"Cosmological" constant and scalar gravitons

Lord, E. A. ; Sinha, K. P. ; Sivaram, C. (1974) "Cosmological" constant and scalar gravitons Progress of Theoretical Physics, 52 (1). pp. 161-169. ISSN 0033-068X

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Official URL: http://ptp.ipap.jp/link?PTP/52/161/

Related URL: http://dx.doi.org/10.1143/PTP.52.161


If a cosmological term is included in the equations of general relativity, the linearized equations can be interpreted as a tensor-scalar theory of finite-range gravitation. The scalar field cannot be transformed away be a gauge transformation (general co-ordinate transformation) and so must be interpreted as a physically significant degree of freedom. The hypothesis that a massive spin-two meson (mass m2) satisfied equations identical in form to the equations of general relativity leads to the prediction of a massive spin-zero meson (mass m0), the ratio of masses being m0 / m2 = √3.

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