Expansion of the boost operator in powers of the coupling constant
A. N. Kvinikhidze, A. M. Khvedelidze
Representation of the boost operator in the form of an ordered exponent  is analysed. A way of expanding this operator over the coupling constant powers is suggested which is of interest for the description of interaction of composite systems with large momenta. Basing on this expansion a “mixed” representation for the form factor of a composite particle is derived which exploits simultaneously the wave functions of a bound state of the usual field theory and the field theory on null-plane. The relation with the calculations in the system $P_z\to\infty$ with longitudinal momentum transfer ($q^+\ne0$) is discussed in the example of calculating the asymptotic behaviour.
PDF file (958 kB)
Theoretical and Mathematical Physics, 1989, 78:3, 252–260
A. N. Kvinikhidze, A. M. Khvedelidze, “Expansion of the boost operator in powers of the coupling constant”, TMF, 78:3 (1989), 357–367; Theoret. and Math. Phys., 78:3 (1989), 252–260
Citation in format AMSBIB
\by A.~N.~Kvinikhidze, A.~M.~Khvedelidze
\paper Expansion of~the boost operator in~powers of~the coupling constant
\jour Theoret. and Math. Phys.
Citing articles on Google Scholar:
Related articles on Google Scholar:
|Number of views:|