☆ 4.4 Article

Gravitational causality and the self-stress of photons

JOURNAL OF HIGH ENERGY PHYSICS (2022)

Related references

Note: Only part of the references are listed.

Article Physics, Particles & Fields

Scattering amplitudes for all masses and spins

Nima Arkani-Hamed et al.

Summary: This paper introduces a formalism for describing four-dimensional scattering amplitudes for particles of any mass and spin, extending the familiar spinor-helicity formalism for massless particles. By systematically characterising possible three-particle amplitudes compatible with Poincare symmetry and using unitarity to construct four-particle tree amplitudes, a basis is established for expanding all possible four-particle amplitudes. The analysis of four-particle scattering leads to various general results in quantum field theory, such as the set of consistent theories for massless particles and the understanding of why massive particles of high spin cannot be elementary.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Add to Collection

Article Physics, Multidisciplinary

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

Zvi Bern et al.

Summary: This study analyzes constraints on the leading contributions of higher-dimension operators to the four-graviton amplitude in four spacetime dimensions from perturbative unitarity and crossing. It focuses on the impact of the exchange by massive degrees of freedom on making the amplitudes infrared finite. The results suggest that the Wilson coefficients of weakly-coupled gravitational physical theories are more constrained than previously thought.

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL (2021)

Add to Collection

Article Physics, Particles & Fields

Sharp boundaries for the swampland

Simon Caron-Huot et al.

Summary: This article revisits the problem of bounding higher derivative couplings in consistent weakly coupled gravitational theories, using dispersive sum rules to limit the order one coefficients and overcoming the difficulties caused by the graviton pole. The approach justifies the expectation that higher derivative couplings are expected to be of order one in the units of the UV cutoff.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Add to Collection

Article Physics, Particles & Fields

The EFT-hedron

Nima Arkani-Hamed et al.

Summary: The study reexamines the constraints imposed by causality and unitarity on the low-energy effective field theory expansion of four-particle scattering amplitudes, revealing a hidden totally positive structure similar to the positive geometries associated with grassmannians and amplituhedra, termed the EFT-hedron. By investigating the boundary structure of the EFT-hedron systematically, it provides linear and non-linear inequalities that must be satisfied by the EFT expansion in any theory. The EFT-hedron geometry and constraints are illustrated with various examples, including new consistency conditions on the scattering amplitudes of photons and gravitons in the real world.

JOURNAL OF HIGH ENERGY PHYSICS (2021)

Add to Collection

Article Physics, Particles & Fields

Shocks, superconvergence, and a stringy equivalence principle

Murat Kologlu et al.

JOURNAL OF HIGH ENERGY PHYSICS (2020)

Add to Collection

Article Astronomy & Astrophysics

Causality in curved spacetimes: The speed of light and gravity

Claudia de Rham et al.

PHYSICAL REVIEW D (2020)

Add to Collection

Article Astronomy & Astrophysics

Eikonal phase matrix, deflection angle, and time delay in effective field theories of gravity

Manuel Accettulli Huber et al.

PHYSICAL REVIEW D (2020)

Add to Collection

Article Physics, Particles & Fields

A bound on massive higher spin particles

Nima Afkhami-Jeddi et al.

JOURNAL OF HIGH ENERGY PHYSICS (2019)

Add to Collection

Article Physics, Particles & Fields

A species or weak-gravity bound for large N gauge theories coupled to gravity

Jared Kaplan et al.

JOURNAL OF HIGH ENERGY PHYSICS (2019)

Add to Collection

Article Astronomy & Astrophysics

Infrared features of gravitational scattering and radiation in the eikonal approach

Marcello Ciafaloni et al.

PHYSICAL REVIEW D (2019)

Add to Collection

Article Physics, Particles & Fields

Massive spin-2 scattering and asymptotic superluminality

Kurt Hinterbichler et al.

JOURNAL OF HIGH ENERGY PHYSICS (2018)

Add to Collection

Article Physics, Particles & Fields

Massive and massless spin-2 scattering and asymptotic superluminality

James Bonifacio et al.

JOURNAL OF HIGH ENERGY PHYSICS (2018)

Add to Collection

Article Physics, Particles & Fields

Superluminality, black holes and EFT

Garrett Goon et al.

JOURNAL OF HIGH ENERGY PHYSICS (2017)

Add to Collection

Article Physics, Multidisciplinary

Causality, renormalizability and ultra-high energy gravitational scattering

Timothy J. Hollowood et al.

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL (2016)

Add to Collection

Article Physics, Particles & Fields

Causality violation, gravitational shockwaves and UV completion

Timothy J. Hollowood et al.

JOURNAL OF HIGH ENERGY PHYSICS (2016)

Add to Collection

Article Physics, Particles & Fields

Renormalization group coefficients and the S-matrix

Simon Caron-Huot et al.

JOURNAL OF HIGH ENERGY PHYSICS (2016)

Add to Collection

Article Physics, Particles & Fields

Causality constraints on corrections to the graviton three-point coupling

Xian O. Camanho et al.

JOURNAL OF HIGH ENERGY PHYSICS (2016)

Add to Collection

Article Astronomy & Astrophysics

Higgs boson decay to two photons and dispersion relations

Kirill Melnikov et al.

PHYSICAL REVIEW D (2016)

Add to Collection

Article Physics, Particles & Fields

Regge behavior saves string theory from causality violations

Giuseppe D'Appollonio et al.

JOURNAL OF HIGH ENERGY PHYSICS (2015)

Add to Collection

Article Physics, Particles & Fields

Rescattering corrections and self-consistent metric in planckian scattering

M. Ciafaloni et al.

JOURNAL OF HIGH ENERGY PHYSICS (2014)

Add to Collection

Article Physics, Particles & Fields

Infrared consistency and the weak gravity conjecture

Clifford Cheung et al.

JOURNAL OF HIGH ENERGY PHYSICS (2014)

Add to Collection

Article Astronomy & Astrophysics

Gravity and the neutral currents: Effective interactions from the trace anomaly

Claudio Coriano et al.

PHYSICAL REVIEW D (2011)

Add to Collection

Article Astronomy & Astrophysics

Trace anomaly, massless scalars, and the gravitational coupling of QCD

Roberta Armillis et al.

PHYSICAL REVIEW D (2010)

Add to Collection

Article Physics, Particles & Fields

Anomalous Sudakov form factors

Marcello Ciafaloni et al.

JOURNAL OF HIGH ENERGY PHYSICS (2010)

Add to Collection

Article Astronomy & Astrophysics

Trace anomaly and massless scalar degrees of freedom in gravity

Maurizio Giannotti et al.

PHYSICAL REVIEW D (2009)

Add to Collection

Article Physics, Particles & Fields

The string landscape, black holes and gravity as the weakest force

Nima Arkani-Hamed et al.

JOURNAL OF HIGH ENERGY PHYSICS (2007)

Add to Collection

Article Physics, Particles & Fields

Causality, analyticity and an IR obstruction to UV completion

Allan Adams et al.

JOURNAL OF HIGH ENERGY PHYSICS (2006)

Add to Collection

Article Astronomy & Astrophysics

Theorems on gravitational time delay and related issues

S Gao et al.

CLASSICAL AND QUANTUM GRAVITY (2000)

Add to Collection

Article Astronomy & Astrophysics

Resummation of double logarithms in electroweak high energy processes

VS Fadin et al.

PHYSICAL REVIEW D (2000)

Add to Collection

© Peeref 2019-2024. All rights reserved.