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119 papers · 1 filter
Coherence, local quasiconvexity, and the perimeter of 2-complexes
Jonathan P. McCammond, Daniel T. Wise
A group is coherent if all its finitely generated subgroups are finitely presented. In this article we provide a criterion for positively determining the coherence of a group. This…
Momentum dependence of symmetry potential in asymmetric nuclear matter for transport model calculations
C. B. Das, S. Das Gupta, C. Gale +1
For transport model simulations of collisions between two nuclei which have significantly different from unity one needs a one-body potential which is both isospin and moment…
Wilson-Kadanoff Renormalization Group in Higher Orders: One-Dimensional g-ology Model as an Example
G. Y. Chitov, C. Bourbonnais
We apply the standard Wilson-Kadanoff (WK) momentum-space Renormalization Group (RG) scheme for the g-ology model of one-dimensional fermions. By explicitly carrying out calculatio…
A Gel'fond type criterion in degree two
Benoit Arbour, Damien Roy
We establish a criterion for a complex number to be algebraic over Q of degree at most two. It requires that, for any sufficiently large real number X, there exists a non-zero poly…
Simultaneous Measurement of the B0 Meson Lifetime and Mixing Frequency with B0 --> D*- l+ nu Decays
the BABAR Collaboration, B. Aubert
We measure the B0 lifetime τ_{B0} and the B0-B0bar oscillation frequency Δm_d with a sample of approximately 14,000 exclusively reconstructed B0 --> D*- l+ nu signal events, select…
Correlated two-electron transport: a principle for a novel charge pump
Qing-feng Sun, Hong Guo, Jian Wang
By considering a correlated two-electron transport process (TET) and using a diagrammatic analysis within the Keldysh nonequilibrium Green's function formalism, we discuss a novel…