10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- European Organization for Nuclear ResearchCH2k papers
- National and Kapodistrian University of AthensGR1.9k papers
- Charles UniversityCZ1.9k papers
- Rutherford Appleton LaboratoryGB1.9k papers
- Centre National de la Recherche ScientifiqueFR1.8k papers
- Universidad Autónoma de MadridES1.8k papers
- Boğaziçi UniversityTR1.8k papers
- University of BelgradeRS1.8k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1.8k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.8k papers
- The Ohio State UniversityUS1.8k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.8k papers
32 papers · 1 filter
An Equation-Free Approach to Nonlinear Control: Coarse Feedback Linearization With Pole-Placement
C. I. Siettos, I. G. Kevrekidis, N. Kazantzis
We present an application of equation-free computation to the coarse-grained feedback linearization problem of nonlinear systems described by microscopic/stochastic simulators. Fee…
An application of the renormalization group to the calculation of the vacuum decay rate in flat and curved space-time
D. Metaxas
I show that an application of renormalization group arguments may lead to significant corrections to the vacuum decay rate for phase transitions in flat and curved space-time. It c…
Higher-Spin Fields in Braneworlds
Cristiano Germani, Alex Kehagias
The dynamics of higher-spin fields in braneworlds is discussed. In particular, we study fermionic and bosonic higher-spin fields in AdS_5 and their localization on branes. We find…
Gravitational effects on critical Q-balls
Dimitrios Metaxas
In a cosmological phase transition in theories that admit Q-balls there is a value of the soliton charge above which the soliton becomes unstable and expands, converting space to t…
Extra-Dimensions effects on the fermion-induced quantum energy in the presence of a constant magnetic field
K. Farakos, P. Pasipoularides
We consider a U(1) gauge field theory with fermion fields (or with scalar fields) that live in a space with extra compact dimensions, and we compute the fermion-induced quantum…
A general search for new phenomena in ep scattering at HERA
H1 Collaboration
A model-independent search for deviations from the Standard Model prediction is performed in e^+ p and e^- p collisions at HERA using H1 data corresponding to an integrated luminos…
Sc substitution for Mg in MgB2: effects on Tc and Kohn anomaly
S. Agrestini, C. Metallo, M. Filippi +9
Here we report synthesis and characterization of Mg_{1-x}Sc_{x}B_{2} (0.12<x<0.27) system, with critical temperature in the range of 30>T_{c}>6 K. We find that the Sc doping moves…
AdS/CFT Correspondence and the Reheating of the Brane-Universe
E. Papantonopoulos, V. Zamarias
We present a mechanism for exit from inflation and reheating using the AdS/CFT correspondence. A cosmological evolution is induced on a probe D3-brane as it moves in a black D-bran…
Anomalous magnetic moment in parity-conserving QED3
Jean Alexandre, K. Farakos, N. E. Mavromatos
In this article we derive the anomalous magnetic moment of fermions in (2+1)-dimensional parity-conserving QED3, in the presence of an externally applied constant magnetic field. W…
Finite SU(N)^k Unification
Ernest Ma, Myriam Mondragon, G. Zoupanos
We consider N=1 supersymmetric gauge theories based on the group SU(N)_1 x SU(N)_2 x ... x SU(N)_k with matter content (N,N*,1,...,1) + (1,N,N*,...,1) + >... + (N*,1,1,...,N) as ca…
Effective potential analysis for 5D SU(2) gauge theories at finite temperature and radius
K. Farakos, P. Pasipoularides
We calculate the one loop effective potential for a 5D SU(2) gauge field theory at finite temperature and radius R=1/M. This calculation is performed, for the first time, i…
Gauged D=7 Supergravity on the S**1/Z_2 Orbifold
Spyros D. Avramis, Alex Kehagias
We construct the most general couplings of a bulk seven-dimensional Yang-Mills-Einstein N=2 supergravity with a boundary six-dimensional chiral N=(0,1) theory of vectors and charge…
Dimensional Reduction of ten-dimensional Supersymmetric Gauge Theories in the N=1, D=4 Superfield Formalism
P. Manousselis, G. Zoupanos
A ten-dimensional supersymmetric gauge theory is written in terms of N=1, D=4 superfields. The theory is dimensionally reduced over six-dimensional coset spaces. We find that the r…
EYM equations in the presence of q-stars
Athanasios Prikas
We study Einstein-Yang-Mills equations in the presence of gravitating non-topological soliton field configurations, of q-ball type. We produce numerical solutions, stable with resp…
Measurement of the Proton Structure Function F_2 at low Q^2 in QED Compton Scattering at HERA
H1 Collaboration
The proton structure function F_2(x,Q^2) is measured in inelastic QED Compton scattering using data collected with the H1 detector at HERA. QED Compton events are used to access th…
A Conical Tear Drop as a Vacuum-Energy Drain for the Solution of the Cosmological Constant Problem
Alex Kehagias
We propose a partial solution to the cosmological constant problem by using the simple observation that a three-brane in a six-dimensional bulk is flat. A model is presented in whi…
Search for bosonic stop decays in R-parity violating supersymmetry in e^+ p collisions at HERA
H1 Collaboration
A search for scalar top quarks in R-parity violating supersymmetry is performed in e^+ p collisions at HERA using the H1 detector. The data, taken at sqrt{s}=319 GeV and 301 GeV, c…
Q-stars in 2+1 dimensions
Athanasios Prikas
We study q-stars with one or two scalar fields, non-abelian, and fermion-scalar q-stars in 2+1 dimensions in an anti de Sitter or flat spacetime. We fully investigate their propert…
Layered Higgs Phase as a Possible Field Localisation on a Brane
P. Dimopoulos, K. Farakos
So far it has been found by using lattice techniques that in the anisotropic five--dimensional Abelian Higgs model, a layered Higgs phase exists in addition to the expected five--d…
Finite Unified Theories and the Higgs mass prediction
A. Djouadi, S. Heinemeyer, M. Mondragon +1
Finite Unified Theories (FUTs) are N=1 supersymmetric Grand Unified Theories, which can be made all-loop finite, both in the dimensionless (gauge and Yukawa couplings) and dimensio…
Q-stars in extra dimensions
Athanasios Prikas
We study q-stars with global and local U(1) symmetry in extra dimensions in asymptotically anti de Sitter or flat spacetime. The behavior of the mass, radius and particle number of…
Evidence for a Narrow Anti-Charmed Baryon State
H1 Collaboration
A narrow resonance in D*- p and D*+ pbar invariant mass combinations is observed in inelastic electron-proton collisions at centre-of-mass energies of 300 GeV and 320 GeV at HERA.…
Box Compactification and Supersymmetry Breaking
A. Kehagias, K. Tamvakis
We discuss all possible compactifications on flat three-dimensional smooth spaces. In particular, various fields are studied on a box with opposite sides identified, after two of t…
Q-stars in anti de Sitter spacetime
Athanasios Prikas
We study q-stars with various symmetries in anti de Sitter spacetime in 3+1 dimensions. Comparing with the case of flat spacetime, we find that the value of the field at the center…