Browsing by Subject "Quantum theory"
Now showing items 1-20 of 66
-
Conference Object
Calculation of the decay width of decuplet baryons
(Proceedings of Science (PoS), 2015)We calculate the coupling constant and decay width of the decuplet to octet baryon transitions in lattice QCD using the transfer matrix method. The transition amplitude is related to the coupling constant and via the Fermi's ...
-
Article
Classification of noether symmetries for Lagrangians with three degrees of freedom
(2004)The noether symmetries of the Euler-Lagrange equations for a Hamiltonian system with three degrees were classified. All groups were classified that appeared as symmetries of a general Hamiltonians system of n degrees of ...
-
Conference Object
Computation of correlation matrices for tetraquark candidates with Jp = 0+ and flavor structure q1q2q3q3
(Proceedings of Science (PoS), 2015)The conjecture that several recently observed mesons have a structure, which is not dominated by an ordinary quark-Antiquark pair, but by a four-quark structure, is being actively investigated both theoretical and ...
-
Article
Constraining Gluon Distributions in Nuclei Using Dijets in Proton-Proton and Proton-Lead Collisions at sNN =5.02 TeV
(2018)The pseudorapidity distributions of dijets as functions of their average transverse momentum (pTave) are measured in proton-lead (pPb) and proton-proton (pp) collisions. The data samples were collected by the CMS experiment ...
-
Conference Object
Determination of the Δ resonance width from lattice QCD
(Proceedings of Science (PoS), 2013)A method suitable for extracting resonance parameters of unstable baryons in lattice QCD is examined. The method is applied to the strong decay of the Δ to a pion-nucleon state, extracting the pND coupling constant and Δ ...
-
Article
Diffractive dijet production at √s = 630 and 1800 GeV at the Fermilab Tevatron
(2002)The diffractive dijet production at √s = 630 and 1800 GeV at the Fermilab Tevatron was presented. The β and ξ dependence of the diffractive structure function at √s = 1800 GeV and it was found that it obeyed β-ξ factorization ...
-
Article
Dijet production by double Pomeron exchange at the Fermilab Tevatron
(2000)Dijet production by double Pomeron exchange (DPE) in p̄p collisions at √ s = 1800 GeV was performed. Factorization was tested by comparing the diffractive structure function measured in single diffractive (SD) with that ...
-
Article
Direct Evaluation of the Quark Content of Nucleons from Lattice QCD at the Physical Point
(2016)We evaluate the light, strange, and charm scalar content of the nucleon using one lattice QCD ensemble generated with two degenerate light quarks with mass fixed to their physical value. We use improved techniques to ...
-
Article
Direct measurement of the W Boson width in pp̄ collisions at √s = 1.8 TeV
(2000)The W boson width, ΓW obtained in studies of the transverse-mass spectra of leptonic W decays is measured. Through analysis, the W width is determined from a binned log-likelihood fit to the transverse-mass distribution ...
-
Article
Double diffraction dissociation at the Fermilab Tevatron Collider
(2001)Double diffraction differential cross sections in pp collisions at √s = 1800 and 630 GeV were measured. Results were compared with data at √s = 200 and 900 GeV and with predictions based on Regge theory and factorization. ...
-
Doctoral Thesis Open Access
Dynamical extensions of band theory : non-Hermitian contributions and topological stabilization
(Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2019-05)Υποκινούμενοι από την αυξανόμενη σημαντικότητα των επιφανειακών (ή γενικότερα συνοριακών) φαινομένων σε τοπολογικές καταστάσεις της Συμπυκνωμένης Ύλης, και σε συνδυασμό με την εμπλοκή γεωμετρικών και τοπολογικών εννοιών ...
-
Article
Eight-Dimensional Quantum Hall Effect and "Octonions"
(2003)A generalization of the quantum Hall effect (QHE) where particles move in an eight-dimensional space under an SO(8) gauge field was constructed. A nonrelativistic Hamiltonian for particles moving on the S8 in the presence ...
-
Article
Electron transfer through fluctuating bridges: On the validity of the superexchange mechanism and time-dependent tunneling matrix elements
(2001)An attempt is made to find the most general description of the superexchange mechanism that is valid for time-dependent donor-bridge-acceptor systems. Time-dependent electron-transfer probabilities that involve single MD ...
-
Article
Electronic structure of piezoelectric double-barrier InAs/InP/InAs/InP/InAs (111) nanowires
(2004)The numerical self-consistent solution of the Poisson-Schrodinger equations in cylindrical coordinates for calculating electronic states in the effective mass approximation was implemented. High accuracy and rapid convergence ...
-
Article
Evaluation of disconnected quark loops for hadron structure using GPUs
(2014)A number of stochastic methods developed for the calculation of fermion loops are investigated and compared, in particular with respect to their efficiency when implemented on Graphics Processing Units (GPUs). We assess ...
-
Article
Evaluation of fermion loops applied to the calculation of the η ′ mass and the nucleon scalar and electromagnetic form factors
(2012)The exact evaluation of the disconnected diagram contributions to the flavor-singlet pseudo-scalar meson mass, the nucleon σ-term and the nucleon electromagnetic form factors is carried out utilizing GPGPU technology with ...
-
Conference Object
Few-electron systems in a quantum dot in a magnetic field: The Wigner molecule and paired electron phases
(2006)We have developed a variational many-body description for few-electron systems in a parabolic quantum dot in an external magnetic field. The ground state energy of the electronic system has been theoretically investigated ...
-
Article
Förster resonant energy transfer from an inorganic quantum well to a molecular material: Unexplored aspects, losses, and implications to applications
(2015)A systematic investigation of Förster resonant energy transfer (FRET) is reported within a hybrid prototype structure based on nitride single quantum well (SQW) donors and light emitting polymer acceptors. Self-consistent ...
-
Article
Generators of dynamical symmetries and the correct gauge transformation in the Landau level problem: Use of pseudomomentum and pseudo-angular momentum
(2016)Due to the importance of gauge symmetry in all fields of physics, and motivated by an article written almost three decades ago that warns against a naive handling of gauge transformations in the Landau level problem (a ...
-
Article
Hadron properties from lattice QCD
(2014)We discuss the status of current dyanmical lattice QCD simulations in connection to the emerging results on the low-lying baryon spectrum, excited states of the nucleon and the investigation of the structure of scalar ...