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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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17 papers · 2 filters
Gauge Dependence in the Nonlinearly Realized Massive SU(2) Gauge Theory
Daniele Bettinelli, Ruggero Ferrari, Andrea Quadri
The implementation of the 't Hooft alpha-gauge in the symmetrically subtracted massive gauge theory based on the nonlinearly realized SU(2) gauge group is discussed. The gauge inde…
Wrapping at four loops in N=4 SYM
F. Fiamberti, A. Santambrogio, C. Sieg +1
We present the planar four-loop anomalous dimension of the composite operator tr(phi[Z,phi]Z) in the flavour SU(2) sector of the N=4 SYM theory. At this loop order wrapping interac…
On the Integrable Structure of the Ising Model
Alessandro Nigro
Starting from the lattice realization of the Ising model defined on a strip with integrable boundary conditions, the exact spectrum (including excited states) of all the loca…
Conservation laws and scattering for de Sitter classical particles
S. Cacciatori, V. Gorini, A. Kamenshchik +1
Starting from an intrinsic geometric characterization of de Sitter timelike and lightlike geodesics we give a new description of the conserved quantities associated with classical…
One-loop Self-energy and Counterterms in a Massive Yang-Mills Theory based on the Nonlinearly Realized Gauge Group
Daniele Bettinelli, Ruggero Ferrari, Andrea Quadri
In this paper we evaluate the self-energy of the vector mesons at one loop in our recently proposed subtraction scheme for massive nonlinearly realized SU(2) Yang-Mills theory. We…
Reduced Hamiltonian for intersecting shells
Francesco Fiamberti, Pietro Menotti
The gauge usually adopted for extracting the reduced Hamiltonian of a thin spherical shell of matter in general relativity, becomes singular when dealing with two or more intersect…
Black strings in AdS_5
Alice Bernamonti, Marco M. Caldarelli, Dietmar Klemm +3
We present non-extremal magnetic black string solutions in five-dimensional gauged supergravity. The conformal infinity is the product of time and S^1xS_h, where S_h denotes a comp…
Universal regularization prescription for Lovelock AdS gravity
Georgios Kofinas, Rodrigo Olea
A definite form for the boundary term that produces the finiteness of both the conserved quantities and Euclidean action for any Lovelock gravity with AdS asymptotics is presented.…
Two loop superstring amplitudes and S_6 representations
Sergio Cacciatori, Francesco Dalla Piazza
In this paper we describe how representation theory of groups can be used to shorten the derivation of two loop partition functions in string theory, giving an intrinsic descriptio…
Counterterms in Dimensionally Continued AdS Gravity
Olivera Miskovic, Rodrigo Olea
We revise two regularization mechanisms for Lovelock gravity with AdS asymptotics. The first one corresponds to the Dirichlet counterterm method, where local functionals of the bou…
Geometry of four-dimensional Killing spinors
S. L. Cacciatori, M. M. Caldarelli, D. Klemm +2
The supersymmetric solutions of N=2, D=4 minimal ungauged and gauged supergravity are classified according to the fraction of preserved supersymmetry using spinorial geometry techn…
The scalar wave equation in a non-commutative spherically symmetric space-time
Elisabetta Di Grezia, Giampiero Esposito, Gennaro Miele
Recent work in the literature has studied a version of non-commutative Schwarzschild black holes where the effects of non-commutativity are described by a mass function depending o…
The CFT dual of AdS gravity with torsion
Dietmar Klemm, Giovanni Tagliabue
We consider the Mielke-Baekler model of three-dimensional AdS gravity with torsion, which has gravitational and translational Chern-Simons terms in addition to the usual Einstein-H…
A Massive Yang-Mills Theory based on the Nonlinearly Realized Gauge Group
Daniele Bettinelli, Ruggero Ferrari, Andrea Quadri
We propose a subtraction scheme for a massive Yang-Mills theory realized via a nonlinear representation of the gauge group (here SU(2)). It is based on the subtraction of the poles…
Real versus complex beta-deformation of the N=4 planar super Yang-Mills theory
Federico Elmetti, Andrea Mauri, Silvia Penati +2
This is a sequel of our paper hep-th/0606125 in which we have studied the {\cal N}=1 SU(N) SYM theory obtained as a marginal deformation of the {\cal N}=4 theory, with a complex de…
Holographic flavour in the N=1 Polchinski-Strassler background
Christoph Sieg
To endow the N=1* SYM theory with quarks, we embed D7-brane probes into its gravity dual, known as the Polchinski-Strassler background. The non-vanishing 3-form flux G_3 in the bac…
Path-integral over non-linearly realized groups and Hierarchy solutions
Daniele Bettinelli, Ruggero Ferrari, Andrea Quadri
The technical problem of deriving the full Green functions of the elementary pion fields of the nonlinear sigma model in terms of ancestor amplitudes involving only the flat connec…