QED in the clothed-particle representation: a fresh look at positronium properties treatment
نویسندگان
چکیده
منابع مشابه
Analytic Treatment of Positronium Spin Splittings in Light-Front QED
We study the QED bound-state problem in a light-front hamiltonian approach. Starting with a bare cutoff QED Hamiltonian, H B , with matrix elements between free states of drastically different energies removed, we perform a similarity transformation that removes the matrix elements between free states with energy differences between the bare cutoff, Λ, and effective cutoff, λ (λ < Λ). This gene...
متن کاملA fresh look at preoperative body washing
National guidelines do not support preoperative body washing to reduce surgical site infections, instead recommending bathing or showering with soap. Yet preoperative body washing continues to be widely used in many hospitals across Europe. This paper suggests that existing trials of preoperative body washing, upon which guidelines are based, are dated and proposes a new investigation of preope...
متن کاملA Fresh Look at Vocabulary Spurts
There is currently rather little agreement about the existence of, and explanation for, a vocabulary spurt in children during the second year. Here we apply a Functional Data Analysisbased technique called Automatic Maxima Detection to the problem of finding vocabulary spurts in a sample of 20 children. Even with considerable smoothing of the data, children were found to exhibit multiple vocabu...
متن کاملA Fresh Look at Generalized Veneziano Amplitudes
The dual resonance model, which was a precursor of string theory was based upon the idea that two-particle scattering amplitudes should be expressible equivalently as a sum of contributions of an infinite number of s channel poles each corresponding to a finite number of particles with definite spin, or as a similar sum of t channel poles. The famous example of Veneziano [1] satisfies all these...
متن کاملA Fresh Look at Heart Disease
According to the Centers for Disease Control and Prevention, “Heart disease is the leading cause of death in the United States and is a major cause of disability” (CDC, 2013). Research on heart disease has been ongoing for more than 50 years. Until recently, “the lipid hypothesis of heart disease has dominated medical thinking” (Fallon, Sally, & Enig, Mary, 2009). Cholesterol was found to be a ...
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: SciPost Physics Proceedings
سال: 2020
ISSN: 2666-4003
DOI: 10.21468/scipostphysproc.3.045