\begin{document}$ \langle\sigma v\rangle \leq 10^{-28}\,{{\rm{cm}}}^{3}\,{{\rm{s}}}^{-1} $\end{document} and \begin{document}$ \tau\ge10^{28}\, \rm{s} $\end{document} for \begin{document}$ 10\; {{\rm{GeV}}} $\end{document} DM particles. It can also probe PBHs with masses of \begin{document}$ 10^{16}\,{{\rm{g}}} $\end{document} and abundances of \begin{document}$ f_{{{\rm{PBH}}}} \leq 10^{-6} $\end{document}. These results indicate that the SKA can place constraints on DM annihilation, decay, and PBH Hawking radiation that are up to two to three orders of magnitude stronger than current limits. Furthermore, the SKA is expected to exceed existing bounds on sub-GeV DM and probe Hawking radiation from PBHs with masses above \begin{document}$ 10^{17}\,{{\rm{g}}} $\end{document}, which are otherwise inaccessible using conventional cosmological probes. Overall, the SKA holds significant promise for advancing our understanding of both DM particles and PBHs, potentially offering new insights into the fundamental nature of DM."> Prospects for probing dark matter particles and primordial black holes with the Square Kilometre Array using the 21 cm power spectrum at cosmic dawn -
  • [1]

    S. Navaset al. (Particle Data Group), Phys. Rev. D110, 030001 (2024)

  • [2]

    V. A. Rubakov, CERN Yellow Rep. School Proc.5, 129 (2022), arXiv: 1912.04727

  • [3]

    G. Bertone and D. Hooper, Rev. Mod. Phys.90, 045002 (2018), arXiv: 1605.04909

  • [4]

    H. Liu,Dark Matter Energy Deposition and Production from the Table-Top to the Cosmos, Ph. D. Thesis (Cambridge: MIT, 2019), arXiv: 1907.04324

  • [5]

    X. L. Chen and M. Kamionkowski, Phys. Rev. D70, 043502 (2004), arXiv: astro-ph/0310473

  • [6]

    C. R. Thorpe-Morgan,Astrophysical Frontiers: The Indirect Detection of Dark Matter & the Analysis of Gamma-ray Binary Systems, Ph. D. Thesis (Tubingen: Universität Tübingen, 2024)

  • [7]

    J. M. Gaskins, Contemp. Phys.57, 496 (2016), arXiv: 1604.00014

  • [8]

    G. Bertone, D. Hooper and J. Silk, Phys. Rept.405, 279 (2005), arXiv: hep-ph/0404175

  • [9]

    S. Hawking, Mon. Not. Roy. Astron. Soc.152, 75 (1971)

  • [10]

    X. P. Wang, M. Sasaki, and Y. l. Zhang, arXiv: 2505.09337

  • [11]

    E. J. Barroso, L. F. Demétrio, S. D. P. Vitentiet al., JCAP01, 052 (2025), arXiv: 2405.00207

  • [12]

    B. Carr and F. Kuhnel, SciPost Phys. Lect. Notes48, 1 (2022), arXiv: 2110.02821

  • [13]

    B. J. Carr, K. Kohri, Y. Sendoudaet al., Phys. Rev. D81, 104019 (2010), arXiv: 0912.5297

  • [14]

    C. Zhang and X. Zhang, JHEP10, 037 (2023), arXiv: 2302.07002

  • [15]

    C. Zhang and X. Zhang, Eur. Phys. J. C84, 100 (2024), arXiv: 2308.07166

  • [16]

    N. Jia, S. S. Bao, C. Zhanget al., JHEP09, 195 (2025)

  • [17]

    V. Mohapatra, Phys. Dark Univ.50, 102145 (2025), arXiv: 2506.20648

  • [18]

    Y. Shao, T. Y. Sun, M. L. Zhaoet al., Phys. Rev. D112, 063513 (2025)

  • [19]

    T. Y. Sun, Y. Shao, Y. Liet al., Commun. Phys.8, 220 (2025), arXiv: 2407.14298

  • [20]

    A. J. Nishizawa, P. K. Natwariya and K. Kadota, Phys. Rev. D111, 083546 (2025), arXiv: 2410.04755

  • [21]

    M. L. Zhao, S. Wang, and X. Zhang, JCAP07, 039 (2025), arXiv: 2412.19257

  • [22]

    Y. Shao, Y. Xu, Y. Wanget al., Nature Astron.7, 1116 (2023), arXiv: 2307.04130

  • [23]

    N. Hiroshima, K. Kohri, T. Sekiguchiet al., Phys. Rev. D104, 083547 (2021), arXiv: 2103.14810

  • [24]

    A. K. Saha and R. Laha, Phys. Rev. D105, 103026 (2022), arXiv: 2112.10794

  • [25]

    J. S. Cang, Y. Gao, and Y. Z. Ma, JCAP03, 012 (2022), arXiv: 2108.13256

  • [26]

    O. Mena, S. Palomares-Ruiz, P. Villanueva-Domingoet al., Phys. Rev. D100, 043540 (2019), arXiv: 1906.07735

  • [27]

    L. Lopez-Honorez, O. Mena, Á. Molinéet al., JCAP08, 004 (2016), arXiv: 1603.06795

  • [28]

    C. Xu, W. Qin, and T. R. Slatyer, Phys. Rev. D110, 123529 (2024), arXiv: 2408.13305

  • [29]

    F. Capozzi, R. Z. Ferreira, L. Lopez-Honorezet al., JCAP06, 060 (2023), arXiv: 2303.07426

  • [30]

    Z. X. Zhang, Y. M. Wang, J. Canget al., JCAP10, 002 (2023), arXiv: 2304.07793

  • [31]

    S. K. Acharya and R. Khatri, JCAP06, 018 (2020), arXiv: 2002.00898

  • [32]

    J. Chluba, A. Ravenni, and S.K. Acharya, Mon. Not. Roy. Astron. Soc.498, 959 (2020), arXiv: 2005.11325

  • [33]

    N. Aghanimet al. (Planck Collaboration), Astron. Astrophys.641, A6 (2020), arXiv: 1807.06209

  • [34]

    S. Clark, B. Dutta, Y. Gaoet al., Phys. Rev. D95, 083006 (2017), arXiv: 1612.07738

  • [35]

    M. Kawasaki, K. Kohri, T. Moroiet al., Phys. Lett. B751, 246 (2015), arXiv: 1509.03665

  • [36]

    L. Lopez-Honorez, O. Mena, S. Palomares-Ruizet al., JCAP07, 046 (2013), arXiv: 1303.5094

  • [37]

    T. R. Slatyer, N. Padmanabhan, and D. P. Finkbeiner, Phys. Rev. D80, 043526 (2009), arXiv: 0906.1197

  • [38]

    Z. Caoet al. (LHAASO Collaboration), arXiv: 2505.24586

  • [39]

    A. K. Saha, A. Singh, P. Parashariet al., Eur. Phys. J. C85, 1117 (2025), arXiv: 2409.10617

  • [40]

    C. Yang, S. Wang, M. L. Zhaoet al., JCAP10, 083 (2024), arXiv: 2408.10897

  • [41]

    J. Koechler, PoSTAUP2023, 044 (2024), arXiv: 2309.10043

  • [42]

    F. Calore, A. Dekker, P. D. Serpicoet al., Mon. Not. Roy. Astron. Soc.520, 4167 (2023), arXiv: 2209.06299

  • [43]

    J.W. Foster, Y. Park, B.R. Safdi, Y. Soreq and W.L. Xu, Phys. Rev. D107, 103047 (2023), arXiv: 2212.07435

  • [44]

    N. Bernal, V. Muñoz-Albornoz, S. Palomares-Ruizet al., JCAP10, 068 (2022), arXiv: 2203.14979

  • [45]

    M. Cirelli, N. Fornengo, B. J. Kavanaghet al., Phys. Rev. D103, 063022 (2021), arXiv: 2007.11493

  • [46]

    S. Wang, D. M. Xia, X. Zhanget al., Phys. Rev. D103, 043010 (2021), arXiv: 2010.16053

  • [47]

    M. Boudaud and M. Cirelli, Phys. Rev. Lett.122, 041104 (2019), arXiv: 1807.03075

  • [48]

    M. Boudaud, T. Lacroix, M. Strefet al., Phys. Rev. D99, 061302 (2019), arXiv: 1810.01680

  • [49]

    H. Abdallaet al. (HESS Collaboration), JCAP11, 037 (2018), arXiv: 1810.00995

  • [50]

    M. L. Ahnenet al. (MAGIC Collaboration), JCAP03, 009 (2018), arXiv: 1712.03095

  • [51]

    S. Archambaultet al. (VERITAS Collaboration), Phys. Rev. D95, 082001 (2017), arXiv: 1703.04937

  • [52]

    M. Boudaud, J. Lavalle and P. Salati, Phys. Rev. Lett.119, 021103 (2017), arXiv: 1612.07698

  • [53]

    T. Cohen, K. Murase, N. L. Roddet al., Phys. Rev. Lett.119, 021102 (2017), arXiv: 1612.05638

  • [54]

    B. J. Carr, K. Kohri, Y. Sendoudaet al., Phys. Rev. D94, 044029 (2016), arXiv: 1604.05349

  • [55]

    M. Ackermannet al. (Fermi-LAT Collaboration), Phys. Rev. Lett.115, 231301 (2015), arXiv: 1503.02641

  • [56]

    A. Massari, E. Izaguirre, R. Essiget al., Phys. Rev. D91, 083539 (2015), arXiv: 1503.07169

  • [57]

    A. Abramowskiet al. (H.E.S.S. Collaboration), Phys. Rev. D90, 112012 (2014), arXiv: 1410.2589

  • [58]

    J. Aleksić, S. Ansoldi, L. A. Antonelliet al., JCAP02, 008 (2014), arXiv: 1312.1535

  • [59]

    R. Diamanti, L. Lopez-Honorez, O. Menaet al., JCAP02, 017 (2014), arXiv: 1308.2578

  • [60]

    R. Essig, E. Kuflik, S. D. McDermottet al., JHEP11, 193 (2013), arXiv: 1309.4091

  • [61]

    M. Cirelli, F. Iocco, and P. Panci, JCAP10, 009 (2009), arXiv: 0907.0719

  • [62]

    M. Kolopanis, J. C. Pober, D. C. Jacobset al., Mon. Not. Roy. Astron. Soc.521, 5120 (2023), arXiv: 2210.10885

  • [63]

    C. M. Trott, C. H. Jordan, S. Midgleyet al., Mon. Not. Roy. Astron. Soc.493, 4711 (2020), arXiv: 2002.02575

  • [64]

    F. G. Mertens, M. Mevius, L. V. E. Koopmanset al., Astron. Astrophys.698, A186 (2025), arXiv: 2503.05576

  • [65]

    B. K. Gehlot, F. G. Mertens, L.V. E. Koopmanset al., Mon. Not. Roy. Astron. Soc.488, 4271 (2019), arXiv: 1809.06661

  • [66]

    Z. Abdurashidovaet al. (HERA Collaboration), Astrophys. J.925, 221 (2022), arXiv: 2108.02263

  • [67]

    S. Gagnon-Hartman, J. E. Davies, and A. Mesinger, Astron. Astrophys.699, A131 (2025), arXiv: 2502.20447

  • [68]

    C. Bierlich, S. Chakraborty, N. Desaiet al., SciPost Phys. Codeb.2022, 8 (2022), arXiv: 2203.11601

  • [69]

    M. Cirelli, G. Corcella, A. Hektoret al., JCAP03, 051 (2011), arXiv: 1012.4515

  • [70]

    H. W. Liu, G.W. Ridgway, and T. R. Slatyer, Phys. Rev. D101, 023530 (2020), arXiv: 1904.09296

  • [71]

    T. R. Slatyer, Phys. Rev. D93, 023521 (2016), arXiv: 1506.03812

  • [72]

    T. R. Slatyer, Phys. Rev. D93, 023527 (2016), arXiv: 1506.03811

  • [73]

    T.R. Slatyer, Phys. Rev. D87, 123513 (2013), arXiv: 1211.0283

  • [74]

    J. Auffinger and A. Arbey, PoSTOOLS2020, 024 (2021), arXiv: 2012.12902

  • [75]

    G. Facchinetti, L. Lopez-Honorez, Y. Qinet al., JCAP01, 005 (2024), arXiv: 2308.16656

  • [76]

    J. R. Pritchard and A. Loeb, Rept. Prog. Phys.75, 086901 (2012), arXiv: 1109.6012

  • [77]

    S. Furlanetto, S. P. Oh, and F. Briggs, Phys. Rept.433, 181 (2006), arXiv: astro-ph/0608032

  • [78]

    A. Mesinger, S. Furlanetto, and R. Cen, Mon. Not. Roy. Astron. Soc.411, 955 (2011), arXiv: 1003.3878

  • [79]

    C. A. Mason, J. B. Muñoz, B. Greiget al., Mon. Not. Roy. Astron. Soc.524, 4711 (2023), arXiv: 2212.09797

  • [80]

    J. C. Pober, A. R. Parsons, D. R. DeBoeret al., Astron. J.145, 65 (2013), arXiv: 1210.2413

  • [81]

    O. Zahn, A. Mesinger, M. McQuinnet al., Mon. Not. Roy. Astron. Soc.414, 727 (2011), arXiv: 1003.3455

  • [82]

    R. Braun, A. Bonaldi, T. Bourkeet al., arXiv: 1912.12699

  • [83]

    M. Fréchet,Revue de l'Institut International de Statistique(1943), p.182.

  • [84]

    A. Mesinger, A. Ewall-Wice, and J. Hewitt, Mon. Not. Roy. Astron. Soc.439, 3262 (2014), arXiv: 1310.0465

  • [85]

    M. Chhabra and S. Bharadwaj, arXiv: 2508.19126

  • [86]

    S. S. Gill, S. Bharadwaj, K. M. A. Elahiet al., Astrophys. J.993, 56 (2025), arXiv: 2507.04964

  • [87]

    L. Noble, M. Kamran, S. Majumdaret al., JCAP10, 003 (2024), arXiv: 2406.03118

  • [88]

    K. N. Diao and Y. Mao, Astrophys. J.992, 173 (2025), arXiv: 2502.04246

  • [89]

    H. Shimabukuro, Y. Xu, and Y. Shao, Phys. Rev. D112, 063557 (2025), arXiv: 2504.14656

  • [90]

    X. Zhao, Y. Mao, S. Zuoet al., Astrophys. J.973, 41 (2024), arXiv: 2310.17602

  • [91]

    K. Diao, Z. Chen, X. Chenet al., Astrophys. J.974, 141 (2024), arXiv: 2406.20058

  • [92]

    Z. H. Li, Z. Cai, X. Wanget al., arXiv: 2506.12129

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