Dark Atoms of the Universe: towards OHe nuclear physics
arXiv:1011.4586
Abstract
The nonbaryonic dark matter of the Universe is assumed to consist of new stable particles. A specific case is possible, when new stable particles bear ordinary electric charge and bind in heavy "atoms" by ordinary Coulomb interaction. Such possibility is severely restricted by the constraints on anomalous isotopes of light elements that form positively charged heavy species with ordinary electrons. The trouble is avoided, if stable particles with charge -2 are in excess over their antiparticles (with charge +2) and there are no stable particles with charges +1 and -1. Then primordial helium, formed in Big Bang Nucleosynthesis, captures all in neutral "atoms" of O-helium (OHe). Schrodinger equation for system of nucleus and OHe is considered and reduced to an equation of relative motion in a spherically symmetrical potential, formed by the Yukawa tail of nuclear scalar isoscalar attraction potential, acting on He beyond the nucleus, and dipole Coulomb repulsion between the nucleus and OHe at small distances between nuclear surfaces of He and nucleus. The values of coupling strength and mass of -meson, mediating scalar isoscalar nuclear potential, are rather uncertain. Within these uncertainties and in the approximation of rectangular potential wells and wall we find a range of these parameters, at which the sodium nuclei have a few keV binding energy with OHe. The result also strongly depend on the precise value of parameter that determines the size of nuclei. At nuclear parameters, reproducing DAMA results, OHe-nucleus bound states can exist only for intermediate nuclei, thus excluding direct comparison with these results in detectors, containing very light (e.g. ) and heavy nuclei (like Xe).
arXiv commentContribution to Proceedings of XIII Bled Workshop "What comes beyond the Standard Model?"
References in corpus (31)
- Dark Matter Candidates from Particle Physics and Methods of Detection
- The DAMA/LIBRA apparatus
- Mirror particles and mirror matter: 50 years of speculation and search
- Electromagnetic properties of dark matter: dipole moments and charge form factor
- Magnetic Inelastic Dark Matter
- Implications of CoGeNT and DAMA for Light WIMP Dark Matter
- A Consistent Dark Matter Interpretation For CoGeNT and DAMA/LIBRA
- A light scalar WIMP through the Higgs portal and CoGeNT
- Light composite Higgs and precision electroweak measurements on the Z resonance: An update
- XENON10/100 dark matter constraints in comparison with CoGeNT and DAMA: examining the Leff dependence
- Dark Moments and the DAMA-CoGeNT Puzzle
- Complex Scalar Dark Matter vis-à-vis CoGeNT, DAMA/LIBRA and XENON100
- Explaining the DAMA Signal with WIMPless Dark Matter
- Form Factor Dark Matter
- Luminous Dark Matter
- Direct Detection of Dark Matter Electromagnetic Dipole Moments
- Search for Dark Matter
- Impure Thoughts on Inelastic Dark Matter
- Testing the Dark Matter Interpretation of the DAMA/LIBRA Result with Super-Kamiokande
- A Simple Explanation for DAMA with Moderate Channeling
- Composite dark matter from stable charged constituents
- Stable matter of 4th generation: hidden in the Universe and close to detection?
- A Sinister Extension of the Standard Model to SU(3)XSU(2)XSU(2)XU(1)
- Tera-Leptons Shadows over Sinister Universe
- Proceedings to the 12th Workshop 'What Comes Beyond the Standard Models', Bled, July 14. - 24., 2009, Slovenia
- New symmetries in microphysics, new stable forms of matter around us
- Stable quarks of the 4th family?
- Parametrization of the Relativistic () Model for Nuclear Matter
- He experimentum crucis for Dark Matter puzzles
- Dark matter from stable charged particles?
- Low energy binding of composite dark matter with nuclei as a solution for the puzzles of dark matter searches