Improving top quark induced charge asymmetries at the LHC using ttbar transverse momentum

Ezequiel Alvarez

RECORD

Improving top quark induced charge asymmetries at the LHC using ttbar transverse momentum

Ezequiel Alvarez

High Energy Physics - Phenomenology · Submitted 29 Feb 2012

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We find that including the $t\bar t$ transverse momentum in the analysis of the expected 2012 LHC data provides a considerable enhancement in the significance of the asymmetry.

how it is stated · asserted 1.00 read the record →

Comment (0) Read on arXiv ↗

Cite ▾

Claim paper

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

Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,085 input tokens, $0.0001 reported.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.08 · human participants 0.01 · controlled comparison 0.19 · randomized assignment 0.01 · states quantitative result 0.11 · compares with prior results 0.62 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; show every role.

We study how the significance of top quark induced charge asymmetries at the LHC may be enhanced exploiting the $t\bar t$ total transverse momentum to enrich the fraction of quark fusion events in the sample. We combine this variable with previous variables related to the boost and the invariant mass of the $t\bar t$ pair to find an optimum cut which maximizes the significance of the asymmetry when systematic and statistic errors are taken into account. We find that including the $t\bar t$ transverse momentum in the analysis of the expected 2012 LHC data provides a considerable enhancement in the significance of the asymmetry.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We study how the significance of top quark induced charge asymmetries at the LHC may be enhanced exploiting the $t\bar t$ total transverse momentum to enrich the fraction of quark fusion events in the sample.	contribution 0.95	0.69	0.11	hedged possibility 1.00
s1	We combine this variable with previous variables related to the boost and the invariant mass of the $t\bar t$ pair to find an optimum cut which maximizes the significance of the asymmetry when systematic and statistic errors are taken into account.	method 0.99	0.94	0.08	asserted 0.99
s2	We find that including the $t\bar t$ transverse momentum in the analysis of the expected 2012 LHC data provides a considerable enhancement in the significance of the asymmetry.	result 1.00	0.95	0.89	asserted 1.00

What kind of paper the classifier reports this is: method or tool 0.68 · evidence from simulation or computation 0.88.

What was examined, and what was not

sources read

arXiv listing abstract v2

not examined

full text
figures and tables
references and citing sentences
relations to other papers

levels run

P abstract

not run

S sections
T body sentences
C citations
R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

We study how the significance of top quark induced charge asymmetries at the LHC may be enhanced exploiting the $t\bar t$ total transverse momentum to enrich the fraction of quark fusion events in the sample. We combine this variable with previous variables related to the boost and the invariant mass of the $t\bar t$ pair to find an optimum cut which maximizes the significance of the asymmetry when systematic and statistic errors are taken into account. We find that including the $t\bar t$ transverse momentum in the analysis of the expected 2012 LHC data provides a considerable enhancement in the significance of the asymmetry.

Human review

How Pith checks papers → · Full audit of this paper →

References

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Top quark pair production at small transverse momentum in hadronic collisions
hep-ph 2013-07 accept novelty 7.0 of 10

Soft-collinear effective theory plus heavy-quark effective theory yields a factorized, NNLL-resummed prediction for the top-pair transverse momentum spectrum, validated against exact fixed-order results and collider data.
Top quark and leptonic charge asymmetries for the Tevatron and LHC
hep-ph 2012-05 accept novelty 5.0 of 10

Standard Model predictions at NLO QCD plus electroweak order are given for top-quark and leptonic charge asymmetries at the Tevatron and LHC, including new LHC dilepton asymmetries.

How the literature uses it

5 arXiv papers cite this in 9 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 6 sentences without a confident label

Compares with it 1 paper

The enhancement in the sensitivity to NP signals in the $m_tt̅$-spectrum found in this work using the $p_T(tt̅)$ and $β$ variables is in consonance with the improvement in the induced $tt̅$ asymmetries found in Ref. [ref] using the same variables.

Enhancing the sensitivity to New Physics in the top-antitop invariant mass distribution · Introduction · 0.89

Cites it as background 2 papers

As it is well known, in the SM one expects $A_C$ to grow with low $p_T$ and vice versa [ref] .

A charged Z' to conciliate the apparent disagreement between top-antitop Tevatron forward-backward asymmetry and LHC charge asymmetry · Distinctive features of the model · 0.88
The search for kinematic cuts that increase in a given $tt̅$ sample has been studied in the last years [ref] mainly to increase the sensitivity in the top charge-asymmetry at the LHC and very few in the $m_tt̅$-spectrum [ref] .

Top-antitop resonance searches beyond 1 TeV · Introduction · 0.93

What it cites · 23 sentences without a confident label

Builds on 1 paper

In complement to the studies in Ref. [ref] , our analysis is performed on a mathematical frame which relates the significance of the asymmetry to the capability of this new variable to increase the quark fusion content of the sample.

Charge asymmetries of top quarks at hadron colliders revisited · Introduction · 0.83

Uses the method or tool of 4 papers

We have chosen as an algorithm to attempt to recognize which proton put the quark, the same as Refs. [ref] .

One-side Forward-backward Asymmetry in Top Quark Pair Production at CERN Large Hadron Collider · Significance comparison using $tt̅$ transverse momentum · 1.00
We have chosen as an algorithm to attempt to recognize which proton put the quark, the same as Refs. [ref] .

Boosting the t tbar charge asymmetry · Significance comparison using $tt̅$ transverse momentum · 1.00
In order to see numerically the effect of the initial state radiation on the transverse momentum of the $tt̅$ pairs as a function of the initial partons, we have simulated $tt̅$ production through MadGraph/MadEvent [ref] and passed them through Pythia.

MadGraph/MadEvent v4: The New Web Generation · Improving the quark fusion fraction through $tt̅$ transverse momentum · 1.00

Compares with 1 paper

In order to make a consistent comparison with previous works [ref] , we have gradually selected the sample by varying the parameter $β$, and placed a different cut in $p_T(tt̅)$ for each case.

Boosting the t tbar charge asymmetry · Significance comparison using $tt̅$ transverse momentum · 0.93

Cites as background 10 papers

In some of these works they also use polarization, spin correlation and relative rapidity of the tops [ref] and the $tt̅$ transverse momentum, $p_T(tt̅)$ [ref] .

Improving the Top Quark Forward-Backward Asymmetry Measurement at the LHC · Introduction · 0.93
In some of these works they also use polarization, spin correlation and relative rapidity of the tops [ref] and the $tt̅$ transverse momentum, $p_T(tt̅)$ [ref] .

A Polarized View of the Top Asymmetry · Introduction · 0.93
In some of these works they also use polarization, spin correlation and relative rapidity of the tops [ref] and the $tt̅$ transverse momentum, $p_T(tt̅)$ [ref] .

Charge asymmetries of top quarks at hadron colliders revisited · Introduction · 0.93

Discussion

Know something about this paper? Leave a comment, or highlight any passage above to comment on it.