Pascual, Pedro, 1934-2006Taron i Roca, JosepTarrach, R., 1948-2010-05-062010-05-0619890556-2821https://hdl.handle.net/2445/12445The part proportional to the Euler-Poincar characteristic of the contribution of spin-2 fields to the gravitational trace anomaly is computed. It is seen to be of the same sign as all the lower-spin contributions, making anomaly cancellation impossible. Subtleties related to Weyl invariance, gauge independence, ghosts, and counting of degrees of freedom are pointed out.7 p.application/pdfeng(c) The American Physical Society, 1989Teoria quànticaTeoria de camps (Física)Partícules (Física nuclear)Relativitat especial (Física)Quantum theoryField theory (Physics)Particles (Nuclear physics)Special relativity (Physics)info:eu-repo/semantics/article19457info:eu-repo/semantics/openAccess