Gauge-covariantS-matrices for field theory and strings
نویسندگان
چکیده
منابع مشابه
Gauge-covariant S-matrices for field theory and strings
S-matrices can be written Lorentz covariantly in terms of free field strengths for vector states, allowing arbitrary gauge choices. In string theory the vertex operators can be chosen so this gauge invariance is automatic. As examples we give four-vector (super)string tree amplitudes in this form, and find the field theory actions that give the first three orders in the slope. E-mail address: h...
متن کاملStrings of opposite Magnetic Charges in a Gauge Field Theory
We show that there are soliton-like solutions representing arbitrarily located M vortices and N antivortices with opposite magnetic charges in an Abelian gauge eld theory. We establish an existence and uniqueness theorem and prove that the total magnetic ux is proportional to M ? N but the total energy is proportional to M + N. In the presence of Einstein's gravity, we establish an existence th...
متن کاملMass Matrices in Gauge Field Theory of Horizontal Symmetry
We investigate Dirac mass matrices derived in the gauge field theory of a horizontal symmetry generated by a central extension of the Pauli algebra. Through numerical analyses of the observed data of the charged fermion masses and the flavor mixing matrix of quarks, values of free parameters in the mass matrices are determined and several empirical relations are found among the Yukawa coupling ...
متن کاملNoncommutative Gauge Theory, Divergences and Closed Strings
We study the renormalization of non-commutative gauge theories with matter. As in the scalar field theory cases, there are logarithmic infrared divergences resulting from integrating out high momentum modes. In order to reproduce the correct infrared behaviour, the Wilsonian effective action has to include certain ’‘closed string“ modes with prescribed couplings. In the case of quiver gauge the...
متن کاملUndulating Strings and Gauge Theory Waves
We study some dynamical aspects of the correspondence between strings in AdS space and external heavy quarks in N = 4 SYM. Specifically, by examining waves propagating on such strings, we make some plausible (and some surprising) inferences about the time-dependent fields produced by oscillating quarks in the stronglycoupled gauge theory. We point out a puzzle regarding energy conservation in t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2005
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.71.106001