CT-DegradBench: A Physics-Informed Benchmark for CT Degradation Detection and Severity Estimation. - Yousra Nabila Taifour; Marouane Tliba; Zuheng Ming; Marie Luong; Nour Aburaed; Aladine Chetouani; Gorkem Durak; Alessandro Bruno; Faouzi Alaya Cheikh; Habib Zaidi; Ulas Bagci; Azeddine Beghdadi (CoRR, 2026)