Effective field theories and cosmological scattering equations

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00562174" target="_blank" >RIV/68378271:_____/22:00562174 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0334588" target="_blank" >https://hdl.handle.net/11104/0334588</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP08(2022)054" target="_blank" >10.1007/JHEP08(2022)054</a>

Result language
angličtina
Original language name
Effective field theories and cosmological scattering equations
Original language description
We propose worldsheet formulae for wavefunction coefficients of the massive non-linear sigma model (NLSM), scalar Dirac-Born-Infeld (DBI), and special Galileon (sGal) theories in de Sitter momentum space in terms of the recently proposed cosmological scattering equations constructed from conformal generators in the future boundary. The four-point integrands are assembled from simple building blocks and we identify a double copy prescription mapping the NLSM wavefunction coefficient to the DBI and sGal wavefunction coefficients, including mass deformations and curvature corrections. Finally, we compute the soft limits of these wavefunction coefficients and find that they can be written in terms of boundary conformal generators acting on contact diagrams.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Project
<a href="/en/project/GJ19-06342Y" target="_blank" >GJ19-06342Y: Fundamental aspects of superstrings</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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