I am writing a paper (revtex4-1, reprint documentclass which I believe uses twocolumn) and need to have a long equation that needs to break the two column format. I've seen answers to this question using multicol but I can't use that class. So does anyone know how to do this from twocolumn class?
I have tried one way that makes the equation a figure but I can't get the alignment with the text correct.
Any help would be greatly appreciated.

lipsumand its command\lipsumis just added to provide some dummy/filler text. – Speravir Mar 27 '14 at 03:52! LaTeX Error: File 'widetext.sty' not found.is it a normal cse? – alper Apr 20 '22 at 12:17widetextpackage, it's an environment defined byrevtex4-1. – Mateus Araújo Feb 07 '23 at 09:29