Colour rearrangement for dipole showers

Bellm, Johannes

doi:10.1140/epjc/s10052-018-6070-z

Cited by 43 publications

(56 citation statements)

References 45 publications

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“…The smooth evolution of particle ratios suggests the similarity of the underlying mechanisms despite the differences in the initial colliding systems. Comparisons with predictions from QCD-inspired models such as PYTHIA8 [15], DIPSY [16,17,18] and HERWIG7 [19,20] have also been performed. The color reconnection mechanism in PYTHIA8 ALI-PREL-110939 Figure 3.…”

Section: Analysis Descriptionmentioning

confidence: 99%

Identified particle production in pp collisions at = 7 and 13 TeV measured with ALICE

Souza

2017

J. Phys.: Conf. Ser.

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Abstract. Proton-proton (pp) collisions have been used extensively as a reference for the study of interactions of larger colliding systems at the LHC. Recent measurements performed in high-multiplicity pp and proton-lead (p-Pb) collisions have shown features that are reminiscent of those observed in lead-lead (Pb-Pb) collisions. In this context, the study of identified particle spectra and yields as a function of multiplicity is a key tool for the understanding of similarities and differences between small and large systems. We report on the production of pions, kaons, protons, K 0 S , Λ, Ξ, Ω and K * 0 as a function of multiplicity in pp collisions at √ s = 7 TeV measured with the ALICE experiment. The work presented here represents the most comprehensive set of results on identified particle production in pp collisions at the LHC. Spectral shapes, studied both for individual particles and via particle ratios as a function of pT, exhibit an evolution with charged particle multiplicity that is similar to the one observed in larger systems. In addition, results on the production of light flavour hadrons in pp collisions at √ s = 13 TeV, the highest centre-of-mass energy ever reached in the laboratory, are also presented and compared with previous, lower energy results.

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Section: Analysis Descriptionmentioning

confidence: 99%

Identified particle production in pp collisions at = 7 and 13 TeV measured with ALICE

Souza

2017

J. Phys.: Conf. Ser.

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“…Later work [14] expanded upon this model to introduce the possibility of forming so-called baryonic clusters qqq andqqq from three ordinary/mesonic clusters. Other methods have investigated colour reconnection at the perturbative stages of event simulation or taken inspiration from perturbative techniques [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Spacetime colour reconnection in Herwig 7

et al. 2019

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“…We have also performed a cross-check of the signal events using Herwig 7 [126,127] finding good agreement at all stages in the analysis chain.…”

Section: Standard Di-higgs Productionmentioning

confidence: 82%

Invisible decays in Higgs boson pair production

2017

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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 the impact of new physics on diHiggs production, little attention has been given to the well-motivated possibility of exotic Higgs decays in this channel. Here we investigate the consequences of exotic invisible Higgs decays in diHiggs production. We outline a search sensitive to such invisible decays in the bb + E T channel. We demonstrate that probing invisible branching ratios of order 10% during the LHC's high-luminosity run will be challenging, but in resonance enhanced di-Higgs production, this final state can become crucial to establish the existence of physics beyond the Standard Model at collider energies. We also briefly discuss the outlook for other exotic Higgs decay modes and the potential to observe such exotic decays in the di-Higgs channel.

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Colour rearrangement for dipole showers

Abstract: We present an algorithm to rearrange the colour chains of dipole showers in the shower process according to the colour amplitudes of a simple matrix element. We implement the procedure in the dipole shower of Herwig and show comparisons to data.

Cited by 43 publications

References 45 publications

Identified particle production in pp collisions at = 7 and 13 TeV measured with ALICE

Identified particle production in pp collisions at = 7 and 13 TeV measured with ALICE

Spacetime colour reconnection in Herwig 7

Invisible decays in Higgs boson pair production

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