-Delabrouille, N. and Pallavicini, M. and Pantuev, V.S. and Papastergis, E. and Parke, S. and Pascoli, S. and Pastor, S. and Patwardhan, A. and Pilaftsis, A. and Radford, D.C. and Ranitzsch, P.C.-O. and Rest, O. and Robinson, D.J. and Rodrigues da Silva, P.S. and Ruchayskiy, O. and Sanchez, N.G. and Sasaki, M. and Saviano, N. and Schneider, A. and Schneider, F. and Schwetz, T. and Schönert, S. and Scholl, S. and Shankar, F. and Shrock, R. and Steinbrink, N. and Strigari, L. and Suekane, F. and Suerfu, B. and Takahashi, R. and Van, N.T.H. and Tkachev, I. and Totzauer, M. and Tsai, Y. and Tully, C.G. and Valerius, K. and Valle, J.W.F. and Venos, D. and Viel, M. and Vivier, M. and Wang, M.Y. and Weinheimer, C. and Wendt, K. and Winslow, L. and Wolf, J. and Wurm, M. and Xing, Z. and Zhou, S. and Zuber, K. (2017) 'A white paper on keV sterile neutrino dark matter.', Journal of cosmology and astroparticle physics., 2017 (1). 025.


We present a comprehensive review of keV-scale sterile neutrino Dark Matter, collecting views and insights from all disciplines involved—cosmology, astrophysics, nuclear, and particle physics—in each case viewed from both theoretical and experimental/observational perspectives. After reviewing the role of active neutrinos in particle physics, astrophysics, and cosmology, we focus on sterile neutrinos in the context of the Dark Matter puzzle. Here, we first review the physics motivation for sterile neutrino Dark Matter, based on challenges and tensions in purely cold Dark Matter scenarios. We then round out the discussion by critically summarizing all known constraints on sterile neutrino Dark Matter arising from astrophysical observations, laboratory experiments, and theoretical considerations. In this context, we provide a balanced discourse on the possibly positive signal from X-ray observations. Another focus of the paper concerns the construction of particle physics models, aiming to explain how sterile neutrinos of keV-scale masses could arise in concrete settings beyond the Standard Model of elementary particle physics. The paper ends with an extensive review of current and future astrophysical and laboratory searches, highlighting new ideas and their experimental challenges, as well as future perspectives for the discovery of sterile neutrinos.

Item Type:Article
Full text:Publisher-imposed embargo until 13 January 2018.
(AM) Accepted Manuscript
First Live Deposit - 06 June 2017
File format - PDF
Publisher Web site:
Publisher statement:This is an author-created, un-copyedited version of an article published in Journal of cosmology and astroparticle physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/1475-7516/2017/01/025
Record Created:06 Jun 2017 13:58
Last Modified:06 Jun 2017 14:12

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