Zobrazeno 1 - 10
of 48
pro vyhledávání: '"R. M. Davidson"'
Publikováno v:
ACS nano. 8(10)
The energetic barriers that atoms and molecules often experience when binding to surfaces are incredibly important to a myriad of chemical and physical processes. However, these barriers are difficult to describe accurately with current computer simu
Autor:
Georgios, Kyriakou, Erlend R M, Davidson, Guowen, Peng, Luke T, Roling, Suyash, Singh, Matthew B, Boucher, Matthew D, Marcinkowski, Manos, Mavrikakis, Angelos, Michaelides, E Charles H, Sykes
Publikováno v:
ACS Nano
Dissociation of molecular hydrogen is an important step in a wide variety of chemical, biological, and physical processes. Due to the light mass of hydrogen, it is recognized that quantum effects are often important to its reactivity. However, unders
Autor:
V. Frolov, D. Koltenuk, P. E. Bosted, L. G. Tang, N. C. Mukhopadhyay, Oliver Keith Baker, Volker D. Burkert, P. Stoler, D. G. Meekins, R. C. Minehart, C. S. Armstrong, C. E. Keppel, Ketevi Assamagan, V. Tadevosian, M. Witkowski, John C. Mitchell, G. Niculescu, J. W. Price, J. Napolitano, S. A. Wood, D. J. Mack, Stephen Avery, W. Hinton, Richard Madey, W. Kim, D. Gaskell, J. A. Dunne, R. M. Davidson, H. Mkrtchyan, T. Eden, A. Ahmidouch, Paul Gueye, M. Nozar, M. Klusman, G. S. Adams, Rolf Ent, R. Carlini, I. Niculescu
Publikováno v:
Physical Review Letters. 82:45-48
Jefferson Lab experiment E94-014 measured the excitation of the Delta (1232) resonance via the reaction p(e,e{prime}p){pi}{sup 0} at Q{sup 2} near 2.8 and 4 Gev{sup 2}. This is the highest Q{sup 2} for which exclusive resonance electroproduction has
Publikováno v:
Physics Letters B. 410:73-78
We examine theoretical implications of studying the differential cross-section and some key polarization observables in the η′ photoproduction reaction off protons, from its threshold to about 2 GeV of cm energy, the region of the so-called “mis
Autor:
H. W. L. Naus, R. M. Davidson
Publikováno v:
Zeitschrift für Physik A Hadrons and Nuclei. 354:329-332
The derivation of the ‘classical’ low-energy theorem (LET) forγp→pπ0 is re-examined and compared to chiral perturbation theory. Both results are correct and are not contradictory; they differ because different expansions of the same quantity
Autor:
E. Ruiz Arriola, R. M. Davidson
Publikováno v:
Physics Letters B, 359. Elsevier
We compute mesonic correlation functions in Euclidean coordinate space within the Nambu and Jona-Lasinio model with explicit scalar, pseudoscalar, vector and axial-vector couplings. After bosonization and application of the Pauli-Villars regularizati
Publikováno v:
Proceedings of the New Zealand Plant Protection Conference. 48:1-6
Autor:
R. M. Davidson
Publikováno v:
Czechoslovak Journal of Physics. 44:365-403
The lecture provides an elementary introduction to photo and electroproduction of pseudoscalar mesons in the resonance region. After discussing the general structure of the elementary production amplitude and its symmetry properties the formalism is
Publikováno v:
Physical Review B. 81
Recent low-temperature scanning-tunneling microscopy experiments [T. Kumagai et al., Phys. Rev. B 79, 035423 (2009)] observed the possible quantum tunneling of hydroxyl groups between two equivalent adsorption configurations on Cu(110). Here we analy
Publikováno v:
Physical Review D. 43:71-94
We investigate theoretical uncertainties and model dependence in the extraction of the nucleon-{Delta}(1232) electromagnetic transition amplitudes from the multipole data base. Our starting point is an effective Lagrangian incorporating chiral symmet