出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Stable lumps of quark matter may be present in cosmic rays at a flux level, which can be detected
by high precision cosmic ray experiments sensitive to anomalous “nuclei” with high massto-
charge ratio. The properties of these lumps, called strangelets, are described, and so is the
production and propagation of strangelets in cosmic rays. Two experiments underway which are
sensitive to a strangelet flux in the predicted range are briefly described. Finally it is summarized
how strangelets circumvent the acceleration problem encountered by conventional candidates for
ultra-high energy cosmic rays and move the Greisen-Zatsepin-Kuzmin cutoff to energies well
above the observed maximum energies.
