New soft theorems for the gravity dilaton and the Nambu-Goldstone dilaton at subsubleading order

TY - JOUR

T1 - New soft theorems for the gravity dilaton and the Nambu-Goldstone dilaton at subsubleading order

AU - di Vecchia, Paolo

AU - Marotta, Raffaele

AU - Mojaza, Matin

AU - Nohle, Josh

PY - 2016/4/12

Y1 - 2016/4/12

N2 - We study the soft behavior of two seemingly different particles that are both referred to as dilatons in the literature, namely the one that appears in theories of gravity and in string theory and the Nambu-Goldstone boson of spontaneously broken conformal invariance. Our primary result is the discovery of a soft theorem at subsubleading order for each dilaton, which in both cases contains the operator of special conformal transformations. Interesting similarities as well as differences between the dilaton soft theorems are discussed.

AB - We study the soft behavior of two seemingly different particles that are both referred to as dilatons in the literature, namely the one that appears in theories of gravity and in string theory and the Nambu-Goldstone boson of spontaneously broken conformal invariance. Our primary result is the discovery of a soft theorem at subsubleading order for each dilaton, which in both cases contains the operator of special conformal transformations. Interesting similarities as well as differences between the dilaton soft theorems are discussed.

U2 - 10.1103/PhysRevD.93.085015

DO - 10.1103/PhysRevD.93.085015

M3 - Journal article

SN - 2470-0010

VL - 93

JO - Physical Review D

JF - Physical Review D

IS - 8

M1 - 085015

ER -