Speaker
Bikash Sinha
(Variable Energy Cyclotron Centre, Kolkata, India)
Description
Witten$^1$ and others$^2$ have argued that “small” supercooling leading to “little inflation” was the reality at the primordial era of cosmic phase transition from quarks to hadrons. This will necessarily shift the direction of the phase transition from a “cross over” to a first order phase transition.
Strange quark nuggets (SQM) with baryon number of $\sim$ $10^{44}$ as relics of this phase transition will survive$^2$ the entire cosmic time scale upto now. The presentation will demonstrate the SQM’s can be the most plausible candidate of cold dark matter discovered around 1996. The “MACHO” observations and the recent observations of strangelets of Bose Institute (Kolkata) seem to corroborate the just mentioned concept.
This is quite natural within the ambit of the standard model; exotica like axioms even WIMPS, not observed, do not have to be invoked.
[1] E. Witten, Phys Rev D 30 272 (1984);
E. Witten, Private Communication (2014)
[2] T. Boeckel, J. Schaffner- Bielch, Phys Rev Lett 105 041301 (2010);
B. Sinha, Int JMPA 29 1432004(2014)
| On behalf of collaboration: | NONE |
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Author
Bikash Sinha
(Variable Energy Cyclotron Centre, Kolkata, India)
