2.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- European Organization for Nuclear ResearchCH1.3k papers
- National and Kapodistrian University of AthensGR1.3k papers
- National Institute of Chemical Physics and BiophysicsEE1.3k papers
- University of CyprusCY1.3k papers
- Universidad Autónoma de MadridES1.3k papers
- California Institute of TechnologyUS1.3k papers
- Charles UniversityCZ1.3k papers
- Cornell UniversityUS1.3k papers
- Tata Institute of Fundamental ResearchIN1.2k papers
- National Central UniversityTW1.2k papers
- University of BristolGB1.2k papers
- University of SplitHR1.2k papers
25 papers · 1 filter
Enhanced mu-e conversion in nuclei in the inverse seesaw model
F. Deppisch, T. S. Kosmas, J. W. F. Valle
We investigate nuclear mu-e conversion in the framework of an effective Lagrangian arising from the inverse seesaw model of neutrino masses. We consider lepton flavour violation in…
Comparison of the Legacy and Gold SnIa Dataset Constraints on Dark Energy Models
S. Nesseris, L. Perivolaropoulos
We have performed a comparative analysis of three recent and reliable SnIa datasets available in the literature: the Full Gold (FG) dataset (157 data points ), a Truncate…
Continuum RPA study of the incoherent mu-e conversion rate and its spurious 1- admixture
P. Papakonstantinou, T. S. Kosmas, J. Wambach +1
The incoherent transition strength of the exotic mu-e conversion in the 208Pb nucleus is investigated by utilizing the Continuum RPA method, appropriate for the evaluation of the r…
Inverted neutrino mass hierarchies from U(1) symmetries
G. K. Leontaris, A. Psallidas, N. D. Vlachos
Motivated by effective low energy models of string origin, we discuss the neutrino masses and mixing within the context of the Minimal Supersymmetric Standard Model supplemented by…
Progress on a spherical TPC for low energy neutrino detection
S Aune, P Colas, H Deschamps +18
The new concept of the spherical TPC aims at relatively large target masses with low threshold and background, keeping an extremely simple and robust operation. Such a device would…
Dedicated Supernova Detection by a Network of Neutral Current Spherical TPC's
J. D. Vergados, Y. Giomataris
Supernova neutrinos can easily be detected by a spherical gaseous TPC detector measuring very low energy nuclear recoils. The expected rates are quite large for a neutron rich targ…
The effects of deformation and pairing correlations on nuclear charge form factor
Ch. C. Moustakidis, T. S. Kosmas, F. Simkovic +1
A set of moderately deformed shell nuclei is employed for testing the reliability of the nuclear ground state wave functions which are obtained in the context of a BCS approa…
A D-brane inspired U(3)_CxU(3)_LxU(3)_R model
G. K. Leontaris, J. Rizos
Motivated by D-brane scenarios, we consider a non-supersymmetric model based on the gauge symmetry U(3)_CxU(3)_LxU(3)_R$ which is equivalent to the SU(3)^3 ``trinification'' model…
Dark matter search by exclusive studies of X-rays following WIMPs nuclear interactions
H. Ejiri, Ch. C. Moustakidis, J. D. Vergados
It is shown that weakly interacting massive particles (WIMPs), which are possible cold dark matter candidates, can be studied by exclusive measurements of X-rays following WIMPs nu…
Gauge coupling and fermion mass relations in low string scale brane models
D. V. Gioutsos, G. K. Leontaris, J. Rizos
We analyze the gauge coupling evolution in brane inspired models with symmetry at the string scale. We restrict to the case of brane configurations…
Bulk Higgs with 4D Gauge Interactions
Alex Kehagias, Kyriakos Tamvakis
We consider a model with an extra compact dimension in which the Higgs is a bulk field while all other Standard Model fields are confined on a brane. We find that four-dimensional…
Direct dark matter search by observing electrons produced in neutralino-nucleus collisions
Ch. C. Moustakidis, J. D. Vergados, H. Ejiri
Exotic dark matter and dark energy together seem to dominate in the Universe. Supersymmetry naturally provides a candidate for the dark matter constituents via the lightest supersy…
Axisymmetric equilibria with anisotropic resistivity and toroidal flow
G. Poulipoulis, G. N. Throumoulopoulos, H. Tasso
The equilibrium of an axisymmetric magnetically confined plasma with anisotropic resistivity and toroidal flow is investigated in the framework of magnetohydrodynamics (MHD). The s…
Exploring New Features of Neutrino Oscillations with a Triton Source and a Large Spherical TPC
Y. Giomataris, J. D. Vergados
The purpose of the present paper is to study the neutrino oscillations as they may appear in the low energy neutrinos emitted in triton decay, with maximum neutrino energy of 18.6…
First measurement of the atom lifetime
The DIRAC collaboration
The goal of the DIRAC experiment at CERN (PS212) is to measure the atom lifetime with 10% precision. Such a measurement would yield a precision of 5% on the value of the $…
Two-fluid tokamak equilibria with reversed magnetic shear and sheared flow
G. Poulipoulis, G. N. Throumoulopoulos, H. Tasso
The aim of the present work is to investigate tokamak equilibria with reversed magnetic shear and sheared flow, which may play a role in the formation of internal transport barrier…
Investigation of the 6He cluster structures
L. Giot, P. Roussel-Chomaz, C. E. Demonchy +22
The 4He+2n and t+t clustering of the 6He ground state were investigated by means of the transfer reaction 6He(p,t)4He at 25 MeV/nucleon. The experiment was performed in inverse kin…
Screened thermonuclear reactions and predictive stellar evolution of detached double-lined eclipsing binaries
Theodore Liolios, Theocharis Kosmas
The low energy fusion cross sections of charged-particle nuclear reactions (and the respective reaction rates) in stellar plasmas are enhanced due to plasma screening effects. We s…
Accounting for outliers and calendar effects in surrogate simulations of stock return sequences
Alexandros Leontitsis, Constantinos E. Vorlow
Surrogate Data Analysis (SDA) is a statistical hypothesis testing framework for the determination of weak chaos in time series dynamics. Existing SDA procedures do not account prop…
Complete minimal hypersurfaces in the hyperbolic space with vanishing Gauss-Kronecker curvature
T. Hasanis, A. Savas-Halilaj, T. Vlachos
We investigate 3-dimensional complete minimal hypersurfaces in the hyperbolic space with Gauss-Kronecker curvature identically zero. More precisely, we give a clas…
Crossing the Phantom Divide Barrier with Scalar Tensor Theories
L. Perivolaropoulos
There is accumulating observational evidence (based on SnIa data) that the dark energy equation of state parameter may be evolving with time and crossing the phantom divide bar…
A Network of Neutral Current Spherical TPC's for Dedicated Supernova Detection
Y. Giomataris, J. D. Vergados
The coherent contribution of all neutrons in neutrino nucleus scattering due to the neutral current offers a realistic prospect of detecting supernova neutrinos. As a matter of fac…
Exploring Cosmological Expansion Parametrizations with the Gold SnIa Dataset
R. Lazkoz, S. Nesseris, L. Perivolaropoulos
We use the SnIa Gold dataset to compare LCDM with 10 representative parametrizations of the recent Hubble expansion history . For the comparison we use two statistical tests;…
NOSTOS experiment and new trends in rare event detection
I. Giomataris, S. Aune, P. Colas +9
A novel low-energy neutrino-oscillation experiment NOSTOS, combining a strong tritium source and a high pressure spherical TPC detector (10 m in radius) has been recently proposed.…