Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Lahiff, A. D."'
Autor:
Afnan, I. R., Lahiff, A. D.
The Bethe-Salpeter (BS) amplitude for $\pi N$ scattering is evaluated at the off mass shell points corresponding to the Low Energy Theorems (LET) based on PCAC and current algebra. The results suggest a way of maintaining consistency between BS equat
Externí odkaz:
http://arxiv.org/abs/nucl-th/0210027
Autor:
Lahiff, A. D., Afnan, I. R.
Publikováno v:
Phys.Rev. C66 (2002) 044001
We investigate the relation between different three-dimensional reductions of the Bethe-Salpeter equation and the analytic structure of the resultant amplitudes in the energy plane. This correlation is studied for both the $\phi^2\sigma$ interaction
Externí odkaz:
http://arxiv.org/abs/nucl-th/0205076
Autor:
Lahiff, A. D.
Publikováno v:
PiN Newslett. 16 (2002) 385-387
A covariant meson-exchange model of the anti-kaon nucleon interaction within the framework of the Bethe-Salpeter equation is presented. With just one free parameter we are able to get a good description of the available experimental data from below t
Externí odkaz:
http://arxiv.org/abs/nucl-th/0110028
Autor:
Lahiff, A. D., Afnan, I. R.
Publikováno v:
PiN Newslett. 16 (2002) 92-97
A covariant model of elastic pion-nucleon scattering based on the Bethe-Salpeter equation is presented. We obtain a good description of the S- and P-wave phase shifts up to 360 MeV laboratory energy. We also compare results from the K-matrix approach
Externí odkaz:
http://arxiv.org/abs/nucl-th/0109054
Publikováno v:
Phys.Lett. B521 (2001) 204-210
We solve the Bethe-Salpeter equation for two-particle scattering in a field-theoretical model using two lagrangians related by a field transformation. The kernel of the equation consists of the sum of all tree-level diagrams for each lagrangian. The
Externí odkaz:
http://arxiv.org/abs/nucl-th/0106057
Autor:
Lahiff, A. D., Afnan, I. R.
Publikováno v:
Phys.Rev. C60 (1999) 024608
A relativistic description of pion-nucleon scattering based on the four-dimensional Bethe-Salpeter equation is presented. The kernel of the equation consists of s- and u-channel nucleon and delta pole diagrams, as well as rho and sigma exchange in th
Externí odkaz:
http://arxiv.org/abs/nucl-th/9903058
Autor:
Lahiff, A. D., Afnan, I. R.
Publikováno v:
Few Body Syst.Suppl.10:147-150,1999
A covariant model of elastic pion-nucleon scattering based on the Bethe-Salpeter equation is presented. The kernel consists of s- and u-channel nucleon and delta poles, along with rho and sigma exchange in the t-channel. A good fit is obtained to the
Externí odkaz:
http://arxiv.org/abs/nucl-th/9810058
Autor:
Lahiff, A. D., Afnan, I. R.
Publikováno v:
Phys.Rev.C56:2387-2395,1997
Equal-time Green's function is used to derive a three-dimensional integral equation from the Bethe-Salpeter equation. The resultant equation, in the absence of anti-particles, is identical to the use of time-ordered diagrams, and has been used within
Externí odkaz:
http://arxiv.org/abs/nucl-th/9708037
Autor:
Afnan, I. R.1 Iraj.Afnan@Flinders.edu.au, Lahiff, A. D.2
Publikováno v:
European Physical Journal A -- Hadrons & Nuclei. Nov2003, Vol. 18 Issue 2/3, p301-304. 4p.
Autor:
Bogdanova, Y. V., Owen, C. J., Dunlop, M. W., Wild, J. A., Davies, J. A., Lahiff, A. D., Taylor, M. G. G. T., Fazakerley, A. N., Dandouras, I., Carr, C. M., Lucek, E. A., Rème, H.
On 28 February 2004 the configuration of the Cluster and Double Star TC1 satellites facilitated a simultaneous study of plasma properties inside the low-latitude boundary layer (LLBL) near the subsolar magnetopause and inside the midaltitude cusp dur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______201::277bc02c35d6fef54f84815d6b18acb4
https://doi.org/10.1029/2007JA012762
https://doi.org/10.1029/2007JA012762