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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:34 |
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Conference: Bucharest University Faculty of Physics 2007 Meeting
Section: Atomic and Molecular Physics; Astrophysics
Title:
Under water and seismic detection of strange matter
Authors:
A. A. Radu(1), T. Angelescu(2), D. Felea(1), M. Rujoiu(1)
Affiliation:
(1)Institute of Space Sciences, Bucharest - Magurele
(2)Department of Physics, University of Bucharest, Magurele
E-mail
aurelianradu@spacescience.ro
Keywords:
strange matter, radiation interaction with matter
Abstract:
Strange quark matter (SQM) is a hypothetical state of matter made of almost equal numbers of up, down and strange quarks (uds). It is predicted by theoretical considerations but so far has not been confirmed by experiments. This three-flavor quark matter can be stable or metastable for a wide range of QCD interaction parameters. If detected, SQM can play an important role in astrophysics and relativistic heavy-ion collisions. Nuclearites (SQM nuggets) moving into water could be detected because of the blackbody radiation emitted by the expanding cylindrical thermal shock wave. The acoustic detection of the SQM nuggets in water is also possible and discussed. The SQM lumps passing through Earth may cause seismic signals very different from the seismic signals caused by an earthquake or an underground nuclear explosion. A large number of seismic records have been searched for, more than ten years ago and two candidate events were selected. Making use of the new technology available now, the efforts should be resumed and a better statistics may allow a clear conclusion. The above two methods are discussed as complimentary means of investigation for the study of SQM lumps over a wide range of masses.
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