Large Extra Dimension and Dark Matter Detection

Journal Article · Thu Jan 03 00:00:00 EST 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2836990· OSTI ID:21043513

Bo, Qin ^[1]; Starkman, Glenn D ^[2]; Silk, Joseph ^[3]

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1. National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012 (China)
2. Department of Physics, Case Western Reserve University, Cleveland, OH 44106-7079 (United States)
3. Astrophysics Department, University of Oxford, Oxford OX1 3RH (United Kingdom)

If our space has the large extra dimensions as proposed by Arkani-Hamed, Dimopoulos and Dvali (ADD), then gravity would start to deviate from Newtonian gravity and be greatly enhanced in sub-millimeter scales. Here we show that in the ADD scenario, gravity could play an important role (compared to the weak interaction) in the interactions between dark matter particles and the electron. We find that for typical WIMP dark matter, such dark matter-electron 'gravitational' scattering cross section may be much larger than the dark matter-nucleon cross section constrained by current dark matter experiments.

• OSTI ID: 21043513
• Journal Information: AIP Conference Proceedings, Vol. 966, Issue 1; Conference: 4. Italian-Sino workshop on relativistic astrophysics, Pescara (Italy), 20-28 Jul 2007; Other Information: DOI: 10.1063/1.2836990; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CROSS SECTIONS
ELECTRONS
GRAVITATION
NONLUMINOUS MATTER
NUCLEONS
PARTICLE IDENTIFICATION
QUANTUM GRAVITY
RADIATION DETECTION
WEAK INTERACTIONS