Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- European Organization for Nuclear ResearchCH2.4k papers
- Universidad Autónoma de MadridES2.3k papers
- Rutherford Appleton LaboratoryGB2.3k papers
- University of BelgradeRS2.3k papers
- National and Kapodistrian University of AthensGR2.3k papers
- University of IowaUS2.3k papers
- Charles UniversityCZ2.3k papers
- The Ohio State UniversityUS2.3k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT2.2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PaviaIT2.2k papers
- Centre National de la Recherche ScientifiqueFR2.2k papers
23 papers · 1 filter
Non-Abelian pp-waves in D=4 supergravity theories
M. Cariglia, G. W. Gibbons, R. Guven +1
The non-Abelian plane waves, first found in flat spacetime by Coleman and subsequently generalized to give pp-waves in Einstein-Yang-Mills theory, are shown to be 1/2 supersymmetri…
Multi-Spin Giants
S. Arapoglu, N. S. Deger, A. Kaya +2
We examine spherical p-branes in AdS_m x S^n, that wrap an S^p in either AdS_m (p=m-2) or S^n (p=n-2). We first construct a two-spin giant solution expanding in S^n and has spins b…
Improvements in the M-T relation and mass function and the measured Omega_m through clusters evolution
A. Del Popolo
In this paper, I revisit the constraints obtained by several authors (Reichart et al. 1999; Eke et al. 1998; Henry 2000) on the estimated values of Omega_m, n and sigma_8 in the li…
Search for anomalous single production of the fourth SM family quark decaying into a light scalar
E. Arik, O. Cakir, S. Sultansoy
Superjet events observed by the CDF Collaboration are interpreted as anomalous single production of the fourth SM family quark, decaying into a new light scalar particle. The…
Birth rates of different types of neutron star and possible evolutions of these objects
Oktay H. Guseinov, Askin Ankay, Sevinc O. Tagieva
We estimate the spatial densities of different types of neutron star near the Sun. It is shown that the distances of dim isolated thermal neutron stars must be on average about 300…
Two-parameter deformed supersymmetric oscillators with SUq1/q2(n|m)-covariance
Abdullah Algin, Metin Arik, Ali Serdar Arikan
A two-parameter deformed superoscillator system with SUq1/q2(n|m)-covariance is presented and used to construct a two-parameter deformed N=2 SUSY algebra. The Fock space representa…
Thin Disk Models of Anomalous X-ray Pulsars
K. Yavuz Ekşi, M. Ali Alpar
We discuss the options of the fall-back disk model of Anomalous X-Ray Pulsars (AXPs). We argue that the power-law index of the mass inflow rate during the propeller stage can be lo…
Can Thin Disks Produce Anomalous X-Ray Pulsars?
K. Yavuz Eksi, M. Ali Alpar
We investigate whether young neutron stars with fall-back disks can produce Anomalous X-Ray Pulsars (AXPs) within timescales indicated by the ages of associated supernova remnants.…
A search for the fourth SM family quarks at Tevatron
E. Arik, O. Cakir, S. Sultansoy
It is shown that the fourth standard model (SM) family quarks can be observed at the Fermilab Tevatron if their anomalous interactions with known quarks have sufficient strength.
Small-world communication of residues and significance for protein dynamics
Ali Rana Atilgan, Pelin Akan, Canan Baysal
It is not merely the position of residues that are of utmost importance in protein function and stability, but the interactions between them. We illustrate, by using a network cons…
Planetary migration in evolving planetesimals discs
S. Yesilyurt, A. Del Popolo, N. Ercan
In the current paper, we further improved the model for the migration of planets introduced in Del Popolo et al. (2001) and extended to time-dependent planetesimal accretion disks…
3-Branes and Uniqueness of the Salam-Sezgin Vacuum
G. W. Gibbons, R. Guven, C. N. Pope
We prove the uniqueness of the supersymmetric Salam-Sezgin (Minkowski)_4\times S^2 ground state among all nonsingular solutions with a four-dimensional Poincare, de Sitter or anti-…
Gravitational hedgehog, stringy hedgehog and stringy sphere
Ozgur Delice
We investigate the solutions of Einstein equations such that a hedgehog solution is matched to different exterior or interior solutions via a spherical shell. In the case where bot…
Einstein spaces in warped geometries in five dimensions
M. Arik, A. Baykal, M. C. Çalik +2
We investigate five dimensional Einstein spaces in warped geometries from the point of view of the four dimensional physically relevant Robertson-Walker-Friedman cosmological metri…
A Note on Supergravity Solutions for Partially Localized Intersecting Branes
S. Arapoglu, N. S. Deger, A. Kaya
Using the method developed by Cherkis and Hashimoto we construct partially localized D3/D5(2), D4/D4(2) and M5/M5(3) supergravity solutions where one of the harmonic functions is g…
Fine Tuning and Six-Dimensional Gauged Supergravity Vacua
R. Guven, James T. Liu, C. N. Pope +1
We find a new family of supersymmetric vacuum solutions in the six-dimensional chiral gauged N=(1,0) supergravity theory. They are generically of the form AdS_3 x S^3, where the 3-…
Axion searches at CERN with the CAST Telescope
C. Eleftheriadis et al
The CERN Axion Solar Telescope (CAST) searches for axions coming from photon to axion conversion in the sun's core, as stated by the Primakoff effect. Axions arise in particle phys…
Numerical tests of dynamical friction in gravitational inhomogeneous systems
A. Del Popolo
In this paper, I test by numerical simulations the results of Del Popolo & Gambera (1998),dealing with the extension of Chandrasekhar and von Neumann's analysis of the statistics o…
Effects of the background radiation on radio pulsar and supernova remnant searches and the birth rates of these objects
Askin Ankay, Oktay H. Guseinov, Sevinc O. Tagieva
In different directions of the Galaxy the Galactic background radio radiation and radiation of complex star formation regions which include large number of OB associations have dif…
The Relation Between the Surface Brightness and the Diameter for Galactic Supernova Remnants
Oktay H. Guseinov, Askin Ankay, Aytap Sezer +1
In this work, we have constructed a relation between the surface brightness () and diameter (D) of Galactic C- and S-type supernova remnants (SNRs). In order to calibrate the $Σ…
Multiple Photonic Shells Around a Line Singularity
Metin Arik, Ozgur Delice
Line singularities including cosmic strings may be screened by photonic shells until they appear as a planar wall.
Evolution of planetesimal discs and planets migration
A. Del Popolo, S. Yesilyurt, N. Ercan
In this paper, we further develop the model for the migration of planets introduced in Del Popolo, Gambera and Ercan, and extended to time-dependent planetesimal accretion disks in…
Turkish Comments on "Future Perspectives in HEP"
Engin Arik, and Saleh Sultansoy
These comments were prepared during the ICFA Seminar on "Future Persrectives in High Energy Physics" held at CERN (8-11 October 2002) and partially presented at the Panel and Gener…