Outputs (1277)

NLO predictions for the production of a spin-two particle at the LHC (2017)
Journal Article

We obtain predictions accurate at the next-to-leading order in QCD for the production of a generic spin-two particle in the most relevant channels at the LHC: production in association with coloured particles (inclusive, one jet, two jets and tt¯), w... Read More about NLO predictions for the production of a spin-two particle at the LHC.

Off-Shell Higgs Coupling Measurements in BSM scenarios (2015)
Journal Article

Proposals of measuring the off-shell Higgs contributions and first measurements at the LHC have electrified the Higgs phenomenology community for two reasons: firstly, probing interactions at high invariant masses and momentum transfers is intrinsica... Read More about Off-Shell Higgs Coupling Measurements in BSM scenarios.

Defects in Chern-Simons theory, gauged WZW models on the brane, and level-rank duality (2015)
Journal Article

We consider Hanany-Witten setups of 3- and 5-branes in type IIB string theory that realize N=(1,0)N=(1,0) , (2, 0) and (1, 1) gauged WZW models in 1 + 1 dimensions. The gauged WZW models arise as theories residing on the boundary of D3 branes ending... Read More about Defects in Chern-Simons theory, gauged WZW models on the brane, and level-rank duality.

Forced Fluid Dynamics from Blackfolds in General Supergravity Backgrounds (2016)
Journal Article

We present a general treatment of the leading order dynamics of the collective modes of charged dilatonic p-brane solutions of (super) gravity theories in arbitrary backgrounds. To this end we employ the general strategy of the blackfold approach whi... Read More about Forced Fluid Dynamics from Blackfolds in General Supergravity Backgrounds.

QCDLoop: A comprehensive framework for one-loop scalar integrals (2016)
Journal Article

We present a new release of the QCDLoop library based on a modern object-oriented framework. We discuss the available new features such as the extension to the complex masses, the possibility to perform computations in double and quadruple precision... Read More about QCDLoop: A comprehensive framework for one-loop scalar integrals.

Unquenched flavor on the Higgs branch (2016)
Journal Article

We construct the gravity duals of the Higgs branches of three-dimensional (four-dimensional) super Yang-Mills theories coupled to Nf quark flavors. The effect of the quarks on the color degrees of freedom is included, and corresponds on the gravity s... Read More about Unquenched flavor on the Higgs branch.

A unitarity compatible approach to one-loop amplitudes with massive fermions (2017)
Journal Article

We explain how one-loop amplitudes with massive fermions can be computed using only on-shell information. We first use the spinor-helicity formalism in six dimensions to perform generalised unitarity cuts in d dimensions. We then show that divergent... Read More about A unitarity compatible approach to one-loop amplitudes with massive fermions.

Mock modular index of M2-M5 brane systems (2017)
Journal Article

We present Bogomolny-Prasad-Sommerfield (BPS) indices of the supergroup Wess-Zumino-Witten (WZW) models that live on intersecting M2-M5-brane systems. They can encode data of the stretched M2-branes between M5-branes and count the BPS states. They ar... Read More about Mock modular index of M2-M5 brane systems.

Next-to-leading order QCD corrections to di-photon production in association with up to three jets at the Large Hadron Collider (2014)
Journal Article

We present the computation of next-to-leading order (NLO) QCD corrections to di-photon production in association with two or three hard jets in pp collisions at a centre-of-mass energy of 8 TeV. The inclusion of NLO corrections is shown to substantia... Read More about Next-to-leading order QCD corrections to di-photon production in association with up to three jets at the Large Hadron Collider.

How to calculate dark matter direct detection exclusion limits that are consistent with gamma rays from annihilation in the Milky Way halo (2016)
Journal Article

When comparing constraints on the weakly interacting massive particle (WIMP) properties from direct and indirect detection experiments it is crucial that the assumptions made about the dark matter (DM) distribution are realistic and consistent. For i... Read More about How to calculate dark matter direct detection exclusion limits that are consistent with gamma rays from annihilation in the Milky Way halo.

Unique probe of dark matter in the core of M87 with the Event Horizon Telescope (2017)
Journal Article

We demonstrate the unprecedented capabilities of the Event Horizon Telescope (EHT) to image the innermost dark matter profile in the vicinity of the supermassive black hole at the center of the M87 radio galaxy. We present the first model of the sync... Read More about Unique probe of dark matter in the core of M87 with the Event Horizon Telescope.

Colour Reconnections in Quark and Gluon Jets in Herwig 7 (2017)
Journal Article

Major event generators deviate significantly in their description of quark and gluon initiated jets. The modelling of these is particularly sensitive to the colour reconnection model used in the cluster hadronization model in the event generator Herw... Read More about Colour Reconnections in Quark and Gluon Jets in Herwig 7.

Nested soft-collinear subtractions in NNLO QCD computations (2017)
Journal Article

We discuss a modification of the next-to-next-to-leading order (NNLO) subtraction scheme based on the residue-improved sector decomposition that reduces the number of double-real emission sectors from five to four. In particular, a sector where energ... Read More about Nested soft-collinear subtractions in NNLO QCD computations.

Total π + p cross section extracted from the leading neutron spectra at the LHC (2017)
Journal Article

We use the very forward neutron energy spectra measured by the LHC forward experiment at 7 TeV to extract the πþp total cross section at center-of-mass energies in the range 2.3–3.5 TeV. To do this, we have to first isolate the π-exchange pole in for... Read More about Total π + p cross section extracted from the leading neutron spectra at the LHC.

tt∗ equations, localization and exact chiral rings in 4d N = 2 SCFTs (2015)
Journal Article

We compute exact 2- and 3-point functions of chiral primaries in four-dimensional NN = 2 superconformal field theories, including all perturbative and instanton contributions. We demonstrate that these correlation functions are nontrivial and satisfy... Read More about tt∗ equations, localization and exact chiral rings in 4d N = 2 SCFTs.

A Lagrangian for self-dual strings (2015)
Journal Article

We propose a Lagrangian for the low-energy theory that resides at the (1 + 1)-dimensional intersection of N semi-infinite M2-branes ending orthogonally on M M5-branes in R1,2×C4/ZkR1,2×C4/Zk (for arbitrary positive integers N, M, k). We formulate thi... Read More about A Lagrangian for self-dual strings.

Higgsploding universe (2017)
Journal Article

Higgsplosion is a dynamical mechanism that introduces an exponential suppression of quantum fluctuations beyond the Higgsplosion energy scale E ∗ and further guarantees perturbative unitarity in multi-Higgs production processes. By calculating the Hi... Read More about Higgsploding universe.

Top-Bottom Interference Effects in Higgs Plus Jet Production at the LHC (2017)
Journal Article

We compute next-to-leading order QCD corrections to the top-bottom interference contribution to H þ j production at the LHC. To achieve this, we combine the recent computation of the two-loop amplitudes for gg → Hg and qg → Hq, performed in the appro... Read More about Top-Bottom Interference Effects in Higgs Plus Jet Production at the LHC.

Theory of non-Abelian superfluid dynamics (2017)
Journal Article

We write down a theory for non-Abelian superfluids with a partially broken (semisimple) Lie group. We adapt the off-shell formalism of hydrodynamics to superfluids and use it to comment on the superfluid transport compatible with the second law of th... Read More about Theory of non-Abelian superfluid dynamics.

DC conductivity and higher derivative gravity (2017)
Journal Article

For Gauss–Bonnet gravity and in the context of holography we show how the thermal DC conductivity can be obtained by solving a generalised system of Stokes equations for an auxiliary fluid on a curved black hole horizon. For more general higher deriv... Read More about DC conductivity and higher derivative gravity.