TO: SEARCH FOR STRANGE QUARK MATTER IN EARTH BASED EXPERIMENTS
SESZIONE DI TORINO In 1984, it was conjuctered that Strange Quark Matter (SQM), composed of
approximately the same number of up, down and strange quarks, could be
the true ground state of quantum chromodynamics. SQM could be stable for
all baryon number ranging from ordinary heavy nuclei to neutron stars,
and is believed to be part of the cosmic radiation, either as a dark
matter component or as "anomalous" events.
A review of the properties of SQM nuggets and their energy losses in
matter is presented. Different pheomenological models are considered for
their propagation through the Earth atmosphere. Finally, the
implications for SQM detection in Earth based experiments and the
expected fluxes are discussed. In particular, the results of SQM
searches with the SLIM (Search for LIght Magnetic monopoles) experiment
operated at the level of the Chacaltaya High Altitude Laboratory
(Bolivia) are presented.
DATA: 08-05-2008
Istituto Nazionale di Fisica
Nucleare - Piazza dei Caprettari, 70 -
00186 Roma
tel. +39 066840031 - fax +39 0668307924 - email: presidenza@presid.infn.it