Off-shell Nucleons in Intermediate Energy Physics
نویسندگان
چکیده
منابع مشابه
Particle production from off-shell nucleons
Particle production in equilibrium and nonequilibrium quantum systems is calculated. The effects of the off-shell propagation of nucleons in medium on the particle production are discussed. Comparision to the semiclassical production rate is given. The production of mesons and hard photons in intermediate energy heavy ion collisions is considered to be sensitive to the collision dynamics and to...
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We derive the general structure of the hadronic tensor required to describe deep-inelastic scattering from an off-shell nucleon within a covariant formalism. Of the large number of possible off-shell structure functions we find that only three contribute in the Bjorken limit. In our approach the usual ambiguities encountered when discussing problems related to off-shellness in deep-inelastic sc...
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Recent advances in non-critical string theory allow a unique continuation, preserving con-formal invariance, of critical Polyakov string amplitudes to off-shell momenta. These continuations possess unusual, apparently stringy, characteristics, which are unlikely to be reproduced in a string field theory. Thus our results may be an indication that some fundamentally new formulation, other than s...
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We show that it is possible to distinguish between different off-shell completions of supergravity at the on-shell level. We focus on the comparison of the “new minimal” formulation of off-shell four-dimensional N = 1 supergravity with the “old minimal” formulation. We show that there are 3manifolds which admit supersymmetric compactifications in the new-minimal formulation but which do not adm...
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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 critical string theory. Three-point amplitudes are explicitly calculated. These off-shell amplitudes possess some unusual, apparently stringy, characteristics, which are unlikely to be reproduced in a string field theory. Th...
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ژورنال
عنوان ژورنال: HNPS Proceedings
سال: 2020
ISSN: 2654-0088,2654-007X
DOI: 10.12681/hnps.2928