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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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32 papers · 1 filter
Complex Conjugate Pairs in Stationary Sturmians
P. J. Dortmans, L. Canton, G. Pisent +1
Sturmian eigenstates specified by stationary scattering boundary conditions are particularly useful in contexts such as forming simple separable two nucleon t matrices, and are det…
Theory of Coupled Pion--Trinucleon Systems
L. Canton, G. Cattapan
We derive the dynamical equations which consistently couple the four--body (NNN) system to the underlying three--nucleon system. Our treatment can be considered the proper gener…
Thermal Background Corrections to the Neutrino Electromagnetic Vertex in Models with Charged Scalar Bosons
Antonio Riotto
We calculate the correction to the neutrino electromagnetic vertex due to background of electrons in a large class of models, as the supersymmetric model with explicit breaking of…
Bardeen-Anomaly and Wess-Zumino Term in the Supersymmetric Standard Model
S. Ferrara, A. Masiero, M. Porrati +1
We construct the Bardeen anomaly and its related Wess-Zumino term in the supersymmetric standard model. In particular we show that it can be written in terms of a composite linear…
Spontaneous Breaking of R parity in the Minimal Supersymmetric Standard Model Revisited
D. Comelli, A. Masiero, M. Pietroni +1
We reconsider the possibility of spontaneous breaking of parity in the Minimal Supersymmetric Standard Model. By a renormalization group analysis we find the parameter space in…
The Higgs model for anyons and Liouville action
Marco Matone
We connect Liouville theory, anyons and Higgs model in a purely geometrical way.
Liouville Equation And Schottky Problem
Marco Matone
An Ansatz for the Poincaré metric on compact Riemann surfaces is proposed. This implies that the Liouville equation reduces to an equation resembling a non chiral analogous of the…
Duality in Supergravity Theories
A. Candiello, K. Lechner
We present a unified treatment in superspace of the two dual formulations of , {\it pure} supergravity based on a strictly super-geometrical framework: the only fundame…
Quantum Riemann surfaces, 2D gravity and the geometrical origin of minimal models
M. Matone
Based on a recent paper by Takhtajan, we propose a formulation of 2D quantum gravity whose basic object is the Liouville action on the Riemann sphere with both paraboli…
Constraints and Hamiltonian in Light-Front Quantized Field Theory
Prem P. Srivastava
Self-consistent Hamiltonian formulation of scalar theory on the null plane is constructed following Dirac method. The theory contains also {\it constraint equations}. They would gi…
The physical hamiltonian in nonperturbative quantum gravity
Carlo Rovelli, Lee Smolin
A quantum hamiltonian which evolves the gravitational field according to time as measured by constant surfaces of a scalar field is defined through a regularization procedure based…
Renormalization of gauge invariant composite operators in light-cone gauge
C. Acerbi, A. Bassetto
We generalize to composite operators concepts and techniques which have been successful in proving renormalization of the effective Action in light-cone gauge. Gauge invariant oper…
On the Chiral Fermions in the Twistor--Like Formulation of D=10 Heterotic String
D. Sorokin, M. Tonin
An n=8 worldsheet superfield action is proposed for describing chiral fermions in the twistor-like formulation of an N=1, D=10 heterotic superstring.
Doubly Supersymmetric Null Strings and String Tension Generation
Igor A. Bandos, Dmitrij P. Sorokin, Mario Tonin +1
We propose a twistor--like formulation of N=1, D=3,4,6 and 10 null superstrings. The model possesses N=1 target space supersymmetry and n=D-2 local worldsheet supersymmetry, the la…
D=(0|2) Dirac--Maxwell--Einstein Theory as a Way for Describing Supersymmetric Quartions
Dmitrij P. Sorokin, Dmitrij V. Volkov
Drawing an analogy with the Dirac theory of fermions interacting with electromagnetic and gravitational field we write down supersymmetric equations of motion and construct a super…
Renormalization Group Equations for Seesaw Neutrino Masses
Piotr H. Chankowski, Zbigniew Pluciennik
RGEs for coefficients of dim-5 operators giving rise to neutrino masses in the seesaw mechanism are written down in the SM, 2HDM and MSSM, and solved numerically. RG evolution of t…
Uniformization theory and 2D gravity I. Liouville action and intersection numbers
M. Matone
This is the first part of an investigation concerning the formulation of 2D gravity in the framework of the uniformization theory of Riemann surfaces. As a first step in this direc…
Electromagnetic properties of the neutrinos and the pion radiative decay
D. Grasso, M. Pietroni, A. Riotto
We investigate the implications of neutrino electromagnetic dipole moments for the radiative decay . We show that the dominant new effect comes from the interfer…
Non Perturbative Solutions and Scaling Properties of Vector, Axial--Vector Electrodynamics in Dimensions
A. Bassetto, L. Griguolo, P. Zanca
We study by non perturbative techniques a vector, axial--vector theory characterized by a parameter which interpolates between pure vector and chiral Schwinger models. Main results…
The basis of the Ponzano-Regge-Turaev-Viro-Ooguri model is the loop representation basis
Carlo Rovelli
We show that the Hilbert space basis that defines the Ponzano-Regge- Turaev-Viro-Ooguri combinatorial definition of 3-d Quantum Gravity is the same as the one that defines the Loop…
Mixed Dark Matter from Axino Distribution
S. A. Bonometto, F. Gabbiani, A. Masiero
We study the possibility of mixed dark matter obtained through the phase space distribution of a single particle. An example is offered in the context of SUSY models with a Peccei-…
Hadronic Transitions among Quarkonium States in a Soft-Exchange-Approximation. Chiral Breaking and Spin Symmetry Breaking Processes
R. Casalbuoni, A. Deandrea, N. Di Bartolomeo +3
Although no asymptotic heavy quark spin symmetry, and even more no flavor symmetry, are expected for systems such as quarkonium, a numerical discussion shows that for some processe…
Spontaneous CP Violation and Baryogenesis in the Minimal Supersymmetric Standard Model
D. Comelli, M. Pietroni, A. Riotto
We investigate the effects of the spontaneous CP violation at finite temperature in the Minimal Supersymmetric Standard Model on the baryogenesis at the weak scale. After a brief d…
Collective Modes in a Slab of Interacting Nuclear Matter: The effects of finite range interactions
W. M. Alberico, P. Czerski, A. De Pace +1
We consider a slab of nuclear matter and investigate the collective excitations, which develop in the response function of the system. We introduce a finite-range realistic interac…