An integral equation for scattering amplitudesn34500* --physics (high energy)--scattering theorydifferential equationselementary particlesfield theoryintegral equationsintegralsmathematicsregge polesscatteringscattering amplitude scattering/amplitudes of, integral equation for studying regge behavior of...
Mandelzweig, Covariant Two-body Equations for Scalar and Dirac Particles, Nucl. Phys. A 503 (1989) 673 [INSPIRE]. ADS Google Scholar Y.A. Simonov and J.A. Tjon, The Feynman-Schwinger representation for the relativistic two particle amplitude in field theory, Annals Phys. 228 (1993) 1...
Using the method of time-dependent perturbation theory from quantum mechanics, we expand the probability amplitude in powers of the matrix elements Ck(t)=Ck(0)+Ck(1)+Ck(2)+... and substitute it into the wave amplitude equation to obtain by order Ck(1)=−i∑k′Ck′(0)Ck−k...
Physics - Popular PhysicsAn equation, fundamental for solar energy applications, can be used to determine the sunrise amplitude at given latitude. It is therefore suitable for being applied to archaeoastronomical calculations concerning the orientation of towns, worship places and buildings. Here we ...
A propos "the restoring force being proportional to the displacement," a textbook that does not use the small-amplitude assumption in the derivation of the wave equation for the string is Fourier Analysis: An Introduction, by Elias M. Stein, Rami Shakarchi, pages 6-7. The vibrating string is...
In Eq. (1) A is the amplitude, f is the phase, and S is the eikonal. For the special case of harmonic waves the phase f is a sinusoidal function of its argument. The form (1) describes an undistorted propagation of a signal. If A is not constant, then the volume of the signal...
references therein. Thus, the discrepancy inH0persists with lower values for the Early Universe probes, and a higher value for the Late Universe probes. S8=σ8Ωm/0.3is a parameter measuring linear fluctuations, whereσ8is the amplitude of linear fluctuations smoothed over8Mpch−1, andΩmis ...
Specifically, we have determined that parasitic reflections at the amplitude modulator are responsible for the reduced spectral width. In addition, our model for a two-level system cannot fully capture the whole physics of a semiconductor amplifier, in particular by neglecting the linewidth enhancement...
For one, separation will be a prominent feature whenever the local effective incidence is large, such as when fast, large amplitude kinematics take place. Solutions to overcome this have been proposed in the literature, such as semi-empirical models for dynamic stall in 2D aerofoil theory [135,...
The amplitude of the sine wave at the four atoms can be treated as coefficients. The coefficients of the atomic orbitals in each molecular orbitals of butadiene molecule can be estimated and are provided in Table 12.2. Table 12.2. The molecular orbitals of butadiene molecule with respective ...