Phys. Rev. D 79, 083532 (2009) [13 pages]
Nonthermal dark matter from cosmic strings
Abstract
References (58)
Citing Articles
Yanou Cui1,2 and David E. Morrissey11Michigan Center for Theoretical Physics (MCTP), Physics Department, University of Michigan, Ann Arbor, Michigan 48109, USA
2Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106-4030, USA
Received 19 August 2008; published 29 April 2009
Cosmic strings can be created in the early universe during symmetry-breaking phase transitions, such as might arise if the gauge structure of the standard model is extended by additional U(1) factors at high energies. Cosmic strings presented in the early universe form a network of long horizon-length segments, as well as a population of closed string loops. The closed loops are unstable against decay, and can be a source of nonthermal particle production. In this work we compute the density of weakly-interacting massive particle dark matter formed by the decay of gauge theory cosmic string loops derived from a network of long strings in the scaling regime or under the influence of frictional forces. We find that for symmetry-breaking scales larger than 1010 GeV, this mechanism has the potential to account for the observed relic density of dark matter. For symmetry-breaking scales lower than this, the density of dark matter created by loop decays from a scaling string network lies below the observed value. In particular, the cosmic strings originating from a U(1) gauge symmetry broken near the electroweak scale, that could lead to a massive Z[prime] gauge boson observable at the LHC, produces a negligibly small dark matter relic density by this mechanism.
©2009 The American Physical Society
| URL: |
http://link.aps.org/doi/10.1103/PhysRevD.79.083532
|
| DOI: |
10.1103/PhysRevD.79.083532 |
| PACS: |
98.80.Cq;
95.35.+d
|
REFERENCES (58)
For access to fully linked references, you need to log in.
For access to fully linked references, you need to Log in.
- P. Langacker and J. Wang, Phys. Rev. D 58, 115010 (1998);
M. Cvetic and P. Langacker, Phys. Rev. D 54, 3570 (1996);
- P. Langacker, N. Polonsky, and J. Wang, Phys. Rev. D60, 115005 (1999);
D. Suematsu, Phys. Rev. D 59, 055017 (1999).
- P. Langacker and J. Wang, Phys. Rev. D 58, 115010 (1998);
S. F. King, S. Moretti, and R. Nevzorov, Phys. Rev. D 73, 035009 (2006);
- D. P. Bennett and F. R. Bouchet, Phys. Rev. Lett. 60, 257 (1988);
Phys. Rev. D 41, 2408 (1990).
- B. Allen and E. P. S. Shellard, Phys. Rev. Lett. 64, 119 (1990).
- C. J. A. Martins and E. P. S. Shellard, Phys. Rev. D 53, R575 (1996);
54, 2535 (1996);
65, 043514 (2002).
- G. R. Vincent, M. Hindmarsh, and M. Sakellariadou, Phys. Rev. D 56, 637 (1997);
G. Vincent, N. D. Antunes, and M. Hindmarsh, Phys. Rev. Lett. 80, 2277 (1998).
- V. Vanchurin, K. D. Olum, and A. Vilenkin, Phys. Rev. D 74, 063527 (2006).
- T. Appelquist, H. C. Cheng, and B. A. Dobrescu, Phys. Rev. D 64, 035002 (2001);
H. C. Cheng, J. L. Feng, and K. T. Matchev, Phys. Rev. Lett. 89, 211301 (2002);
F. Burnell and G. D. Kribs, Phys. Rev. D 73, 015001 (2006);
- J. Hubisz and P. Meade, Phys. Rev. D 71, 035016 (2005);
A. Birkedal, A. Noble, M. Perelstein, and A. Spray, Phys. Rev. D 74, 035002 (2006).
- S. Borsanyi and M. Hindmarsh, Phys. Rev. D 77, 045022 (2008);
- J. J. Blanco-Pillado and K. D. Olum, Phys. Rev. D 59, 063508 (1999);
K. D. Olum and J. J. Blanco-Pillado, Phys. Rev. D 60, 023503 (1999).
- T. Vachaspati and A. Vilenkin, Phys. Rev. D 31, 3052 (1985).
- D. Garfinkle and T. Vachaspati, Phys. Rev. D 36, 2229 (1987).
- J. M. Quashnock and D. N. Spergel, Phys. Rev. D 42, 2505 (1990).
- V. Vanchurin, K. Olum, and A. Vilenkin, Phys. Rev. D 72, 063514 (2005);
V. Vanchurin, K. D. Olum, and A. Vilenkin, Phys. Rev. D 74, 063527 (2006);
K. D. Olum and V. Vanchurin, Phys. Rev. D 75, 063521 (2007).
- C. J. A. Martins and E. P. S. Shellard, Phys. Rev. D 73, 043515 (2006).
- X. Siemens, K. D. Olum, and A. Vilenkin, Phys. Rev. D 66, 043501 (2002).
- J. Polchinski and J. V. Rocha, Phys. Rev. D 74, 083504 (2006);
75, 123503 (2007).
- J. V. Rocha, Phys. Rev. Lett. 100, 071601 (2008).
- F. Dubath, J. Polchinski, and J. V. Rocha, Phys. Rev. D 77, 123528 (2008).
- V. Vanchurin, Phys. Rev. D 77, 063532 (2008).
- Y. Cui, S. P. Martin, D. E. Morrissey, and J. D. Wells, Phys. Rev. D 77, 043528 (2008).
- T. Damour and A. Vilenkin, Phys. Rev. Lett. 78, 2288 (1997).
- T. Damour and A. Vilenkin, Phys. Rev. D 71, 063510 (2005).
- X. Siemens, V. Mandic, and J. Creighton, Phys. Rev. Lett. 98, 111101 (2007).
- M. Wyman, L. Pogosian, and I. Wasserman, Phys. Rev. D 72, 023513 (2005);
73, 089905(E) (2006).
- U. Seljak and A. Slosar, Phys. Rev. D 74, 063523 (2006).
- C. J. Hogan, Phys. Rev. D 74, 043526 (2006);
M. R. DePies and C. J. Hogan, Phys. Rev. D 75, 125006 (2007).
- A. Vilenkin, Phys. Rev. D 43, 1060 (1991).
- J. Garriga and M. Sakellariadou, Phys. Rev. D 48, 2502 (1993).
- M. G. Alford and F. Wilczek, Phys. Rev. Lett. 62, 1071 (1989).
- A. E. Everett, Phys. Rev. D 24, 858 (1981).
CITING ARTICLES
For access to citing articles, you need to log in.For access to citing articles, you need to Log in.
|
A new free weekly publication from APS
|
You are not logged in to this journal. Log in
| Subscription Information
View Cart
Download Citation
MyScitation
Print View