REVIEW
Tevatron Run-1 Z Boson Data and Collins-Soper-Sterman Resummation Formalism
High Energy Physics - Phenomenology · Submitted 11 Dec 2002 · 36 references
Pith's verdict: This is the paper that gave us the BLNY fit; the central claim holds up, but the 'Gaussian' framing and the poor chi2/dof deserve a referee's attention.
T0 · AI review
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Referee report
The paper
The paper claims
Including Tevatron Run-1 Z-boson data in a global fit favors a Gaussian form for the nonperturbative function in Collins-Soper-Sterman resummation.
The reading
Extended reading notes
Core claim
The paper's central assertion is that 'the inclusion of the Tevatron Run-1 Z-boson data strongly favors a Gaussian form of the CSS nonperturbative function, when combined with the other low energy Drell-Yan data in a global fit' (abstract and Section I). If correct, the Gaussian form (with or without x-dependence) is the preferred parametrization of the nonperturbative function for W/Z pT predictions at hadron colliders.
Load-bearing premise
The load-bearing premise is that the chi-squared comparison between the three functional forms is a valid model-selection criterion, which requires correctly estimated experimental errors and an accurate perturbative calculation. Table I reports chi-squared per degree of freedom of 5.68, 5.64, and 2.65 for the LY-G, DWS-G, and BLNY fits, values far above unity. If the errors are underestimated or the perturbative calculation is incomplete, the ranking of forms by chi-squared is unreliable, and the 'strongly favors' language is not supported.
Original abstract
We examine the effect of the Z-boson transverse momentum distribution measured at the Run-1 of the Tevatron on the nonperturbative function of the Collins-Soper-Sterman (CSS) formalism, which resums large logarithmic terms from multiple soft gluon emission in hadron collisions. The inclusion of the Tevatron Run-1 Z-boson data strongly favors a Gaussian form of the CSS nonperturbative function, when combined with the other low energy Drell-Yan data in a global fit.
The compiled record
The paper's own sentences, arranged, kept beside the review and separate from it. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
The abstract, sentence by sentence
We examine the effect of the Z-boson transverse momentum distribution measured at the Run-1 of the Tevatron on the nonperturbative function of the Collins-Soper-Sterman (CSS) formalism, which resums large logarithmic terms from multiple soft gluon emission in hadron collisions. The inclusion of the Tevatron Run-1 Z-boson data strongly favors a Gaussian form of the CSS nonperturbative function, when combined with the other low energy Drell-Yan data in a global fit.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We examine the effect of the Z-boson transverse momentum distribution measured at the Run-1 of the Tevatron on the nonperturbative function of the Collins-Soper-Sterman (CSS) formalism, which resums large logarithmic terms from multiple soft gluon emission in hadron collisions. | contribution 0.96 | 0.69 | 0.08 | unclear 0.52 |
| s1 | The inclusion of the Tevatron Run-1 Z-boson data strongly favors a Gaussian form of the CSS nonperturbative function, when combined with the other low energy Drell-Yan data in a global fit. | result 0.98 | 0.82 | 0.85 | asserted 0.89 |
What was examined, and what was not
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- P abstract
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References
How later papers used it
115 later papers cite it
1 later paper by other authors is listed below: 1 used its data or values. 2 more papers by the same authors are listed: 1 used its method or tool and 1 used its data or values.
Uses its method or tool 1 of 22 papers with this label · 1 by the same authors
By the same authors
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Used the BLNY parameterization from this paper for the non-perturbative part of the soft-gluon resummation.
Improved Predictions for Higgs Q_T at the Tevatron and the LHC (2009) (same authors) · 0.87 · paraphrased: the licence does not allow quoting
Uses its data or values 2 of 6 papers with this label · 1 by the same authors
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Used g2 = 0.68 GeV^2, determined from a global fit by this paper.
Transverse Momentum and Transverse Momentum Distributions in the MIT Bag Model (2021) · 0.93 · paraphrased: the licence does not allow quoting
By the same authors
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The pseudoexperiments use the pdf [ref] and fix the non-perturbative function to the BLNY global fit values [ref] .
ResBos2 and the CDF W Mass Measurement (2022) (same authors) · Introduction · 0.92
How the literature uses it
105 arXiv papers cite this in 171 sentences
Papers citing it · 94 sentences without a confident label
Contests it 2 papers
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This suggests the following hypothesis: The fits in Refs. [ref] determine $g_K$ and $g_j/H$ in a range of relatively low $b$, say between about 0.5 and $[2]GeV^-1$, but their extrapolation to larger $b$ is wrong.
Understanding the large-distance behavior of transverse-momentum-dependent parton densities and the Collins-Soper evolution kernel · Fits to Drell-Yan data with CSS formalism · contest 0.75
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In particular, the data disfavour current non-perturbative models, such as small-$x$ broadening [ref] .
Accurate QCD predictions for new variables to study dilepton transverse momentum · Introduction · contest 0.74
Uses its method or tool 19 papers
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The theoretical predictions in this work are computed using the ResBos [ref] package at approximate NNLO plus next-to-next-to-leading-logarithm (NNLL) in QCD interactions, in which the canonical scales are used [ref] .
Impact of LHCb 13 TeV $W$ and $Z$ pseudo-data on the Parton Distribution Functions · Updating Error PDFs · 1.00
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In this work, they are computed using the ResBos [ref] package at approximate next-to-next-to-leading order (NNLO) plus next-to-next-to-leading logarithm (NNLL) in QCD interaction, in which the canonical scales are used [ref] .
Factorization of the forward-backward charge asymmetry and measurements of the weak mixing angle and proton structure at hadron colliders · Factorization of $A^h_FB$ · 1.00
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To account for non-perturbative effects that dominate at large impact parameters $b$, we introduce a non-perturbative Sudakov form factor, $S_NP$ [ref] .
Resummed azimuthal decorrelation and transverse momentum imbalance of dijets at the LHC · Azimuthal decorrelation · 0.94
Uses its data or values 6 papers
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The pseudoexperiments use the pdf [ref] and fix the non-perturbative function to the BLNY global fit values [ref] .
ResBos2 and the CDF W Mass Measurement · Introduction · 0.92
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Here we have used $g_2 = 0.68$ GeV$^2$, determined from a global fit [ref] , $ζ_μ= μ^2$, $ζ_Q = Q^2$ as usual, and have set $b_max$, the approximate maximum impact parameter for the perturbative domain, to 0.5 GeV$^-1$, although these calculations are not particularly sensitive to the value of $b_max$.
Transverse Momentum and Transverse Momentum Distributions in the MIT Bag Model · Introduction · 0.93
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Assuming flavor independence, the symmetric role of the PDFs in the DY factorization formula allows for an immediate identification of the C-factor contribution to the TMD PDF in Eq. ([ref]): [equation] The fits of Ref. [ref] found $g_1 = 0.21$ GeV$^2$, $g_2 = 0.68$ GeV$^2$ and $g_3 = -0.6$, using $Q_0 = 1.6$ GeV using data from Refs. [ref] .
TMD Parton Distribution and Fragmentation Functions with QCD Evolution · TMD PDFs · 0.95
Compares with it 11 papers
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These lattice QCD constraints on the CS kernel are therefore not sufficient to establish a clear preference between functional forms for $$; however they do provide a significant preference for the recent fit results from Refs. [ref] in comparison with Ref. [ref] and especially with older BLNY fit results [ref] at large $b_T$.
Determination of the Collins-Soper kernel from Lattice QCD · Introduction · 0.91
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This value is larger than that extracted with the DWS parameterization in Ref. [ref] which gives $g_a^DWS (Q=M_Z) = 1.8$ GeV$^2$, but is smaller than that extracted with the BLNY parameterization [ref] which gives $g_a^BLNY (Q=M_Z, √(s)=7 TeV) = 3.0$ GeV$^2$.
Exploring non-perturbative Sudakov factor via $Z^0$-boson production in $pp$ collisions · Gaussian Fit · 0.98
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By contrast, the Drell-Yan fits in Refs. [ref] give results in terms of the TMD factorization formula in the particular CSS1 form given in Eq. ([ref]).
Connecting Different TMD Factorization Formalisms in QCD · TMD functions from fits with CSS1 · 0.88
Cites it as background 29 papers
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The original CSS formula [ref] , as used in the fits in [ref] , was obtained starting from a TMD factorization formula, using the specific definitions of TMD parton densities that had been given by Collins and Soper (CS) [ref] .
Connecting Different TMD Factorization Formalisms in QCD · Original CSS formalism · 0.83
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In previous work on CSS resummation, the $b_*$-prescription was introduced along with non-perturbative Sudakov factors, which were modeled through various functional forms and obtained by fitting to experimental data [ref] .
QCD resummation of dijet azimuthal decorrelations in pp and pA collisions · Parameterization · 0.99
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Several parameterizations [ref] have been proposed for the non-perturbative Sudakov factor, where the values of the corresponding parameters are extracted from a global analysis to the expermental measurements of SIDIS [ref] and Drell-Yan process [ref] .
Exploring non-perturbative Sudakov factor via $Z^0$-boson production in $pp$ collisions · Introduction · 0.90
Discussion
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