Strongly interacting dark matter: Self-interactions and keV lines

被引：80

作者：

Boddy, Kimberly K. ^{[1
]}

Feng, Jonathan L. ^{[2
,3
]}

Kaplinghat, Manoj ^{[2
]}

Shadmi, Yael ^{[4
]}

Tait, Timothy M. P. ^{[2
]}

机构：

[1] CALTECH, Walter Burke Inst Theoret Phys, Pasadena, CA 91125 USA

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

[3] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[4] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel

来源：

PHYSICAL REVIEW D | 2014年 / 90卷 / 09期

基金：

美国国家科学基金会;

关键词：

COSMOLOGICAL SIMULATIONS; SPECTRUM; MILKY;

D O I：

10.1103/PhysRevD.90.095016

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider a simple supersymmetric hidden sector: pure SU(N) gauge theory. Dark matter is made up of hidden glueballinos with mass m(X) and hidden glueballs with mass near the confinement scale Lambda. For m(X) similar to 1 TeV and Lambda similar to 100 MeV, the glueballinos freeze out with the correct relic density and self-interact through glueball exchange to resolve small-scale structure puzzles. An immediate consequence is that the glueballino spectrum has a hyperfine splitting of order Lambda(2)/m(X) similar to 10 keV. We show that the radiative decays of the excited state can explain the observed 3.5 keV x-ray line signal from clusters of galaxies, Andromeda, and the Milky Way.

引用

页数：6

共 45 条

[1] Planck 2013 results. XVI. Cosmological parameters [J].

Ade, P. A. R. ;

Aghanim, N. ;

Armitage-Caplan, C. ;

Arnaud, M. ;

Ashdown, M. ;

Atrio-Barandela, F. ;

Aumont, J. ;

Baccigalupi, C. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartlett, J. G. ;

Battaner, E. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bobin, J. ;

Bock, J. J. ;

Bonaldi, A. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Bridges, M. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cappellini, B. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chary, R. -R. ;

Chen, X. ;

Chiang, H. C. ;

Chiang, L. -Y ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. .

ASTRONOMY & ASTROPHYSICS, 2014, 571

[2] Composite inelastic dark matter [J].

Alves, Daniele S. M. ;

Behbahani, Siavosh R. ;

Schuster, Philip ;

Wacker, Jay G. .

PHYSICS LETTERS B, 2010, 692 (05) :323-326

[3] The cosmology of composite inelastic dark matter [J].

Alves, Daniele S. M. ;

Behbahani, Siavosh R. ;

Schuster, Philip ;

Wacker, Jay G. .

JOURNAL OF HIGH ENERGY PHYSICS, 2010, (06)

[4]

Anderson M.E., ARXIV14084115

[5]

[Anonymous], ARXIV14084388

[6] Scale of dark QCD [J].

Bai, Yang ;

Schwaller, Pedro .

PHYSICAL REVIEW D, 2014, 89 (06)

[7] Self-interacting dark matter from a non-Abelian hidden sector [J].

Boddy, Kimberly K. ;

Feng, Jonathan L. ;

Kaplinghat, Manoj ;

Tait, Tim M. P. .

PHYSICAL REVIEW D, 2014, 89 (11)

[8] Unidentified Line in X-Ray Spectra of the Andromeda Galaxy and Perseus Galaxy Cluster [J].

Boyarsky, A. ;

Ruchayskiy, O. ;

Iakubovskyi, D. ;

Franse, J. .

PHYSICAL REVIEW LETTERS, 2014, 113 (25)

[9]

Boyarsky A., ARXIV14082503

[10] DETECTION OF AN UNIDENTIFIED EMISSION LINE IN THE STACKED X-RAY SPECTRUM OF GALAXY CLUSTERS [J].

Bulbul, Esra ;

Markevitch, Maxim ;

Foster, Adam ;

Smith, Randall K. ;

Loewenstein, Michael ;

Randall, Scott W. .

ASTROPHYSICAL JOURNAL, 2014, 789 (01)

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