Cairo University

MTPR Journal

 

CROSS-SECTIONS CALCULATIONS FOR PRODUCING PAIR HIGGS BOSONS AND NEUTRALINO VIA THREE NEUTRAL HIGGS BOSON PROPAGATORS

& doi: https://doi.org/10.1142/9789814317511_0036
M. M. AHMED
Physics Department, Helwan University, Cairo, Egypt


Vol./Issue: 11 , id: 339

The production cross-sections calculations for the process . Where represent the three neutral Higgs bosons, are calculated through all the allowed modes of interactions. Which are (1296) situations are consider in two different groups of Feynman diagrams are taken into account. (1) Production of from and Z0 propagators exchange (from 1-864 Feynman diagrams). (2) Production of from propagators and the neutralino is leg (from 865-1296 Feynman diagrams). where (i, j = 1,2,3, and ℓ = 1,2,3,4) The values of the cross sections σ are taken as a function of the incident center of mass energy S. The values of the cross-sections have greatest values at S ranges from 3000 to 3400 GeV., and the against cross section is from rang 2.5 × 10-10-4 × 10-10, and the best calculations have numbers from 865-1080, where the production mechanisms can be detected in mode when the neutralino is leg from positron.