On the low-energy limit of one-loop photon–graviton amplitudes

We present first results of a systematic study of the structure of the low-energy limit of the one-loop photon–graviton amplitudes induced by massive scalars and spinors. Our main objective is the search of KLT-type relations where effectively two photons merge into a graviton. We find such a relati...

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Bibliographic Details
Published inPhysics letters. B Vol. 716; no. 2; pp. 345 - 349
Main Authors Bastianelli, F., Corradini, O., Dávila, J.M., Schubert, C.
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier B.V 19.09.2012
Elsevier
Subjects
Amplitudes
Elementary particles
Exact sciences and technology
Gravitons
Nuclear physics
Photons
Physics
Scalars
Searching
The physics of elementary particles and fields
Diffeomorphism
Spinors
Ward identity
Gravitons
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Summary:We present first results of a systematic study of the structure of the low-energy limit of the one-loop photon–graviton amplitudes induced by massive scalars and spinors. Our main objective is the search of KLT-type relations where effectively two photons merge into a graviton. We find such a relation at the graviton–photon–photon level. We also derive the diffeomorphism Ward identity for the 1PI one-graviton–N-photon amplitudes.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2012.08.030