Outputs (482)

N = 7 On-shell diagrams and supergravity amplitudes in momentum twistor space (2021)
Journal Article

We derive an on-shell diagram recursion for tree-level scattering amplitudes in N = 7 supergravity. The diagrams are evaluated in terms of Grassmannian integrals and momentum twistors, generalising previous results of Hodges in momentum twistor space... Read More about N = 7 On-shell diagrams and supergravity amplitudes in momentum twistor space.

A new approach to modelling elastic and inelastic photon-initiated production at the LHC: SuperChic 4 (2020)
Journal Article

We present the results of the new SuperChic 4 Monte Carlo implementation of photon-initiated production in proton–proton collisions, considering as a first example the case of lepton pair production. This is based on the structure function calculatio... Read More about A new approach to modelling elastic and inelastic photon-initiated production at the LHC: SuperChic 4.

Higher form symmetries of Argyres-Douglas theories (2020)
Journal Article

We determine the structure of 1-form symmetries for all 4d N = 2 theories that have a geometric engineering in terms of type IIB string theory on isolated hypersurface singularities. This is a large class of models, that includes Argyres-Douglas theo... Read More about Higher form symmetries of Argyres-Douglas theories.

Higher form symmetries and M-theory (2020)
Journal Article

We discuss the geometric origin of discrete higher form symmetries of quantum field theories in terms of defect groups from geometric engineering in M-theory. The flux non-commutativity in M-theory gives rise to (mixed) ’t Hooft anomalies for the def... Read More about Higher form symmetries and M-theory.

Dual description of η-deformed OSP sigma models (2020)
Journal Article

We study the dual description of the η-deformed OSP(N|2m) sigma model in the asymptotically free regime (N > 2m + 2). Compared to the case of classical Lie groups, for supergroups there are inequivalent η-deformations corresponding to different choic... Read More about Dual description of η-deformed OSP sigma models.

Di-Higgs resonance searches in weak boson fusion (2020)
Journal Article

The search for di-Higgs final states is typically limited at the LHC to the dominant gluon fusion channels, with weak boson fusion only assuming a spectator role. In this work, we demonstrate that when it comes to searches for resonant structures tha... Read More about Di-Higgs resonance searches in weak boson fusion.

Spin structures and baby universes (2020)
Journal Article

We extend a 2d topological model of the gravitational path integral to include sums over spin structure, corresponding to Neveu-Schwarz (NS) or Ramond (R) boundary conditions for fermions. This path integral corresponds to a correlator of boundary cr... Read More about Spin structures and baby universes.

Infinite-Parameter ADHM Transform (2020)
Journal Article

The Atiyah–Drinfeld–Hitchin–Manin transform and its various generalizations are examples of nonlinear integral transforms between finite-dimensional moduli spaces. This note describes a natural infinite-dimensional generalization, where the transform... Read More about Infinite-Parameter ADHM Transform.

Higgs decay to fermion pairs at NLO in SMEFT (2020)
Journal Article

The calculation of next-to-leading order (NLO) perturbative corrections at fixed operator dimension in Standard Model Effective Field Theory (SMEFT) has been a topic of much recent interest. In this paper we obtain the NLO corrections from dimension-... Read More about Higgs decay to fermion pairs at NLO in SMEFT.

Comments on the stability of the KPV state (2020)
Journal Article

Using the blackfold approach, we study the classical stability of the KPV (Kachru-Pearson-Verlinde) state of anti-D3 branes at the tip of the Klebanov-Strassler throat. With regards to generic long-wavelength deformations considered, we found no inst... Read More about Comments on the stability of the KPV state.

Nothing is certain in string compactifications (2020)
Journal Article

A bubble of nothing is a spacetime instability where a compact dimension collapses. After nucleation, it expands at the speed of light, leaving “nothing” behind. We argue that the topological and dynamical mechanisms which could protect a compactific... Read More about Nothing is certain in string compactifications.

The simplest of them all: $$ t\overline{t}{W}^{\pm } $$ at NLO accuracy in QCD (2020)
Journal Article

Recent measurements of the pp → ttW¯ ± process in multi-lepton final states, as performed by the ATLAS collaboration in the context of the Higgs boson studies in the ttH¯ channel, have shown discrepancies between theoretical predictions and experimen... Read More about The simplest of them all: $$ t\overline{t}{W}^{\pm } $$ at NLO accuracy in QCD.

Hovering black holes from charged defects (2015)
Journal Article

Charge transport by holographic Fermi surfaces (2013)
Journal Article

Toward a 3d Ising model with a weakly-coupled string theory dual (2020)
Journal Article

It has long been expected that the 3d Ising model can be thought of as a string theory, where one interprets the domain walls that separate up spins from down spins as two-dimensional string worldsheets. The usual Ising Hamiltonian measures the area... Read More about Toward a 3d Ising model with a weakly-coupled string theory dual.

Eternal higher spin black holes: a thermofield Interpretation (2016)
Journal Article

Monopole correlations in holographically flavored liquids (2015)
Journal Article

Model-independent bounds on new physics effects in non-leptonic tree-level decays of B-mesons (2020)
Journal Article

The dark matter component of the Gaia radially anisotropic substructure (2020)
Journal Article

We study the properties of the dark matter component of the radially anisotropic stellar population recently identified in the Gaia data, using magneto-hydrodynamical simulations of Milky Way-like halos from the Auriga project. We identify 10 simulat... Read More about The dark matter component of the Gaia radially anisotropic substructure.

Holographic Abrikosov lattices (2020)
Journal Article

We study black hole solutions of D = 4 Einstein-Maxwell theory coupled to a charged scalar field that are holographically dual to a d = 3 conformal field theory with a non-vanishing chemical potential and constant magnetic field. We numerically const... Read More about Holographic Abrikosov lattices.