منابع مشابه
ar X iv : a st ro - p h / 92 05 00 5 v 1 9 M ay 1 99 2 UCSBTH – 92 – 05 April 1992 CHAOTIC DARK MATTER
A very weakly coupled scalar field with mass m and initial vacuum expectation value V will provide enough mass to close the universe provided V ≃ (3 × 10 8 GeV)(100 GeV/m) 1/4. We discuss possible models in which such a field could arise. (a) Electronic address (internet): [email protected].
متن کاملep - p h / 92 05 23 5 v 2 1 8 Ju n 19 93 CERN - TH - 6491 / 92 ENSLAPP - A - 383 / 92 COVARIANT GAUGES AT FINITE TEMPERATURE
A prescription is presented for real-time finite-temperature perturbation theory in co-variant gauges, in which only the two physical degrees of freedom of the gauge-field propagator acquire thermal parts. The propagators for the unphysical degrees of freedom of the gauge field, and for the Faddeev-Popov ghost field, are independent of temperature. This prescription is applied to the calculatio...
متن کاملD:bishtaca 92 92.dvi
10 Quantification of electroinactive dopants in conductive polypyrrole (PPY) films was performed with electrochemistry combined on-line with inductively coupled plasma-atomic emission spectrometry (EC/ICP-AES). Anion (HSO4−) ejection out of a PPY film was first chosen as a model system and the results obtained with EC/ICP-AES were found to be comparable with values deduced by electrochemical qu...
متن کامل/ 92 09 05 6 v 2 7 O ct 1 99 2 Tree Amplitudes in Noncritical
Recent results for tree amplitudes for the N = 2 noncritical strings are presented and compared with the critical case. Arguments are given which indicate a certain discontinuity in passing from thê c < 1 model (in a Coulomb gas representation) to thê c = 1 critical case.
متن کاملCCE 92-05 intercomparison of ac-dc voltage transfer standards at high frequencies (1-50 MHz)
From August 1995 to May 1998, the CCE 92-05 intercomparison of ac–dc voltage transfer standards at high frequencies was carried out. Two travel standards were measured by 15 national standards institutes. The results in the frequency range from 1 to 50 MHz show a good agreement between the majority of participants. The span of the majority of the reported ac–dc differences at 50 MHz is less tha...
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ژورنال
عنوان ژورنال: Computers & Mathematics with Applications
سال: 2000
ISSN: 0898-1221
DOI: 10.1016/s0898-1221(00)00123-1