Outputs (2904)

IRC-Safe Graph Autoencoder for Unsupervised Anomaly Detection (2022)
Journal Article
Atkinson, O., Bhardwaj, A., Englert, C., Konar, P., Ngairangbam, V. S., & Spannowsky, M. (2022). IRC-Safe Graph Autoencoder for Unsupervised Anomaly Detection. Frontiers in Artificial Intelligence, 5, Article 943135. https://doi.org/10.3389/frai.2022.943135

Anomaly detection through employing machine learning techniques has emerged as a novel powerful tool in the search for new physics beyond the Standard Model. Historically similar to the development of jet observables, theoretical consistency has not... Read More about IRC-Safe Graph Autoencoder for Unsupervised Anomaly Detection.

Integrable supersymmetric deformations of AdS3 × S3 × T4 (2022)
Journal Article
Hoare, B., Seibold, F. K., & Tseytlin, A. A. (2022). Integrable supersymmetric deformations of AdS3 × S3 × T4. Journal of High Energy Physics, 2022(9), Article 18. https://doi.org/10.1007/jhep09%282022%29018

We construct a family of type IIB string backgrounds that are deformations of AdS3 × S 3 × T 4 with a “squashed” AdS3 × S 3 metric supported by a combination of NSNS and RR fluxes. They have global SU(1, 1) × SU(2) symmetry, regular curvature, consta... Read More about Integrable supersymmetric deformations of AdS3 × S3 × T4.

Higgs/amplitude mode dynamics from holography (2022)
Journal Article
Donos, A., & Pantelidou, C. (2022). Higgs/amplitude mode dynamics from holography. Journal of High Energy Physics, 2022(8), Article 246. https://doi.org/10.1007/jhep08%282022%29246

Second order phase transitions are universally driven by an order parameter which becomes trivial at the critical point. At the same time, collective excitations which involve the amplitude of the order parameter develop a gap which smoothly closes t... Read More about Higgs/amplitude mode dynamics from holography.

Single photon production at hadron colliders at NNLO QCD with realistic photon isolation (2022)
Journal Article
Chen, X., Gehrmann, T., Glover, E., Höfer, M., Huss, A., & Schürmann, R. (2022). Single photon production at hadron colliders at NNLO QCD with realistic photon isolation. Journal of High Energy Physics, 2022(8), Article 94. https://doi.org/10.1007/jhep08%282022%29094

Isolated photons at hadron colliders are defined by permitting only a limited amount of hadronic energy inside a fixed-size cone around the candidate photon direction. This isolation criterion admits contributions from collinear photon radiation off... Read More about Single photon production at hadron colliders at NNLO QCD with realistic photon isolation.

Notes on the dynamics of noncommutative U(2) and commutative SU(3) instantons (2022)
Journal Article
Smith, D. J., Robson, C. J., & Farrow, J. A. (2022). Notes on the dynamics of noncommutative U(2) and commutative SU(3) instantons. Physical Review D, 106(4), Article 045001. https://doi.org/10.1103/physrevd.106.045001

We examine the dynamics of noncommutative instantons of instanton number 2 and commutative instantons of instanton number 3 in 5D super Yang-Mills theory. We begin by detailing the construction of the 1=4-Bogamolyni-Prasad-Somerfeldt instanton soluti... Read More about Notes on the dynamics of noncommutative U(2) and commutative SU(3) instantons.

Going beyond ER=EPR in the SYK model (2022)
Journal Article
Berkooz, M., Brukner, N., Ross, S. F., & Watanabe, M. (2022). Going beyond ER=EPR in the SYK model. Journal of High Energy Physics, 2022(8), Article 51. https://doi.org/10.1007/jhep08%282022%29051

We discuss generalizations of the TFD to a density matrix on the doubled Hilbert space. We suggest that a semiclassical wormhole corresponds to a certain class of such density matrices, and specify how they are constructed. Different semi-classical p... Read More about Going beyond ER=EPR in the SYK model.

3d N = 4 Gauge Theories on an Elliptic Curve (2022)
Journal Article
Bullimore, M., & Zhang, D. (2022). 3d N = 4 Gauge Theories on an Elliptic Curve. SciPost Physics, 13(1), Article 005. https://doi.org/10.21468/scipostphys.13.1.005

This paper studies 3d N = 4 supersymmetric gauge theories on an elliptic curve, with the aim to provide a physical realisation of recent constructions in equivariant elliptic cohomology of symplectic resolutions. We first study the Berry connection f... Read More about 3d N = 4 Gauge Theories on an Elliptic Curve.

Vector boson pair production at one loop: analytic results for the process $$ \mathrm{q}\overline{\mathrm{q}}\ell \overline{\ell}{\ell}^{\prime }{\overline{\ell}}^{\prime}\mathrm{g} $$ (2022)
Journal Article
Campbell, J. M., De Laurentis, G., & Ellis, R. K. (2022). Vector boson pair production at one loop: analytic results for the process $$ \mathrm{q}\overline{\mathrm{q}}\ell \overline{\ell}{\ell}^{\prime }{\overline{\ell}}^{\prime}\mathrm{g} $$. Journal of High Energy Physics, 2022(7), Article 96. https://doi.org/10.1007/jhep07%282022%29096

We present compact analytic results for the one-loop amplitude for the process 0 → qq¯¯ℓℓ¯ℓ′ℓ¯′g, relevant for both the production of a pair of Z and W-bosons in association with a jet. We focus on the gauge-invariant contribution mediated by a loop... Read More about Vector boson pair production at one loop: analytic results for the process $$ \mathrm{q}\overline{\mathrm{q}}\ell \overline{\ell}{\ell}^{\prime }{\overline{\ell}}^{\prime}\mathrm{g} $$.

Anomaly detection in high-energy physics using a quantum autoencoder (2022)
Journal Article
Ngairangbam, V. S., Spannowsky, M., & Takeuchi, M. (2022). Anomaly detection in high-energy physics using a quantum autoencoder. Physical Review D, 105(9), Article 095004. https://doi.org/10.1103/physrevd.105.095004

The lack of evidence for new interactions and particles at the Large Hadron Collider (LHC) has motivated the high-energy physics community to explore model-agnostic data-analysis approaches to search for new physics. Autoencoders are unsupervised mac... Read More about Anomaly detection in high-energy physics using a quantum autoencoder.

Unbiased elimination of negative weights in Monte Carlo samples (2022)
Journal Article
Andersen, J. R., & Maier, A. (2022). Unbiased elimination of negative weights in Monte Carlo samples. The European Physical Journal C, 82(5), Article 433. https://doi.org/10.1140/epjc/s10052-022-10372-3

We propose a novel method for the elimination of negative Monte Carlo event weights. The method is process-agnostic, independent of any analysis, and preserves all physical observables. We demonstrate the overall performance and systematic improvemen... Read More about Unbiased elimination of negative weights in Monte Carlo samples.

HEJ 2.1: High-energy resummation with vector bosons and next-to-leading logarithms (2022)
Journal Article
Andersen, J. R., Black, J., Brooks, H., Ducloué, B., Heil, M., Maier, A., & Smillie, J. M. (2022). HEJ 2.1: High-energy resummation with vector bosons and next-to-leading logarithms. Computer Physics Communications, 278, Article 108404. https://doi.org/10.1016/j.cpc.2022.108404

We present version 2.1 of the High Energy Jets (HEJ) event generator for hadron colliders. HEJ is a Monte Carlo generator for processes at high energies with multiple well-separated jets in the final state. To achieve accurate predictions, convention... Read More about HEJ 2.1: High-energy resummation with vector bosons and next-to-leading logarithms.

Effective field theories and cosmological scattering equations (2022)
Journal Article
Armstrong, C., Gomez, H., Jusinskas, R. L., Lipstein, A., & Mei, J. (2022). Effective field theories and cosmological scattering equations. Journal of High Energy Physics, 2022(8), Article 54. https://doi.org/10.1007/jhep08%282022%29054

We propose worldsheet formulae for correlators of the massive non-linear sigma model (NLSM), scalar Dirac-Born-Infeld (DBI), and special Galileon (sGal) theories in de Sitter momentum space in terms of the recently proposed cosmological scattering eq... Read More about Effective field theories and cosmological scattering equations.

Secluded dark matter in gauged B − L model (2022)
Journal Article
Bandyopadhyay, P., Mitra, M., Padhan, R., Roy, A., & Spannowsky, M. (2022). Secluded dark matter in gauged B − L model. Journal of High Energy Physics, 2022(5), Article 182. https://doi.org/10.1007/jhep05%282022%29182

We consider the gauged B − L model which is extended with a secluded dark sector, comprising of two dark sector particles. In this framework the lightest Z2-odd particle is the dark matter candidate, having a feeble interaction with all other SM and... Read More about Secluded dark matter in gauged B − L model.

Epidemiological modelling in refugee and internally displaced people settlements: challenges and ways forward (2022)
Journal Article
Aylett-Bullock, J., Gilman, R. T., Hall, I., Kennedy, D., Evers, E. S., Katta, A., …Luengo-Oroz, M. (2022). Epidemiological modelling in refugee and internally displaced people settlements: challenges and ways forward. BMJ Global Health, 7(3), Article e007822. https://doi.org/10.1136/bmjgh-2021-007822

The spread of infectious diseases such as COVID-19 presents many challenges to healthcare systems and infrastructures across the world, exacerbating inequalities and leaving the world’s most vulnerable populations at risk. Epidemiological modelling i... Read More about Epidemiological modelling in refugee and internally displaced people settlements: challenges and ways forward.

Multiparticle amplitudes in a scalar EFT (2022)
Journal Article
Khoze, V. V., & Schenk, S. (2022). Multiparticle amplitudes in a scalar EFT. Journal of High Energy Physics, 2022(5), Article 134. https://doi.org/10.1007/jhep05%282022%29134

At sufficiently high energies the production of a very large number of particles is kinematically allowed. However, it is well-known that already in the simplest case of a weakly-coupled massive λφ4 theory, n-particle amplitudes become non-perturbati... Read More about Multiparticle amplitudes in a scalar EFT.

On acceleration in three dimensions (2022)
Journal Article
Arenas-Henriquez, G., Gregory, R., & Scoins, A. (2022). On acceleration in three dimensions. Journal of High Energy Physics, 2022(5), Article 63. https://doi.org/10.1007/jhep05%282022%29063

We go “back to basics”, studying accelerating systems in 2 + 1 AdS gravity ab initio. We find three classes of geometry, which we interpret by studying holographically their physical parameters. From these, we construct stationary, accelerating point... Read More about On acceleration in three dimensions.

Self-dual U(1) lattice field theory with a θ-term (2022)
Journal Article
Anosova, M., Gattringer, C., & Sulejmanpasic, T. (2022). Self-dual U(1) lattice field theory with a θ-term. Journal of High Energy Physics, 2022(4), Article 120. https://doi.org/10.1007/jhep04%282022%29120

We study U(1) gauge theories with a modified Villain action. Such theories can naturally be coupled to electric and magnetic matter, and display exact electric-magnetic duality. In their simplest formulation without a θ-term, such theories are ultra-... Read More about Self-dual U(1) lattice field theory with a θ-term.

Unsupervised Quark/Gluon Jet Tagging With Poissonian Mixture Models (2022)
Journal Article
Alvarez, E., Spannowsky, M., & Szewc, M. (2022). Unsupervised Quark/Gluon Jet Tagging With Poissonian Mixture Models. Frontiers in Artificial Intelligence, 5, Article 852970. https://doi.org/10.3389/frai.2022.852970

The classification of jets induced by quarks or gluons is important for New Physics searches at high-energy colliders. However, available taggers usually rely on modeling the data through Monte Carlo simulations, which could veil intractable theoreti... Read More about Unsupervised Quark/Gluon Jet Tagging With Poissonian Mixture Models.

Cosmological scattering equations at tree-level and one-loop (2022)
Journal Article
Gomez, H., Jusinskas, R. L., & Lipstein, A. (2022). Cosmological scattering equations at tree-level and one-loop. Journal of High Energy Physics, 2022(7), Article 4. https://doi.org/10.1007/jhep07%282022%29004

We recently proposed a formula for tree-level n-point correlators of massive phi^4 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 co... Read More about Cosmological scattering equations at tree-level and one-loop.

On matched asymptotic expansions of backreacting metastable anti-branes (2022)
Journal Article
Nguyen, N., & Niarchos, V. (2022). On matched asymptotic expansions of backreacting metastable anti-branes. Journal of High Energy Physics, 2022(6), Article 55. https://doi.org/10.1007/jhep06%282022%29055

We construct analytically a perturbative supergravity solution that captures the backreaction of a metastable state of anti-branes in the background of a particular modification of the Klebanov-Strassler throat in a long-wavelength approximation. Our... Read More about On matched asymptotic expansions of backreacting metastable anti-branes.