The Standard Model quiver in de Sitter string compactifications (2021)
Journal Article
Cicoli, M., García Etxebarria, I., Quevedo, F., Schachner, A., Shukla, P., & Valandro, R. (2021). The Standard Model quiver in de Sitter string compactifications. Journal of High Energy Physics, 2021(8), Article 109. https://doi.org/10.1007/jhep08%282021%29109

We argue that the Standard Model quiver can be embedded into compact Calabi-Yau geometries through orientifolded D3-branes at del Pezzo singularities dPn with n ≥ 5 in a framework including moduli stabilisation. To illustrate our approach, we explici... Read More about The Standard Model quiver in de Sitter string compactifications.

An investigation of the $$\alpha _S$$ and heavy quark mass dependence in the MSHT20 global PDF analysis (2021)
Journal Article
Cridge, T., Harland-Lang, L., Martin, A., & Thorne, R. (2021). An investigation of the $$\alpha _S$$ and heavy quark mass dependence in the MSHT20 global PDF analysis. The European Physical Journal C, 81(8), Article 744. https://doi.org/10.1140/epjc/s10052-021-09533-7

We investigate the MSHT20 global PDF sets, demonstrating the effects of varying the strong coupling αS(M2Z) and the masses of the charm and bottom quarks. We determine the preferred value, and accompanying uncertainties, when we allow αS(M2Z) to be a... Read More about An investigation of the $$\alpha _S$$ and heavy quark mass dependence in the MSHT20 global PDF analysis.

Anomaly detection with convolutional Graph Neural Networks (2021)
Journal Article
Atkinson, O., Bhardwaj, A., Englert, C., Ngairangbam, V. S., & Spannowsky, M. (2021). Anomaly detection with convolutional Graph Neural Networks. Journal of High Energy Physics, 2021(8), https://doi.org/10.1007/jhep08%282021%29080

We devise an autoencoder based strategy to facilitate anomaly detection for boosted jets, employing Graph Neural Networks (GNNs) to do so. To overcome known limitations of GNN autoencoders, we design a symmetric decoder capable of simultaneously reco... Read More about Anomaly detection with convolutional Graph Neural Networks.

Optimising simulations for diphoton production at hadron colliders using amplitude neural networks (2021)
Journal Article
Aylett-Bullock, J., Badger, S., & Moodie, R. (2021). Optimising simulations for diphoton production at hadron colliders using amplitude neural networks. Journal of High Energy Physics, 2021(8), https://doi.org/10.1007/jhep08%282021%29066

Machine learning technology has the potential to dramatically optimise event generation and simulations. We continue to investigate the use of neural networks to approximate matrix elements for high-multiplicity scattering processes. We focus on the... Read More about Optimising simulations for diphoton production at hadron colliders using amplitude neural networks.

Fully Differential Higgs Boson Production to Third Order in QCD (2021)
Journal Article
Chen, X., Gehrmann, T., Glover, E., Huss, A., Mistlberger, B., & Pelloni, A. (2021). Fully Differential Higgs Boson Production to Third Order in QCD. Physical Review Letters, 127(7), Article 072002. https://doi.org/10.1103/physrevlett.127.072002

We present the first fully differential predictions for the production cross section of a Higgs boson via the gluon fusion mechanism at next-to-next-to-next-to-leading order ( N 3 LO ) in QCD perturbation theory. Differential distributions are shown... Read More about Fully Differential Higgs Boson Production to Third Order in QCD.

An optimal non-linear method for simulating relic neutrinos (2021)
Journal Article
Elbers, W., Frenk, C. S., Jenkins, A., Li, B., & Pascoli, S. (2021). An optimal non-linear method for simulating relic neutrinos. Monthly Notices of the Royal Astronomical Society, 507(2), 2614-2631. https://doi.org/10.1093/mnras/stab2260

Cosmology places the strongest current limits on the sum of neutrino masses. Future observations will further improve the sensitivity and this will require accurate cosmological simulations to quantify possible systematic uncertainties and to make pr... Read More about An optimal non-linear method for simulating relic neutrinos.

Seiberg-like dualities for orthogonal and symplectic 3d $$ \mathcal{N} $$ = 2 gauge theories with boundaries (2021)
Journal Article
Okazaki, T., & Smith, D. J. (2021). Seiberg-like dualities for orthogonal and symplectic 3d $$ \mathcal{N} $$ = 2 gauge theories with boundaries. Journal of High Energy Physics, 2021(7), Article 231. https://doi.org/10.1007/jhep07%282021%29231

We propose dualities of N = (0, 2) supersymmetric boundary conditions for 3d N = 2 gauge theories with orthogonal and symplectic gauge groups. We show that the boundary ’t Hooft anomalies and half-indices perfectly match for each pair of the proposed... Read More about Seiberg-like dualities for orthogonal and symplectic 3d $$ \mathcal{N} $$ = 2 gauge theories with boundaries.

The pp → W(→ lν) + γ process at next-to-next-to-leading order (2021)
Journal Article
Campbell, J. M., De Laurentis, G., Ellis, R. K., & Seth, S. (2021). The pp → W(→ lν) + γ process at next-to-next-to-leading order. Journal of High Energy Physics, 2021(7), https://doi.org/10.1007/jhep07%282021%29079

We present details of the calculation of the pp → W(→ lν)γ process at next-to-next-to-leading order in QCD, calculated using the jettiness slicing method. The calculation is based entirely on analytic amplitudes. Because of the radiation zero, the NL... Read More about The pp → W(→ lν) + γ process at next-to-next-to-leading order.

Driven black holes: from Kolmogorov scaling to turbulent wakes (2021)
Journal Article
Andrade, T., Pantelidou, C., Sonner, J., & Withers, B. (2021). Driven black holes: from Kolmogorov scaling to turbulent wakes. Journal of High Energy Physics, 2021(7), https://doi.org/10.1007/jhep07%282021%29063

General relativity governs the nonlinear dynamics of spacetime, including black holes and their event horizons. We demonstrate that forced black hole horizons exhibit statistically steady turbulent spacetime dynamics consistent with Kolmogorov’s theo... Read More about Driven black holes: from Kolmogorov scaling to turbulent wakes.

Analytic results for scalar-mediated Higgs boson production in association with two jets (2021)
Journal Article
Budge, L., Campbell, J. M., Ellis, R. K., & Seth, S. (2021). Analytic results for scalar-mediated Higgs boson production in association with two jets. Journal of Physics G: Nuclear and Particle Physics, 48(8), Article 085006. https://doi.org/10.1088/1361-6471/abf7d6

We present compact analytic formulae for all one-loop amplitudes representing the production of a Higgs boson in association with two jets, mediated by a colour triplet scalar particle. Many of the integral coefficients present for scalar mediators a... Read More about Analytic results for scalar-mediated Higgs boson production in association with two jets.

JUNE: open-source individual-based epidemiology simulation (2021)
Journal Article
Aylett-Bullock, J., Cuesta-Lazaro, C., Quera-Bofarull, A., Icaza-Lizaola, M., Sedgewick, A., Truong, H., …Krauss, F. (2021). JUNE: open-source individual-based epidemiology simulation. Royal Society Open Science, 8(7), https://doi.org/10.1098/rsos.210506

We introduce June, an open-source framework for the detailed simulation of epidemics on the basis of social interactions in a virtual population constructed from geographically granular census data, reflecting age, sex, ethnicity and socio-economic i... Read More about JUNE: open-source individual-based epidemiology simulation.

Islands and mixed states in closed universes (2021)
Journal Article
Fallows, S., & Ross, S. F. (2021). Islands and mixed states in closed universes. Journal of High Energy Physics, 2021(7), Article 22. https://doi.org/10.1007/jhep07%282021%29022

We investigate the appearance of islands when a closed universe with gravity is entangled with a non-gravitating quantum system. We use braneworlds in three-dimensional multiboundary wormhole geometries as a model to explore what happens when the non... Read More about Islands and mixed states in closed universes.

Supersymmetric solitons and a degeneracy of solutions in AdS/CFT (2021)
Journal Article
Anabalón, A., & Ross, S. F. (2021). Supersymmetric solitons and a degeneracy of solutions in AdS/CFT. Journal of High Energy Physics, 2021(7), https://doi.org/10.1007/jhep07%282021%29015

We study Lorentzian supersymmetric configurations in D = 4 and D = 5 gauged N = 2 supergravity. We show that there are smooth 1/2 BPS solutions which are asymptotically AdS4 and AdS5 with a planar boundary, a compact spacelike direction and with a Wi... Read More about Supersymmetric solitons and a degeneracy of solutions in AdS/CFT.

SMEFT analysis of vector boson scattering and diboson data from the LHC Run II (2021)
Journal Article
Ethier, J. J., Gomez-Ambrosio, R., Magni, G., & Rojo, J. (2021). SMEFT analysis of vector boson scattering and diboson data from the LHC Run II. The European Physical Journal C, 81(6), https://doi.org/10.1140/epjc/s10052-021-09347-7

We present a systematic interpretation of vector boson scattering (VBS) and diboson measurements from the LHC in the framework of the dimension-six standard model effective field theory (SMEFT). We consider all available measurements of VBS fiducial... Read More about SMEFT analysis of vector boson scattering and diboson data from the LHC Run II.

A fully differential SMEFT analysis of the golden channel using the method of moments (2021)
Journal Article
Banerjee, S., Gupta, R. S., Ochoa-Valeriano, O., Spannowsky, M., & Venturini, E. (2021). A fully differential SMEFT analysis of the golden channel using the method of moments. Journal of High Energy Physics, 2021(6), Article 31. https://doi.org/10.1007/jhep06%282021%29031

The Method of Moments is a powerful framework to disentangle the relative contributions of amplitudes of a specific process to its various phase space regions. We apply this method to carry out a fully differential analysis of the Higgs decay channel... Read More about A fully differential SMEFT analysis of the golden channel using the method of moments.

EFT diagrammatica: UV roots of the CP-conserving SMEFT (2021)
Journal Article
Bakshi, S. D., Chakrabortty, J., Prakash, S., Rahaman, S. U., & Spannowsky, M. (2021). EFT diagrammatica: UV roots of the CP-conserving SMEFT. Journal of High Energy Physics, 2021(6), Article 33. https://doi.org/10.1007/jhep06%282021%29033

The Standard Model Effective Field Theory (SMEFT) is an established theoretical framework that parametrises the impact a UV theory has on low-energy observables. Such parametrization is achieved by studying the interactions of SM fields encapsulated... Read More about EFT diagrammatica: UV roots of the CP-conserving SMEFT.

Incoherent hydrodynamics of density waves in magnetic fields (2021)
Journal Article
Donos, A., Pantelidou, C., & Ziogas, V. (2021). Incoherent hydrodynamics of density waves in magnetic fields. Journal of High Energy Physics, 2021(5), Article 270. https://doi.org/10.1007/jhep05%282021%29270

We use holography to derive effective theories of fluctuations in spontaneously broken phases of systems with finite temperature, chemical potential, magnetic field and momentum relaxation in which the order parameters break translations. We analytic... Read More about Incoherent hydrodynamics of density waves in magnetic fields.

Challenges in Monte Carlo Event Generator Software for High-Luminosity LHC (2021)
Journal Article
Valassi, A., Yazgan, E., McFayden, J., Amoroso, S., Bendavid, J., Buckley, A., …Stewart, G. A. (2021). Challenges in Monte Carlo Event Generator Software for High-Luminosity LHC. Computing and Software for Big Science, 5(1), Article 12. https://doi.org/10.1007/s41781-021-00055-1

We review the main software and computing challenges for the Monte Carlo physics event generators used by the LHC experiments, in view of the High-Luminosity LHC (HL-LHC) physics programme. This paper has been prepared by the HEP Software Foundation... Read More about Challenges in Monte Carlo Event Generator Software for High-Luminosity LHC.

Extended Higgs boson sectors, effective field theory, and Higgs boson phenomenology (2021)
Journal Article
Anisha, Banerjee, U., Chakrabortty, J., Englert, C., & Spannowsky, M. (2021). Extended Higgs boson sectors, effective field theory, and Higgs boson phenomenology. Physical Review D, 103(9), https://doi.org/10.1103/physrevd.103.096009

We consider the phenomenological implications of charged scalar extensions of the Standard Model (SM) Higgs sector in addition to effective field theory (EFT) couplings of this new state to SM matter. We perform a detailed investigation of modificati... Read More about Extended Higgs boson sectors, effective field theory, and Higgs boson phenomenology.

Exact properties of an integrated correlator in $$ \mathcal{N} $$ = 4 SU(N) SYM (2021)
Journal Article
Dorigoni, D., Green, M. B., & Wen, C. (2021). Exact properties of an integrated correlator in $$ \mathcal{N} $$ = 4 SU(N) SYM. Journal of High Energy Physics, 2021(5), Article 89. https://doi.org/10.1007/jhep05%282021%29089

We present a novel expression for an integrated correlation function of four superconformal primaries in SU(N) N = 4 supersymmetric Yang-Mills (N = 4 SYM) theory. This integrated correlator, which is based on supersymmetric localisation, has been the... Read More about Exact properties of an integrated correlator in $$ \mathcal{N} $$ = 4 SU(N) SYM.