Outputs (842)

N=3 four dimensional field theories (2016)
Journal Article

We introduce a class of four dimensional field theories constructed by quotienting ordinary N=4 U(N ) SYM by particular combinations of R-symmetry and SL(2, ℤ) automorphisms. These theories appear naturally on the worldvolume of D3 branes probing ter... Read More about N=3 four dimensional field theories.

Ubiquity of non-geometry in heterotic compactifications (2017)
Journal Article

We study the effect of quantum corrections on heterotic compactifications on elliptic fibrations away from the stable degeneration limit, elaborating on a recent observation by Malmendier and Morrison. We show that already for the simplest nontrivial... Read More about Ubiquity of non-geometry in heterotic compactifications.

8d gauge anomalies and the topological Green-Schwarz mechanism (2017)
Journal Article

String theory provides us with 8d supersymmetric gauge theory with gauge algebras su(N), so(2N), sp(N), e6, e7 and e8, but no construction for so(2N+1), f4 and g2 is known. In this paper, we show that the theories for f4 and so(2N+1) have a global ga... Read More about 8d gauge anomalies and the topological Green-Schwarz mechanism.

Resolving the tensor structure of the Higgs coupling to Z bosons via Higgs-strahlung (2019)
Journal Article

We propose differential observables for pp → Zðlþl−Þhðb¯bÞ that can be used to completely determine the tensor structure of the hZZ=hZ¯ff couplings relevant to this process in the dimension-six Standard Model (SM) effective field theory. In particula... Read More about Resolving the tensor structure of the Higgs coupling to Z bosons via Higgs-strahlung.

Relaxion measure problem (2018)
Journal Article

We examine the necessity of requiring that relaxion dynamics is dominated by classical slow roll and not quantum fluctuations. It has been recently proposed by Nelson and Prescod-Weinstein [Phys. Rev. D 96, 113007 (2017)] that abandoning this require... Read More about Relaxion measure problem.

Review of the semiclassical formalism for multiparticle production at high energies (2019)
Journal Article

These notes provide a comprehensive review of the semiclassical approach for calculating multiparticle production rates for initial states with few particles at very high energies. In this work we concentrate on a scalar field theory with a mass gap.... Read More about Review of the semiclassical formalism for multiparticle production at high energies.

FCC-ee: The Lepton Collider (2019)
Journal Article

Geometry of Higgs-branch superconformal primary bundles (2018)
Journal Article

It is known that the two- and three-point functions of Higgs-branch superconformal primaries in 4d N = 2 superconformal field theories obey nonrenormalization theorems on N = 2 superconformal manifolds. In this paper, we prove a stronger statement—th... Read More about Geometry of Higgs-branch superconformal primary bundles.

Probing electroweak precision physics via boosted Higgs-strahlung at the LHC (2018)
Journal Article

We study the process pp → Zðlþl−Þhðbb¯Þ in the standard model effective field theory (SMEFT) at high energies using subjet techniques to reconstruct the Higgs boson. We show that at high energies this process probes four directions in the dimension-6... Read More about Probing electroweak precision physics via boosted Higgs-strahlung at the LHC.

Black disk radius constrained by unitarity (2018)
Journal Article

We argue that if the elastic proton–proton cross section increases with energy, the Froissart-like high energy behaviour of the elastic amplitude (which corresponds to a ‘black disk’ of radius R(s) = c ln s −βln(ln s)) is the only possibility to sati... Read More about Black disk radius constrained by unitarity.

On Higgs boson plus gluon amplitudes at one loop (2018)
Journal Article

We present analytic results for one-loop Higgs boson + n-gluon amplitudes for n ≤ 5 in the full theory including all dependence on the (top) quark mass. In this paper we consider only the case where the gluons all have the same helicity. The amplitud... Read More about On Higgs boson plus gluon amplitudes at one loop.

Hard photons in hadroproduction of top quarks with realistic final states (2018)
Journal Article

We present a complete description of top quark pair production in association with a hard photon in the dilepton channel. Our calculation is accurate to NLO in QCD. It is based on matrix elements for e+νeμ−ν¯¯¯μbb¯¯γ production and includes all reson... Read More about Hard photons in hadroproduction of top quarks with realistic final states.

Spectrum of a supersymmetric color superconductor (2019)
Journal Article

We have recently shown that the ground state of N = 4, SU(Nc) super Yang- Mills coupled to Nf ≪ Nc flavors, in the presence of non-zero isospin and R-symmetry charges, is a supersymmetric, superfluid, color superconductor. The holographic description... Read More about Spectrum of a supersymmetric color superconductor.

Wilson lines and Ishibashi states in AdS3/CFT2 (2018)
Journal Article

We provide a refined interpretation of a gravitational Wilson line in AdS3 in terms of Ishibashi states in the dual CFT2. Our strategy is to give a method to evaluate the Wilson line that accounts for all the information contained in the representati... Read More about Wilson lines and Ishibashi states in AdS3/CFT2.

The double-soft integral for an arbitrary angle between hard radiators (2018)
Journal Article

We consider the double-soft limit of a generic QCD process involving massless partons and integrate analytically the double-soft eikonal functions over the phasespace of soft partons (gluons or quarks) allowing for an arbitrary relative angle between... Read More about The double-soft integral for an arbitrary angle between hard radiators.

The transverse momentum spectrum of weak gauge bosons at N³LL + NNLO (2019)
Journal Article

We present accurate QCD predictions for the transverse momentum ( p⊥ ) spectrum of electroweak gauge bosons at the LHC for 13 TeV collisions, based on a consistent combination of a NNLO calculation at large p⊥ and N³ LL resummation in the small p⊥ li... Read More about The transverse momentum spectrum of weak gauge bosons at N³LL + NNLO.

Infrared sensitivity of single jet inclusive production at hadron colliders (2018)
Journal Article

Jet production at hadron colliders is a benchmark process to probe the dynamics of the strong interaction and the structure of the colliding hadrons. One of the most basic jet production observables is the single jet inclusive cross section, which is... Read More about Infrared sensitivity of single jet inclusive production at hadron colliders.

The twistor Wilson loop and the amplituhedron (2018)
Journal Article

The amplituhedron provides a beautiful description of perturbative superamplitude integrands in N = 4 SYM in terms of purely geometric objects, generalisations of polytopes. On the other hand the Wilson loop in supertwistor space also gives an explic... Read More about The twistor Wilson loop and the amplituhedron.

The Conway Moonshine Module is a Reflected K3 Theory (2020)
Journal Article

Recently, Duncan and Mack-Crane established an isomorphism, as Virasoro modules at central charges c = 12, between the space of states of the Conway Moonshine Module and the space of states of a special K3 theory that was extensively studied some tim... Read More about The Conway Moonshine Module is a Reflected K3 Theory.

Negative modes of Coleman–De Luccia and black hole bubbles (2018)
Journal Article

We study the negative modes of gravitational instantons representing vacuum decay in asymptotically flat space-time. We consider two different vacuum decay scenarios: the Coleman-de Luccia O(4)- symmetric bubble, and Oð3Þ × R instantons with a static... Read More about Negative modes of Coleman–De Luccia and black hole bubbles.