Scattering of composite particles and the quasipotential approach in quantum field theory

1975 ◽  
Vol 25 (1) ◽  
pp. 963-966 ◽  
Author(s):  
V. R. Garsevanishvili ◽  
A. N. Kvinikhidze ◽  
V. A. Matveev ◽  
A. N. Tavkhelidze ◽  
R. N. Faustov
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Composite Particles ◽  
Quantum Field ◽  
Quasipotential Approach

scholarly journals HIGH ENERGY SCATTERING IN THE QUASIPOTENTIAL APPROACH

2012 ◽  
Vol 27 (01) ◽  
pp. 1250004 ◽  
Author(s):  
SUAN HAN NGUYEN ◽  
THI HAI YEN LE ◽  
NHU XUAN NGUYEN
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Asymptotic Behavior ◽  
Scattering Amplitude ◽  
High Energy ◽  
Quantum Field ◽  
Quasipotential Approach ◽  
Scalar Particles ◽  
Systematic Scheme ◽  
High Energy Scattering

Asymptotic behavior of the scattering amplitude for two scalar particles by scalar, vector and tensor exchanges at high energy and fixed momentum transfers is reconsidered in quantum field theory. In the framework of the quasipotential approach and the modified perturbation theory a systematic scheme of finding the leading eikonal scattering amplitudes and its corrections are developed and constructed. The connection between the solutions obtained by quasipotential and functional approaches is also discussed. The first correction to leading eikonal amplitude is found.

Perturbative Computation in a Deformed Quantum Field Theory

2003 ◽  
Vol 18 (12) ◽  
pp. 2025-2031 ◽  
Author(s):  
V. B. Bezerra ◽  
E. M. F. Curado ◽  
M. A. Rego-Monteiro
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Phenomenological Theory ◽  
Second Order ◽  
Composite Particles ◽  
Quantum Field ◽  
Coupling Constant ◽  
Scattering Process

We present the result concerning the perturbative computation of the scattering process 1 + 2 → 1′ + 2′ up to second order in the coupling constant. This was obtained in the context of a deformed quantum field theory which is interpreted as a phenomenological theory describing the scattering of spin-0 composite particles.

A Review of Conformal Field Theory in 2D

2014 ◽  
Vol 6 (2) ◽  
pp. 1079-1105
Author(s):  
Rahul Nigam
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Conformal Field Theory ◽  
Statistical Mechanics ◽  
Critical Behavior ◽  
Verma Module ◽  
Virasoro Algebra ◽  
Quantum Field ◽  
Conformal Field ◽  
Insight Into

In this review we study the elementary structure of Conformal Field Theory in which is a recipe for further studies of critical behavior of various systems in statistical mechanics and quantum field theory. We briefly review CFT in dimensions which plays a prominent role for example in the well-known duality AdS/CFT in string theory where the CFT lives on the AdS boundary. We also describe the mapping of the theory from the cylinder to a complex plane which will help us gain an insight into the process of radial quantization and radial ordering. Finally we will develop the representation of the Virasoro algebra which is the well-known "Verma module".  

Some remarks on a deformed quantum field theory

2002 ◽  
Author(s):  
Marco Aurelio Do Rego Monteiro ◽  
V. B. Bezerra ◽  
E. M.F. Curado
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Quantum Field
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