RECORD
Heavy-flavor hadro-production with heavy-quark masses renormalized in the ${\overline{\rm MS}}$, MSR and on-shell schemes
High Energy Physics - Phenomenology · Submitted 16 Sep 2020
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Our results are applied to extract the top-quark mass using measurements of the total and differential $t\bar{t}$ production cross-sections and to investigate constraints on parton distribution functions, especially on the gluon distribution at low $x$ values, from available LHC data on heavy-flavor hadro-production.
The compiled record
The paper's own sentences, arranged. 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.
Open the compiled record
The abstract, sentence by sentence
We present predictions for heavy-quark production at the Large Hadron Collider making use of the ${\overline{\rm MS}}$ and MSR renormalization schemes for the heavy-quark mass as alternatives to the widely used on-shell renormalization scheme. We compute single and double differential distributions including QCD corrections at next-to-leading order and investigate the renormalization and factorization scale dependence as well as the perturbative convergence in these mass renormalization schemes. The implementation is based on publicly available programs, ${\texttt{MCFM}}$ and ${\texttt{xFitter}}$, extending their capabilities. Our results are applied to extract the top-quark mass using measurements of the total and differential $t\bar{t}$ production cross-sections and to investigate constraints on parton distribution functions, especially on the gluon distribution at low $x$ values, from available LHC data on heavy-flavor hadro-production.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present predictions for heavy-quark production at the Large Hadron Collider making use of the ${\overline{\rm MS}}$ and MSR renormalization schemes for the heavy-quark mass as alternatives to the widely used on-shell renormalization scheme. | contribution 1.00 | 0.89 | 0.16 | asserted 0.99 |
| s1 | We compute single and double differential distributions including QCD corrections at next-to-leading order and investigate the renormalization and factorization scale dependence as well as the perturbative convergence in these mass renormalization schemes. | method 0.53 | 0.96 | 0.08 | asserted 1.00 |
| s2 | The implementation is based on publicly available programs, ${\texttt{MCFM}}$ and ${\texttt{xFitter}}$, extending their capabilities. | method 1.00 | 0.76 | 0.02 | asserted 1.00 |
| s3 | Our results are applied to extract the top-quark mass using measurements of the total and differential $t\bar{t}$ production cross-sections and to investigate constraints on parton distribution functions, especially on the gluon distribution at low $x$ values, from available LHC data on heavy-flavor hadro-production. | contribution 0.69 | 0.94 | 0.33 | asserted 1.00 |
What was examined, and what was not
- arXiv listing abstract v2
- full text
- figures and tables
- references and citing sentences
- relations to other papers
- P abstract
- S sections
- T body sentences
- C citations
- R cross-paper relations
The paper
Original abstract
We present predictions for heavy-quark production at the Large Hadron Collider making use of the ${\overline{\rm MS}}$ and MSR renormalization schemes for the heavy-quark mass as alternatives to the widely used on-shell renormalization scheme. We compute single and double differential distributions including QCD corrections at next-to-leading order and investigate the renormalization and factorization scale dependence as well as the perturbative convergence in these mass renormalization schemes. The implementation is based on publicly available programs, ${\texttt{MCFM}}$ and ${\texttt{xFitter}}$, extending their capabilities. Our results are applied to extract the top-quark mass using measurements of the total and differential $t\bar{t}$ production cross-sections and to investigate constraints on parton distribution functions, especially on the gluon distribution at low $x$ values, from available LHC data on heavy-flavor hadro-production.
Human review
References
How the literature uses it
14 arXiv papers cite this in 25 sentences
Papers citing it · 18 sentences without a confident label
Builds on it 1 paper
-
Our predictions [ref] are the first ones for $tt̅j+X$ ever published in this scheme, after first esults on MSR cross-sections for $tt̅$ hadroproduction that we presented in Ref. [ref] .
Top-quark mass extraction from $t\bar{t}j +X$ events at the LHC: theory predictions · Linearity of $ℛ$ with the top-quark mass in different renormalization schemes · 0.80
Compares with it 1 paper
-
Specifically, with the $D^0$ example in this work, the central values for the total cross sections increase by factors of 1.5-1.6 with respect to [ref] .
A novel phenomenological approach to total charm cross-section measurements at the LHC · Conclusions and Outlook · 1.00
Cites it as support 1 paper
-
Settings for PDF factorization scale $μ_f$ different from $μ_r$ have been explored in Refs [ref] , corroborating these findings.
Investigation of the scale dependence in the MSR and $\overline{\textrm{MS}}$ top quark mass schemes for the $\mathrm{t}\overline{\mathrm{t}}$ invariant mass differential cross section using LHC data · First investigation of the $R$ scale dependence · 1.00
Cites it as background 4 papers
-
In recent years, several groups outside the experimental collaborations have performed determinations of $m_t$ from top production cross-sections, differing in terms of experimental datasets, higher orders in the perturbative QCD expansion, and methodologies [ref] .
A Determination of the Top Mass from a Global PDF Analysis · Introduction · 0.92
-
NLO studies based on different schemes for the renormalisation of the bottom-quark mass are presented in Ref. [ref] .
Bottom-quark production at hadron colliders: fully differential predictions in NNLO QCD · Introduction · 0.95
-
Next-to-leading order (NLO) corrections in QCD are known since a long time [ref] , while more recently uncertainties related to the renormalization of the bottom-quark mass have been addressed [ref] .
B-hadron production at the LHC from bottom-quark pair production at NNLO+PS · Introduction · 0.94
What it cites · 90 sentences without a confident label
Contests 2 papers
-
Furthermore, in Table 3 we do not observe any noticeably larger theoretical uncertainty when fitting the running mass instead of the pole mass, contrary to what was reported in Refs. [ref] .
Extracting the top-quark running mass using $t\bar{t}$+1-jet events produced at the Large Hadron Collider · Extraction of [t] and [t] + $α_S(M_Z)$ from differential $tt̅$ cross-sections at NLO · contest 0.71
-
Furthermore, in Table 3 we do not observe any noticeably larger theoretical uncertainty when fitting the running mass instead of the pole mass, contrary to what was reported in Refs. [ref] .
Measurement of the top-quark mass in $t\bar{t}+1$-jet events collected with the ATLAS detector in $pp$ collisions at $\sqrt{s}=8$ TeV · Extraction of [t] and [t] + $α_S(M_Z)$ from differential $tt̅$ cross-sections at NLO · contest 0.71
Builds on 2 papers
-
[ref] and the total cross-sections in Table 1 of Ref. [ref] ).
Top-quark pair hadroproduction at NNLO: differential predictions with the MSbar mass · Predictions for differential cross-sections · 0.87
-
[ref] and the total cross-sections in Table 1 of Ref. [ref] ).
Differential distributions for top-quark hadro-production with a running mass · Predictions for differential cross-sections · 0.87
Uses the method or tool of 16 papers
-
The modified program [ref] is capable of converting the NLO calculations using a pole mass into those with the heavy-quark mass renormalized in the mass scheme, in case of single-differential distributions in $p_T$ of the heavy quark, $y$ of the heavy quark and invariant mass $M_QQ̅$ of the heavy-quark pair.
Differential distributions for top-quark hadro-production with a running mass · Predictions for differential cross-sections · 0.98
-
Theoretical predictions for the $tt̅$ data are obtained at NLO in the pole mass scheme using the program [ref] , interfaced with [ref] and [ref] to store the calculated cross-sections bin-by-bin in the format which is suitable for PDF fits with .
aMCfast: automation of fast NLO computations for PDF fits · Extraction of [t] and [t] + $α_S(M_Z)$ from differential $tt̅$ cross-sections at NLO · 0.99
-
Theoretical predictions for the $tt̅$ data are obtained at NLO in the pole mass scheme using the program [ref] , interfaced with [ref] and [ref] to store the calculated cross-sections bin-by-bin in the format which is suitable for PDF fits with .
The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations · Extraction of [t] and [t] + $α_S(M_Z)$ from differential $tt̅$ cross-sections at NLO · 0.99
Uses data or values from 9 papers
-
The HERA combined inclusive DIS data [ref] are included in the fit to provide constraints on the valence and sea quark distributions and to probe the gluon distribution and $α_s$ through scaling violations, while the CMS $tt̅$ data provide direct constraints on the gluon PDF and $α_s$, as well as on the top-quark mass as discussed in Ref. [ref] .
Measurement of $\mathrm{t\bar t}$ normalised multi-differential cross sections in pp collisions at $\sqrt{s} =13$ TeV, and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions · Extraction of [t] and [t] + $α_S(M_Z)$ from differential $tt̅$ cross-sections at NLO · 0.98
-
The HERA combined inclusive DIS data [ref] are included in the fit to provide constraints on the valence and sea quark distributions and to probe the gluon distribution and $α_s$ through scaling violations, while the CMS $tt̅$ data provide direct constraints on the gluon PDF and $α_s$, as well as on the top-quark mass as discussed in Ref. [ref] .
Combination of Measurements of Inclusive Deep Inelastic $e^{\pm}p$ Scattering Cross Sections and QCD Analysis of HERA Data · Extraction of [t] and [t] + $α_S(M_Z)$ from differential $tt̅$ cross-sections at NLO · 0.98
-
Alternatively, we use the charm-, bottom- and top-quark mass central values extracted from the ABMP16 NLO simultaneous fit of PDFs, $α_S(M_Z)$ and heavy-quark masses [ref] : $[c]= 1.18$ GeV, $[b] = 3.88$ GeV and $[t] = 162.1$ GeV.
NLO PDFs from the ABMP16 fit · Predictions for differential cross-sections · 1.00
Compares with 20 papers
-
Therefore, the larger scale uncertainties obtained in this analysis using the or MSR mass schemes, as compared to Ref. [ref] , are explained by the usage of the static scale in the calculations.
Measurement of $\mathrm{t\bar t}$ normalised multi-differential cross sections in pp collisions at $\sqrt{s} =13$ TeV, and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions · Extraction of [t] and [t] + $α_S(M_Z)$ from differential $tt̅$ cross-sections at NLO · 0.86
-
The extrapolated cross-sections and their ratios are compared to NNLO predictions obtained using the NNLO PDF sets ABMP16 [ref] , CT18 [ref] , MMHT2014 [ref] , JR14 [ref] , NNPDF3.1 [ref] and HERAPDF2.0 [ref] .
New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC · NNLO PDF fits with total charm hadro-production cross-section · 0.98
-
The extrapolated cross-sections and their ratios are compared to NNLO predictions obtained using the NNLO PDF sets ABMP16 [ref] , CT18 [ref] , MMHT2014 [ref] , JR14 [ref] , NNPDF3.1 [ref] and HERAPDF2.0 [ref] .
Parton Distribution Functions, $\alpha_s$ and Heavy-Quark Masses for LHC Run II · NNLO PDF fits with total charm hadro-production cross-section · 0.98
Cites as support 2 papers
-
Our findings at NLO support the use of masses renormalized in the scheme for further fits of this kind (see e.g. [ref] ).
NLO PDFs from the ABMP16 fit · Introduction · 1.00
-
Our findings at NLO support the use of masses renormalized in the scheme for further fits of this kind (see e.g. [ref] ).
Improved constraints on parton distributions using LHCb, ALICE and HERA heavy-flavour measurements and implications for the predictions for prompt atmospheric-neutrino fluxes · Introduction · 1.00
Cites as background 42 papers
-
Finally, the MSR scheme [ref] defines a scale-dependent short-distance mass, that interpolates smoothly between a valid mass definition at low scales much below the mass and the mass for scales larger than the mass, using infrared renormalization group flow.
Infrared Renormalization Group Flow for Heavy Quark Masses · Introduction · 0.89
-
On the other hand, differential predictions at NNLO are available for top-quark pair production [ref] , but not yet for the case of charm-quark pair.
Top-quark pair production at the LHC: Fully differential QCD predictions at NNLO · Introduction · 0.91
-
On the other hand, differential predictions at NNLO are available for top-quark pair production [ref] , but not yet for the case of charm-quark pair.
High-precision differential predictions for top-quark pairs at the LHC · Introduction · 0.91
Discussion
Know something about this paper? Leave a comment, or highlight any passage above to comment on it.