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32 papers · 1 filter
Multiloop String-Like Formulas for QED
C. S. Lam
Multiloop gauge-theory amplitudes written in the Feynman-parameter representation are poised to take advantage of two important developments of the last decade: the spinor-helicity…
Conformally invariant off-shell string physics
Robert C. Myers, Vipul Periwal
Using recent advances in the understanding of non-critical strings, we construct a unique, conformally invariant continuation to off-shell momenta of Polyakov amplitudes in critica…
Coalescence, Percolation and Nuclear Multifragmentation
S. Das Gupta, C. Gale, K. Haglin
We show that the coalescence model for fragment formation leads to an approximate site percolation model. Features characteristic of a percolation model also appear in microscopic…
Quark model calculation of to all orders in the bound state relative momentum
B. Margolis, J. Ng, M. Phipps +1
The electromagnetic box diagram for the leptonic decays of pseudoscalar mesons in the quark model is evaluated to all orders in , where is the relative thr…
Darboux Coordinates and Liouville-Arnold Integration in Loop Algebras
M. R. Adams, J. Harnad, J. Hurtubise
Darboux coordinates are constructed on rational coadjoint orbits of the positive frequency part $\wt{\frak{g}}^+$ of loop algebras. These are given by the values of the spectral pa…
Fractional Superstrings with Critical Spacetime Dimensions Four and Six: A Status Report
Keith R. Dienes
Fractional superstrings are non-trivial generalizations of ordinary superstrings and heterotic strings, and have critical spacetime dimensions which are less than ten by virtue of…