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Manifest colour-kin...
Manifest colour-kinematics duality and double-copy in the string-based formalism
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- Ahmadiniaz, Naser (författare)
- Helmholtz Zentrum Dresden Rossendorf, Bautzner Landstr 400, D-01328 Dresden, Germany.
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- Balli, Filippo Maria (författare)
- Uppsala universitet,Institutionen för fysik och astronomi,Univ Modena & Reggio Emilia, Dipartimento Sci Fis Informat & Matemat, Via Campi 213-A, I-41125 Modena, Italy.;INFN, Sez Bologna, Via Irnerio 46, I-40126 Bologna, Italy.
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- Corradini, Olindo (författare)
- Univ Modena & Reggio Emilia, Dipartimento Sci Fis Informat & Matemat, Via Campi 213-A, I-41125 Modena, Italy.;INFN, Sez Bologna, Via Irnerio 46, I-40126 Bologna, Italy.
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- Lopez-Arcos, Cristhiam (författare)
- Univ Nacl Colombia Sede Medellin, Escuela Matemat, Carrera 65 59A-110, Medellin, Colombia.
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- Velez, Alexander Quintero (författare)
- Univ Nacl Colombia Sede Medellin, Escuela Matemat, Carrera 65 59A-110, Medellin, Colombia.
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- Schubert, Christian (författare)
- Univ Michoacana, Inst Fis Matemat, Edificio C-3,Apdo Postal 2-82, Morelia 58040, Michoacan, Mexico.
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Helmholtz Zentrum Dresden Rossendorf, Bautzner Landstr 400, D-01328 Dresden, Germany Institutionen för fysik och astronomi (creator_code:org_t)
- Elsevier, 2022
- 2022
- Engelska.
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Ingår i: Nuclear Physics B. - : Elsevier. - 0550-3213 .- 1873-1562. ; 975
- Relaterad länk:
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The relation for the gravity polarisation tensor as the tensor product of two gluon polarisation vectors has been well-known for a long time, but a version of this relation for multi-particle fields is presently still not known. Here we show that in order for this to happen we first have to ensure that the multi-particle polarisations satisfy colour-kinematics duality. In previous work it has been show that this arises naturally from the Bern-Kosower formalism for one-loop gluon amplitudes, and here we show that the tensor product for multi-particle fields arises naturallyin the Bern-Dunbar-Shimada formalism for one-loop gravity amplitudes. This allows us to formulate a new prescription for double-copy gravity Berends-Giele currents, and to obtain both the colour-dressed Yang-Mills Berends-Giele currents in the Bern-Carrasco-Johansson gauge and the gravitational Berends-Giele currents explicitly. An attractive feature of our formalism is that it never becomes necessary to determine gauge transformation terms. Our double-copy prescription can also be applied to other cases, and to make this point we derive the double-copy perturbiners for alpha'-deformed gravity and the bi-adjoint scalar model. (C) 2022 The Author(s). Published by Elsevier B.V.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
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