High-energy scattering of particles with anomalous magnetic moments in quantum field theory

1976 ◽  
Vol 29 (2) ◽  
pp. 1003-1011 ◽  
Author(s):  
Nguen Suan Khan ◽  
V. N. Pervushin
2007 ◽  
Vol 22 (39) ◽  
pp. 2949-2954 ◽  
Author(s):  
STEVEN B. GIDDINGS

Three decades of a deepening information paradox suggest the need to revise our basic physical framework. Multiple indicators point toward reassessment of the principle of locality: lack of a precise definition in quantum gravity, behavior of high-energy scattering, hints from strings and AdS/CFT, conundrums of quantum cosmology, and finally lack of good alternative resolutions of the paradox. A plausible conjecture states that the non-perturbative dynamics of gravity is unitary but nonlocal. String theory may directly address these issues but so far important aspects remain elusive. If this viewpoint is correct, critical questions are to understand the "correspondence" limit where nonlocal physics reduces to local quantum field theory, and beyond, to unveil principles of an underlying nonlocal theory.


2012 ◽  
Vol 27 (01) ◽  
pp. 1250004 ◽  
Author(s):  
SUAN HAN NGUYEN ◽  
THI HAI YEN LE ◽  
NHU XUAN NGUYEN

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.


1994 ◽  
Vol 05 (06) ◽  
pp. 1089-1101 ◽  
Author(s):  
LEVAN R. SURGULADZE

A short review of the present status of computer packages for the high order analytical perturbative calculations is presented. The mathematical algorithm and the quantum field theory methods used are briefly discussed. The most recent computer package HEPLoops for analytical computations in high energy physics up to four-loops is also discussed.


2019 ◽  
Vol 36 (24) ◽  
pp. 245007
Author(s):  
Ernesto Flores-González ◽  
Hugo A Morales-Técotl

1971 ◽  
Vol 26 (4) ◽  
pp. 623-630 ◽  
Author(s):  
H Stumpf

Abstract Dynamics of quantum field theory can be formulated by functional equations. To develop a complete functional quantum theory one has to describe the physical information by functional operations only. Such operations have been defined in preceding papers. To apply these operations to physical problems, the corresponding functionals have to be known. Therefore in this paper calculational procedures for functionals are discussed. As high energy phenomena are of interest, the calculational procedures are given for spinor field functionals. Especially a method for the calculation of stationary and Fermion-Fermion scattering functionals is proposed.


1970 ◽  
Vol 33 (7) ◽  
pp. 484-488 ◽  
Author(s):  
B.M. Barbashov ◽  
S.P. Kuleshov ◽  
V.A. Matveev ◽  
V.N. Pervushin ◽  
A.N. Sissakian ◽  
...  

2016 ◽  
Vol 31 (28n29) ◽  
pp. 1645012
Author(s):  
Carlo Ewerz

High energy scattering processes in QCD can be described in terms of interacting pomerons. Vertices for the interaction of pomerons have been derived in perturbative QCD. Their properties hint at the existence of a 2+1-dimensional conformal field theory of interacting pomerons. Here we study in particular the 1-to-2 and the 1-to-3 pomeron vertex and find them to be related to each other by a conformal bootstrap relation.


Sign in / Sign up

Export Citation Format

Share Document