Title: Gravitational effective field theory islands, low-spin dominance, and the four-graviton amplitude

Journal Article · · Journal of Physics. A, Mathematical and Theoretical

Abstract We analyze constraints from perturbative unitarity and crossing on the leading contributions of higher-dimension operators to the four-graviton amplitude in four spacetime dimensions, including constraints that follow from distinct helicity configurations. We focus on the leading-order effect due to exchange by massive degrees of freedom which makes the amplitudes of interest infrared finite. In particular, we place a bound on the coefficient of the R 3 operator that corrects the graviton three-point amplitude in terms of the R 4 coefficient. To test the constraints we obtain nontrivial effective field-theory data by computing and taking the large-mass expansion of the one-loop minimally-coupled four-graviton amplitude with massive particles up to spin 2 circulating in the loop. Remarkably, we observe that the leading EFT coefficients obtained from both string and one-loop field-theory amplitudes lie in small islands. The shape and location of the islands can be derived from the dispersive representation for the Wilson coefficients using crossing and assuming that the lowest-spin spectral densities are the largest. Our analysis suggests that the Wilson coefficients of weakly-coupled gravitational physical theories are much more constrained than indicated by bounds arising from dispersive considerations of 2 → 2 scattering. The one-loop four-graviton amplitudes used to obtain the EFT data are computed using modern amplitude methods, including generalized unitarity, supersymmetric decompositions and the double copy.

Research Organization:
Univ. of California, Los Angeles, CA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC) High Energy Physics (HEP)
Grant/Contract Number:
SC0009937
OSTI ID:
1835491
Journal Information:
Journal of Physics. A, Mathematical and Theoretical, Journal Name: Journal of Physics. A, Mathematical and Theoretical Journal Issue: 34 Vol. 54; ISSN 1751-8113
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (125)

The Swampland: Introduction and Review journal April 2019
New algorithms for one-loop integrals journal September 1990
Extension of the axiomatic analyticity domain of scattering amplitudes by unitarity-I journal April 1966
Analytic properties of npoint loops in perturbation theory journal October 1961
Reduction of feynman diagrams journal November 1965
Scattering into the fifth dimension of $$ \mathcal{N} $$ = 4 super Yang-Mills journal January 2010
External leg corrections in the unitarity method journal January 2012
SCET approach to regularization-scheme dependence of QCD amplitudes journal January 2016
On higher-derivative effects on the gravitational potential and particle bending journal January 2020
Elastic positivity vs extremal positivity bounds in SMEFT: a case study in transversal electroweak gauge-boson scatterings journal January 2021
Causality constraints on corrections to the graviton three-point coupling journal February 2016
Softness and amplitudes’ positivity for spinning particles journal February 2017
Classifying and constraining local four photon and four graviton S-matrices journal February 2020
UV complete me: positivity bounds for particles with spin journal March 2018
Higgs-regularized three-loop four-gluon amplitude in $ \mathcal{N} = 4 $ SYM: exponentiation and Regge limits journal April 2010
Theoretical constraints on the Higgs effective couplings journal April 2010
A bound on massive higher spin particles journal April 2019
Dispersion relation for CFT four-point functions journal April 2020
No triangles on the moduli space of maximally supersymmetric gauge theory journal May 2010
Energy’s and amplitudes’ positivity journal May 2010
Eikonal methods applied to gravitational scattering amplitudes journal May 2011
Integrands for QCD rational terms and $ \mathcal{N} = {4} $ SYM from massive CSW rules journal June 2012
Massive and massless spin-2 scattering and asymptotic superluminality journal June 2018
Beyond a = c : gravitational couplings to matter and the stress tensor OPE journal July 2018
More loops and legs in Higgs-regulated $$ \mathcal{N} = 4 $$ SYM amplitudes journal August 2010
A bound on chaos journal August 2016
Einstein gravity from ANEC correlators journal August 2019
Constructing $$ \mathcal{N} $$ = 4 Coulomb branch superamplitudes journal August 2019
Nonperturbative Mellin amplitudes: existence, properties, applications journal August 2020
An effective formalism for testing extensions to General Relativity with gravitational waves journal September 2017
A conformal dispersion relation: correlations from absorption journal September 2020
Color-kinematics duality and double-copy construction for amplitudes from higher-dimension operators journal October 2012
Strings from massive higher spins: the asymptotic uniqueness of the Veneziano amplitude journal October 2017
A conformal collider for holographic CFTs journal October 2018
Massive on-shell supersymmetric scattering amplitudes journal October 2019
Erratum: energy’s and amplitudes’ positivity journal November 2011
Massive amplitudes on the Coulomb branch of $$ \mathcal{N} = 4 $$ SYM journal December 2011
Infrared consistency and the weak gravity conjecture journal December 2014
Algebraic reduction of one-loop Feynman diagrams to scalar integrals journal March 1988
Multi-parton amplitudes in gauge theories journal February 1991
Single bremsstrahlung processes in gauge theories journal July 1981
Large loop integrals journal March 1984
Improved analytic techniques for tree graph calculations and the subprocess journal October 1985
Perturbative QCD utilizing extended supersymmetry journal July 1985
Dimensionally regulated one-loop integrals journal March 1993
Dimensionally regulated one-loop integrals (Phys. Lett. B 302 (1993) 299) journal December 1993
String-based methods in perturbative gravity journal August 1993
Massive fields coupled to gravity. Tree-level unitarity versus the equivalence principle journal April 1993
Second order fermions in gauge theories journal May 1995
Regularization and renormalization of gauge fields journal July 1972
Some properties of scattering amplitudes in supersymmetric theories journal June 1977
Spontaneous generation of massive multiplets and central charges in extended supersymmetric theories journal March 1979
One-loop corrections for e+e− annihilation into μ+μ− in the Weinberg model journal November 1979
Scalar one-loop integrals journal January 1979
Integration by parts: The algorithm to calculate β-functions in 4 loops journal November 1981
Multiple bremsstrahlung in gauge theories at high energies (I). General formalism for quantum electrodynamics journal October 1982
Spinor techniques for calculating journal December 1985
A relation between tree amplitudes of closed and open strings journal May 1986
Helicity amplitudes for multiple bremsstrahlung in massless non-abelian gauge theories journal January 1987
A compact expression for the scalar one-loop four-point function journal December 1991
The computation of loop amplitudes in gauge theories journal July 1992
Calculation of graviton scattering amplitudes using string-based methods journal January 1995
Fusing gauge theory tree amplitudes into loop amplitudes journal February 1995
One-loop corrections to two-quark three-gluon amplitudes journal March 1995
One-loop n-point gauge theory amplitudes, unitarity and collinear limits journal August 1994
Dimensionally-regulated pentagon integrals journal January 1994
Factorization in one-loop gauge theory journal August 1995
Massive loop amplitudes from unitarity journal May 1996
On the geometry of the string landscape and the swampland journal March 2007
Consistent non-minimal couplings of massive higher-spin particles journal February 2014
Higher derivative theories for interacting massless gravitons in Minkowski spacetime journal July 2018
Loop amplitudes in an extended gravity theory journal May 2018
First massive state of the superstring in superspace journal December 1997
The hierarchy problem and new dimensions at a millimeter journal June 1998
Superspace action for the first massive states of the superstring journal May 1999
Inconsistencies of massive charged gravitating higher spins journal June 2002
One-loop amplitudes for e+e− to four partons journal March 1998
On the relationship between Yang-Mills theory and gravity and its implication for ultraviolet divergences journal October 1998
Reduction of a One‐Loop Feynman Diagram with n Vertices in m ‐Dimensional Lorentz Space journal December 1965
On integral relations for invariants constructed from three Riemann tensors and their applications in quantum gravity journal January 1977
A note on causality constraining higher curvature corrections to gravity journal June 2007
Normal forms for tensor polynomials. I. The Riemann tensor journal May 1992
Two-Loop Helicity Amplitudes for Gluon-Gluon Scattering in QCD and Supersymmetric Yang-Mills Theory journal March 2002
Massive Supergravity and Deconstruction journal July 2004
Two-Loop g   gg Splitting Amplitudes in QCD journal August 2004
Causality, analyticity and an IR obstruction to UV completion journal October 2006
The string landscape, black holes and gravity as the weakest force journal June 2007
Causal vs. analytic constraints on anomalous quartic gauge couplings journal November 2007
The Pomeron and gauge/string duality journal December 2007
Algorithm FIRE—Feynman Integral REduction journal October 2008
Basics of generalized unitarity journal October 2011
Dual conformal symmetry at loop level: massive regularization journal October 2011
Convex Geometry Perspective on the (Standard Model) Effective Field Theory Space journal November 2020
Photons and Gravitons in S -Matrix Theory: Derivation of Charge Conservation and Equality of Gravitational and Inertial Mass journal August 1964
Photons and Gravitons in Perturbation Theory: Derivation of Maxwell's and Einstein's Equations journal May 1965
Infrared Photons and Gravitons journal October 1965
Superluminal Behavior, Causality, and Instability journal June 1969
Radiative Corrections to Compton Scattering journal January 1952
Gravitational-wave constraints on an effective-field-theory extension of general relativity journal August 2020
Causality in curved spacetimes: The speed of light and gravity journal October 2020
Supergravity and the S matrix journal February 1977
Supersymmetry relations between contributions to one-loop gauge boson amplitudes journal June 1994
Tree-level unitarity constraints on the gravitational couplings of higher-spin massive fields journal April 1995
Massive higher spin states in string theory and gravitational quadrupoles journal April 1999
Supersymmetric regularization, two-loop QCD amplitudes, and coupling shifts journal October 2002
Direct extraction of one-loop integral coefficients journal June 2007
Automated implementation of on-shell methods for one-loop amplitudes journal August 2008
New relations for gauge-theory amplitudes journal October 2008
Complete four-loop four-point amplitude in N = 4 super-Yang-Mills theory journal December 2010
Collinear and soft divergences in perturbative quantum gravity journal November 2011
Lagrangian formulation for arbitrary spin. I. The boson case journal February 1974
Signs of analyticity in single-field inflation journal January 2016
Quantum gravity constraints from unitarity and analyticity journal March 2016
Positivity bounds for scalar field theories journal October 2017
Ultraviolet properties of N = 8 supergravity at five loops journal October 2018
Perturbative Quantum Gravity as a Double Copy of Gauge Theory journal August 2010
Five-Loop Four-Point Amplitude of N = 4 Super-Yang-Mills Theory journal December 2012
Positivity of Curvature-Squared Corrections in Gravity journal February 2017
Two-Loop Four-Graviton Scattering Amplitudes journal May 2020
One-loop corrections to five-gluon amplitudes journal May 1993
Large Mass Hierarchy from a Small Extra Dimension journal October 1999
An Alternative to Compactification journal December 1999
Falsifying Models of New Physics via W W Scattering journal January 2007
High-Precision Calculation of Multiloop Feynman Integrals by Difference Equations journal December 2000
Progress in One-Loop qcd Computations journal December 1996

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