eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences August 2009 21 2 301 306 jusps-B 1124 article S.B. Mahto 1 J.P. Mahto 2 S.R. Pandit 2 H.O.D., Department of Physics, S.K.M. University, Dumka (Santhal Pragana), Jharkahdna (INDIA), Department of Physics, K.B., College, Bermo (Bokaro) - 824 113 (Jharkhand) (INDIA) Department of Physics. Govt. Polytechnic, Bhagalpur P.O.+P.S. (Barari) <p style="text-align:justify">Kinetic phenomena in the vicinity of electronic topological transition predicted by Lifshitz have been widely studied both theoretically and experimentally. Using one electron Green&#39;s function in the framework of temperature diagrammatic technique developed by Ya. M. Blantr <em>et. al.</em> Nuovo Cimento vol. 12, 1900 (1990), we have studied the relaxation time for EET transition. Our result shows that there is an influence of magnetic field of EET relaxation time <img src="file:///D:/atif/Drive%20E%20data/desktop%20data/Business/journal/JUSPS%20A&amp;B/JUSPS/21(2)/AbstrOE2.JPG" style="height:13px; width:39px" />.</p> https://ultraphysicalsciences.org/paper/1124/ Electron relaxation Electronic Topological Transition presence of magnetic field