Results 41 to 50 of about 1,029,566 (295)

Linear scaling computation of the Fock matrix. VII. Periodic density functional theory at the Γ point [PDF]

The Journal of Chemical Physics, 2005
Linear scaling quantum chemical methods for density functional theory are extended to the condensed phase at the Γ point. For the two-electron Coulomb matrix, this is achieved with a tree-code algorithm for fast Coulomb summation [M. Challacombe and E. Schwegler, J. Chem. Phys.
Tymczak, C. J., Challacombe, Matt
openaire   +3 more sources

Scaling relations for the entire spectrum in mass-deformed conformal gauge theories [PDF]

, 2011
We consider mass-deformed conformal gauge theories (mCGT) and investigate the scaling behaviour of hadronic observables as a function of the fermion mass. Applying renormalization group arguments directly to matrix elements, we find m_H ~ m^{1/(1+gamma*)}
Del Debbio, Luigi, Zwicky, Roman
core   +3 more sources

Multiple receptor-ligand interactions direct tissue resident gamma delta T cell activation

Frontiers in Immunology, 2014
Gamma delta T cells represent a major T cell population in epithelial tissues, such as skin, intestine, and lung, where they function in maintenance of the epithelium and provide a crucial first line defense against environmental and pathogenic insults.
Deborah A. Witherden, Kevin eRamirez, Wendy L. Havran   +2 more
doaj   +1 more source

A consistent treatment for pion form factors in space-like and time-like regions [PDF]

, 2001
We write down some relevant matrix elements for the scattering and decay processes of the pion by considering a quark-meson vertex function. The pion charge and transition form factors $F_\pi$, $F_{\pi\gamma}$, and $F_{\pi\gamma^*}$ are extracted from ...
A. Dubin, A. Khodjamirian, B. Melic, C. J. Bebek, C. Y. Cheung, Chien-Wen Hwang, D. Daniel, D. E. Groom, E. B. Dally, F. Cardarelli, G. Köpp, G. P. Lepage, H. M. Choi, H. M. Choi, H. N. Li, H. Y. Cheng, I. V. Anikin, I. V. Musatov, J. Gao, J. Gronberg, J. Volmer, K. S. Babu, L. Bergström, L. Bergström, L. L. Nemenov, Ll. Ametller, M. A. Schardt, M. A. Shifman, M. A. Shifman, N. B. Demchuk, N. M. Kroll, N. P. Samios, P. Brauel, P. J. O’Donnell, P. J. O’Donnell, P. J. O’Donnell, P. Kessler, P. Kroll, P. L. Chung, S. D. Drell, S. L. Adler, S. Ong, S. R. Amendolia, T. P. Cheng, V. M. Braun, W. Jaus, W. Jaus, W. Jaus, W. M. Zhang, W. M. Zhang   +49 more
core   +2 more sources

A Consistent Meson-Field-Theoretical Description of PP-Bremsstrahlung [PDF]

, 1996
A parameter-free and relativistic extension of the RuhrPot meson-baryon model is used to define the dominant isoscalar meson-exchange currents. We compute pp-bremsstrahlung observables below the $\pi-$production threshold using a relativistic hadronic ...
Eden, J. A., Gari, M. F.
core   +2 more sources

Matrix of Response Functions for Deconvolution of Gamma-ray Spectra

Physics Procedia, 2015
AbstractAn approach for creation the response functions‘matrix for the xenon gamma-ray detector is discussed. A set of gamma-ray spectra was obtained by Geant4 simulation to generate the matrix. Iterative algorithms used allow to deconvolve and restore initial gamma-ray spectra.
Shustov, A.E., Ulin, S.E.
openaire   +1 more source

Measurement of the full excitation spectrum of the 7Li(p,{\gamma}){\alpha}{\alpha} reaction at 441 keV

, 2018
A current challenge for ab initio calculations is systems that contain large continuum contributions such as 8Be. We report on new measurements of radiative decay widths in this nucleus that test recent Green's function Monte Carlo calculations ...
Fynbo, Hans Otto Uldall, Kirsebom, Oliver Sølund, Munch, Michael, Riisager, Karsten, Swartz, Jacobus Andreas   +4 more
core   +2 more sources

Precision tests of the J/{\psi} from full lattice QCD: mass, leptonic width and radiative decay rate to {\eta}_c [PDF]

, 2012
We calculate the J/{\psi} mass, leptonic width and radiative decay rate to \gamma \eta_c from lattice QCD including u, d and s quarks in the sea for the first time.
C. McNeile, C. T. H. Davies, E. Follana, G. C. Donald, G. P. Lepage, J. Koponen, K. Hornbostel, null null, R. J. Dowdall   +8 more
core   +3 more sources

Exchange Coupling of Paramagnetic Ions in a Polyoxometalate Matrix:  Density Functional Study of Diiron(III) Substituted γ-Silicotungstates [PDF]

Inorganic Chemistry, 2004
The quantum chemical (density functional) analysis of the antiferromagnetic interactions between the two iron centers incorporated into the gamma-silicotungstate is performed. The influence of the polyoxometalate framework on the exchange coupling within the diiron core unit is studied.
Zueva, Ekaterina, Chermette, Henry, Borshch, Serguei   +2 more
openaire   +2 more sources

On a coupled system of fractional $ (p, q) $-differential equation with Lipschitzian matrix in generalized metric space

AIMS Mathematics, 2022
This work is concerned with the study of the existing solution for the fractional $ (p, q) $-difference equation under first order $ (p, q) $-difference boundary conditions in generalized metric space. To achieve the solution, we combine some contraction
Abdellatif Boutiara, J. Alzabut, M. Ghaderi, S. Rezapour   +3 more
semanticscholar   +1 more source