2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49960We extend the recent computation of the tachyon potential by Berkovits, Sen and Zwiebach by including level two fields and keeping up to level four terms in the action. We find 90.5% of the expected result.17 pages, one figureHigh Energy Physics - Theorytext