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Skrzypek, M.; Jadach, S.; Kusina, A.; Płaczek, W.; Sławińska, M.; Gituliar, O.

doi:10.5506/aphyspolb.42.2433

Cited by 19 publications

(22 citation statements)

References 23 publications

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“…This can be easily included in the MC. (ii) If we are aiming in a fully NLO MC the ladder parts have to be upgraded to the NLO level, and this work is already well advanced [14][15][16].…”

Section: Discussionmentioning

confidence: 99%

“…The rapidity boundary Ξ between the F and B parts is kept as a free parameter as long as possible, to be adjusted later on. In particular Ξ = 0 is perfectly legal and may serve as the first choice, before something better is found 14 . Variables z Fi and z B j could be defined similarly as in the single hemisphere case, provided we perform kinematical mappings asymmetrically, first in one hemisphere and then in the other one.…”

Section: B Two Ladder Lo Casementioning

confidence: 99%

“…Instead, we define the dilatation parameters in k i = λk i in a more sophisticated way, for both 13 The reader should keep in mind that the above is for the "primordial" quark and antiquark initial beams, and their distributions in hadron will be added in the MC program. 14 In practice the choice of Ξ may be quite complicated, for instance it can be correlated with the rapidity position of the EW boson. In the NLO corrections calculation, for a single gluon, Ξ = 0 should be set.…”

Section: B Two Ladder Lo Casementioning

confidence: 99%

“…The next step in the project, that is the upgrade of the ladder part to the NLO level, will be treated in a separate publication [13], although the general method was already outlined in refs. [14][15][16]. Many technical details needed for the NLO ladder are provided in ref.…”

Section: Introductionmentioning

confidence: 99%

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Inclusion of the QCD next-to-leading order corrections in the quark-gluon Monte Carlo shower

et al. 2013

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Methodology of including QCD NLO corrections in the quark-gluon Monte Carlo shower is outlined. The work concentrates on two issues: (i) constructing leading order (LO) parton shower Monte Carlo from scratch, such that it rigorously extends collinear factorization into the exclusive (fully unintegrated) one which we call the Monte Carlo factorization scheme; (ii) introducing next-to-leading-order (NLO) corrections to the hard process in this new environment. The presented solution is designed to be extended to the full NLO level Monte Carlo, including NLO corrections not only in the hard process but in the whole shower. The issue of the difference between the factorization scheme implemented in the Monte Carlo (MC) solution and the standard MS scheme is addressed. The principal MC implementation is designed for the electroweak boson production process at the LHC, but in order to discuss universality -process independence, the deep inelastic lepton-hadron scaterring is also brought into the MC framework.

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“…This can be easily included in the MC. (ii) If we are aiming in a fully NLO MC the ladder parts have to be upgraded to the NLO level, and this work is already well advanced [14][15][16].…”

Section: Discussionmentioning

confidence: 99%

Section: B Two Ladder Lo Casementioning

confidence: 99%

Section: B Two Ladder Lo Casementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Inclusion of the QCD next-to-leading order corrections in the quark-gluon Monte Carlo shower

et al. 2013

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“…Methodology of the KrkNLO for the DY process was primarily defined in Ustroń 2011 [27], but without numerical tests. The first numerical validation of KrkNLO on top of Double-CMC PS was demonstrated in Ref.…”

Section: The Krknlo Methodsmentioning

confidence: 99%

NLO Corrections to Hard Process in Parton Shower MC --- {\sf KrkNLO} Method

Jadach¹,

Płaczek²,

Sapeta³

et al. 2015

Acta Phys. Pol. B

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A new method of combining an NLO-corrected hard process with an LO parton shower Monte Carlo, nicknamed KrkNLO, was proposed recently. It is simpler than well-established two other methods: MC@NLO and POWHEG. In this contribution, we present some results of extensive numerical tests of the new method for single Z-boson production at hadron colliders and numerical comparisons with two other methods as well as with NNLO calculations.

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Dissecting the collinear structure of quark splitting at NNLL

Dasgupta

El-Menoufi

2021

J. High Energ. Phys.

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We explore the collinear limit of final-state quark splittings at order $$ {\alpha}_s^2 $$ α s 2 . While at general NLL level, this limit is described simply by a product of leading-order 1 → 2 DGLAP splitting functions, at the NNLL level we need to consider 1 → 3 splitting functions. Here, by performing suitable integrals of the triple-collinear splitting functions, we demonstrate how one may extract $$ {\mathrm{\mathcal{B}}}_2^q(z) $$ ℬ 2 q z , a differential version of the coefficient $$ {\mathrm{\mathcal{B}}}_2^q $$ ℬ 2 q that enters the quark form factor at NNLL and governs the intensity of collinear radiation from a quark. The variable z corresponds to the quark energy fraction after an initial 1 → 2 splitting, and our results yield effective higher-order splitting functions, which may be considered as a step towards the construction of NNLL parton showers. Further, while in the limit z → 1 we recover the standard soft limit results involving the CMW coupling with scale kt, the z dependence we obtain also motivates the extension of the notion of a physical coupling beyond the soft limit.

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Untitled

Cited by 19 publications

References 23 publications

Inclusion of the QCD next-to-leading order corrections in the quark-gluon Monte Carlo shower

Inclusion of the QCD next-to-leading order corrections in the quark-gluon Monte Carlo shower

NLO Corrections to Hard Process in Parton Shower MC --- {\sf KrkNLO} Method

Dissecting the collinear structure of quark splitting at NNLL

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