Outputs (628)

(Mis-)matching type-B anomalies on the Higgs branch (2021)
Journal Article

Building on [1], we uncover new properties of type-B conformal anomalies for Coulomb-branch operators in continuous families of 4D N = 2 SCFTs. We study a large class of such anomalies on the Higgs branch, where conformal symmetry is spontaneously br... Read More about (Mis-)matching type-B anomalies on the Higgs branch.

The fate of U(1)'s at strong coupling in F-theory (2014)
Journal Article

The Vertical, the Horizontal and the Rest: anatomy of the middle cohomology of Calabi-Yau fourfolds and F-theory applications (2015)
Journal Article

Heterotic-Type IIA Duality and Degenerations of K3 Surfaces (2016)
Journal Article

We study the duality between four-dimensional N = 2 compactifications of heterotic and type IIA string theories. Via adiabatic fibration of the duality in six dimensions, type IIA string theory compactified on a K3-fibred Calabi-Yau threefold has a p... Read More about Heterotic-Type IIA Duality and Degenerations of K3 Surfaces.

Infinitely many M2-instanton corrections to M-theory on G$_2$-manifolds (2018)
Journal Article

Higgs phenomenology as a probe of sterile neutrinos (2019)
Journal Article

Physics beyond the Standard Model can manifest itself as both new light states and heavy degrees of freedom. In this paper, we assume that the former comprise only a sterile neutrino, N. Therefore, the most agnostic description of the new physics is... Read More about Higgs phenomenology as a probe of sterile neutrinos.

The S-matrix bootstrap IV: multiple amplitudes (2019)
Journal Article

We explore the space of consistent three-particle couplings in ℤ2-symmetric two-dimensional QFTs using two first-principles approaches. Our first approach relies solely on unitarity, analyticity and crossing symmetry of the two-to-two scattering ampl... Read More about The S-matrix bootstrap IV: multiple amplitudes.

Simulating seeded vacuum decay in a cold atom system (2019)
Journal Article

We propose to test the concept of seeded vacuum decay in cosmology using a Bose-Einstein condensate system. The role of the nucleation seed is played by a vortex within the condensate. We present two complementary theoretical analyses that demonstrat... Read More about Simulating seeded vacuum decay in a cold atom system.

Parton showers and matching uncertainties in top quark pair production with Herwig 7 (2019)
Journal Article

We evaluate the theoretical uncertainties in next-to-leading order plus parton shower predictions for top quark pair production and decay in hadronic collisions. Our work is carried out using the Herwig 7 event generator and presents an in-depth stud... Read More about Parton showers and matching uncertainties in top quark pair production with Herwig 7.

Proper Motions of the Satellites of M31 (2019)
Journal Article

We predict the range of proper motions of 19 satellite galaxies of M31 that would rotationally stabilize the M31 plane of satellites consisting of 15–20 members as identified by Ibata et al. Our prediction is based purely on the current positions and... Read More about Proper Motions of the Satellites of M31.

H + 1 jet production revisited (2019)
Journal Article

We revisit the next-to-next-to-leading order (NNLO) calculation of the Higgs boson+1 jet production process, calculated in the mt → ∞ effective field theory. We perform a detailed comparison of the result calculated using the jettiness slicing method... Read More about H + 1 jet production revisited.

OpenLoops 2 (2019)
Journal Article

We present the new version of OpenLoops, an automated generator of tree and one-loop scattering amplitudes based on the open-loop recursion. One main novelty of OpenLoops 2 is the extension of the original algorithm from NLO QCD to the full Standard... Read More about OpenLoops 2.

First-Principles Simulations of 1+1D Quantum Field Theories at θ=π and Spin Chains (2020)
Journal Article

We present a lattice study of a 2-flavor U(1) gauge-Higgs model quantum field theory with a topological term at θ = π. Such studies are prohibitively costly in the standard lattice formulation due to the sign problem. Using a novel discretization of... Read More about First-Principles Simulations of 1+1D Quantum Field Theories at θ=π and Spin Chains.

Single Particle Operators and their Correlators in Free N=4 SYM (2020)
Journal Article

We consider a set of half-BPS operators in N = 4 super Yang-Mills theory which are appropriate for describing single-particle states of superstring theory on AdS5 × S5. These single-particle operators are defined to have vanishing two-point functions... Read More about Single Particle Operators and their Correlators in Free N=4 SYM.

Resonant heavy Higgs searches at the HL-LHC (2019)
Journal Article

In this work, we show the importance of searches for heavy resonant scalars (H) and pseudoscalars (A). Taking cue from the present searches, we make projections for searches in an extended scalar sector at the high luminosity run of the Large Hadron... Read More about Resonant heavy Higgs searches at the HL-LHC.

NLO corrections to h → bb¯ decay in SMEFT (2019)
Journal Article

We calculate the full set of next-to-leading order (NLO) corrections to h → b b¯¯ decay in the dimension-6 Standard Model Effective Field Theory (SMEFT). Our calculation forms the basis for precision studies of this decay mode in effective field theo... Read More about NLO corrections to h → bb¯ decay in SMEFT.

Stability and Vacuum Energy in Open String Models with Broken Supersymmetry (2019)
Journal Article

We construct type I string models with supersymmetry broken by compactifi- cation that are non-tachyonic and have exponentially small effective potential at one-loop. All open string moduli can be stabilized, while the closed string moduli remain mas... Read More about Stability and Vacuum Energy in Open String Models with Broken Supersymmetry.

IIB flux non-commutativity and the global structure of field theories (2019)
Journal Article

We discuss the origin of the choice of global structure for six dimensional (2, 0) theories and their compactifications in terms of their realization from IIB string theory on ALE spaces. We find that the ambiguity in the choice of global structure o... Read More about IIB flux non-commutativity and the global structure of field theories.

On Mirror Maps for Manifolds of Exceptional Holonomy (2019)
Journal Article

We study mirror symmetry of type II strings on manifolds with the exceptional holonomy groups G2 and Spin(7). Our central result is a construction of mirrors of Spin(7) manifolds realized as generalized connected sums. In parallel to twisted connecte... Read More about On Mirror Maps for Manifolds of Exceptional Holonomy.

Calculations for deep inelastic scattering using fast interpolation grid techniques at NNLO in QCD and the extraction of αs from HERA data (2019)
Journal Article

The extension of interpolation-grid frameworks for perturbative QCD calculations at next-to-next-to-leading order (NNLO) is presented for deep inelastic scattering (DIS) processes. A fast and flexible evaluation of higher-order predictions for any a... Read More about Calculations for deep inelastic scattering using fast interpolation grid techniques at NNLO in QCD and the extraction of αs from HERA data.