On the dynamics of a color rope

Andersson, Bo; Henning, Peter A.

doi:10.1016/0550-3213(91)90303-f

Cited by 34 publications

(25 citation statements)

References 18 publications

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“…The prediction of this model agrees qualitatively with the observed increasing trend of the strangeness production [15]. Another model which qualitatively describes the data is the color ropes mechanism [16,17] implemented in DIPSY [18] taking into account the color interactions between strings. Other interesting extensions to the Lund string fragmentation model are implemented in PYTHIA8 [19] by considering thermodynamic features of strings in a dense environment [20] and used to explain some of the changing flavor composition on multiplicity.…”

Section: Introductionsupporting

confidence: 75%

Effect of single string structure and multiple string interaction on strange particle production in pp collisions at s=7TeV

et al. 2018

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We present a systematic study on the strange particle production at the Large Hadron Collider (LHC) in proton-proton (pp) collisions at √ s = 7 TeV based on the PACIAE simulations. Two different mechanisms accounting for single string structure variations and multiple string interactions are implemented in the simulations. These modifications give rise to increased effective string tension in the Lund fragmentation model and generate more strange particles in the hadronic final state. By comparing the results with a wealth of the LHC data, it is turned out that the inclusion of variable effective string tension is capable to reach an improved agreement between theory and experiment, especially on the recently observed multiplicity dependence of strangeness enhancement in pp collisions. This approach provides us a new method to understand the microscopic picture of the novel high multiplicity pp events collected at the LHC in the string fragmentation framework.

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Section: Introductionsupporting

confidence: 75%

Effect of single string structure and multiple string interaction on strange particle production in pp collisions at s=7TeV

et al. 2018

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“…Within this context, it is important to note that CR can mimic flow effects to some extent, via the creation of boosted strings [75]. Alternatively, it is possible that the effective string tension could be rising, as in the idea of colour ropes [76], with recent work along these lines reported on by the Lund group [77]. Finally, we note that non-hydro rescattering has also been proposed [78] as a potential mechanism contributing to the rise of p ⊥ (n Ch ), though the explicit model of parton-parton rescattering effects presented in [78] found only very small effects.…”

Section: Introductionmentioning

confidence: 99%

String formation beyond leading colour

Christiansen

Skands

2015

J. High Energ. Phys.

260

287

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We present a new model for the hadronisation of multi-parton systems, in which colour correlations beyond leading N C are allowed to influence the formation of confining potentials (strings). The multiplet structure of SU(3) is combined with a minimisation of the string potential energy, to decide between which partons strings should form, allowing also for "baryonic" configurations (e.g., two colours can combine coherently to form an anticolour). In e + e − collisions, modifications to the leading-colour picture are small, suppressed by both colour and kinematics factors. But in pp collisions, multi-parton interactions increase the number of possible subleading connections, counteracting their naive 1/N 2 C suppression. Moreover, those that reduce the overall string lengths are kinematically favoured. The model, which we have implemented in the PYTHIA 8 generator, is capable of reaching agreement not only with the important p ⊥ (n charged ) distribution but also with measured rates (and ratios) of kaons and hyperons, in both ee and pp collisions. Nonetheless, the shape of their p ⊥ spectra remains challenging to explain.

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“…It was noted early that in the dense environment of nuclear collisions, strings might act together coherently to form a stronger "rope" [9,10], which would then hadronize with a larger, effective string tension. This idea has been followed by several authors [11][12][13][14][15][16][17][18][19][20], also for pp collisions. In ref.…”

Section: Rope Hadronizationmentioning

confidence: 99%

Rope Hadronization and Strange Particle Production

Bierlich

2018

EPJ Web Conf.

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Abstract. Rope Hadronization is a model extending the Lund string hadronization model to describe environments with many overlapping strings, such as high multiplicity pp collisions or AA collisions. Including effects of Rope Hadronization drastically improves description of strange/non-strange hadron ratios as function of event multiplicity in all systems from e + e − to AA. Implementation of Rope Hadronization in the MC event generators Dipsy and Pythia8 is discussed, as well as future prospects for jet studies and studies of small systems.

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On the dynamics of a color rope

Cited by 34 publications

References 18 publications

Effect of single string structure and multiple string interaction on strange particle production in pp collisions at s=7TeV

Effect of single string structure and multiple string interaction on strange particle production in pp collisions at s=7TeV

String formation beyond leading colour

Rope Hadronization and Strange Particle Production

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