Abstract
We introduce leak-in dark matter, a novel out-of-equilibrium origin for the dark matter (DM) in the universe. We provide a comprehensive and unified discussion of a minimal, internally-thermalized, hidden sector populated from an out-of-equilibrium, feeble connection to the hotter standard model (SM) sector. We emphasize that when this out-of-equilibrium interaction is renormalizable, the colder sector undergoes an extended phase of non-adiabatic evolution largely independent of initial conditions, which we dub “leak-in.” We discuss the leak-in phase in generality, and establish the general properties of dark matter that freezes out from a radiation bath undergoing such a leak-in phase. As a concrete example, we consider a model where the SM has an out-of-equilibrium B − L vector portal interaction with a minimal hidden sector. We discuss the interplay between leak-in and freezein processes in this theory in detail and demonstrate regions where leak-in yields the full relic abundance. We study observational prospects for B − L vector portal leak-in DM, and find that despite the requisite small coupling to the SM, a variety of experiments can serve as sensitive probes of leak-in dark matter. Additionally, regions allowed by all current constraints yield DM with self-interactions large enough to address small-scale structure anomalies.
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References
E.W. Kolb, D. Seckel and M.S. Turner, The shadow world, Nature314 (1985) 415 [INSPIRE].
H.M. Hodges, Mirror baryons as the dark matter, Phys. Rev.D 47 (1993) 456 [INSPIRE].
M. Pospelov, A. Ritz and M.B. Voloshin, Secluded WIMP dark matter, Phys. Lett.B 662 (2008) 53 [arXiv:0711.4866] [INSPIRE].
J.L. Feng and J. Kumar, The WIMPless miracle: dark-matter particles without weak-scale masses or weak interactions, Phys. Rev. Lett.101 (2008) 231301 [arXiv:0803.4196] [INSPIRE].
J.L. Feng, H. Tu and H.-B. Yu, Thermal relics in hidden sectors, JCAP10 (2008) 043 [arXiv:0808.2318] [INSPIRE].
N. Arkani-Hamed, D.P. Finkbeiner, T.R. Slatyer and N. Weiner, A theory of dark matter, Phys. Rev.D 79 (2009) 015014 [arXiv:0810.0713] [INSPIRE].
J. Shelton and K.M. Zurek, Darkogenesis: a baryon asymmetry from the dark matter sector, Phys. Rev.D 82 (2010) 123512 [arXiv:1008.1997] [INSPIRE].
N. Haba and S. Matsumoto, Baryogenesis from dark sector, Prog. Theor. Phys.125 (2011) 1311 [arXiv:1008.2487] [INSPIRE].
M.R. Buckley and L. Randall, Xogenesis, JHEP09 (2011) 009 [arXiv:1009.0270] [INSPIRE].
A.E. Faraggi and M. Pospelov, Selfinteracting dark matter from the hidden heterotic string sector, Astropart. Phys.16 (2002) 451 [hep-ph/0008223] [INSPIRE].
J. McDonald, Thermally generated gauge singlet scalars as selfinteracting dark matter, Phys. Rev. Lett.88 (2002) 091304 [hep-ph/0106249] [INSPIRE].
L.J. Hall, K. Jedamzik, J. March-Russell and S.M. West, Freeze-in production of FIMP dark matter, JHEP03 (2010) 080 [arXiv:0911.1120] [INSPIRE].
Fermi-LAT collaboration, The Large Area Telescope on the Fermi Gamma-ray Space Telescope mission, Astrophys. J.697 (2009) 1071 [arXiv:0902.1089] [INSPIRE].
AMS collaboration, First result from the Alpha Magnetic Spectrometer on the International Space Station: precision measurement of the positron fraction in primary cosmic rays of 0.5–350 GeV, Phys. Rev. Lett.110 (2013) 141102 [INSPIRE].
K. Bernlöhr et al., The optical system of the HESS imaging atmospheric Cherenkov telescopes, Part 1: layout and components of the system, Astropart. Phys.20 (2003) 111 [astro-ph/0308246] [INSPIRE].
HAWC collaboration, Dark Matter Annihilation and decay searches with the High Altitude Water Cherenkov (HAWC) observatory, PoS (ICRC2015)1227 [arXiv:1508.04352] [INSPIRE].
CTA Consortium collaboration, Design concepts for the Cherenkov Telescope Array CTA: an advanced facility for ground-based high-energy gamma-ray astronomy, Exper. Astron.32 (2011) 193 [arXiv:1008.3703] [INSPIRE].
XENON collaboration, Dark Matter search results from a one ton-year exposure of XENON1T, Phys. Rev. Lett.121 (2018) 111302 [arXiv:1805.12562] [INSPIRE].
E. Hardy and R. Lasenby, Stellar cooling bounds on new light particles: plasma mixing effects, JHEP02 (2017) 033 [arXiv:1611.05852] [INSPIRE].
S. Tulin and H.-B. Yu, Dark matter self-interactions and small scale structure, Phys. Rept.730 (2018) 1 [arXiv:1705.02358] [INSPIRE].
J.A. Evans, S. Gori and J. Shelton, Looking for the WIMP next door, JHEP02 (2018) 100 [arXiv:1712.03974] [INSPIRE].
H. An, M. Pospelov and J. Pradler, New stellar constraints on dark photons, Phys. Lett.B 725 (2013) 190 [arXiv:1302.3884] [INSPIRE].
J. Redondo and G. Raffelt, Solar constraints on hidden photons re-visited, JCAP08 (2013) 034 [arXiv:1305.2920] [INSPIRE].
G. Krnjaic, Freezing in, heating up and freezing out: predictive nonthermal dark matter and low-mass direct detection, JHEP10 (2018) 136 [arXiv:1711.11038] [INSPIRE].
P. Adshead, Y. Cui and J. Shelton, Chilly dark sectors and asymmetric reheating, JHEP06 (2016) 016 [arXiv:1604.02458] [INSPIRE].
P. Adshead, P. Ralegankar and J. Shelton, Reheating in two-sector cosmology, JHEP08 (2019) 151 [arXiv:1906.02755] [INSPIRE].
C. Cheung, G. Elor, L.J. Hall and P. Kumar, Origins of hidden sector dark matter I: cosmology, JHEP03 (2011) 042 [arXiv:1010.0022] [INSPIRE].
X. Chu, T. Hambye and M.H.G. Tytgat, The four basic ways of creating dark matter through a portal, JCAP05 (2012) 034 [arXiv:1112.0493] [INSPIRE].
X. Chu, Y. Mambrini, J. Quevillon and B. Zaldivar, Thermal and non-thermal production of dark matter via Z′-portal(s), JCAP01 (2014) 034 [arXiv:1306.4677] [INSPIRE].
N. Bernal et al., Production regimes for self-interacting dark matter, JCAP03 (2016) 018 [arXiv:1510.08063] [INSPIRE].
M. Heikinheimo, T. Tenkanen and K. Tuominen, WIMP miracle of the second kind, Phys. Rev.D 96 (2017) 023001 [arXiv:1704.05359] [INSPIRE].
M. Duch, B. Grzadkowski and D. Huang, Strongly self-interacting vector dark matter via freeze-in, JHEP01 (2018) 020 [arXiv:1710.00320] [INSPIRE].
M. Heikinheimo, T. Tenkanen and K. Tuominen, Prospects for indirect detection of frozen-in dark matter, Phys. Rev.D 97 (2018) 063002 [arXiv:1801.03089] [INSPIRE].
S. Heeba, F. Kahlhoefer and P. Stöcker, Freeze-in production of decaying dark matter in five steps, JCAP11 (2018) 048 [arXiv:1809.04849] [INSPIRE].
J. Berger et al., Dark matter amnesia in out-of-equilibrium scenarios, JCAP02 (2019) 051 [arXiv:1812.08795] [INSPIRE].
L. Forestell and D.E. Morrissey, Infrared effects of ultraviolet operators on dark matter freeze-in, arXiv:1811.08905 [INSPIRE].
A. Davidson, B-L as the fourth color within an SU(2)L × U(1)R × U(1) model, Phys. Rev.D 20 (1979) 776 [INSPIRE].
R.E. Marshak and R.N. Mohapatra, Quark-lepton symmetry and B-L as the U(1) generator of the electroweak symmetry group, Phys. Lett.B 91 (1980) 222.
J. Heeck, Unbroken B-L symmetry, Phys. Lett.B 739 (2014) 256 [arXiv:1408.6845] [INSPIRE].
M. Bauer, P. Foldenauer and J. Jaeckel, Hunting all the hidden photons, JHEP07 (2018) 094 [arXiv:1803.05466] [INSPIRE].
E.C.G. Stueckelberg, Interaction forces in electrodynamics and in the field theory of nuclear forces, Helv. Phys. Acta11 (1938) 299 [INSPIRE].
D. Feldman, Z. Liu and P. Nath, The Stueckelberg Z′ extension with kinetic mixing and milli-charged dark matter from the hidden sector, Phys. Rev.D 75 (2007) 115001 [hep-ph/0702123] [INSPIRE].
A. Sommerfeld, Über die Beugung und Bremsung der Elektronen, Ann. Phys.403 (1931) 257.
J. Hisano, S. Matsumoto and M.M. Nojiri, Unitarity and higher order corrections in neutralino dark matter annihilation into two photons, Phys. Rev.D 67 (2003) 075014 [hep-ph/0212022] [INSPIRE].
J. Hisano, S. Matsumoto and M.M. Nojiri, Explosive dark matter annihilation, Phys. Rev. Lett.92 (2004) 031303 [hep-ph/0307216] [INSPIRE].
J. Hisano, S. Matsumoto, M.M. Nojiri and O. Saito, Non-perturbative effect on dark matter annihilation and gamma ray signature from galactic center, Phys. Rev.D 71 (2005) 063528 [hep-ph/0412403] [INSPIRE].
M. Cirelli, A. Strumia and M. Tamburini, Cosmology and astrophysics of minimal dark matter, Nucl. Phys.B 787 (2007) 152 [arXiv:0706.4071] [INSPIRE].
S. Tulin, H.-B. Yu and K.M. Zurek, Beyond collisionless dark matter: particle physics dynamics for dark matter halo structure, Phys. Rev.D 87 (2013) 115007 [arXiv:1302.3898] [INSPIRE].
S. Cassel, Sommerfeld factor for arbitrary partial wave processes, J. Phys.G 37 (2010) 105009 [arXiv:0903.5307] [INSPIRE].
Planck collaboration, Planck 2015 results. XIII. Cosmological parameters, Astron. Astrophys.594 (2016) A13 [arXiv:1502.01589] [INSPIRE].
T.R. Slatyer, Indirect dark matter signatures in the cosmic dark ages. I. Generalizing the bound on s-wave dark matter annihilation from Planck results, Phys. Rev.D 93 (2016) 023527 [arXiv:1506.03811] [INSPIRE].
M.S. Madhavacheril, N. Sehgal and T.R. Slatyer, Current dark matter annihilation constraints from CMB and low-redshift data, Phys. Rev.D 89 (2014) 103508 [arXiv:1310.3815] [INSPIRE].
G. Elor, N.L. Rodd, T.R. Slatyer and W. Xue, Model-independent indirect detection constraints on hidden sector dark matter, JCAP06 (2016) 024 [arXiv:1511.08787] [INSPIRE].
Fermi-LAT, DES collaboration, Searching for dark matter annihilation in recently discovered Milky Way satellites with Fermi-LAT, Astrophys. J.834 (2017) 110 [arXiv:1611.03184] [INSPIRE].
DES collaboration, The dark energy survey, astro-ph/0510346 [INSPIRE].
Fermi-LAT collaboration, Searching for dark matter annihilation from Milky Way dwarf spheroidal galaxies with six years of Fermi Large Area Telescope data, Phys. Rev. Lett.115 (2015) 231301 [arXiv:1503.02641] [INSPIRE].
T. Sjöstrand et al., An introduction to PYTHIA 8.2, Comput. Phys. Commun.191 (2015) 159 [arXiv:1410.3012] [INSPIRE].
A. Burkert, The structure of dark matter halos in dwarf galaxies, IAU Symp.171 (1996) 175 [astro-ph/9504041] [INSPIRE].
S. Blais-Ouellette, P. Amram and C. Carignan, Accurate determination of the mass distribution in spiral galaxies. 2. Testing the shape of dark halos, Astron. J.121 (2001) 1952 [astro-ph/0006449] [INSPIRE].
A. Borriello and P. Salucci, The dark matter distribution in disk galaxies, Mon. Not. Roy. Astron. Soc.323 (2001) 285 [astro-ph/0001082] [INSPIRE].
W.J.G. de Blok, S.S. McGaugh and V.C. Rubin, High-resolution rotation curves of low surface brightness galaxies. II. Mass models, Astron. J.122 (2001) 2396 [INSPIRE].
R.A. Swaters, B.F. Madore, F.C. van den Bosch and M. Balcells, The central mass distribution in dwarf and low-surface brightness galaxies, Astrophys. J.583 (2003) 732 [astro-ph/0210152] [INSPIRE].
G. Gentile, P. Salucci, U. Klein, D. Vergani and P. Kalberla, The cored distribution of dark matter in spiral galaxies, Mon. Not. Roy. Astron. Soc.351 (2004) 903 [astro-ph/0403154] [INSPIRE].
G. Gentile, A. Burkert, P. Salucci, U. Klein and F. Walter, The dwarf galaxy DDO 47 as a dark matter laboratory: testing cusps hiding in triaxial halos, Astrophys. J. Lett.634 (2005) L145 [astro-ph/0506538] [INSPIRE].
S.-H. Oh et al., The central slope of dark matter cores in dwarf galaxies: simulations vs. THINGS, Astron. J.142 (2011) 24 [arXiv:1011.2777] [INSPIRE].
D.C. Rodrigues, A. del Popolo, V. Marra and P.L.C. de Oliveira, Evidence against cuspy dark matter haloes in large galaxies, Mon. Not. Roy. Astron. Soc.470 (2017) 2410 [arXiv:1701.02698] [INSPIRE].
S. Profumo, F.S. Queiroz and C.E. Yaguna, Extending Fermi-LAT and H.E.S.S. limits on Gamma-ray lines from dark matter annihilation, Mon. Not. Roy. Astron. Soc.461 (2016) 3976 [arXiv:1602.08501] [INSPIRE].
S. Profumo, F.S. Queiroz, J. Silk and C. Siqueira, Searching for secluded dark matter with H.E.S.S., Fermi-LAT and Planck, JCAP03 (2018) 010 [arXiv:1711.03133] [INSPIRE].
H.E.S.S. collaboration, Search for a Dark Matter annihilation signal from the Galactic Center halo with H.E.S.S, Phys. Rev. Lett.106 (2011) 161301 [arXiv:1103.3266] [INSPIRE].
W. Hofmann, Latest results from HESS and the progress of CTA, talk given at AMS days at CERN — The future of cosmic ray physics and latest results, April 15–17, CERN, Switzerland (2015).
H.E.S.S. collaboration, Dark matter search in the inner Galactic halo with H.E.S.S. I and H.E.S.S. II, PoS(ICRC2015)1208 [arXiv:1509.04123] [INSPIRE].
L.J. Chang, M. Lisanti and S. Mishra-Sharma, Search for dark matter annihilation in the Milky Way halo, Phys. Rev.D 98 (2018) 123004 [arXiv:1804.04132] [INSPIRE].
H. Silverwood, C. Weniger, P. Scott and G. Bertone, A realistic assessment of the CTA sensitivity to dark matter annihilation, JCAP03 (2015) 055 [arXiv:1408.4131] [INSPIRE].
R.H. Helm, Inelastic and elastic scattering of 187 MeV electrons from selected even-even nuclei, Phys. Rev.104 (1956) 1466 [INSPIRE].
J.D. Lewin and P.F. Smith, Review of mathematics, numerical factors and corrections for dark matter experiments based on elastic nuclear recoil, Astropart. Phys.6 (1996) 87 [INSPIRE].
J. Fan, M. Reece and L.-T. Wang, Non-relativistic effective theory of dark matter direct detection, JCAP11 (2010) 042 [arXiv:1008.1591] [INSPIRE].
K. Freese, M. Lisanti and C. Savage, Colloquium: annual modulation of dark matter, Rev. Mod. Phys.85 (2013) 1561 [arXiv:1209.3339] [INSPIRE].
DarkSide collaboration, Low-mass dark matter search with the DarkSide-50 experiment, Phys. Rev. Lett.121 (2018) 081307 [arXiv:1802.06994] [INSPIRE].
CRESST collaboration, First results from the CRESST-III low-mass dark matter program, Phys. Rev.D 100 (2019) 102002 [arXiv:1904.00498] [INSPIRE].
EDELWEISS collaboration, Searching for low-mass dark matter particles with a massive Ge bolometer operated above-ground, Phys. Rev.D 99 (2019) 082003 [arXiv:1901.03588] [INSPIRE].
SENSEI collaboration, SENSEI: direct-detection constraints on sub-GeV dark matter from a shallow underground run using a prototype skipper-CCD, Phys. Rev. Lett.122 (2019) 161801 [arXiv:1901.10478] [INSPIRE].
DAMIC collaboration, Constraints on light dark matter particles interacting with electrons from DAMIC at SNOLAB, Phys. Rev. Lett.123 (2019) 181802 [arXiv:1907.12628] [INSPIRE].
R. Essig, T. Volansky and T.-T. Yu, New constraints and prospects for sub-GeV dark matter scattering off electrons in Xenon, Phys. Rev.D 96 (2017) 043017 [arXiv:1703.00910] [INSPIRE].
SuperCDMS collaboration, First dark matter constraints from a SuperCDMS single-charge sensitive detector, Phys. Rev. Lett.121 (2018) 051301 [arXiv:1804.10697] [INSPIRE].
DarkSide collaboration, Constraints on Sub-GeV dark-matter-electron scattering from the DarkSide-50 experiment, Phys. Rev. Lett.121 (2018) 111303 [arXiv:1802.06998] [INSPIRE].
T. Emken, R. Essig, C. Kouvaris and M. Sholapurkar, Direct detection of strongly interacting sub-GeV dark matter via electron recoils, JCAP09 (2019) 070 [arXiv:1905.06348] [INSPIRE].
J.K. Hoskins, R.D. Newman, R. Spero and J. Schultz, Experimental tests of the gravitational inverse square law for mass separations from 2 cm to 105 cm, Phys. Rev.D 32 (1985) 3084 [INSPIRE].
D.J. Kapner et al., Tests of the gravitational inverse-square law below the dark-energy length scale, Phys. Rev. Lett.98 (2007) 021101 [hep-ph/0611184] [INSPIRE].
A.A. Geraci et al., Improved constraints on non-Newtonian forces at 10 microns, Phys. Rev.D 78 (2008) 022002 [arXiv:0802.2350] [INSPIRE].
A.O. Sushkov, W.J. Kim, D.A.R. Dalvit and S.K. Lamoreaux, New experimental limits on non-Newtonian forces in the micrometer range, Phys. Rev. Lett.107 (2011) 171101 [arXiv:1108.2547] [INSPIRE].
C. Boehm, M.J. Dolan and C. McCabe, A lower bound on the mass of cold thermal dark matter from Planck, JCAP08 (2013) 041 [arXiv:1303.6270] [INSPIRE].
S. Knapen, T. Lin and K.M. Zurek, Light dark matter: models and constraints, Phys. Rev.D 96 (2017) 115021 [arXiv:1709.07882] [INSPIRE].
J.H. Chang, R. Essig and S.D. McDermott, Revisiting Supernova 1987A constraints on dark photons, JHEP01 (2017) 107 [arXiv:1611.03864] [INSPIRE].
J.D. Bjorkenet al., Search for neutral metastable penetrating particles produced in the SLAC beam dump, Phys. Rev.D 38 (1988) 3375 [INSPIRE].
S. Andreas, C. Niebuhr and A. Ringwald, New limits on hidden photons from past electron beam dumps, Phys. Rev.D 86 (2012) 095019 [arXiv:1209.6083] [INSPIRE].
LSND collaboration, Evidence for muon-neutrino → electron-neutrino oscillations from pion decay in flight neutrinos, Phys. Rev.C 58 (1998) 2489 [nucl-ex/9706006] [INSPIRE].
R. Essig, R. Harnik, J. Kaplan and N. Toro, Discovering new light states at neutrino experiments, Phys. Rev.D 82 (2010) 113008 [arXiv:1008.0636] [INSPIRE].
W. DeRocco et al., Observable signatures of dark photons from supernovae, JHEP02 (2019) 171 [arXiv:1901.08596] [INSPIRE].
A. Fradette, M. Pospelov, J. Pradler and A. Ritz, Cosmological constraints on very dark photons, Phys. Rev.D 90 (2014) 035022 [arXiv:1407.0993] [INSPIRE].
H.H. Patel, Package-X 2.0: a Mathematica package for the analytic calculation of one-loop integrals, Comput. Phys. Commun.218 (2017) 66 [arXiv:1612.00009] [INSPIRE].
F.-Y. Cyr-Racine et al., ETHOS — An effective theory of structure formation: From dark particle physics to the matter distribution of the Universe, Phys. Rev.D 93 (2016) 123527 [arXiv:1512.05344] [INSPIRE].
M. Rocha et al., Cosmological simulations with self-interacting dark matter I: constant density cores and substructure, Mon. Not. Roy. Astron. Soc.430 (2013) 81 [arXiv:1208.3025] [INSPIRE].
J. Zavala, M. Vogelsberger and M.G. Walker, Constraining self-interacting dark matter with the Milky Way’s dwarf spheroidals, Mon. Not. Roy. Astron. Soc.431 (2013) L20 [arXiv:1211.6426] [INSPIRE].
M. Kaplinghat, S. Tulin and H.-B. Yu, Dark matter halos as particle colliders: unified solution to small-scale structure puzzles from dwarfs to clusters, Phys. Rev. Lett.116 (2016) 041302 [arXiv:1508.03339] [INSPIRE].
M. Vogelsberger, J. Zavala and A. Loeb, Subhaloes in self-interacting galactic dark matter haloes, Mon. Not. Roy. Astron. Soc.423 (2012) 3740 [arXiv:1201.5892].
O.D. Elbert et al., Core formation in dwarf haloes with self-interacting dark matter: no fine-tuning necessary, Mon. Not. Roy. Astron. Soc.453 (2015) 29 [arXiv:1412.1477] [INSPIRE].
D.A. Buote, T.E. Jeltema, C.R. Canizares and G.P. Garmire, Chandra evidence for a flattened, triaxial dark matter halo in the elliptical galaxy ngc 720, Astrophys. J.577 (2002) 183 [astro-ph/0205469] [INSPIRE].
J.L. Feng, M. Kaplinghat, H. Tu and H.-B. Yu, Hidden Charged Dark Matter, JCAP07 (2009) 004 [arXiv:0905.3039] [INSPIRE].
P. Agrawal, F.-Y. Cyr-Racine, L. Randall and J. Scholtz, Make dark matter charged again, JCAP05 (2017) 022 [arXiv:1610.04611] [INSPIRE].
T. Hambye, M.H.G. Tytgat, J. Vandecasteele and L. Vanderheyden, Dark matter from dark photons: a taxonomy of dark matter production, Phys. Rev.D 100 (2019) 095018 [arXiv:1908.09864] [INSPIRE].
S. Heeba and F. Kahlhoefer, Probing the freeze-in mechanism in dark matter models with U(1)′ gauge extensions, arXiv:1908.09834 [INSPIRE].
R.N. Mohapatra and N. Okada, Dark matter constraints on low mass and weakly coupled B-L gauge boson, arXiv:1908.11325 [INSPIRE].
R. Baier et al., The Landau-Pomeranchuk-Migdal effect in QED, Nucl. Phys.B 478 (1996) 577 [hep-ph/9604327] [INSPIRE].
S. Peigne and A.V. Smilga, Energy losses in a hot plasma revisited, Phys. Usp.52 (2009) 659 [arXiv:0810.5702].
K. Mukaida and M. Yamada, Thermalization process after inflation and effective potential of scalar field, JCAP02 (2016) 003 [arXiv:1506.07661] [INSPIRE].
M. Garny, A. Palessandro, M. Sandora and M.S. Sloth, Charged Planckian interacting dark matter, JCAP01 (2019) 021 [arXiv:1810.01428] [INSPIRE].
L.D. Landau and I. Pomeranchuk, Electron cascade process at very high-energies, Dokl. Akad. Nauk Ser. Fiz.92 (1953) 735.
A.B. Migdal, Bremsstrahlung and pair production in condensed media at high-energies, Phys. Rev.103 (1956) 1811 [INSPIRE].
P.B. Arnold, G.D. Moore and L.G. Yaffe, Effective kinetic theory for high temperature gauge theories, JHEP01 (2003) 030 [hep-ph/0209353] [INSPIRE].
A. Kurkela and G.D. Moore, Thermalization in weakly coupled nonabelian plasmas, JHEP12 (2011) 044 [arXiv:1107.5050] [INSPIRE].
P. Gondolo and G. Gelmini, Cosmic abundances of stable particles: Improved analysis, Nucl. Phys.B 360 (1991) 145 [INSPIRE].
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Evans, J.A., Gaidau, C. & Shelton, J. Leak-in dark matter. J. High Energ. Phys. 2020, 32 (2020). https://doi.org/10.1007/JHEP01(2020)032
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DOI: https://doi.org/10.1007/JHEP01(2020)032