WebHere we collect examples of interesting calculations from textbooks and papers that can be reproduced using FeynCalc.The HTML pages below were generated from example notebooks shipped with the current stable version of Feyncalc. If you have FeynCalc installed, these files are located in WebEnter the email address you signed up with and we'll email you a reset link.

Re-examining the Solar Axion Explanation for the XENON1T Excess

WebFeynman diagrams of the different processes responsible for axion production in the Sun. The Primakoff conversion of photons in the electromagnetic fields of the solar plasma is … Web95% statistical CL [10]. Solar axions are produced mainly by the Primakoff process. The CAST experiment put an upper limit on the solar axion mass to be ma 0.02eV [11]. In the case of globular clus-ters, the limits on axion decay constant is given as fa > 2.3×107 GeV (ma < 0.3eV) when KSVZ model [12,13] is considered while for DFSZ model [12–14] side effects of chlorothalonil

11.5 The Standard Model - University Physics Volume 3 OpenStax

In particle physics, the Primakoff effect, named after Henry Primakoff, is the resonant production of neutral pseudoscalar mesons by high-energy photons interacting with an atomic nucleus. It can be viewed as the reverse process of the decay of the meson into two photons and has been used for the measurement of the decay width of neutral mesons. It could also take place in stars and be a production mechanism of certain hypothetical particles, … WebFigure 4. Some Feynman diagrams for the most relevant solar axion emission reactions included in this work. - "CAST constraints on the axion-electron coupling" http://fma.if.usp.br/%7Eburdman/QFT1/lecture_14.pdf the pioneer woman merc homemade