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19972026
most citedObservation of resonances consistent with pentaquark states in decays

1.3k citations

Showing 2004Show all

16 papers · 1 filter

hep-ph2004

Super-Cerenkov Radiation: A new phenomenon useful for RICH Detectors

D. B. Ion, M. L. Ion

In this contribution the Super-Cerenkov radiation (SCR) as a new phenomenon which includes in a more general and exact form the usual Cerenkov effect is presented. The Super-Cerenk…

nucl-ex2004★ 26 cited

Correlations between signals of the liquid-gas phase transition in nuclei

Marie-France Rivet, N. Le Neindre, J. P. Wieleczko +9

Finite systems such as atomic nuclei present at phase transition specific features different from those observed at the thermodynamic limit. Several characteristic signals were fou…

math-ph2004★ 12 cited

Gravitational and axial anomalies for generalized Euclidean Taub-NUT metrics

Ion I. Cotăescu, Sergiu Moroianu, Mihai Visinescu

The gravitational anomalies are investigated for generalized Euclidean Taub-NUT metrics which admit hidden symmetries analogous to the Runge-Lenz vector of the Kepler-type problem.…

hep-th2004★ 12 cited

Symmetries and supersymmetries of the Dirac operators in curved spacetimes

I. I. Cotaescu, M. Visinescu

It is shown that the main geometrical objects involved in all the symmetries or supersymmetries of the Dirac operators in curved manifolds of arbitrary dimensions are the Killing v…

hep-ex2004★ 24 cited

Detection of atoms with the DIRAC spectrometer at CERN

The DIRAC collaboration

The goal of the DIRAC experiment at CERN is to measure with high precision the lifetime of the atom (), which is of order s, and thus to determin…

math.DG2004★ 6 cited

Geometrical phases on hermitian symmetric spaces

Stefan Berceanu

For simple Lie groups, the only homogeneous manifolds , where is maximal compact subgroup,for which the phase of the scalar product of two coherent state vectors is twice…

nlin.SI2004★ 5 cited

Localised and nonlocalised structures in nonlinear lattices with fermions

A. S. Carstea, D. Grecu, A. Visinescu

We discuss the quasiclassical approximation for the equations of motions of a nonlinear chain of phonons and electrons having phonon mediated hopping. Describing the phonons and el…

nucl-ex2004★ 14 cited

Extended sudden approximation model for high-energy nucleon removal reactions

F. Carstoiu, E. Sauvan, N. A. Orr +1

A model based on the sudden approximation has been developed to describe high energy single nucleon removal reactions. Within this approach, which takes as its starting point the f…

nucl-th2004★ 25 cited

Self Consistent Random Phase Approximation and the restoration of symmetries within the three-level Lipkin model

D. S. Delion, P. Schuck, J. Dukelsky

We show that it is possible to restore the symmetry associated with the Goldstone mode within the Self Consistent Random Phase Approximation (SCRPA) applied to the three-level Lipk…

nucl-th2004★ 47 cited

Complex fission phenomena

D. N. Poenaru, R. A. Gherghescu, W. Greiner

Complex fission phenomena are studied in a unified way. Very general reflection asymmetrical equilibrium (saddle point) nuclear shapes are obtained by solving an integro-differenti…

hep-ph2004

Toward a New Phenomenon: Super-Cerenkov Radiation

D. B. Ion, M. L. Ion

In this letter a new coherent gamma emission mechanism, called Super-Cerenkov radiation, is introduced. The SCR is expected to take place when the charged particle is moving in a m…

astro-ph2004★ 6 cited

Multiverse cosmological models

P. C. W. Davies

Recent advances in string theory and inflationary cosmology have led to a surge of interest in the possible existence of an ensemble of cosmic regions, or universes, among the memb…

nucl-ex2004★ 48 cited

Refractive effects in the scattering of loosely bound nuclei

F. Carstoiu, L. Trache, R. E. Tribble +1

A study of the interaction of loosely bound nuclei 6,7Li at 9 and 19 AMeV with light targets has been undertaken. With the determination of unambiguous optical potentials in mind,…

physics.ins-det2004★ 11 cited

Space charge in drift chambers operated with the Xe,CO2(15%) mixture

A. Andronic

Using prototype modules of the ALICE Transition Radiation Detector we investigate space charge effects and the dependence of the pion rejection performance on the incident angle of…

nucl-th2004

Supergiant halos as an integral record of natural pionic radioactivity

D. B. Ion, Reveica Ion-Mihai, M. L. Ion +1

In this paper an unified interpretation of the supergiant halos (SGH), discovered by Grady, Walker and Laemmlein, is discussed. So, it is proved that SGH`s can be considered as int…

nucl-th2004★ 2 cited

Nonextensive quantum statistics and saturation of the PMD-SQS optimality limit in hadron-hadron scattering

D. B. Ion, M. L. Ion

In this paper, new results on the analysis in hadron-hadron scattering are obtained by using the nonextensive quantum entropy and principle of minimum distance in the space of quan…