RT Journal Article T1 Brane-world dark matter A1 Ruiz Cembranos, José Alberto A1 Dobado González, Antonio A1 López Maroto, Antonio AB We show that, in the context of brane-world scenarios with low tension [tau]=f^4, massive brane fluctuations (branons) are natural dark matter candidates. We calculate the present abundances for both hot (warm) and cold branons in terms of the branon mass M and the tension scale f. The results are compared with the current experimental bounds on these parameters. We also study the prospects for their detection in direct search experiments and comment on their characteristic signals in the indirect ones. PB American Physical Society SN 0031-9007 YR 2003 FD 2003-07-20 LK https://hdl.handle.net/20.500.14352/50741 UL https://hdl.handle.net/20.500.14352/50741 LA eng NO [1] J. Binney and S. Tremaine, Galactic Dynamics.(Princeton University Press, Princeton, NJ, 1987).[2] Particle Data Group, K. Hagiwara et al., Phys. Rev. D 66, 010001 (2002).[3] D. N. Spergel et al., astro-ph/0302209.[4] K. Griest and M. Kamionkowski, Phys. Rep. 333, 167 (2000).[5] N. Arkani-Hamed, S. Dimopoulos, and G. Dvali, Phys. Lett. B 429, 263 (1998);N. Arkani-Hamed, S. Dimopoulos, and G. R. Dvali, Phys. Rev. D 59, 086004 (1999); I. Antoniadis, Phys. Lett. B 246, 377 (1990).[6] D. Langlois, in Proceedings of YITP Workshop: Braneworld: Dynamics of Space-time Boundary, Kyoto, Japan [Prog. Theor. Phys. Suppl. 148, 181 (2003)].[7] M. Bando et al., Phys. Rev. Lett. 83, 3601 1999); R. Sundrum, Phys. Rev. D 59, 085009 (1999).[8] A. Dobado and A. L. Maroto, Nucl. Phys. B592, 203 (2001).[9] J. Alcaraz, J. A. R. Cembranos, A. Dobado, and A. L. Maroto, Phys. Rev. D 67, 075010 (2003).[10] G. Dvali, Phys. Lett. B 459, 489 (1999); N. Arkani-Hamed et al., J. High-Energy Phys. 0012 (2000) 010.[11] H.-C. Cheng, J. L. Feng, and K.T. Matchev, Phys. Rev. Lett. 89, 211301 (2002); G. Servant and T.M. P. Tait, Nucl. Phys. B650, 391 (2003).[12] E.W. Kolb and M. S. Turner, The Early Universe (Addison-Wesley, Reading, MA, 1990); M. Srednicki, R. Watkins, and K. A. Olive, Nucl. Phys. B310, 693 (1988); P. Gondolo and G. Gelmini, Nucl. Phys. B 360, 145 (1991).[13] P. Colin,V. Avila-Reese, and O.Valenzuela, Astrophys. J. 542, 622 (2000).[14] N. J.T. Smith, at the 4th International Workshop on the Identification of Dark Matter, IDM2002,York, UK, 2002.[15] R. Bernabei et al., Phys. Lett. B 480, 23 (2000).[16] A. Benoit et al., Phys. Lett. B 545, 43 (2002).[17] M. Altmann et al., astro-ph/0106314.[18] A. Morales et al., Phys. Lett. B 532, 8 (2002).[19] R.W. Schnee et al., Phys. Rep. 307, 283 (1998).[20] H. Wang, at the 5th International UCLA Symposium DM2002, Marina del Rey, 2002.[21] L. Baudis et al., Phys. Rep. 307, 301 (1998).[22] R. Gaitskell and V. Mandic, http://dmtools.berkeley.edu.[23] J. Preskill, M. B.Wise, and F.Wilczek, Phys. Lett. B120, 127 (1983); J. A. Frieman and A. H. Jaffe, Phys. Rev. D 45, 2674 (1992). NO © 2003 The American Physical Society.This work has been partially supported by the DGICYT (Spain) under Projects No. FPA 2000-0956and No. BFM2000-1326. NO DGICYT (Spain) DS Docta Complutense RD 16 may 2024