[en] We study the interaction between two B = 1 states in a chiral soliton model where baryons are described as non-topological solitons. By using the hedgehog solution for the B = 1 states we construct three possible B = 2 configurations to analyze the role of the relative orientation of the hedgehog quills in the dynamics. The strong dependence of the inter soliton interaction on these relative orientations reveals that studies of dense hadronic matter using this model should take into account their implications. (author)

[en] This paper considers unitarity and CPT constraints on asymmetric freeze-in, the use of freeze-in to store baryon number in a dark sector. In this scenario, Sakharov's out of equilibrium condition is satisfied by placing the visible and hidden sectors at different temperatures while a net visible baryon number is produced by storing negative baryon number in a dark sector. It is shown that unitarity and CPT lead to unexpected cancellations. In particular, the transfer of baryon number cancels completely at leading order. This note has shown that if two sectors are in thermal equilibrium with themselves, but not with each other, then the leading effect transferring conserved quantities between the two sectors is of order the the weak coupling connecting them to the third power. When freeze-in is used to produce a net baryon number density, the leading order effect comes from Ο(λ³) diagrams where the intermediate state that goes on-shell has a different visible baryon number than the final state visible baryon number. Models in which the correct baryon number is generated with freeze-in as the dominant source of abundance, typically require λ ∼> 10^-6 and m_bath ∼> TeV. m_bath is the mass of the visible particle which communicates with the hidden sector. The lower window is potentially observable at the LHC.

No abstract available

No abstract available

[en] Elementary examples are provided of reaction rate matrices satisfying the constraints of unitarity and CPT invariance, which can lead a system with baryon number initially zero to evolve toward non-zero baryon number. The importance of the unitarity constraint is emphasized. (Auth.)

[en] Other experiments testing the suggested new vectorial interaction of subgravitational strength and the possible theoretical interpretations of this interaction are discussed

[en] We have carefully reexamined the results of the experiment of Eoetvoes, Pekar, and Fekete, which compared the accelerations of various materials to the Earth. We find that the Eoetvoes-Pekar-Fekete data are sensitive to the composition of the materials used, and that their results support the existence of an intermediate-range coupling to baryon number or hypercharge

[en] The possibility of natural and abundant creation of antimatter in the universe in a SUSY baryogenesis model with a scalar field condensate is described. In this scenario the vast quantities of antimatter, corresponding to galaxy cluster and supercluster scales today, can be naturally separated. Theoretical and observational constraints on such antimatter regions are discussed. (author)

[en] A well-balanced hollow copper sphere freely floating and almost totally submerged in water is observed to move toward the nearby edge of a cliff. This observation is consistent with a substance-dependent, medium-range force postulated in a recent reanalysis of the Eoetvoes experiment. Further measurements with different elements and geometries will be required to establish definitely the existence, source, and description of such a new force

No abstract available