Neutralino Reconstruction at the LHC from Decay-frame Kinematics

A.R. Raklev; M.J. White; N. Kersting; S. Kraml; Z. Kang

RECORD

Neutralino Reconstruction at the LHC from Decay-frame Kinematics

Z. Kang, N. Kersting, S. Kraml, A.R. Raklev, M.J. White

High Energy Physics - Phenomenology · Submitted 11 Aug 2009

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

The authors' main claim This work is an extension to the case of two-body decays through on-shell sleptons, with Monte Carlo simulation of LHC collisions demonstrating reconstruction of neutralino masses for the SPS1a benchmark point.

how it is stated · asserted 1.00 read the record →

Comment (0) Read on arXiv ↗

Cite ▾

arXiv ID0908.1550 (version 1)

Pith IDU3754AZF, Pith's permanent record of this paper and its review

CitationA.R. Raklev, M.J. White, N. Kersting, S. Kraml, Z. Kang. "Neutralino Reconstruction at the LHC from Decay-frame Kinematics." arXiv:0908.1550 (2009). https://pith.science/paper/U3754AZF

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, 2,310 input tokens, $0.0001 reported.

What the abstract itself states, as probabilities: claims first 0.07 · states limitation 0.15 · human participants 0.01 · controlled comparison 0.04 · randomized assignment 0.01 · states quantitative result 0.09 · compares with prior results 0.27 · mentions code or data availability 0.03.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; show every role.

Decay-frame Kinematics (DK) has previously been introduced as a technique to reconstruct neutralino masses from their three-body decays to leptons. This work is an extension to the case of two-body decays through on-shell sleptons, with Monte Carlo simulation of LHC collisions demonstrating reconstruction of neutralino masses for the SPS1a benchmark point.

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	Decay-frame Kinematics (DK) has previously been introduced as a technique to reconstruct neutralino masses from their three-body decays to leptons.	background 1.00	0.04	0.05	asserted 1.00
s1	This work is an extension to the case of two-body decays through on-shell sleptons, with Monte Carlo simulation of LHC collisions demonstrating reconstruction of neutralino masses for the SPS1a benchmark point.	contribution 0.98	0.94	0.60	asserted 1.00

What kind of paper the classifier reports this is: simulation study 0.60 · evidence from simulation or computation 1.00.

What was examined, and what was not

sources read

arXiv listing abstract v1

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

Decay-frame Kinematics (DK) has previously been introduced as a technique to reconstruct neutralino masses from their three-body decays to leptons. This work is an extension to the case of two-body decays through on-shell sleptons, with Monte Carlo simulation of LHC collisions demonstrating reconstruction of neutralino masses for the SPS1a benchmark point.

Human review

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

References

Forward citations

Cited by 3 Pith papers

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

Dark Matter Particle Spectroscopy at the LHC: Generalizing MT2 to Asymmetric Event Topologies
hep-ph 2009-11 accept novelty 6.0 of 10

Generalizing the MT2 variable to asymmetric children masses yields two independent methods, a ridge in the endpoint surface and upstream-momentum invariance, that together determine the parent and both children masses...
Transverse masses and kinematic constraints: from the boundary to the crease
hep-ph 2009-08 accept novelty 6.0 of 10

The kinematic variable mT2 and its relatives are equivalent to the boundary of the parent-and-daughter mass region consistent with an event, which yields new variables for unequal-mass parent decays and inverse variab...
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

9 arXiv papers cite this in 13 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 · 8 sentences without a confident label

Uses its method or tool 2 papers

Note that in this procedure the ambiguity in identifying which lepton comes from the slepton decay can be removed by explicitly reconstructing the $χ̃_2^0$ rest frame via the technology of [ref] and seeing which lepton is parallel/antiparallel to the LSP.

Mass Estimation without using MET in early LHC data · Introduction · 0.92
The neutralino decays give rise to kinematic endpoints in the dilepton invariant mass distribution that will be recognisable as arising from three body decays (by virtue of shape or possibly by using a wedgebox technique as in [ref] ).

MSSM dark matter measurements at the LHC without squarks and sleptons · Conventional input measurements · 0.97

Cites it as background 3 papers

The difficulty in measuring the mass of the dark matter particle at a hadron collider like the Tevatron or the LHC is widely appreciated and has generated a lot of recent activity [ref] .

Dark Matter Particle Spectroscopy at the LHC: Generalizing MT2 to Asymmetric Event Topologies · Probing the dark matter sector at colliders · 0.87
This approach naturally evolved into the so-called “polynomial method” [ref] , where one attempts to solve explicitly for the momenta of the invisible particles in a given event, possibly using additional information from prior measurements of kinematic invariant mass endpoints.

Identifying Phase Space Boundaries with Voronoi Tessellations · Introduction · 0.86
In the other extreme, for sufficiently long decay chains, there is sufficient kinematic information available in the events for the determination of the complete spectrum by algebraic methods [ref] .

Applying Machine Learning Techniques To Intermediate-Length Cascade Decays · Introduction · 0.84

Discussion

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