469,785 research outputs found
Summing up D-Instantons
We investigate quantum corrections to the moduli space for hypermultiplets
for type IIA near a conifold singularity. We find a unique quantum deformation
based on symmetry arguments which is consistent with a recent conjecture. The
correction can be interpreted as an infinite sum coming from multiple wrappings
of the Euclidean D-branes around the vanishing cycle.Comment: 8 pages, harvmac; a reference added, typoes correcte
Summing up Subleading Sudakov Logarithms
We apply the strategy of regions within dimensional regularization to find
functions involved in evolution equations which govern the asymptotic dynamics
of the Abelian form factor and four-fermion amplitude in the SU(N) gauge theory
in the Sudakov limit up to the next-to-leading logarithmic approximation. The
results are used for the analysis of the dominant electroweak corrections to
the fermion-antifermion pair production in the annihilation at high
energy.Comment: 17 pages LaTeX, missprins corrected, references adde
Summing Up
This edition of Educational Considerations focuses on the principalship
Summing Up
One of the six speakers in the final session 'Drawing The Threads Together'
Summing up Non-anti-commutative Kaehler potential
We offer a simple non-perturbative formula for the component action of a
generic N=1/2 supersymmetric chiral model in terms of an arbitrary number of
chiral superfields in four dimensions, which is obtained by the
Non-Anti-Commutative (NAC) deformation of a generic four-dimensional N=1
supersymmetric non-linear sigma-model described by arbitrary Kaehler
superpotential and scalar superpotential. The auxiliary integrations
responsible for fuzziness are eliminated in the case of a single chiral
superfield. The scalar potential in components is derived by eliminating the
auxiliary fields. The NAC-deformation of the CP(1) Kaehler non-linear
sigma-model with an arbitrary scalar superpotential is calculated as an
example.Comment: 9 pages, LaTeX, no figures; section 5 and references adde
A Summing Up
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68526/2/10.1177_009770047600200204.pd
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