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
24 papers · 1 filter
Invariance quantum group of the fermionic oscillator
M. Arik, S. Gun, A. Yildiz
The fermionic oscillator defined by the algebraic relations cc^*+c^*c=1 and c^{2}=0 admits the homogeneous group O(2) as its invariance group. We show that, the structure of the in…
The anticommutator spin algebra, its representations and quantum group invariance
M. Arik, U. Kayserilioglu
We define a 3-generator algebra obtained by replacing the commutators by anticommutators in the defining relations of the angular momentum algebra. We show that integer spin repres…
Dynamical derivation of Bode's law
Robert W. Bass
In a planetary or satellite system, idealized as n small bodies in initially coplanar, concentric orbits around a large central body, obeying Newtonian point-particle mechanics, re…
Higher correlations of divisor sums related to primes III: k-correlations
Daniel A. Goldston, Cem Yalcin Yildirim
We obtain the general k-correlations for a short divisor sum related to primes.
Dark matter, density perturbations and structure formation
A. Del Popolo
This paper provides a review of the variants of dark matter (CDM, HDM) which are thought to be fundamental components of the universe and their role in origin and evolution of stru…
Fourth Generation Pseudoscalar Quarkonium Production and Observability at Hadron Colliders
E. Arik, O. Cakir, S. A. Cetin +1
The pseudoscalar quarkonium state, eta_4 1^S_0, formed by the Standard Model (SM) fourth generation quarks, is the best candidate among the fourth generation quarkonia to be produc…
High velocity clumps and cluster of galaxies evolution
A. Del Popolo, M. Gambera
We study the effect of the interaction between small scale clumps having velocities larger than the average escape velocity v_{\rm esc} and bound clumps (having v<v_{\rm esc}), on…
The Effects of Shear and Rotation Anisotropy Upon the Process of Gravitational Instability
A. Del Popolo, E. N. Ercan, M. Gambera
In this paper, we study the role of shear fields on the evolution of density perturbations embedded in a Friedmann flat background universe, by studying the evolution of a homogene…
On two dimensional coupled bosons and fermions
O. Teoman Turgut
We study complex bosons and fermions coupled through a generalized Yukawa type coupling in the large-N_c limit following ideas of Rajeev [Int. Jour. Mod. Phys. A 9 (1994) 5583]. We…
First Observation of the Doubly Charmed Baryon Xi_cc^+
The SELEX Collaboration, M. Mattson
We observe a signal for the doubly charmed baryon Xi_cc^+ in the charged decay mode Xi_cc^+ --> Lambda_c^+ K- pi+ in data from SELEX, the charm hadro-production experiment at Fermi…
Has the anomalous single production of the fourth SM family quarks decaying into light Higgs boson been observed by CDF?
E. Arik, O. Cakir, S. Sultansoy
Superjet events observed by the CDF Collaboration are interpreted as anomalous single production of the fourth SM family u_4 quark, decaying into a new light scalar particle. The s…
Anomalous single production of the fourth SM family quarks at Tevatron
E. Arik, O. Cakir, S. Sultansoy
Possible single productions of fourth family u_{4} and d_{4} quarks via anomalous q_{4}qV interactions at Tevatron are studied. Signature of such processes are discussed and compar…
Non-commutative phase and the unitarization of GL_{p,q}(2)
Metin Arik, Burak T. Kaynak
In this paper, imposing hermitian conjugate relations on the two-parameter deformed quantum group GL_{p,q}(2) is studied. This results in a non-commutative phase associated with th…
Trapping photons by a line singularity
Metin Arik, Ozgur Delice
We present cylindrically symmetric, static solutions of the Einstein field equations around a line singularity such that the energy momentum tensor corresponds to infinitely thin p…
A theoretical study of the mass temperature relation for clusters of galaxies
A. Del Popolo
I derive the mass-temperature relation and its time evolution for clusters of galaxies in different cosmologies by means of two different models. The first one is a modification an…
Randall-Sundrum Zero Mode as a Penrose Limit
R. Gueven
A generalization of the limiting procedure of Penrose, which allows non-zero cosmological constants and takes into account metrics that contain homogeneous functions of degree zero…
Consequences of the extra SM families on the Higgs boson production at Tevatron and LHC
E. Arik, O. Cakir, S. A. Cetin +1
The latest electroweak precission data allow the existence of additional chiral generations in the standard model. We study the influence of extra generations on the production of…
On the evolution of aspherical perturbations in the universe: an analytical model
A. Del Popolo
I study the role of shear fields by using an analytical approximate solution for the equations of motion of homogeneous ellipsoids embedded in a homogeneous background. The equatio…
Differential calculus on the h-superplane
Salih Celik, Sultan A. Celik, Metin Arik
A non-commutative differential calculus on the -superplane is presented via a contraction of the -superplane. An R-matrix which satisfies both ungraded and graded Yang-Baxter…
Large N limit of SO(N) scalar gauge theory
E. Toprak, O. T. Turgut
In this paper we study the large limit of SO(N_c) gauge theory coupled to a real scalar field following ideas of Rajeev. We see that the phase space of this resulting classic…
Large N limit of SO(N) gauge theory of fermions and bosons
E. Toprak, O. T. Turgut
In this paper we study the large N_c limit of SO(N_c) gauge theory coupled to a Majorana field and a real scalar field in 1+1 dimensions extending ideas of Rajeev. We show that the…
Generalised Thurston-Bennequin invariants for real algebraic surface singularities
Ferit Ozturk
A generalised Thurston-Bennequin invariant for a Q-singularity of a real algebraic variety is defined as a linking form on the homologies of the real link of the singularity. The m…
On three dimensional coupled bosons
O. Teoman Turgut
This is a new version of the paper, which uses the same methods as in the previous version, but the model is now different. We study two complex scalar fields coupled through a qua…
Do Young Neutron Stars Which Show Themselves As AXPs, SGRs and Radio Pulsars Accrete?
S. O. Tagieva, E. Yazgan, A. Ankay
We examined the fall-back disk models, and in general accretion, proposed to explain the properties of anomalous X-ray pulsars (AXPs), soft gamma repeaters (SGRs), and radio pulsar…