Transverse momentum correlations of quarks in recursive jet models

Artru, X.; Belghobsi, Z.; Redouane-Salah, E.

doi:10.1103/physrevd.94.034034

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…h /Z)(22)where a q (k 2 T ) = a is taken flavour-and k 2 T -independent.B. The classical string + 3 P0 mechanismOne assumes that the string breaking, in which a q r qr pair is created (r is the rank of the splitting), occurs via 2 Such correlations are present in the standard multiperipheral model, where k T = (1 − Z) k T[17].…”

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confidence: 99%

Recursive model for the fragmentation of polarized quarks

et al. 2018

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We present a model for Monte Carlo simulation of the fragmentation of a polarized quark. The model is based on string dynamics and the 3 P0 mechanism of quark pair creation at string breaking. The fragmentation is treated as a recursive process, where the splitting function of the subprocess q → h+q depends on the spin density matrix of the quark q. The 3 P0 mechanism is parametrized by a complex mass parameter µ, the imaginary part of which is responsible for single spin asymmetries. The model has been implemented in a Monte Carlo program to simulate jets made of pseudoscalar mesons. Results for single hadron and hadron pair transverse-spin asymmetries are found to be in agreement with experimental data from SIDIS and e + e − annihilation. The model predictions on the jet-handedness are also discussed.

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confidence: 99%

Recursive model for the fragmentation of polarized quarks

et al. 2018

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“…It makes it easier to take into account the dynamical correlations in the decay chain between the quarks transverse momenta k T and k T as suggested in Ref. [9].…”

Section: The Recursive Algorithmmentioning

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Recursive Monte Carlo code for transversely polarized quark jet

Kerbizi¹,

Salah²,

Artru³

et al. 2017

Preprint

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We propose a Monte Carlo code for the simulation of the fragmentation process of polarized quarks into pseudoscalar mesons. Such process is generated recursively once the flavour, the energy and the spin density matrix of the initial quark are specified, performing a cascade of splittings of the type q → h + q , where q, q indicate quarks and h the hadron with flavour content q q . Each splitting is generated using a splitting distribution which has been calculated in a string fragmentation framework including, for the first time, the 3 P0 mechanism. This mechanism involves a "complex mass" parameter responsible for transverse spin effects, such as the Collins effect. Results for single hadron and hadron pair analyzing power are found to be in agreement with experimental results from SIDIS and e + e − annihilation.

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Simplified recursive P30 model for the fragmentation of polarized quarks

et al. 2019

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We revisit our recursive model for the fragmentation of polarized quarks based on the string+ 3 P0 mechanism of qq pair creation. We make a different choice for one input function of the model that simplifies the implementation in a Monte Carlo program. No new parameters are introduced, and the relevant results are the same apart from the suppression of the spin-independent correlations between successive quarks. In addition, the present version is more suitable for an interface with external event generators. The theoretical aspects and the simulation results obtained with a stand alone program are discussed in detail and compared with those of the previous version of the model.

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Transverse momentum correlations of quarks in recursive jet models

Cited by 3 publications

References 17 publications

Recursive model for the fragmentation of polarized quarks

Recursive model for the fragmentation of polarized quarks

Recursive Monte Carlo code for transversely polarized quark jet

Simplified recursive P30 model for the fragmentation of polarized quarks

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