One-loop CHY-integrand of bi-adjoint scalar theory

نویسندگان
چکیده

برای دانلود رایگان 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

Reducing full one-loop amplitudes to scalar integrals at the integrand level

We show how to extract the coefficients of the 4-, 3-, 2and 1-point one-loop scalar integrals from the full one-loop amplitude of arbitrary scattering processes. In a similar fashion, also the rational terms can be derived. Basically no information on the analytical structure of the amplitude is required, making our method appealing for an efficient numerical implementation. e-mail: ossola@inp....

متن کامل

One loop scalar functions in the heavy quark effective theory

Since its early applications [1] the heavy quark symmetry has been one of the key ingredients in the theoretical investigations of hadrons containing a heavy quark. It has been successfully applied to the heavy hadrons spectroscopy, to the inclusive as well as to a number of exclusive decays (for reviews of the heavy quark effective theory and related issues see [2] or [3]). To describe interac...

متن کامل

Scalar one-loop integrals for QCD

We construct a basis set of infra-red and/or collinearly divergent scalar oneloop integrals and give analytic formulas, for tadpole, bubble, triangle and box integrals, regulating the divergences (ultra-violet, infra-red or collinear) by regularization in D = 4− 2ǫ dimensions. For scalar triangle integrals we give results for our basis set containing 6 divergent integrals. For scalar box integr...

متن کامل

One - loop renormalisation of N = 12 supersymmetric gauge theory in the adjoint representation

1 2 supersymmetric gauge theory coupled to chiral matter in the adjoint representation, and investigate the one-loop 1 2 supersymmetric theories (i.e. theories defined on non-anticommutative super-space) have recently attracted much attention[1]–[4]. Such theories are non-hermitian and only have half the supersymmetry of the corresponding N = 1 theory. These theories are not power-counting reno...

متن کامل

Amplitudes for massive vector and scalar bosons in spontaneously-broken gauge theory from the CHY representation

In the formulation of Cachazo, He, and Yuan, tree-level amplitudes for massless particles in gauge theory and gravity can be expressed as rational functions of the Lorentz invariants ka · kb, ǫa · kb, and ǫa · ǫb, valid in any number of spacetime dimensions. We use dimensional reduction of higher-dimensional amplitudes of particles with internal momentum κ to obtain amplitudes for massive parti...

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: Journal of High Energy Physics

سال: 2020

ISSN: 1029-8479

DOI: 10.1007/jhep02(2020)187