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ZZ production in gluon fusion at NLO matched to parton shower (2017)
Journal Article
Alioli, S., Caola, F., Luisoni, G., & Röntsch, R. (2017). ZZ production in gluon fusion at NLO matched to parton shower. Physical Review D, 95(3), Article 034042. https://doi.org/10.1103/physrevd.95.034042

We present a calculation of the next-to-leading order QCD corrections to the hadroproduction process gg→ZZ→e+e−μ+μ−, matched to the parton shower in the POWHEG framework. We take advantage of the POWHEG BOX tool for the implementation and rely on PYT... Read More about ZZ production in gluon fusion at NLO matched to parton shower.

Type-II Seesaw Model and Multilepton Signatures at Hadron Colliders (2017)
Journal Article
Mitra, M., Niyogi, S., & Spannowsky, M. (2017). Type-II Seesaw Model and Multilepton Signatures at Hadron Colliders. Physical Review D, 95(3), Article 035042. https://doi.org/10.1103/physrevd.95.035042

We investigate multilepton signatures, arising from the decays of doubly charged and singly charged Higgs bosons in the Type II seesaw model. Depending on the vacuum expectation value of the triplet vΔ, the doubly and singly charged Higgs bosons can... Read More about Type-II Seesaw Model and Multilepton Signatures at Hadron Colliders.

NNLL resummation for the associated production of a top pair and a Higgs boson at the LHC (2017)
Journal Article
Broggio, A., Ferroglia, A., Pecjak, B., & Yang, L. (2017). NNLL resummation for the associated production of a top pair and a Higgs boson at the LHC. Journal of High Energy Physics, 2017(2), Article 126. https://doi.org/10.1007/jhep02%282017%29126

We study the resummation of soft gluon emission corrections to the production of a top-antitop pair in association with a Higgs boson at the Large Hadron Collider. Starting from a soft-gluon resummation formula derived in previous work, we develop a... Read More about NNLL resummation for the associated production of a top pair and a Higgs boson at the LHC.

LHC multijet events as a probe for anomalous dimension-six gluon interactions (2017)
Journal Article
Krauss, F., Kuttimalai, S., & Plehn, T. (2017). LHC multijet events as a probe for anomalous dimension-six gluon interactions. Physical Review D, 95(3), Article 035024. https://doi.org/10.1103/physrevd.95.035024

Higher-dimensional multigluon interactions affect essentially all effective Lagrangian analyses at the LHC. We show that, contrary to common lore, such operators are best constrained in multijet production. Our limit on the corresponding new physics... Read More about LHC multijet events as a probe for anomalous dimension-six gluon interactions.

Maximizing the significance in Higgs boson pair analyses (2017)
Journal Article
Kling, F., Plehn, T., & Schichtel, P. (2017). Maximizing the significance in Higgs boson pair analyses. Physical Review D, 95(3), Article 035026. https://doi.org/10.1103/physrevd.95.035026

We study Higgs pair production with a subsequent decay to a pair of photons and a pair of bottoms at the LHC. We use the log-likelihood ratio to identify the kinematic regions which either allow us to separate the di-Higgs signal from backgrounds or... Read More about Maximizing the significance in Higgs boson pair analyses.

Next-to-Next-to Leading Order QCD Predictions for Single Jet Inclusive Production at the LHC (2017)
Journal Article
Currie, J., Glover, E., & Pires, J. (2017). Next-to-Next-to Leading Order QCD Predictions for Single Jet Inclusive Production at the LHC. Physical Review Letters, 118(7), Article 072002. https://doi.org/10.1103/physrevlett.118.072002

We report the first calculation of fully differential jet production at leading color in all partonic channels at next-to-next-to leading order in perturbative QCD and compare to the available ATLAS 7 TeV data. We discuss the size and shape of the pe... Read More about Next-to-Next-to Leading Order QCD Predictions for Single Jet Inclusive Production at the LHC.

Simulating b-associated production of Z and Higgs bosons with the SHERPA event generator (2017)
Journal Article
Krauss, F., Napoletano, D., & Schumann, S. (2017). Simulating b-associated production of Z and Higgs bosons with the SHERPA event generator. Physical Review D, 95(3), Article 036012. https://doi.org/10.1103/physrevd.95.036012

We compare four- and five-flavor scheme predictions for b-associated production of Z and Higgs bosons. The results are obtained with SHERPA ’s MC@NLO implementation for the four-flavor scheme, treating the b’s as massive, and with multijet merging at... Read More about Simulating b-associated production of Z and Higgs bosons with the SHERPA event generator.

Precision Determination of the Small-x Gluon from Charm Production at LHCb (2017)
Journal Article
Gauld, R., & Rojo, J. (2017). Precision Determination of the Small-x Gluon from Charm Production at LHCb. Physical Review Letters, 118(7), Article 072001. https://doi.org/10.1103/physrevlett.118.072001

The small-x gluon in global fits of parton distributions is affected by large uncertainties from the lack of direct experimental constraints. In this Letter, we provide a precision determination of the small-x gluon from the exploitation of forward c... Read More about Precision Determination of the Small-x Gluon from Charm Production at LHCb.

Towards the next generation of simplified Dark Matter models (2017)
Journal Article
Albert, A., Bauer, M., Brooke, J., Buchmueller, O., Cerdeño, D. G., Citron, M., …Wardle, N. (2017). Towards the next generation of simplified Dark Matter models. Physics of the Dark Universe, 16, 49-70. https://doi.org/10.1016/j.dark.2017.02.002

This White Paper is an input to the ongoing discussion about the extension and refinement of simplified Dark Matter (DM) models. It is not intended as a comprehensive review of the discussed subjects, but instead summarises ideas and concepts arising... Read More about Towards the next generation of simplified Dark Matter models.

Holography with a Landau pole (2017)
Journal Article
Faedo, A. F., Mateos, D., Pantelidou, C., & Tarrío, J. (2017). Holography with a Landau pole. Journal of High Energy Physics, 2017(2), Article 47. https://doi.org/10.1007/jhep02%282017%29047

Holography for UV-incomplete gauge theories is important but poorly understood. A paradigmatic example is d = 4, N=4N=4 super Yang-Mills coupled to Nf quark flavors, which possesses a Landau pole at a UV scale ΛLP. The dual gravity solution exhibits... Read More about Holography with a Landau pole.

Invisible decays in Higgs boson pair production (2017)
Journal Article
Banerjee, S., Batell, B., & Spannowsky, M. (2017). Invisible decays in Higgs boson pair production. Physical Review D, 95(3), Article 035009. https://doi.org/10.1103/physrevd.95.035009

Observation of Higgs pair production is an important long term objective of the LHC physics program as it will shed light on the scalar potential of the Higgs field and the nature of electroweak symmetry breaking. While numerous studies have examined... Read More about Invisible decays in Higgs boson pair production.

Diffusion and chaos from near AdS2 horizons (2017)
Journal Article
Blake, M., & Donos, A. (2017). Diffusion and chaos from near AdS2 horizons. Journal of High Energy Physics, 2017(2), Article 13. https://doi.org/10.1007/jhep02%282017%29013

We calculate the thermal diffusivity D = κ/cρ and butterfly velocity vB in holographic models that flow to AdS2 × Rd fixed points in the infra-red. We show that both these quantities are governed by the same irrelevant deformation of AdS2 and hence e... Read More about Diffusion and chaos from near AdS2 horizons.

Quark-gluon tagging with shower deconstruction: Unearthing dark matter and Higgs couplings (2017)
Journal Article
Ferreira de Lima, D., Petrov, P., Soper, D., & Spannowsky, M. (2017). Quark-gluon tagging with shower deconstruction: Unearthing dark matter and Higgs couplings. Physical Review D, 95(3), Article 034001. https://doi.org/10.1103/physrevd.95.034001

The separation of quark and gluon initiated jets can be an important way to improve the sensitivity in searches for new physics or in measurements of Higgs boson properties. We present a simplified version of the shower deconstruction approach as a n... Read More about Quark-gluon tagging with shower deconstruction: Unearthing dark matter and Higgs couplings.

Tagging a monotop signature in natural SUSY (2017)
Journal Article
Gonçalves, D., Sakurai, K., & Takeuchi, M. (2017). Tagging a monotop signature in natural SUSY. Physical Review D, 95(1), Article 015030. https://doi.org/10.1103/physrevd.95.015030

We study the feasibility of probing a region of natural supersymmetry where the stop and Higgsino masses are compressed. Although this region is most effectively searched for in the monojet channel, this signature is present in many other nonsupersym... Read More about Tagging a monotop signature in natural SUSY.

Thermal backflow in CFTs (2017)
Journal Article
Banks, E., Donos, A., Gauntlett, J. P., Griffin, T., & Melgar, L. (2017). Thermal backflow in CFTs. Physical Review D, 95(2), Article 025022. https://doi.org/10.1103/physrevd.95.025022

We study the thermal transport properties of general conformal field theories (CFTs) on curved spacetimes in the leading order viscous hydrodynamic limit. At the level of linear response, we show that the thermal transport is governed by a system of... Read More about Thermal backflow in CFTs.

Exclusive J=ψ production at the LHC in the kT factorisation approach (2017)
Journal Article
Jones, S., Martin, A., Ryskin, M., & Teubner, T. (2017). Exclusive J=ψ production at the LHC in the kT factorisation approach. Journal of Physics G: Nuclear and Particle Physics, 44(3), Article 03LT01. https://doi.org/10.1088/1361-6471/aa56ea

The recent LHCb data for exclusive J y peripheral production at 13 TeV motivate an improved ‘NLO’ analysis to estimate the gluon distribution at low x in which we re-calculate the rapidity gap survival factors and use a more precise expression for th... Read More about Exclusive J=ψ production at the LHC in the kT factorisation approach.

Large-N correlation functions in N = 2 superconformal QCD (2017)
Journal Article
Baggio, M., Niarchos, V., Papadodimas, K., & Vos, G. (2017). Large-N correlation functions in N = 2 superconformal QCD. Journal of High Energy Physics, 2017(01), Article 101. https://doi.org/10.1007/jhep01%282017%29101

We study extremal correlation functions of chiral primary operators in the large-N SU(N ) NN = 2 superconformal QCD theory and present new results based on supersymmetric localization. We discuss extensively the basis-independent data that can be ext... Read More about Large-N correlation functions in N = 2 superconformal QCD.

Perturbative Higgs coupling CP violation, unitarity, and phenomenology (2017)
Journal Article
Englert, C., Nordström, K., Sakurai, K., & Spannowsky, M. (2017). Perturbative Higgs coupling CP violation, unitarity, and phenomenology. Physical Review D, 95(1), Article 015018. https://doi.org/10.1103/physrevd.95.015018

Perturbative probability conservation provides a strong constraint on the presence of new interactions of the Higgs boson. In this work we consider CP-violating Higgs interactions in conjunction with unitarity constraints in the gauge-Higgs and fermi... Read More about Perturbative Higgs coupling CP violation, unitarity, and phenomenology.

Redefining the Axion Window (2017)
Journal Article
Di Luzio, L., Mescia, F., & Nardi, E. (2017). Redefining the Axion Window. Physical Review Letters, 118(3), Article 031801. https://doi.org/10.1103/physrevlett.118.031801

A major goal of axion searches is to reach inside the parameter space region of realistic axion models. Currently, the boundaries of this region depend on somewhat arbitrary criteria, and it would be desirable to specify them in terms of precise phen... Read More about Redefining the Axion Window.