Massive spin-2 particles

• Grant number: 13/00653-4
• Support Opportunities: Regular Research Grants
• Start date: April 01, 2013
• End date: September 30, 2014
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal Investigator: Denis Dalmazi
• Grantee: Denis Dalmazi
• Host Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil

Abstract

In this work we investigate new descriptions of spin-2 particles which have been recently suggested in the literature and futher suggestions to be made here. The problem is addressed from two point of views. First we try to classify physically sensible theories in D=4 dimensions starting with a 2nd rank tensor with at most two derivatives in the Lagrangian (2nd order models). In the second approach we include fourth-order (in derivatives) models recently suggested in the literature. They are known as "New Massive Gravity" and $New Massive 4D Gravity" in D=3 and D=4 respectively. We are interested in fourth-order models where all graviton modes propagate in convenient way for large momentum (ultraviolet) in order that end up with a candidate to a renormalizable theory after including self-interactions. The addition of nonlinear terms (self-interaction) and their consequences on unitarity and causality of the starting free models as well as the geometric interpretation of such term will be investigated in detail. (AU)

Scientific publications

(8)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DALMAZI, D.; DOS SANTOS, A. L. R.; MENDONCA, E. L.. Massive ``spin-2{''} theories in arbitrary D >= 3 dimensions. ANNALS OF PHYSICS, v. 354, p. 385-393, MAR 2015. (13/00653-4)

BIAZOTTI, H. A.; DALMAZI, D.; DE GRACIA, G. B.. Dimensional reduction of the massless limit of the linearized `New Massive Gravity'. EUROPEAN PHYSICAL JOURNAL C, v. 74, n. 2, FEB 15 2014. (13/00653-4)

DALMAZI, D.; DOS SANTOS, A. L. R.; MENDONCA, E. L.. Massive spin-2 particles via embedment of the Fierz-Pauli equations of motion. Classical and Quantum Gravity, v. 32, n. 1, JAN 8 2015. (13/00653-4)

DALMAZI, D.. Note on the nonuniqueness of the massive Fierz-Pauli theory and spectator fields. Physical Review D, v. 88, n. 4, AUG 5 2013. (13/00653-4)

BIAZOTTI, H. A.; DALMAZI, D.; DE GRACIA, G. B.. Dimensional reduction of the massless limit of the linearized 'New Massive Gravity'. EUROPEAN PHYSICAL JOURNAL C, v. 74, n. 2, p. 7-pg., 2014-02-15. (13/00653-4)

DALMAZI, D.. Massive spin-2 particle from a rank-2 tensor. Physical Review D, v. 87, n. 12, JUN 19 2013. (13/00653-4)

DALMAZI, D.. A note on the ubiquity of the traceless spin connection in dual massive spin-2 theories. Classical and Quantum Gravity, v. 33, n. 7, APR 7 2016. (13/00653-4)

DALMAZI, D.; DOS SANTOS, A. L. R.; MENDONCA, E. L.. Massive "spin-2" theories in arbitrary D >= 3 dimensions. ANNALS OF PHYSICS, v. 354, p. 9-pg., 2015-03-01. (13/00653-4)