A comment on "Amplification of endpoint structure for new particle mass measurement at the LHC"

A. J. Barr; C. G. Lester; C. Gwenlan; C. J. S. Young

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A comment on "Amplification of endpoint structure for new particle mass measurement at the LHC"

A. J. Barr, C. Gwenlan, C. G. Lester, C. J. S. Young

High Energy Physics - Experiment · Submitted 13 Jun 2010

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

The authors' main claim We show that when Standard Model backgrounds are included in simulations, the sensitivity of the $m_{CT2}$ variable to the SUSY particle masses is more seriously impacted for $m_{CT2}$ than for other previously proposed variables.

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arXiv ID1006.2568 (version 2)

Pith IDOA2JKOQT, Pith's permanent record of this paper and its review

CitationA. J. Barr, C. G. Lester, C. Gwenlan, C. J. S. Young. "A comment on "Amplification of endpoint structure for new particle mass measurement at the LHC"." arXiv:1006.2568 (2010). https://pith.science/paper/OA2JKOQT

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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.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,804 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.49 · human participants 0.01 · controlled comparison 0.27 · randomized assignment 0.01 · states quantitative result 0.05 · compares with prior results 0.91 · 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 present a comment on the kinematic variable $m_{CT2}$ recently proposed in "Amplification of endpoint structure for new particle mass measurement at the LHC". The variable is designed to be applied to models such as R-parity conserving Supersymmetry (SUSY) when there is pair production of new heavy particles each of which decays to a single massless visible and a massive invisible component. It was proposed in "Amplification of endpoint structure for new particle mass measurement at the LHC" that a measurement of the peak of the $m_{CT2}$ distribution could be used to precisely constrain the masses of the SUSY particles. We show that when Standard Model backgrounds are included in simulations, the sensitivity of the $m_{CT2}$ variable to the SUSY particle masses is more seriously impacted for $m_{CT2}$ than for other previously proposed variables.

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 present a comment on the kinematic variable $m_{CT2}$ recently proposed in "Amplification of endpoint structure for new particle mass measurement at the LHC".	contribution 0.89	0.78	0.04	asserted 0.88
s1	The variable is designed to be applied to models such as R-parity conserving Supersymmetry (SUSY) when there is pair production of new heavy particles each of which decays to a single massless visible and a massive invisible component.	background 0.99	0.06	0.03	asserted 1.00
s2	It was proposed in "Amplification of endpoint structure for new particle mass measurement at the LHC" that a measurement of the peak of the $m_{CT2}$ distribution could be used to precisely constrain the masses of the SUSY particles.	background 1.00	0.04	0.05	hedged possibility 0.87
s3	We show that when Standard Model backgrounds are included in simulations, the sensitivity of the $m_{CT2}$ variable to the SUSY particle masses is more seriously impacted for $m_{CT2}$ than for other previously proposed variables.	result 1.00	0.93	0.91	asserted 1.00

What kind of paper the classifier reports this is: position or commentary 1.00 · evidence from simulation or computation 0.99.

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 present a comment on the kinematic variable $m_{CT2}$ recently proposed in "Amplification of endpoint structure for new particle mass measurement at the LHC". The variable is designed to be applied to models such as R-parity conserving Supersymmetry (SUSY) when there is pair production of new heavy particles each of which decays to a single massless visible and a massive invisible component. It was proposed in "Amplification of endpoint structure for new particle mass measurement at the LHC" that a measurement of the peak of the $m_{CT2}$ distribution could be used to precisely constrain the masses of the SUSY particles. We show that when Standard Model backgrounds are included in simulations, the sensitivity of the $m_{CT2}$ variable to the SUSY particle masses is more seriously impacted for $m_{CT2}$ than for other previously proposed variables.

Human review

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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

Guide to transverse projections and mass-constraining variables
hep-ph 2011-05 accept novelty 6.0 of 10

Many hadron-collider mass variables are special cases of a single mass-bound construction, distinguished only by which transverse projection and which order of operations they use.
A Review of the Mass Measurement Techniques proposed for the Large Hadron Collider
hep-ph 2010-04 accept novelty 1.0 of 10

The paper is a structured review of kinematic mass measurement techniques for LHC events with invisible particles, organized by decay topology and paired with their assumptions and known limitations.

How the literature uses it

4 arXiv papers cite this in 6 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 · 5 sentences without a confident label

Cites it as background 1 paper

A tremendous amount of effort has been put-in into such a research program, especially at the CERN Large Hadron Collider (LHC), see, for example [ref] .

Using M_T2 to Distinguish Dark Matter Stabilization Symmetries · Introduction · 0.97

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