Negative dimensional approach for scalar two-loop three-point and three-loop two-point integrals

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Negative dimensional approach for scalar two-loop three-point and three-loop two-point integrals

The study of quantum field theories in the perturbative regime can sometimes become a very challenging and arduous issue to deal with, especially when one needs to go on calculating multi-loop Feynman integrals. There are several techniques that have been developed and refined in the course of time, but usually the calculations are rather involved and analytic results are difficult to obtain. D...

متن کامل

Numerical Approach to Two-loop Three Point Functions with Masses

The calculation of loop integrals is essential to obtain the precise theoretical prediction for high-energy reactions. Loop integrals for oneloop diagrams can be expressed by logarithms and dilogarithms. For a class of higher order diagrams, compact analytic expressions are obtained. For instance, some two-loop two point functions with single mass(m) are given by functions of x = s/m. As two-lo...

متن کامل

The 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 کامل

Master Integrals for Massless Three-Loop Form Factors: One-Loop and Two-Loop Insertions

The three-loop form factors in massless QCD can be expressed as a linear combination of master integrals. Besides a number of master integrals which factorise into products of one-loop and two-loop integrals, one finds 16 genuine three-loop integrals. Of these, six have the form of a bubble insertion inside a one-loop or two-loop vertex integral. We compute all master integrals with these inser...

متن کامل

Three dimensional loop quantum gravity: coupling to point particles

We consider the coupling between three dimensional gravity with zero cosmological constant and massive spinning point particles. First, we study the classical canonical analysis of the coupled system. Then, we go to the Hamiltonian quantization generalizing loop quantum gravity techniques. We give a complete description of the kinematical Hilbert space of the coupled system. Finally, we define ...

متن کامل

ذخیره 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: Canadian Journal of Physics

سال: 2000

ISSN: 1208-6045,0008-4204

DOI: 10.1139/cjp-78-8-769