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10 papers · 1 filter
On the Semi-Relative Condition for Closed (TOPOLOGICAL) Strings
C. M. Becchi, R. Collina, C. Imbimbo
We provide a simple lagrangian interpretation of the meaning of the semi-relative condition in closed string theory. Namely, we show how the semi-relative condition is equi…
Fermions, Anomaly and Unitarity in High-Energy Electroweak Scattering
R. Guida, K. Konishi, N. Magnoli
We report the "state of the art" of the problem of violation in high-energy electroweak scatterings. Results of various analyses point toward (though do not prove rigorously…
Improving the Weizsäcker-Williams Approximation in Electron-Proton Collisions
S. Frixione, M. L. Mangano, P. Nason +1
We critically examine the validity of the Weizsäcker-Williams approximation in electron-hadron collisions. We show that in its commonly used form it can lead to large errors, and w…
Variational Methods for Nuclear Systems with Dynamical Mesons
R. Cenni, S. Fantoni
We derive a model Hamiltonian whose ground state expectation value of any two-body operator coincides with that obtained with the Jastrow correlated wave function of the many-body…
On the Relativistic Description of the Nucleus
R. Cenni, A. Molinari, G. Vagradov
We discuss a relativistic theory of the atomic nuclei in the framework of the hamiltonian formalism and of the mesonic model of the nucleus. Attention is paid to the translational…
Heavy Quark Correlations in Photon-Hadron Collisions
S. Frixione, M. Mangano, P. Nason +1
We describe a next-to-leading-order calculation of the fully exclusive parton cross section for the photoproduction of heavy quarks. We use our result to compute quantities of inte…