Symmetric point four-point functions at one loop in QCD
نویسندگان
چکیده
منابع مشابه
Analytic Continuation of Massless Two-Loop Four-Point Functions
We describe the analytic continuation of two-loop four-point functions with one off-shell external leg and internal massless propagators from the Euclidean region of space-like 1→ 3 decay to Minkowskian regions relevant to all 1→ 3 and 2→ 2 reactions with one space-like or time-like off-shell external leg. Our results can be used to derive two-loop master integrals and unrenormalized matrix ele...
متن کاملDifferential Equations for Two-Loop Four-Point Functions
At variance with fully inclusive quantities, which have been computed already at the twoor three-loop level, most exclusive observables are still known only at one-loop, as further progress was hampered so far by the greater computational problems encountered in the study of multi-leg amplitudes beyond one loop. We show in this paper how the use of tools already employed in inclusive calculatio...
متن کاملThe Two and Three Point One Loop Functions
In the present paper the two and three point functions, which occur at the study of the various physical processes are considered. The investigation is done in the framework of the perturbation theory at the one loop level. The general analytical and asymptotic expressions for these functions are obtained.
متن کاملGeneral massive one-loop off-shell three-point functions
In this work we compute the most general massive one-loop off-shell three-point vertex in D-dimensions, where the masses, external momenta, and exponents of propagators are arbitrary. This follows our previous paper in which we have calculated several new hypergeometric series representations for massless and massive (with equal masses) scalar one-loop three-point functions, in the negative dim...
متن کاملThree-Point Functions in N = 4 SYM Theory at One-Loop
We analyze the one-loop correction to the three-point function coefficient of scalar primary operators in N = 4 SYM theory. By applying constraints from the superconformal symmetry, we demonstrate that the type of Feynman diagrams that contribute depends on the choice of renormalization scheme. In the planar limit, explicit expressions for the correction are interpreted in terms of the hamilton...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2017
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.95.065013