Electron to selectron pair conversion in a SUSY bubble

In the standard model, energy release in dense stars is severely restricted by the Pauli exclusion principle. However, if, in regions of space of high fermion degeneracy, there is a phase transition to a state of exact supersymmetry (SUSY), fermion to sfermion pair conversion followed by radiative transitions to the Bose ground state could lead to a highly collimated gamma ray burst. We calculate the cross section for electron to selectron pair conversion in a SUSY bubble and construct a monte carlo for the resulting sfermion amplification by stimulated emission.Comment: 13 pages, 4 figures, published version with "with jet production by Bose enhancement" added to titl

Nuclear Physics in a Susy Universe

We refine a previous zeroth order analysis of the nuclear properties of a supersymmetric (susy) universe with standard model particle content plus degenerate susy partners. No assumptions are made concerning the Higgs structure except we assume that the degenerate fermion/sfermion masses are non-zero. This alternate universe has been dubbed Susyria and it has been proposed that such a world may exist with zero vacuum energy in the string landscape.Comment: 8 pages, 1 figur

Transformations in the grain boundary ensemble of M1 copper subjected to equal-channel angular pressing during recrystallization annealing

The grain structure of M1 copper subjected to equal-channel angular pressing (ECAP) and subsequent annealing at 593K for 1 h is studied by means of transmission electron microscopy and scanning electron microscopy with the diffraction of backscattered electron

Parity and Time Reversal in J/Psi Decay

With the prospect of large numbers of $J/\Psi$ decay events becoming available in the near future, it is interesting to search for symmetry violating effects as probes of new physics and tests of the standard model. $J/\Psi$ decay events could provide the first observation of weak effects in otherwise strongly decaying particles. We calculate a T odd asymmetry in the $J/\Psi$ decay into photon plus lepton pair due to Z boson exchange. Extensions to hadronic final states are also discussed.Comment: 9 pages, 3 eps figures revised to include additional relevant reference

Правове регулювання господарської діяльності в Україні

The textbook discusses the concept, legal status of business entities, the order of their formation and operation, lending, legal regulation of leasing and renting, exchange activities. After each topic, tests, practical tasks and topics for abstracts are provided. For students, graduate students and teachers of economics, philology and technical specialties.У навчальному посібнику розглядається поняття, правовий статус суб’єктів підприємницької діяльності, порядок їх утворення та діяльності, кредитування, правове регулювання лізингу та оренди, біржова діяльність. Після кожної теми надаються тести, практичні завдання та теми для рефератів. Для студентів, аспірантів та викладачів економічних, філологічних та технічних спеціальностей