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dc.contributor.authorDemir, Durmuş Ali
dc.contributor.authorPak, Namık Kemal
dc.date.accessioned2017-01-03T07:22:01Z
dc.date.available2017-01-03T07:22:01Z
dc.date.issued2009-04
dc.identifier.citationDemir, D. A., and Pak, N. K. (2009). General tensor Lagrangians from the gravitational Higgs mechanism. Classical and Quantum Gravity, 26(10). doi:10.1088/0264-9381/26/10/105018en_US
dc.identifier.issn0264-9381
dc.identifier.urihttp://dx.doi.org/10.1088/0264-9381/26/10/105018
dc.identifier.urihttp://hdl.handle.net/11147/2699
dc.description.abstractThe gravitational Higgs mechanism proposed by 't Hooft in arXiv:0708.3184 involves the spacetime metric gμv as well as the induced metric ḡμν oc ηab∂μΦ a∂νφb where φ(a = 0,..., 3), as we call it, break all four diffeomorphisms spontaneously via the vacuum expectation values (φa) ∝ xa. In this framework, we construct and analyze the most general action density in terms of various invariants involving the curvature tensors, connexion coefficients, and the contractions and the determinants of the two metric fields. We show that this action admits a consistent expansion about the flat background such that the resulting Lagrangian possesses several novel features not found in the linearized Einstein-Hilbert Lagrangian with FierzPauli mass term (LEHL-FP): (i) its kinetic part generalizes that of LELHL-FP by weighing the corresponding structures with certain coefficients generated by invariants, (ii) the entire Lagrangian is ghost- and tachyon-free for mass terms not necessarily in the Fierz-Pauli form, and, (iii) a consistent mass term is generated with no apparent need to higher derivative couplings.en_US
dc.description.sponsorshipTurkish Academy of Sciencesen_US
dc.language.isoengen_US
dc.publisherIOP Publishingen_US
dc.relation.isversionof10.1088/0264-9381/26/10/105018en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectModified theories of gravityen_US
dc.subjectLagrangian mechanicsen_US
dc.subjectHiggs mechanismen_US
dc.subjectSpontaneous and radiative symmetry breakingen_US
dc.titleGeneral tensor Lagrangians from the gravitational Higgs mechanismen_US
dc.typearticleen_US
dc.contributor.authorIDTR1918en_US
dc.contributor.iztechauthorDemir, Durmuş Ali
dc.relation.journalClassical and Quantum Gravityen_US
dc.contributor.departmentIzmir Institute of Technology. Physicsen_US
dc.identifier.volume26en_US
dc.identifier.issue10en_US
dc.identifier.wosWOS:000266208400018
dc.identifier.scopusSCOPUS:2-s2.0-77955223172
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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