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16 papers · 1 filter
Two loop results from the derivative expansion of the blocked action
Alfio Bonanno, Dario Zappala'
A derivative expansion of the Wegner-Houghton equation is derived for a scalar theory. The corresponding full non-perturbative renormalization group equations for the potential and…
Anomalous Thermal Transport in Quantum Wires
Rosario Fazio, F. W. J. Hekking, D. E. Khmelnitskii
We study thermal transport in a one-dimensional quantum wire, connected to reservoirs. Despite of the absence of electron backscattering, interactions in the wire strongly influenc…
Fusion and Binary-Decay Mechanisms in the Cl+Mg System at E/A 8 MeV/Nucleon
Sl. Cavallaro, ; R. Dayras, ; C. Beck +1
Compound-nucleus fusion and binary-reaction mechanisms have been investigated for the Cl+Mg system at an incident beam energy of E= 282 MeV. Charge distributi…
Resonant Andreev Tunneling in Strongly Interacting Quantum Dots
Rosario Fazio, Roberto Raimondi
We study resonant Andreev tunneling through a strongly interacting quantum dot connected to a normal and to a superconducting lead. We obtain a formula for the Andreev current and…
Fixed point analysis of a scalar theory with an external field
A. Bonanno, D. Zappala'
A momentum dependent projection of the Wegner-Hougton equation is derived for a scalar theory coupled to an external field. This formalism is useful to discuss the phase diagram of…
The GRAAL high resolution BGO calorimeter and its energy calibration and monitoring system
F. Ghio, B. Girolami, M. Capogni +13
We describe the electromagnetic calorimeter built for the GRAAL apparatus at the ESRF. Its monitoring system is presented in detail. Results from tests and the performance obtained…