Outputs (811)

Phase structure of self-dual lattice gauge theories in 4d (2022)
Journal Article

We discuss U(1) lattice gauge theory models based on a modified Villain formulation of the gauge action, which allows coupling to bosonic electric and magnetic matter. The formulation enjoys a duality which maps electric and magnetic sectors into eac... Read More about Phase structure of self-dual lattice gauge theories in 4d.

Third-Order Fiducial Predictions for Drell-Yan Production at the LHC (2022)
Journal Article

The Drell-Yan process at hadron colliders is a fundamental benchmark for the study of strong interactions and the extraction of electroweak parameters. The outstanding precision of the LHC demands very accurate theoretical predictions with a full acc... Read More about Third-Order Fiducial Predictions for Drell-Yan Production at the LHC.

Non-local slicing approaches for NNLO QCD in MCFM (2022)
Journal Article

We present the implementation of several processes at Next-to-Next-to Leading Order (NNLO) accuracy in QCD in the parton-level Monte Carlo program MCFM. The processes treated are pp → H, W±, Z, W±H, ZH, W±γ, Zγ and γγ and, for the first time in the c... Read More about Non-local slicing approaches for NNLO QCD in MCFM.

SU(3) breaking effects in B and D meson lifetimes (2022)
Journal Article

In the heavy quark expansion (HQE) of the total decay rates of Bs and D+s mesons non-perturbative matrix elements of four quark operators are arising as phase space enhanced contributions. We present the first determination of ms effects to the dimen... Read More about SU(3) breaking effects in B and D meson lifetimes.

The 3d twisted index and wall-crossing (2022)
Journal Article

We study the twisted index of 3d N = 2 supersymmetric gauge theories on S 1 ×Σ in the presence of a real FI parameter deformation. This parameter induces a 1d FI parameter for the effective supersymmetric quantum mechanics on S 1 . Using supersymmetr... Read More about The 3d twisted index and wall-crossing.

Implementation of angularly ordered electroweak parton shower in Herwig 7 (2022)
Journal Article

We discuss the necessary steps for implementing an angularly ordered (AO) electroweak (EW) parton shower in Herwig 7 multi-purpose event generator. This includes calculating the helicity-dependent quasi-collinear EW branching functions that correspon... Read More about Implementation of angularly ordered electroweak parton shower in Herwig 7.

Shape-Morphing of an Artificial Protein Cage with Unusual Geometry Induced by a Single Amino Acid Change (2022)
Journal Article

Artificial protein cages are constructed from multiple protein subunits. The interaction between the subunits, notably the angle formed between them, controls the geometry of the resulting cage. Here, using the artificial protein cage, “TRAP-cage”, w... Read More about Shape-Morphing of an Artificial Protein Cage with Unusual Geometry Induced by a Single Amino Acid Change.

Bayesian Emulation and History Matching of JUNE (2022)
Journal Article

We analyse JUNE: a detailed model of Covid-19 transmission with high spatial and demographic resolution, developed as part of the RAMP initiative. JUNE requires substantial computational resources to evaluate, making model calibration and general unc... Read More about Bayesian Emulation and History Matching of JUNE.

Effective Lagrangian for non-Abelian two-dimensional topological field theory (2022)
Journal Article

We develop a systematic approach to obtain an effective Lagrangian for 2D non-Abelian topological BF theory. A general expression is presented in a diagrammatic representation containing solely scalar fields. Expressions for the and effective actions... Read More about Effective Lagrangian for non-Abelian two-dimensional topological field theory.

Resurrecting the fraternal twin WIMP miracle (2022)
Journal Article

In twin Higgs models that contain the minimal particle content required to address the little hierarchy problem (i.e., fraternal models), the twin tau has been identified as a promising candidate for dark matter. In this class of scenarios, however,... Read More about Resurrecting the fraternal twin WIMP miracle.

Artificial Protein Cage with Unusual Geometry and Regularly Embedded Gold Nanoparticles (2022)
Journal Article

Artificial protein cages have great potential in a number of areas including cargo capture and delivery and as artificial vaccines. Here, we investigate an artificial protein cage whose assembly is triggered by gold nanoparticles. Using biochemical a... Read More about Artificial Protein Cage with Unusual Geometry and Regularly Embedded Gold Nanoparticles.

Constraints on cosmologies inside black holes (2022)
Journal Article

We study the construction of holographic models with closed FRW cosmologies on the worldvolume of a constant-tension brane inside a Schwarzschild-AdS black hole. In dimensions d > 2, having a smooth Euclidean solution where the brane does not self-in... Read More about Constraints on cosmologies inside black holes.

Dilepton Rapidity Distribution in Drell-Yan Production to Third Order in QCD (2022)
Journal Article

We compute for the first time the lepton-pair rapidity distribution in the photon-mediated Drell-Yan process to next-to-next-to-next-to-leading order in QCD. The calculation is based on the qT -subtraction method, suitably extended to this order for... Read More about Dilepton Rapidity Distribution in Drell-Yan Production to Third Order in QCD.

Central instanton production (2022)
Journal Article

We study the central production of QCD instantons at hadron colliders in events with two large rapidity gaps. These gaps in rapidity are formed by either Pomeron or photon exchanges or a combination of the two. The kT-factorization formalism is used... Read More about Central instanton production.

Predictions of exclusive ϒ photoproduction at the LHC and future colliders (2022)
Journal Article

The cross section for exclusive ϒ ultraperipheral photoproduction at present and future colliders is determined using the low x gluon parton distribution function extracted from an analysis of exclusive J=ψ measurements performed at the Hadron-Electr... Read More about Predictions of exclusive ϒ photoproduction at the LHC and future colliders.

New anomalies, TQFTs, and confinement in bosonic chiral gauge theories (2022)
Journal Article

We study a class of 4-dimensional SU(N) chiral gauge theories with fermions in the 2-index symmetric and antisymmetric representations and classify their infrared phases. The choice N = 4ℤ corresponds to gauging the fermion number and makes the theor... Read More about New anomalies, TQFTs, and confinement in bosonic chiral gauge theories.

Web of Seiberg-like dualities for 3D N=2 quivers (2022)
Journal Article

We construct Seiberg-like dualities of 3D N ¼ 2 general quiver gauge theories with unitary, symplectic, and orthogonal gauge groups coupled to fundamental and bifundamental matter fields. We illustrate this with several examples of linear, circular,... Read More about Web of Seiberg-like dualities for 3D N=2 quivers.

The twisted index and topological saddles (2022)
Journal Article

The twisted index of 3d N = 2 gauge theories on S 1 × Σ has an algebrogeometric interpretation as the Witten index of an effective supersymmetric quantum mechanics. In this paper, we consider the contributions to the supersymmetric quantum mechanics... Read More about The twisted index and topological saddles.

Evolving Heterotic Gauge Backgrounds: Genetic Algorithms versus Reinforcement Learning (2022)
Journal Article

The immensity of the string landscape and the difficulty of identifying solutions that match the observed features of particle physics have raised serious questions about the predictive power of string theory. Modern methods of optimisation and searc... Read More about Evolving Heterotic Gauge Backgrounds: Genetic Algorithms versus Reinforcement Learning.

Transverse momentum distributions in low-mass Drell-Yan lepton pair production at NNLO QCD (2022)
Journal Article

The production of lepton pairs at low invariant mass and finite transverse momentum resolves QCD dynamics at the boundary between the perturbative and non-perturbative domains. We investigate the impact of NNLO QCD corrections on these observables at... Read More about Transverse momentum distributions in low-mass Drell-Yan lepton pair production at NNLO QCD.