Scalar-involved three-point Green functions and their phenomenology
نویسندگان
چکیده
منابع مشابه
Phenomenology of scalar leptoquarks
We study the simplest renormalizable scalar leptoquark models where the standard model is augmented only by one additional scalar representation of SUð3Þ SUð2Þ Uð1Þ. The requirement that there be no proton decay from renormalizable interactions singles out two such models, one of which exhibits an unusual top mass enhancement of the ! e decay rate. We analyze the phenomenology of the model with...
متن کاملPhenomenology of Scalar Mesons
A separable potential model of three coupled channels ππ, KK and an effective 2π2π has been constructed and applied in the analysis of the isoscalar S-wave ππ and KK phase shifts and inelasticities. A relatively narrow scalar resonance of mass 1400-1460 MeV has been found. This resonance is consistent with the recent CERN observation of an eventual scalar glueball at 1500 MeV. Other resonances ...
متن کاملMassless One - Loop Scalar Three - Point Integral and Associated Clausen , Glaisher and L - Functions
The massless one-loop three-point integral is obtained in terms of associated Clausen functions. The expression is manifestly symmetric in the three external variables. The main 'features of associated Clausen functions and their series expansions are presented. We also introduce the L-functions as analytical extensions of the associated Clausen functions.
متن کاملParticle Interpretations and Green Functions for a Free Scalar Field∗
The formalism of Ashtekar and Magnon [2] for the definition of particles in quantum field theory in curved spacetime is further developed. The relation between basic objects of this formalism (e.g., the complex structure) and different Green functions is found. It allows one to derive composition laws for Green functions. The relation of two definitions of particles is reformulated in the forma...
متن کاملNegative 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 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: 2019
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.99.114015