Universal parametrization of jet production based on parton and fragment rapidities

Abstract

As the signature manifestation of QCD in high energy nuclear collisions jet production provides essential tests of that theory. But event-wise jet reconstruction can be complex and susceptible to measurement bias. And QCD theory in the form of Monte Carlo models of elementary collisions can also be complex and difficult to test. It may be beneficial to construct a simple static model of jet production in p-p collisions to facilitate data comparisons and model tests. QCD is a logarithmic theory featuring variations with energy scale of the form $\log (s/s_0)$. Jet-related data such as parton fragmentation functions plotted on logarithmic rapidities exhibit self-similar scaling behavior which admits simple and accurate parametrization with only a few parameters. In this study we extend that method to construct a parametrization of jet (scattered parton) momentum spectra based on certain measured logarithmic jet production trends. The parametrization is established with SppS jet data and then extrapolated for comparison with Tevatron and LHC jet data. In addition, the jet production model from the present study is combined with a parametrization of p-p fragmentation functions to predict the minimum-bias jet fragment contribution to hadron $p_t$ spectra. The prediction is compared with published p-p spectrum data to test the self-consistency of the model.

arXiv comment10 pages, 10 figures

References in corpus (19)

• Herwig++ Physics and Manual
• A Multi-Phase Transport model for nuclear collisions at RHIC
• Measurement of inelastic, single- and double-diffraction cross sections in proton-proton collisions at the LHC with ALICE
• Minijet deformation and charge-independent angular correlations on momentum subspace $(\eta ,\varphi )$ in Au-Au collisions at $\sqrt{s_{NN}}$ = 130 GeV
• Measurement of inclusive jet and dijet production in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector
• Measurement of the Inclusive Jet Cross Section at the Fermilab Tevatron p-pbar Collider Using a Cone-Based Jet Algorithm
• Multiplicity dependence of the average transverse momentum in pp, p-Pb, and Pb-Pb collisions at the LHC
• Measurement of the Inclusive Jet Cross Section in $\bar{p}p$ collisions at $\sqrt{s}=1.8$ TeV
• High-p_T Jets in pbarp Collisions at sqrt{s} = 630 and 1800 GeV
• The multiplicity dependence of inclusive $p_t$ spectra from p-p collisions at $\sqrt{s}$ = 200 GeV
• Anomalous centrality evolution of two-particle angular correlations from Au-Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 62 and 200 GeV
• Properties of jets measured from tracks in proton-proton collisions at center-of-mass energy sqrt(s) = 7 TeV with the ATLAS detector
• Evolution of minimum-bias parton fragmentation in nuclear collisions
• Correlations from p-p collisions at $\sqrt{s}=200$ GeV
• The energy dependence of $p_t$ angular correlations inferred from mean-$p_t$ fluctuation scale dependence in heavy ion collisions at the SPS and RHIC
• Universal Centrality and Collision Energy Trends for $v_2$ Measurements From 2D Angular Correlations
• Extrapolating parton fragmentation to low $Q^2$ in $e^{+}$-$e^{-}$ collisions
• Parton fragment yields derived from minimum-bias jet angular correlations
• The Underlying Event and the Total Cross Section from Tevatron to the LHC

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• Ensemble mean ${\mathbf{p}}_{\mathbf{t}}$ vs charged-hadron multiplicities in high energy nuclear collisions
• Charge-multiplicity and collision-energy dependence of $p_t$ spectra from $p$-$p$ collisions at the relativistic heavy-ion collider and large hadron collider
• Optimal modeling of 1D azimuth correlations in the context of Bayesian inference
• Comparing the PYTHIA Monte Carlo to a two-component (soft + hard) model of hadron production in high-energy p-p collisions
• Collectivity and manifestations of minimum-bias jets in high-energy nuclear collisions
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