751 citations · 3.9k across the 115 of their papers we have counts for
83 papers · 1 filter
Crystalline color superconductors
Roberto Anglani, Roberto Casalbuoni, Marco Ciminale +4
Inhomogeneous superconductors and inhomogeneous superfluids appear in a variety of contexts including quark matter at extreme densities, fermionic systems of cold atoms, type-II cu…
On aspects of self-consistency in the Dyson-Schwinger approach to QED and λ(ϕ^\star ϕ)^2 theories
Roberto Casalbuoni, Massimo Ladisa, Valerio Olevano
We investigate some aspects of the self-consistency in the Dyson-Schwinger approach to both the QED and the self-interacting scalar field theories. We prove that the set of the Dys…
A linear moose model with pairs of degenerate gauge boson triplets
R. Casalbuoni, F. Coradeschi, S. De Curtis +1
The possibility of the existence of a strongly interacting electroweak symmetry breaking sector, as opposed to the weakly interacting light Higgs of the Standard Model, is not yet…
Holographic approach to a minimal Higgsless model
R. Casalbuoni, S. De Curtis, D. Dominici +1
In this work, following an holographic approach, we carry out a low energy effective study of a minimal Higgsless model based on SU(2) bulk symmetry broken by boundary conditions,…
On the Ground State of QCD inside a Compact Stellar Object
Roberto Casalbuoni
We describe the effects of the strange quark mass and of the color and electric neutrality on the superconducing phases of QCD.
QCD critical point: a historical perspective
Roberto Casalbuoni
We review the history of the critical point in the QCD phase diagram, baryon density vs. temperature. In particular we discuss the different theoretical approaches to this problem.
Effective fermion couplings in warped 5D Higgsless theories
J. Bechi, R. Casalbuoni, S. De Curtis +1
We consider a five dimensional SU(2) gauge theory with fermions in the bulk and with additional SU(2) and U(1) kinetic terms on the branes. The electroweak breaking is obtained by…
Influence of finite quark chemical potentials on the three flavor LOFF phase of QCD
R. Casalbuoni, M. Ciminale, R. Gatto +2
We study in the Ginzburg-Landau approximation, the Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) phase of QCD with three flavors and one plane wave, including terms of order O(1/mu). We…
Color Superconducting Neutral Matter
R. Casalbuoni
We describe the effects of the strange quark mass and of the color and electric neutrality on the superconducing phases of QCD.
Color Superconductivity in High Density QCD
Roberto Casalbuoni
We describe the effects of the strange quark mass and of color and electric neutrality on the superconducing phases of QCD. We discuss various phases pointing out the corresponding…
Deconstructed Higgsless Models
R. Casalbuoni
We consider the possibility of constructing realistic Higgsless models within the context of deconstructed or moose models. We show that the constraints coming from the electro-wea…
A NJL-based study of the QCD critical line
A. Barducci, R. Casalbuoni, G. Pettini +1
We employ a 3 flavor NJL model to stress some general remarks about the QCD critical line. The dependence of the critical curve on and is discus…
Ginzburg-Landau approach to the three flavor LOFF phase of QCD
R. Casalbuoni, R. Gatto, N. Ippolito +2
We explore, using a Ginzburg-Landau expansion of the free energy, the Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) phase of QCD with three flavors, using the NJL four-fermion coupling t…
Playing with fermion couplings in Higgsless models
R. Casalbuoni, S. De Curtis, D. Dolce +1
We discuss the fermion couplings in a four dimensional SU(2) linear moose model by allowing for direct couplings between the left-handed fermions on the boundary and the gauge fiel…
Color superconductivity in high density QCD
R. Casalbuoni
In this contributed paper the gapless phases of QCD are discussed.
Pion and kaon condensation in a 3-flavor NJL model
A. Barducci, R. Casalbuoni, G. Pettini +1
We analyze the phase diagram of a three-flavor Nambu-Jona-Lasinio model at finite temperature and chemical potentials . We study the competition of pion and kaon…
Magnetic properties of the Larkin-Ovchinnikov-Fulde-Ferrell superconducting phase
R. Casalbuoni, R. Gatto, M. Mannarelli +2
We compute, at the first order in the fine structure constant, the parameters of the electromagnetic Lagrangian for the inhomogeneous Larkin-Ovchinnikov-Fulde-Ferrell phase in Quan…
Skyrmions and pentaquarks in the quark-hadron continuity perspective
R. Casalbuoni, G. Nardulli
We argue that in the color-flavor-locking (CFL) superconducting phase classical soliton solutions can exist, whose excitations should be interpreted as states formed by a quark (or…
Moose models with vanishing parameter
R. Casalbuoni, S. De Curtis, D. Dominici
In the linear moose framework, which naturally emerges in deconstruction models, we show that there is a unique solution for the vanishing of the parameter at the lowest order…
Effective Gap Equation for the Inhomogeneous LOFF Superconductive Phase
R. Casalbuoni, M. Ciminale, M. Mannarelli +3
We present an approximate gap equation for different crystalline structures of the LOFF phase of high density QCD at T=0. This equation is derived by using an effective condensate…
A calculation of the QCD phase diagram at finite temperature, and baryon and isospin chemical potentials
A. Barducci, R. Casalbuoni, G. Pettini +1
We study the phases of a two-flavor Nambu-Jona-Lasinio model at finite temperature , baryon and isospin chemical potentials: , . Th…
Little Higgs Models and Precision Electroweak Data
Roberto Casalbuoni, Aldo Deandrea, Micaela Oertel
We study the low energy limit of Little Higgs models. The method consists in eliminating the heavy fields using their classical equations of motion in the infinite mass limit. Afte…
Two tricritical lines from a Ginzburg-Landau expansion: application to the LOFF phase
R. Casalbuoni, G. Tonini
We study the behavior of the two plane waves configuration in the LOFF phase close to T=0. The study is performed by using a Landau-Ginzburg expansion up to the eighth order in the…
Inhomogeneous Color Superconductivity
R. Casalbuoni
We discuss the possibility that in finite density QCD an anisotropic phase is realized. This case might arise for quarks with different chemical potential and/or different masses.…