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101 papers · 1 filter
Corrections to Fermi's Golden Rule in Decays
E. Fischbach, A. W. Overhauser, B. Woodahl
We analyze the decays utilizing a formulation of transition rates which explicitly exhibits corrections to Fermi's Golden Rule. These corrections arise in systems i…
First-Principles Based Matrix-Green's Function Approach to Molecular Electronic Devices: General Formalism
Yongqiang Xue, Supriyo Datta, Mark A. Ratner
Transport in molecular electronic devices is different from that in semiconductor mesoscopic devices in two important aspects: (1) the effect of the electronic structure and (2) th…
Discovery of Two Types of X-ray Dips in Cyg X-1
Y. X. Feng, Wei Cui
We observed Cyg X-1 with {\em RXTE} contiguously over its 5.6-day binary orbit. The source was found to be in the hard state throughout the observation. Many intensity dips were de…
A Peculiar Flaring Episode of Cygnus X-1
Wei Cui, Yuxin Feng, Mark Ertmer
Recent monitoring of Cyg X-1 with {\em RXTE} revealed a period of intense flaring, which started in October of 2000 and lasted until March of 2001. The source exhibited some quite…
Differential Elliptic Flow in 2 - 6 AGeV Au+Au Collisions: A New Constraint for the Nuclear Equation of State
E895 Collaboration, P. Danielewicz
Proton elliptic flow is studied as a function of impact-parameter , for two transverse momentum cuts in 2 - 6 AGeV Au + Au collisions. The elliptic flow shows an essentially lin…
Analysis and interpretation of new low-energy Pi-Pi scattering data
S. Descotes, N. H. Fuchs, L. Girlanda +1
The recently published E865 data on charged K_e4 decays and Pi-Pi phases are reanalyzed to extract values of the two S-wave scattering lengths, of the subthreshold parameters alpha…