Outputs (10)

Di-Higgs final states augMT2ed – Selecting hh events at the high luminosity LHC (2013)
Journal Article
Barr, A. J., Dolan, M. J., Englert, C., & Spannowsky, M. (2014). Di-Higgs final states augMT2ed – Selecting hh events at the high luminosity LHC. Physics Letters B, 728, 308-313. https://doi.org/10.1016/j.physletb.2013.12.011

Higgs boson self-interactions can be investigated via di-Higgs (pp→hh+X) production at the LHC. With a small O(30) fb Standard Model production cross section, and a large View the MathML source background, this measurement has been considered challen... Read More about Di-Higgs final states augMT2ed – Selecting hh events at the high luminosity LHC.

LHC probes the hidden sector (2013)
Journal Article
Jaeckel, J., Jankowiak, M., & Spannowsky, M. (2013). LHC probes the hidden sector. Physics of the Dark Universe, 2(3), 111-117. https://doi.org/10.1016/j.dark.2013.06.001

In this note we establish LHC limits on a variety of benchmark models for hidden sector physics using 2011 and 2012 data. First, we consider a “hidden’’ U(1) gauge boson under which all Standard Model particles are uncharged at tree-level and which i... Read More about LHC probes the hidden sector.

Pinning down Higgs triplets at the LHC (2013)
Journal Article
Englert, C., Re, E., & Spannowsky, M. (2013). Pinning down Higgs triplets at the LHC. Physical Review D, 88(3), Article 035024. https://doi.org/10.1103/physrevd.88.035024

Extensions of the standard model Higgs sector involving weak isotriplet scalars are not only benchmark candidates to reconcile observed anomalies of the recently discovered Higgs-like particle, but also exhibit a vast parameter space, for which the l... Read More about Pinning down Higgs triplets at the LHC.

The shape of spins (2013)
Journal Article
Englert, C., Gonçalves, D., Nail, G., & Spannowsky, M. (2013). The shape of spins. Physical Review D, 88(1), Article 013016. https://doi.org/10.1103/physrevd.88.013016

After the discovery of a Higgs-like particle at the LHC, the determination of its spin quantum numbers across different channels will be the next step in arriving at a more precise understanding of the new state and its role in electroweak symmetry b... Read More about The shape of spins.

Triplet Higgs boson collider phenomenology after the LHC (2013)
Journal Article
Englert, C., Re, E., & Spannowsky, M. (2013). Triplet Higgs boson collider phenomenology after the LHC. Physical Review D, 87(9), Article 095014. https://doi.org/10.1103/physrevd.87.095014

ATLAS and CMS have discovered a standard model (SM) Higgs-like particle. One of the main discovery channels is the Higgs decay to two photons, which, at the moment, seems to be considerably enhanced over the standard model expectation. Models with ad... Read More about Triplet Higgs boson collider phenomenology after the LHC.

Emergence of the electroweak scale through the Higgs portal (2013)
Journal Article
Englert, C., Jaeckel, J., Khoze, V., & Spannowsky, M. (2013). Emergence of the electroweak scale through the Higgs portal. Journal of High Energy Physics, 2013(4), Article 60. https://doi.org/10.1007/jhep04%282013%29060

Having discovered a candidate for the final piece of the Standard Model, the Higgs boson, the question remains why its vacuum expectation value and its mass are so much smaller than the Planck scale (or any other high scale of new physics). One elega... Read More about Emergence of the electroweak scale through the Higgs portal.

Making the most of missing transverse energy: Mass reconstruction from collimated decays (2013)
Journal Article
Spannowsky, M., & Wymant, C. (2013). Making the most of missing transverse energy: Mass reconstruction from collimated decays. Physical Review D, 87(7), Article 074004. https://doi.org/10.1103/physrevd.87.074004

At hadron colliders invisible particles χ can be inferred only through observation of the transverse component of the vectorial sum of their momenta—missing ET or missing transverse energy (MET)—preventing reconstruction of the masses of their mother... Read More about Making the most of missing transverse energy: Mass reconstruction from collimated decays.

Finding top quarks with shower deconstruction (2013)
Journal Article
Soper, D. E., & Spannowsky, M. (2013). Finding top quarks with shower deconstruction. Physical Review D, 87(5), Article 054012. https://doi.org/10.1103/physrevd.87.054012

We develop a new method for tagging jets produced by hadronically decaying top quarks. The method is an application of shower deconstruction, a maximum information approach that was previously applied to identifying jets produced by Higgs bosons that... Read More about Finding top quarks with shower deconstruction.

New Physics in LHC Higgs boson pair production (2013)
Journal Article
Dolan, M. J., Englert, C., & Spannowsky, M. (2013). New Physics in LHC Higgs boson pair production. Physical Review D, 87(5), Article 055002. https://doi.org/10.1103/physrevd.87.055002

Multi-Higgs production provides a phenomenologically clear window to the electroweak symmetry-breaking sector. We perform a comprehensive and comparative analysis of new electroweak physics effects in di-Higgs and di−Higgs+jet production. In particul... Read More about New Physics in LHC Higgs boson pair production.

Extracting precise Higgs couplings by using the matrix element method (2013)
Journal Article
Andersen, J., Englert, C., & Spannowsky, M. (2013). Extracting precise Higgs couplings by using the matrix element method. Physical Review D, 87(1), Article 015019. https://doi.org/10.1103/physrevd.87.015019

After the recent discovery of a Standard Model Higgs bosonlike particle at the LHC, the question of its couplings to known and unknown matter is eminent. In this paper, we present a method that allows for an enhancement in signal over background (irr... Read More about Extracting precise Higgs couplings by using the matrix element method.