Gravity Amplitudes from Double Bonus Relations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10475020" target="_blank" >RIV/00216208:11320/23:10475020 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=koho9agX8n" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=koho9agX8n</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.131.251601" target="_blank" >10.1103/PhysRevLett.131.251601</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Gravity Amplitudes from Double Bonus Relations

Popis výsledku v původním jazyce

In this Letter, we derive new expressions for tree-level graviton amplitudes in N 1/4 8 supergravity fromBritto-Cachazo-Feng-Witten (BCFW) recursion relations combined with new types of bonus relations.These bonus relations go beyond the famous 1=z2 behavior under a large BCFW shift and use knowledgeabout certain zeros of graviton amplitudes in collinear kinematics. This extra knowledge can be used in thecontext of global residue theorems by writing the amplitude in a special form using canonical buildingblocks. In the next-to-maximally-helicity-violating case, these building blocks are dressed one-loop leadingsingularities, the same objects that appear in the expansion of Yang-Mills amplitudes, where each termcorresponds to an R invariant. Unlike other approaches, our formula is not an expansion in terms of cyclicobjects and does not manifest color-kinematics duality but rather preserves the permutational symmetry ofits building blocks.We also comment on the possible connection to Grassmannian geometry and give somenontrivial evidence of such structure for graviton amplitudes.

Název v anglickém jazyce

Gravity Amplitudes from Double Bonus Relations

Popis výsledku anglicky

In this Letter, we derive new expressions for tree-level graviton amplitudes in N 1/4 8 supergravity fromBritto-Cachazo-Feng-Witten (BCFW) recursion relations combined with new types of bonus relations.These bonus relations go beyond the famous 1=z2 behavior under a large BCFW shift and use knowledgeabout certain zeros of graviton amplitudes in collinear kinematics. This extra knowledge can be used in thecontext of global residue theorems by writing the amplitude in a special form using canonical buildingblocks. In the next-to-maximally-helicity-violating case, these building blocks are dressed one-loop leadingsingularities, the same objects that appear in the expansion of Yang-Mills amplitudes, where each termcorresponds to an R invariant. Unlike other approaches, our formula is not an expansion in terms of cyclicobjects and does not manifest color-kinematics duality but rather preserves the permutational symmetry ofits building blocks.We also comment on the possible connection to Grassmannian geometry and give somenontrivial evidence of such structure for graviton amplitudes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

<a href="/cs/project/GA21-26574S" target="_blank" >GA21-26574S: Efektivní teorie pole z pohledu on-shell amplitud</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

1079-7114

Svazek periodika

131

Číslo periodika v rámci svazku

25

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

251601

Kód UT WoS článku

001153468500002

EID výsledku v databázi Scopus

2-s2.0-85181002403