TY - RPRT TI - Open string amplitudes: singularities, asymptotics and new representations AU - Arkani-Hamed, Nima [Institute for Advanced Study, Princeton, NJ (United States)] AU - Figueiredo, Carolina [Princeton University, NJ (United States)] (ORCID:0000000273989089) AU - Remmen, Grant N. [New York University, NY (United States)] (ORCID:0000000165698866) PY - 2025 DO - 10.1007/jhep04(2025)039 UR - https://www.osti.gov/biblio/2561313 ID - 2561313 ER -