{"id":"63f22794-7d9d-45f9-989c-ec7b02d06e4c","arxiv_id":"1306.1567","paper_version":3,"verdict":"CONDITIONAL","confidence":"HIGH","novelty_score":5.0,"correctness_risk":"medium","formal_verification":"none","parameter_count":0,"one_line_summary":"In a nine-parameter MSSM scan, neutralino dark matter consistent with muon g-2 and not yet excluded by LHC electroweak searches sits between 200 and 500 GeV, and the XENON100 bound weakens once a new pion-nucleon sigma term is used.","lead":"A nine-parameter version of the minimal supersymmetric standard model is scanned against the Planck relic density, the 125 GeV Higgs, LHC searches, muon g-2 and XENON100. The surviving neutralino dark matter window is 200 to 500 GeV, and a new pion-nucleon sigma term weakens the XENON100 bound.","discovery_kind":"unclear","skeptic_critique":{"model":"selfhosted/deepseek-v4.1-flash","headline":"The 500 GeV upper edge of the claimed window is driven by the imposed relation m_L1,2 = M1 + 50 GeV, not by data; freeing the slepton masses would let g-2 be satisfied with heavier neutralinos, so the window is a property of the p9MSSM slice rather than a robust MSSM result.","rationale":"The reader's verdict of CONDITIONAL is appropriate and my read does not move it. The reader correctly identifies that the lower edge of the window rests on the authors' own EW-production reimplementation, which is validated against the official CMS limit only to within about 50 GeV (Fig. 2) and applied to a roughly 40,000-point subsample. That is a genuine, acknowledged approximation and it is wide relative to a 200 GeV edge. Two refinements are needed. First, the reader attributes the factor-1.8 LO/NLO cross-section discrepancy to the EW search; in the text that factor is stated for the alpha_T/T2bb validation (Sec. 3.1), while the EW validation is quoted only as a chargino-mass discrepancy below 50 GeV. Second, and more important, the reader does not flag the upper edge. The 500 GeV bound is not a data-driven limit on the neutralino mass in the MSSM; it follows from the imposed relation m_L1,2 = M1 + 50 GeV, which the authors chose to enhance g-2. With that relation, the g-2 constraint on sleptons maps onto m_chi; without it, light sleptons can satisfy g-2 at much larger m_chi. The paper is honest about the tuning in Sec. 4.2, but the abstract states the window as a finding without the caveat. This is a scoping issue rather than an internal inconsistency: within the p9MSSM slice the statement is correct, and the paper repeatedly labels the model p9MSSM. The indirect-detection sections are weaker still, as the reader notes, but they are not load-bearing for the central claim. Overall the work is competent and the central claim survives as a statement about this nine-parameter slice; the concrete test above would establish whether the upper edge is a physical bound or a prior artifact, which is the one check that would most sharpen the abstract's wording.","tokens_in":41530,"tokens_out":4626,"duration_ms":50542,"concrete_test":"Re-run the scan with m_L1,2 decoupled from M1, for example free m_L1,2 in 100-1000 GeV or fixed at a value independent of M1, and re-derive the 2-sigma delta(g-2) region in the (m_chi, ...) plane with all other constraints unchanged. If the upper edge moves well above 500 GeV (say, above 700 GeV), the window is parametrization-driven and the abstract claim should be restated as a lower bound within p9MSSM. Separately, re-evaluate the EW likelihood on the full sample with NLO cross sections to check whether the 200 GeV edge shifts by more than the roughly 50 GeV validation gap.","verdict_should_be":"UNCHANGED","load_bearing_attack":"The abstract's window [abstract:s4] has two edges, and the upper one is the more fragile. In Sec. 2 and Table 1 the authors fix m_L1,2 = m_eR = m_muR = M1 + 50 GeV, explicitly 'in order to enhance (g-2)_mu.' This ties the smuon and muon-sneutrino masses to the bino mass M1. In the bino branch (mu > M2), m_chi is approximately M1, so a g-2 upper bound on the smuon mass becomes an upper bound on m_chi; in the higgsino branch the same relation keeps sleptons near mu/2. Either way the 500 GeV edge is a consequence of the prior, not of the g-2 measurement alone. Relax the relation, as the p13MSSM of Ref. [15] does, and light sleptons can supply delta(g-2) with m_chi well above 500 GeV, so the upper edge dissolves and the claim reduces to m_chi greater than about 200 GeV. The paper states the tuning plainly in Sec. 4.2, but the abstract presents the window without that caveat. The reader's lower-edge concern is real (Fig. 2 validation gap of about 50 GeV on a 200 GeV edge), but the factor-1.8 LO/NLO discrepancy the reader cites belongs to the alpha_T/T2bb validation in Sec. 3.1, not to the EW search that sets the lower edge.","agreement_with_reader":"partial"},"referee_report":{"model":"selfhosted/deepseek-v4.1-flash","summary":"The manuscript presents a global profile-likelihood analysis of a nine-parameter MSSM defined at the SUSY scale (p9MSSM), combining the Planck relic density, the Higgs mass and diphoton rate, B-physics observables, δ(g−2)_μ, two reimplemented LHC 8 TeV searches (the CMS inclusive α_T search and the CMS 3ℓ+E_T^miss electroweak production search), and XENON100 with a likelihood that profiles over the pion-nucleon Σ term using the recent CHAOS determination Σ_πN = 43 ± 12 MeV. From roughly 1.8 million MultiNest points the authors identify a surviving region consistent at 2σ with δ(g−2)_μ and not excluded by electroweak production, corresponding to 200 GeV ≲ m_χ ≲ 500 GeV, argue that the XENON100 bound has greatly reduced statistical impact under the new Σ_πN value while LUX and XENON1T will remain decisive, and present projections for Fermi-LAT dSphs and Galactic Center γ-rays, AMS02 positrons, and the IceCube-86 spin-dependent sensitivity. Benchmark spectra and a pedagogical appendix on the relation between the present-day annihilation cross section and the thermally averaged relic-density cross section are included.","tokens_in":41785,"tokens_out":7266,"duration_ms":79052,"significance":"The methodological core is solid and useful: a profile-likelihood treatment of a p9MSSM slice with on-the-fly reimplementations of two LHC searches, a Poisson XENON100 likelihood with the background marginalised as the collaboration specifies, and — the genuinely novel element — a profiling over the Σ_πN nuclear uncertainty rather than a fixed value. The demonstration that the CHAOS Σ_πN determination substantially weakens the XENON100 constraint on mixed bino/higgsino dark matter is a timely and reproducible result, and the explicit comparison with the older Σ_πN = 66 ± 6 MeV determination is the right way to present it. The benchmark points and the σv-versus-relic-density discussion in Appendix B are valuable for readers who use such scans. If the 200–500 GeV window survives the robustness checks requested below, it would be a meaningful statement about the current survivability of neutralino dark matter in the pMSSM.","major_comments":[{"comment":"The abstract states the window 200 GeV < m_χ < 500 GeV as a result of the data, but the upper edge is partly a property of the imposed prior. Sec. 2 and Table 1 fix m_L1,2 = m_eR = m_μR = M1 + 50 GeV explicitly 'in order to enhance (g−2)_μ', and Sec. 4.2 itself notes that for a bino-like LSP an upper bound on the neutralino mass translates into an indirect bound on the smuon mass. The abstract should carry this qualification. More importantly, the manuscript should disentangle the two loops that set the upper edge: the chargino–sneutrino contribution (which, as Sec. 4.2 argues, gives m_χ± ≲ 1 TeV and hence m_χ ≲ 500 GeV for μ > M2) and the neutralino–smuon contribution (which is directly tied to the M1 + 50 GeV relation). A short scan with m_L1,2 free, or at minimum a quantitative statement of how far the 500 GeV edge moves when the relation is relaxed, is needed to support the abstract's phrasing. Relatedly, the sentence in Sec. 4.2 that the bound m_μ ≃ m_νμ ≲ 600 GeV is 'independent of our parametrization' sits uneasily with the fact that the smuon mass is fixed by M1 in this very parametrization; please reconcile the two statements.","section":"Abstract (s4); Sec. 2 and Table 1; Sec. 4.2","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"The lower edge of the window is set entirely by the authors' reimplementation of the CMS 3ℓ+E_T^miss search, which is evaluated on a randomly selected sample of about 40,000 points out of 1.8 million (Sec. 3.1). The validation in Fig. 2 shows a chargino-mass discrepancy of up to about 50 GeV against the official simplified-model limit, i.e. roughly 25% of the quoted 200 GeV edge. The manuscript should quantify the statistical uncertainty on the edge introduced by the thinning (for example by bootstrapping the subsample or by reporting the local density of points near the boundary in Fig. 8), and should state whether the thinning is uniform in the profile-likelihood sense or prior-weighted. The text of Sec. 4.2 already says the edge is 200–250 GeV depending on parameters; the abstract and the Fig. 8 caption should say the same rather than quoting a single number.","section":"Sec. 3.1 and Fig. 8","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"The XENON100 likelihood profiles over Σ_πN but fixes the remaining nuclear matrix elements, m_u/m_d = 0.553, m_s/m_d = 18.9 and σ_0 = 35.5 MeV, without citing the source of these values or varying them. Since the headline claim is that the Σ_πN uncertainty 'greatly reduces' the impact of XENON100, the residual sensitivity to the other nuclear parameters should be established rather than assumed. Please vary m_s/m_d and σ_0 within their uncertainties for a representative subset of points (or quote the induced variation in σ_p^SI analytically) and cite the origin of the fixed values. This is load-bearing for the strength of the 'almost negligible' conclusion in Sec. 4.1.","section":"Sec. 3.2, Eq. (8)","authors_acknowledge":null,"authors_acknowledge_p":null}],"minor_comments":[{"comment":"Table 2 lists the CMS Higgs mass as 125.8 ± 0.6 GeV, whereas Sec. 1 quotes 125.7 ± 0.4 GeV from Ref. [2] and 125.5 ± 0.6 GeV from ATLAS. Please reconcile the central value and error used in the likelihood with the values quoted in the introduction.","section":"Table 2 versus Sec. 1","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"The caption for panel (a) of Fig. 9 is missing in the manuscript as provided; only the caption for panel (b) appears. Please supply a caption describing the 68.3% and 95.0% regions in the (m_h, m_t̃1) plane.","section":"Fig. 9(a)","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"The priority claim 'for the first time' regarding the inclusion of the CHAOS Σ_πN determination in a XENON100 likelihood should either be supported by a citation check or softened, since the manuscript does not survey prior treatments of nuclear uncertainties in direct-detection likelihoods.","section":"Abstract (s5); Sec. 3.2","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"The statement that 'in the p9MSSM δ(g−2)_μ is parametrized only by m_χ' after the other constraints is an empirical observation from the scan, not a derivation; please rephrase it as such.","section":"Sec. 4.2","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"Adjusting the boost factor point by point to maximise the dSphs likelihood makes 'the likelihood does not exclude any of the points' a best-case statement. This should be said in the body text, not only in the figure caption, and the range of required boost factors should be summarised in the text.","section":"Sec. 4.4.1","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"The 'gaugino' benchmark has m_χ = 70.29 GeV, close to the LEP chargino limit of Eq. (2). Please list the chargino and slepton masses for each benchmark so that the reader can verify the LEP constraints directly.","section":"Table 3","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"The vertical axis of Fig. 10 is labelled σv, but the quantity plotted is the present-day ⟨σv⟩_ID, not the thermally averaged cross section that enters the relic density. A label such as ⟨σv⟩_ID would prevent confusion, especially since Appendix B explains the distinction at length.","section":"Fig. 10 and Appendix B","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"The statement that α_s and α_em are not varied because they are 'well constrained' deserves a sentence on the size of the induced shifts in m_h and Ω_χh², since the Higgs mass likelihood uses a 3 GeV theory error and α_s(m_Z) at the current precision shifts m_h by of order 1 GeV.","section":"Sec. 2","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"The choice ρ_0 = 0.4 GeV cm⁻³ is at the upper end of current determinations; please state the sensitivity of the Galactic Center comparison to this choice, or cite the determination that motivates it.","section":"Sec. 4.4.2","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"Selecting the three points with the smallest boost factor introduces a selection bias in the Galactic Center comparison; please note this explicitly when interpreting Fig. 11(b).","section":"Sec. 4.4.2","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"Typographical errors to correct: 'squarks an gluinos' and 'all contraints' in Sec. 5; 'the the γγ rate' in Sec. 4.3; 'Ho˙za 69' in the author address; 'O. Stl' in Ref. [96] should read 'O. Stal'.","section":"Sec. 5","authors_acknowledge":null,"authors_acknowledge_p":null},{"comment":"The 100 × 100 binning used to reduce the size of the figure also removes structure near the 95% boundary. Consider overlaying the unbinned profile-likelihood contour so that the boundary is not an artefact of the binning.","section":"Fig. 5(a)","authors_acknowledge":null,"authors_acknowledge_p":null}],"recommendation":"major_revision","confidential_remarks":"The paper is long and the indirect-detection section (Sec. 4.4) is exploratory; it could be shortened without loss. The main issue for the authors is framing: the abstract's window is a property of the p9MSSM slice with the imposed slepton-mass relation, and the body already says so in Sec. 4.2. The requested robustness checks on the lower edge and on the nuclear matrix elements are modest and should be feasible within a revision."},"author_rebuttal":null,"desk_editor":{"model":"selfhosted/deepseek-v4.1-flash","letter":"The thing worth your time here is not the 200–500 GeV neutralino window in the abstract; it is the XENON100 likelihood in Sec. 3.2. The authors fold the CHAOS determination of Sigma_piN = 43 ± 12 MeV into the direct-detection likelihood by profiling over it, and show in Fig. 4 that the XENON100 exclusion largely evaporates compared with the older Sigma_piN = 66 ± 6 MeV value. That is a clean, transferable point, and it is the part I would actually cite. The rest is a careful global fit of a nine-parameter MSSM: profile likelihood, six merged scans with mixed priors, two LHC searches reimplemented with Pythia plus a tuned PGS4 card and validated against the official simplified-model limits. The validation plots (Figs. 1 and 2) are honest about where the reimplementation sits relative to CMS, which is more than a lot of this literature does. On the window itself, the stress-test note is right and the reader is half right. The upper edge at 500 GeV is not a measurement; it follows from the imposed relation m_L1,2 = M1 + 50 GeV, which the authors state in Sec. 2 as a choice made to enhance g-2 and repeat in Sec. 4.2. Free the slepton masses and light sleptons can carry g-2 with a heavier neutralino, so the upper edge is a property of this slice. The abstract should say so. The lower edge is the more defensible one but carries a real uncertainty band: the EW search validation in Fig. 2 has a chargino-mass gap of up to about 50 GeV against a 200 GeV edge, and the likelihood is applied to a 2 percent subsample. One correction to the reader: the factor-1.8 LO/NLO discrepancy belongs to the alpha_T/T2bb validation, not the EW search that sets the lower edge. The indirect-detection sections are the weakest material. The per-point boost factor makes the dSphs statement a statement about required boosts rather than a constraint, and the AMS02 comparison is a null result (boosts of 60–120 needed) presented alongside positive projections. That is fine as a survey, but it is not evidence. Overall: solid, subfield-scoped, no hidden approximations, one overreaching abstract sentence. Send it out.","headline":"A competent p9MSSM global fit whose headline window is narrower than the abstract implies, but the Sigma_piN treatment of XENON100 is genuinely worth having.","tokens_in":42548,"tokens_out":834,"would_cite":true,"duration_ms":8942,"reading_group":"maybe","serious_thinker":"yes","would_accept_peer_review":true},"pith_extraction":{"msc":[],"pacs":["12.60.Jv","95.35.+d","13.40.Em","14.80.Ly"],"model":"selfhosted/deepseek-v4.1-flash","headline":"A nine-parameter version of supersymmetry still leaves a narrow window where a neutralino can be the dark matter, satisfy the muon magnetic-moment anomaly, and escape the LHC's electroweak searches.","keywords":["minimal supersymmetric standard model","neutralino dark matter","muon anomalous magnetic moment","LHC supersymmetry searches","direct detection of dark matter","pion-nucleon sigma term","profile likelihood","electroweakino production"],"falsifier":"A dedicated CMS or ATLAS reinterpretation of the $3l+E_T^{miss}$ search in the p9MSSM parameter space, or the $14$ TeV run reaching the $200$–$500$ GeV neutralino window, would settle whether that window is genuinely open; independently, a refined determination of $Σ_{πN}$ near $66$ MeV rather than $43$ MeV would remove the mixed bino/higgsino region the paper keeps alive.","tokens_in":42812,"feed_emoji":"🌌","tokens_out":3203,"duration_ms":32037,"temperature":0.7,"pith_summary":"The paper asks whether the minimal supersymmetric standard model, stripped down to nine free parameters at the supersymmetry scale, can still produce a neutralino that is the dark matter and simultaneously survive every current measurement. The authors build a global likelihood from the Planck relic density, the 125.8 GeV Higgs mass, flavour observables, the muon anomalous magnetic moment, the XENON100 direct-detection bound, and their own reimplementation of two LHC searches at $8$ TeV. Their answer is yes, but only in a corridor: requiring the muon anomaly at $2σ$ pushes the neutralino below about $500$ GeV, while the CMS search for chargino–neutralino production with three leptons and missing energy pushes it above about $200$ GeV. A second result concerns nuclear physics: using a newer, smaller value of the pion–nucleon $Σ$ term ($43±12$ MeV from CHAOS data) makes the XENON100 bound far less statistically damaging than it looked with older, larger values. The paper is a map of what is still allowed, not a discovery.","feed_headline":"SUSY dark matter survives in a 200–500 GeV window","feed_subtitle":"A smaller pion–nucleon sigma term weakens the XENON100 bound, and the LHC leaves a narrow mass range open.","key_machinery":"The argument runs on a profile-likelihood analysis of about $1.8×10^6$ MultiNest-sampled points, in which each point is passed through spectrum calculation, flavour and dark-matter codes, and then through purpose-built likelihoods for the experiments. Two of those likelihoods carry the weight. The first is an on-the-fly reimplementation of the CMS $α_T$ inclusive search and the CMS $3l+E_T^{miss}$ electroweak search: signal events are generated with PYTHIA 6.4, passed through a tuned PGS4 detector simulation, and compared to the published observed and background yields with a Poisson likelihood. The second is a XENON100 likelihood that separates an experimental Poisson part (two observed events, background marginalised at $b=1$, $δb=0.2$) from a theoretical part, and then profiles over $Σ_{πN}$ with a Gaussian, so that each point floats to whichever $Σ_{πN}$ maximises its likelihood. The authors are explicit about the cost of the electroweak search: because so many points are affected, that likelihood is computed only on a randomly chosen sample of roughly $40{,}000$ points, and the validation against the official simplified-model limit leaves a chargino-mass discrepancy of up to about $50$ GeV.","core_discovery":"The central claim is that the p9MSSM — the MSSM with nine free parameters $M_2$, $M_3$, $m_{Q_3}$, $m_{L_3}$, $A_t$, $A_τ$, $m_A$, $μ$, $��β$ — retains a viable neutralino dark matter candidate that satisfies the Planck relic density, the measured Higgs mass, $b$-physics constraints, and the muon $g-2$ anomaly at $2σ$, while not being excluded by the strongest LHC search for electroweakino pair production. The upper edge of the allowed range comes from $δ(g-2)_μ$, which in this parametrization depends only on the neutralino mass once the other constraints are applied; the lower edge comes from the CMS $3l+E_T^{miss}$ search at $8$ TeV with $9.2$ fb$^{-1}$. The resulting window is $200$ GeV $≲ m_χ ≲ 500$ GeV. Separately, the authors show that a recent determination of the pion–nucleon $Σ$ term, $Σ_{πN}=43±12$ MeV, shrinks the excluded region from XENON100 to a small set of mixed bino/higgsino points near $m_χ ≃ 60$–$90$ GeV; with the older $Σ_{πN}=66±6$ MeV the mixed region is almost entirely excluded. They note a residual tension: the best-fit $χ^2$ with all constraints combined is slightly worse than with either $g-2$ or XENON100 alone.","pith_inferences":["The lower edge of the window is not an experimental number in any direct sense: it is the output of the authors' own detector simulation and Poisson comparison, so a reader should treat $200$ GeV as a soft boundary whose position moves with the reimplementation, not as a published limit.","Because the electroweak likelihood was applied to only about $2\\%$ of the scan, the quoted window is a statement about a thinned sample; a full application could in principle shift the lower edge or reveal excluded pockets inside the window that the sampling missed.","The paper's treatment of $Σ_{πN}$ as a profiled nuisance parameter is a template that generalises: any direct-detection bound quoted against supersymmetric models inherits a comparable factor-of-five spread in the spin-independent cross section from hadronic inputs alone.","The reported tension between $g-2$ and XENON100 is a two-sided squeeze: improving the $g-2$ measurement's precision would tighten the upper edge, while a deeper direct-detection limit would remove the mixed-composition points that sit near the lower edge."],"forward_implications":["If the window is real, the $14$ TeV LHC run should close it: the authors state that the higher-energy run will definitely probe the $200$–$500$ GeV neutralino region.","A future XENON1T or LUX null result would strike at the mixed bino/higgsino composition that the surviving region relies on, even under the more forgiving $Σ_{πN}$ value.","If $Σ_{πN}$ settles near the older $66$ MeV value rather than the CHAOS $43$ MeV value, most of the mixed gaugino/higgsino parameter space is excluded at $95\\%$ confidence by XENON100 alone.","The surviving points predict spin-dependent cross sections within reach of the five-year IceCube-86 sensitivity, so solar neutrino searches offer an independent handle on the same region.","The three benchmark points — gaugino-like at $70$ GeV, mixed at $211$ GeV, higgsino-like at $1.36$ TeV — give concrete targets for gamma-ray and positron searches, though matching AMS02 positron data would need boost factors of order $60$–$120$."],"supporting_citations":[{"why":"Supplies the CMS $α_T$ inclusive search at $8$ TeV with $11.7$ fb$^{-1}$, including the eight signal boxes and the observed and background event yields that the authors' likelihood is built against.","marker":"[65]"},{"why":"Supplies the CMS $3l+E_T^{miss}$ electroweak production search at $9.2$ fb$^{-1}$, the strongest chargino–neutralino limit at the time and the source of the lower edge of the neutralino window.","marker":"[38]"},{"why":"Supplies the XENON100 225-live-day result, including the two observed events and the background estimate used in the Poisson part of the direct-detection likelihood.","marker":"[66]"},{"why":"Supplies the CHAOS-derived pion–nucleon $Σ$ term, $Σ_{πN}=43±12$ MeV, the new input whose small value drives the paper's claim that the XENON100 bound has weakened.","marker":"[68]"},{"why":"Supplies the Planck relic density, $Ω_χh^2=0.1199±0.0027$, the constraint that fixes the surviving parameter-space regions by annihilation mechanism.","marker":"[87]"},{"why":"Supplies the muon anomalous magnetic moment measurement, $δ(g-2)_μ=(28.7±8.0)×10^{-10}$, whose $2σ$ band sets the upper edge of the neutralino mass window.","marker":"[39]"},{"why":"Supplies MultiNest, the nested-sampling engine behind the $1.8×10^6$-point scan on which the profile-likelihood confidence regions rest.","marker":"[75]"},{"why":"Supplies micrOMEGAs, which computes the relic density and the direct- and indirect-detection observables at every scanned point.","marker":"[77]"},{"why":"Supplies the alternative $Σ_{πN}=66±6$ MeV determination used as the comparison case that shows how much the XENON100 conclusion depends on the hadronic input.","marker":"[113]"}],"fun_headline_variants":["SUSY neutralino allowed in a 200–500 GeV window","CMS 3l+MET sets the lower edge; g-2 sets the upper edge","CHAOS ΣπN = 43 ± 12 MeV shrinks XENON100's excluded region","Core discovery notes χ² tension between g-2 and XENON100","Core discovery's p9MSSM parameter list has a corrupted μβ token"],"cache_read_input_tokens":0,"weakest_assumption_plain":"The lower edge of the allowed window rests entirely on the authors' own simulation of the CMS three-lepton plus missing-energy search, which is validated only to within about 50 GeV in chargino mass, uses leading-order cross sections that differ from the experimental ones by a factor of about 1.8, and is applied to a randomly chosen 2 percent of the scan.","fun_headline_variants_meta":{"raw":{"variants":["SUSY neutralino allowed in a 200–500 GeV window","CMS 3l+MET sets the lower edge; g-2 sets the upper edge","CHAOS ΣπN = 43 ± 12 MeV shrinks XENON100's excluded region","Core discovery notes χ² tension between g-2 and XENON100","Core discovery's p9MSSM parameter list has a corrupted μβ token"]},"model":"selfhosted/deepseek-v4.1-flash","effort":"low","attempts":1,"cost_usd":0.0,"raw_usage":{"total_tokens":4137,"prompt_tokens":1288,"completion_tokens":2849,"prompt_tokens_details":null,"completion_tokens_details":{"reasoning_tokens":2752}},"tokens_in":1288,"tokens_out":2849,"duration_ms":27244,"image_pages":[],"temperature":1.0,"reasoning_budget":50,"reasoning_tokens":2752,"transport_provider":"selfhosted","cache_read_input_tokens":0,"cache_creation_input_tokens":0},"cache_creation_input_tokens":0},"created_at":"2026-11-10T10:57:04.302325+00:00","model_set":{"reader":"selfhosted/deepseek-v4.1-flash"},"falsifier":"A dedicated CMS or ATLAS reinterpretation of the $3l+E_T^{miss}$ search in the p9MSSM parameter space, or the $14$ TeV run reaching the $200$–$500$ GeV neutralino window, would settle whether that window is genuinely open; independently, a refined determination of $Σ_{πN}$ near $66$ MeV rather than $43$ MeV would remove the mixed bino/higgsino region the paper keeps alive.","supporting_citations":[{"cited_title":"Search for supersymmetry in hadronic final states with missing transverse energy using the variables AlphaT and b-quark multiplicity in pp collisions at 8 TeV","cited_arxiv_id":"1303.2985","evidence_quote":"Supplies the CMS $α_T$ inclusive search at $8$ TeV with $11.7$ fb$^{-1}$, including the eight signal boxes and the observed and background event yields that the authors' likelihood is built against."},{"cited_title":"Search for direct ewk production of susy particles in multilepton modes with 8tev data,","cited_arxiv_id":null,"evidence_quote":"Supplies the CMS $3l+E_T^{miss}$ electroweak production search at $9.2$ fb$^{-1}$, the strongest chargino–neutralino limit at the time and the source of the lower edge of the neutralino window."},{"cited_title":"Dark Matter Results from 225 Live Days of XENON100 Data","cited_arxiv_id":"1207.5988","evidence_quote":"Supplies the XENON100 225-live-day result, including the two observed events and the background estimate used in the Poisson part of the direct-detection likelihood."},{"cited_title":"Evaluation of the Pion-Nucleon Sigma Term from CHAOS Data","cited_arxiv_id":"1211.1148","evidence_quote":"Supplies the CHAOS-derived pion–nucleon $Σ$ term, $Σ_{πN}=43±12$ MeV, the new input whose small value drives the paper's claim that the XENON100 bound has weakened."},{"cited_title":"Planck 2013 results. XVI. Cosmological parameters","cited_arxiv_id":"1303.5076","evidence_quote":"Supplies the Planck relic density, $Ω_χh^2=0.1199±0.0027$, the constraint that fixes the surviving parameter-space regions by annihilation mechanism."},{"cited_title":"Final report of the E821 muon anomalous magnetic moment measurement at BNL","cited_arxiv_id":"hep-ex/0602035","evidence_quote":"Supplies the muon anomalous magnetic moment measurement, $δ(g-2)_μ=(28.7±8.0)×10^{-10}$, whose $2σ$ band sets the upper edge of the neutralino mass window."},{"cited_title":"MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics","cited_arxiv_id":"0809.3437","evidence_quote":"Supplies MultiNest, the nested-sampling engine behind the $1.8×10^6$-point scan on which the profile-likelihood confidence regions rest."},{"cited_title":"micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model","cited_arxiv_id":"hep-ph/0607059","evidence_quote":"Supplies micrOMEGAs, which computes the relic density and the direct- and indirect-detection observables at every scanned point."},{"cited_title":"New evaluation of the piNSigma term,","cited_arxiv_id":null,"evidence_quote":"Supplies the alternative $Σ_{πN}=66±6$ MeV determination used as the comparison case that shows how much the XENON100 conclusion depends on the hadronic input."}],"review_version":1}