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Outputs (2904)

Relativistic collapse of axion stars (2018)
Journal Article
Michel, F., & Moss, I. G. (2018). Relativistic collapse of axion stars. Physics Letters B, 785, 9-13. https://doi.org/10.1016/j.physletb.2018.07.063

We study the gravitational collapse of axion dark matter in null coordinates, assuming spherical symmetry. Compared with previous studies, we use a simpler numerical scheme which can run, for relevant parameters, in a few minutes or less on a desktop... Read More about Relativistic collapse of axion stars.

Analytical Method for Next-to-Leading-Order QCD Corrections to Double-Higgs Production (2018)
Journal Article
Bonciani, R., Degrassi, G., Giardino, P. P., & Gröber, R. (2018). Analytical Method for Next-to-Leading-Order QCD Corrections to Double-Higgs Production. Physical Review Letters, 121(16), Article 162003. https://doi.org/10.1103/physrevlett.121.162003

We propose a new method to calculate analytically higher-order perturbative corrections and we apply it to the calculation of the two-loop virtual corrections to Higgs pair production through gluon fusion. The method is based on the expansion of the... Read More about Analytical Method for Next-to-Leading-Order QCD Corrections to Double-Higgs Production.

Mirror symmetry for G 2-manifolds: twisted connected sums and dual tops (2017)
Journal Article
Braun, A. P., & Del Zotto, M. (2017). Mirror symmetry for G 2-manifolds: twisted connected sums and dual tops. Journal of High Energy Physics, 2017(5), Article 80. https://doi.org/10.1007/jhep05%282017%29080

Recently, at least 50 million of novel examples of compact G 2 holonomy manifolds have been constructed as twisted connected sums of asymptotically cylindrical Calabi-Yau threefolds. The purpose of this paper is to study mirror symmetry for compactif... Read More about Mirror symmetry for G 2-manifolds: twisted connected sums and dual tops.

Leptogenesis in the Neutrino Option (2019)
Journal Article
Brivio, I., Moffat, K., Pascoli, S., Petcov, S., & Turner, J. (2019). Leptogenesis in the Neutrino Option. Journal of High Energy Physics, 2019(10), Article 59. https://doi.org/10.1007/jhep10%282019%29059

We examine the compatibility between the Neutrino Option, in which the electroweak scale is generated by PeV mass type I seesaw Majorana neutrinos, and leptogenesis. We find the Neutrino Option is consistent with resonant leptogenesis. Working within... Read More about Leptogenesis in the Neutrino Option.

Large D holography with metric deformations (2018)
Journal Article
Andrade, T., Pantelidou, C., & Withers, B. (2018). Large D holography with metric deformations. Journal of High Energy Physics, 2018(9), Article 138. https://doi.org/10.1007/jhep09%282018%29138

We consider Einstein gravity in AdS in the presence of a deformed conformal boundary metric, in the limit of large spacetime dimension. At leading order we find a new set of effective near-horizon equations. These can be understood as covariant gener... Read More about Large D holography with metric deformations.

W+W− H production at lepton colliders: a new hope for heavy neutral leptons (2018)
Journal Article
Baglio, J., Pascoli, S., & Weiland, C. (2018). W+W− H production at lepton colliders: a new hope for heavy neutral leptons. The European Physical Journal C, 78(10), Article 795. https://doi.org/10.1140/epjc/s10052-018-6279-x

We present the first study of the production of a Standard Model Higgs boson at a lepton collider in association with a pair of W bosons, e+e− → W+W− H, in the inverse seesaw model. Taking into account all relevant experimental and theoretical constr... Read More about W+W− H production at lepton colliders: a new hope for heavy neutral leptons.

E6 Yukawa couplings in F-theory as D-brane instanton effects (2017)
Journal Article
Collinucci, A., & García-Etxebarria, I. (2017). E6 Yukawa couplings in F-theory as D-brane instanton effects. Journal of High Energy Physics, 03, Article 155. https://doi.org/10.1007/jhep03%282017%29155

At weak coupling the neighborhood of a E6 Yukawa point in SU(5) GUT F-theory models is described by a non-resolvable orientifold of the conifold. We explicitly show, first directly in IIB and then via a mirror symmetry argument, that in this limit th... Read More about E6 Yukawa couplings in F-theory as D-brane instanton effects.

Revisiting the tt¯hh channel at the FCC-hh (2019)
Journal Article
Banerjee, S., Krauss, F., & Spannowsky, M. (2019). Revisiting the tt¯hh channel at the FCC-hh. Physical Review D, 100(7), Article 073012. https://doi.org/10.1103/physrevd.100.073012

The exploration of the scalar sector of the Standard Model is at the core of current and future science programs at collider experiments, with increasing focus on the self-interaction of the Higgs boson. This important parameter of the Higgs sector c... Read More about Revisiting the tt¯hh channel at the FCC-hh.

Hydrodynamics of broken global symmetries in the bulk (2019)
Journal Article
Donos, A., Martin, D., Pantelidou, C., & Ziogas, V. (2019). Hydrodynamics of broken global symmetries in the bulk. Journal of High Energy Physics, 2019(10), Article 218. https://doi.org/10.1007/jhep10%282019%29218

We consider holographic theories at finite temperature in which a continuous global symmetry in the bulk is spontaneously broken. We study the linear response of operators in a regime which is dual to time dependent, long wavelength deformations of s... Read More about Hydrodynamics of broken global symmetries in the bulk.