Cosmological scattering equations at tree-level and one-loop
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00562140" target="_blank" >RIV/68378271:_____/22:00562140 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0334556" target="_blank" >https://hdl.handle.net/11104/0334556</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP07(2022)004" target="_blank" >10.1007/JHEP07(2022)004</a>
Alternative languages
Result language
angličtina
Original language name
Cosmological scattering equations at tree-level and one-loop
Original language description
We recently proposed a formula for tree-level n-point correlators of massive quartic theory in de Sitter momentum space which consists of an integral over n punctures on the Riemann sphere and differential operators in the future boundary dubbed the cosmological scattering equations. In this work we provide further details of these calculations and present an alternative formulation based on a double cover of the Riemann sphere. This framework can be used to derive simple graphical rules for evaluating the integrals more efficiently. We check its validity up to eight points and sketch the derivation of n-point correlators. Finally, we propose a similar formula for 1-loop n-point correlators in terms of an integral over (n + 2) punctures on the Riemann sphere. The 1-loop formula holds for small masses in de Sitter space and arbitrary masses satisfying the Breitenlohner-Freedman bound after Wick-rotating to Anti-de Sitter space.n
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics
Result continuities
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
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2022
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
45
Pages from-to
004
UT code for WoS article
000820254400007
EID of the result in the Scopus database
2-s2.0-85133356981