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Gupta, Rajan; Park, Sungwoo; Hoferichter, Martin; Mereghetti, Emanuele; Yoon, Boram; Bhattacharya, Tanmoy (2021). Pion-Nucleon Sigma Term from Lattice QCD. Physical review letters, 127(24), p. 242002. American Physical Society 10.1103/PhysRevLett.127.242002