Gluon- and Quark-Jet Multiplicities with NNNLO and NNLL Accuracy

Bolzoni, Paolo; Kniehl, Bernd A.; Kotikov, A. V.

doi:10.1103/physrevlett.109.242002

Cited by 31 publications

(51 citation statements)

References 29 publications

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“…mean multiplicities of quarks and gluons) were analyzed [32]. The results are in good agreement with the experimental data (see contribution [33] by Paolo Bolzoni to this Proceedings).…”

Section: Parton Distributions and The Structure Function Fsupporting

confidence: 72%

Small x behavior of parton distributions. Analytical and «frozen» coupling constants. BFKL corrections

Kotikov¹

2013

Proceedings of XXI International Baldin Seminar on High Energy Physics Problems — PoS(Baldin ISHEPP XXI)

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It is shown that in the leading twist approximation of the Wilson operator product expansion with "frozen" and analytic strong coupling constants, Bessel-inspired behavior of the structure functions F 2 and F cc 2 and also the derivative ∂ ln F 2 /∂ ln(1/x) at small x values, obtained for a flat initial condition in the DGLAP evolution equations, leads to good agreement with the deep inelastic scattering experimental data from HERA.

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“…mean multiplicities of quarks and gluons) were analyzed [32]. The results are in good agreement with the experimental data (see contribution [33] by Paolo Bolzoni to this Proceedings).…”

Section: Parton Distributions and The Structure Function Fsupporting

confidence: 72%

Small x behavior of parton distributions. Analytical and «frozen» coupling constants. BFKL corrections

Kotikov¹

2013

Proceedings of XXI International Baldin Seminar on High Energy Physics Problems — PoS(Baldin ISHEPP XXI)

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“…Moreover, using an analogous approach, good agreement was also found with the corresponding data for jet multiplicites[30] 4. The study of nuclear effects in a deutron can be found in the recent paper[31], which also contains short reviews of preliminary investigations.…”

supporting

confidence: 68%

“…Using a recent progress in the application of double logarithmic approximations (see [15,20] and [30]) to the studies of small x behavior of the structure and fragmentation functions, 5 Note that the result for R AD g (x, µ 2 ) along with its uncertainty is completely determined by both the rescaling model and the analytic form for parton densities at low x values we've used. Therefore, it is clear that the light green band for R AD g (x, µ 2 ) should become broader due to a freedom in using various models.…”

Section: Resultsmentioning

confidence: 99%

EMC effect at small Bjorken x values

2019

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The Bessel-inspired behavior of parton densities at small Bjorken x values is used along with "frozen" and analytic modifications of the strong coupling constant [1] to study the so-called EMC effect. Among other results, this approach allowed predicting small x behavior of the gluon density in nuclei. * e-mail: kotikov@theor.jinr.ru 1 Sometimes, in the analyses of DIS experimental data it is convenient to use an exact solution to DGLAP equations in the Mellin moment space and reconstruct SF F 2 from the moments (see recent paper [7] and references and discussions therein). The studies of nuclear effects in such a type of analyses can be found in [8], though its consideration is beyond the scope of the present study.

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“…The number of jet constituents scales up logarithmically with decreasing energy scale (see e.g. [158,159]), as does the entropy of a jet [160], and both of these quantities are related to the effective dimensionality of the space of QCD jets. We leave a QCD calculation of dim(Q) to future work, noting that the result will depend on the strong coupling constant α s as well as on the relative fraction of quark and gluon jets in the sample.…”

Section: Correlation Dimensionmentioning

confidence: 99%

Exploring the space of jets with CMS open data

et al. 2020

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We explore the metric space of jets using public collider data from the CMS experiment. Starting from 2.3 fb −1 of proton-proton collisions at √ s = 7 TeV collected at the Large Hadron Collider in 2011, we isolate a sample of 1,690,984 central jets with transverse momentum above 375 GeV. To validate the performance of the CMS detector in reconstructing the energy flow of jets, we compare the CMS Open Data to corresponding simulated data samples for a variety of jet kinematic and substructure observables. Even without detector unfolding, we find very good agreement for trackbased observables after using charged hadron subtraction to mitigate the impact of pileup. We perform a range of novel analyses, using the "energy mover's distance" (EMD) to measure the pairwise difference between jet energy flows. The EMD allows us to quantify the impact of detector effects, visualize the metric space of jets, extract correlation dimensions, and identify the most and least typical jet configurations. To facilitate future jet studies with CMS Open Data, we make our datasets and analysis code available, amounting to around two gigabytes of distilled data and one hundred gigabytes of simulation files. CONTENTS

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Gluon- and Quark-Jet Multiplicities with NNNLO and NNLL Accuracy

Cited by 31 publications

References 29 publications

Small x behavior of parton distributions. Analytical and «frozen» coupling constants. BFKL corrections

Small x behavior of parton distributions. Analytical and «frozen» coupling constants. BFKL corrections

EMC effect at small Bjorken x values

Exploring the space of jets with CMS open data

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