منابع مشابه
/ 03 06 47 2 v 1 2 3 Ju n 20 03 Branch , Spur , and Feather Formation in Spiral Galaxies
We use hydrodynamical simulations to investigate the response of geometrically thin, self-gravitating, singular isothermal disks of gas to imposed rigidly rotating spiral potentials. By minimizing reflection-induced feedback from boundaries , and by restricting our attention to models where the swing parameter X ∼ 10, we minimize the swing amplification of global normal modes even in models whe...
متن کامل/ 03 06 04 9 v 1 2 4 Ju n 20 03 Search for Rare and Forbidden 3 - body
Using a high statistics sample of photo-produced charm particles from the FOCUS experiment at Fermilab, we report results of a search for eight rare and StandardModel-forbidden decays: D+, D+ s → h ±μ∓μ+ (with h = π,K). Improvement over previous results by a factor of 1.7–14 is realized. Our branching ratio upper limit D+ → π+μ−μ+ of 8.8× 10−6 at the 90% C.L. is below the current MSSM R-Parity ...
متن کاملar X iv : h ep - t h / 03 06 12 5 v 1 1 3 Ju n 20 03 Chiral SU ( N ) Gauge Theories and the Konishi Anomaly
We study chiral SU(N) supersymmetric gauge theories with matter in the antifundamental and antisymmetric representations. For SU(5) with two families, we show how to reproduce the non-perturbatively generated superpotential, and we discuss dynamical supersymmetry breaking purely in terms of the Konishi anomaly. We apply the same technique in general to SU(N) with one family. We also briefly com...
متن کامل06 51 8 v 1 2 4 Ju n 20 03 Eddington Accretion and QSO Emission Lines at z ∼ 2
Broad Absorption Line (BAL) QSOs have been suggested to be youthful super-accretors based on their powerful radiatively driven absorbing outflows and often reddened continua. To test this hypothesis, we observed near IR spectra of the Hβ region for 11 bright BAL QSOs at redshift z ∼2. We measured these and literature spectra for 6 BAL QSOs, 13 radio-loud and 7 radio-quiet non-BAL QSOs. Using th...
متن کامل/ 01 06 03 7 v 3 3 O ct 2 00 1 N - fold Supersymmetry in Quantum Mechanics - General Formalism
We report general properties of N -fold supersymmetry in one-dimensional quantum mechanics. N -fold supersymmetry is characterized by supercharges which are N -th polynomials of momentum. Relations between the anti-commutator of the supercharges and the Hamiltonian, the spectra, the Witten index, the non-renormalization theorems and the quasi-solvability are examined. We also present further in...
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ژورنال
عنوان ژورنال: Revista de Estudos e Pesquisas sobre Ensino Tecnológico (EDUCITEC)
سال: 2017
ISSN: 2446-774X
DOI: 10.31417/educitec.v3i06.277