{"id":"63be3383-0589-425a-87f5-af349d03ae0f","arxiv_id":"2412.20003","paper_version":2,"verdict":"CONDITIONAL","confidence":"MODERATE","novelty_score":4.0,"correctness_risk":"medium","formal_verification":"none","parameter_count":6,"one_line_summary":"Current data restrict the g~-SUGRA scenario to tanβ ≳ 5 and M0 ≳ 20 tanβ GeV, with large muon g-2 contributions difficult and future colliders needed to cover the remaining parameter space.","lead":"Scientists tested a version of supersymmetry called g~-SUGRA, where the gluino is much heavier than other gauginos, against current particle physics data. They find precise Higgs measurements strongly restrict the model, making it hard to fully explain the muon g-2 anomaly, but future colliders could probe what remains.","discovery_kind":"extension","skeptic_critique":{"model":"deepseek-v4-flash","headline":"The universal constraints tanβ≳5 and M0≳20 tanβ GeV are inferred from a scan with |M3|<10 TeV and |A0|<10 TeV; these are box boundaries, not model requirements, and heavier stops from larger M3 or |A0| could satisfy m_h=125 GeV at lower tanβ.","rationale":"The reader's weakest_assumption identified the finite scan box as the key limitation. I agree, and I sharpen it to the specific upper bounds |M3|<10 TeV and |A0|<10 TeV because those parameters directly control the Higgs-mass mechanism that produces the headline lower bounds. The paper's central claim has two tightly linked parts: the Higgs-imposed constraints and the statement that future colliders cover all viable parameter space. Both are only as strong as the scanned region. The collider-coverage concern is also real, but it is secondary because the finite M3/A0 box is what licenses the specific quantitative statements tanβ≳5 and M0≳20 tanβ GeV; testing that box is the fastest way to decide whether those statements survive. I am not asserting that low-tanβ, large-M3 points definitely survive all constraints; rather, the paper provides neither an analytic proof nor an extended scan to rule them out, and its own text treats Eq. (5) as requirements rather than ranges. The concrete test would settle the question. If survivors appear, the verdict should move to CONDITIONAL at minimum with the conditions being to either extend the scan or restrict the claims; if no survivors appear, the original conditional verdict stands unchanged. I therefore recommend no change relative to the reader's CONDITIONAL verdict, pending this check.","tokens_in":18149,"tokens_out":9596,"duration_ms":107554,"concrete_test":"Extend the scan to, e.g., M3∈[10,50] TeV and |A0|∈[10,50] TeV while keeping M0≤1 TeV and tanβ∈[2,5], and rerun the same SuSpect-2.52, HiggsBounds/HiggsSignal, micrOMEGAs, GM2Calc, and SModelS pipeline with at least 10^5 points per region. If any point satisfies all constraints, the paper's universal claims about tanβ and M0 fail and the coverage conclusions must be restricted to the original scan range or replaced by an analytic no-go argument. If no such point exists, the constraints are robust despite the finite scan box.","verdict_should_be":"UNCHANGED","load_bearing_attack":"The abstract states as universal conditions that precise Higgs measurements require tanβ≳5 and M0≳20 tanβ GeV, and that CLIC1500 plus HL-LHC can comprehensively probe the remaining parameter space. These claims rest on a scan restricted by Eq. (5) to |M3|<10 TeV, |A0|<10 TeV, M0<1 TeV, and tanβ<50. The paper calls these 'requirements', but they are only selected scan boundaries. In particular, the g~-SUGRA condition |M3|≫|M1|,|M2| does not imply M3<10 TeV, and |A0| is not fixed by any symmetry. In the MSSM, a 125 GeV SM-like Higgs at tanβ<5 can be achieved by raising the stop mass scale, which a larger M3 does through RGE contributions to squark masses, or by large |A_t|. Current LHC limits only require m_g≳2 TeV, so M3=20-50 TeV is experimentally admissible and still satisfies |M3|≫|M1|,|M2|. If any such point passes the paper's own constraints (m_h=125±2 GeV, B physics, relic density upper bound, LEP/LHC mass limits, SModelS), then the universal 'requires' statements are false and the subsequent coverage conclusion applies only to the originally scanned box. The absence of low-tanβ survivors in the current scan cannot be distinguished from a sampling gap because no scan density or statistics are reported.","agreement_with_reader":"agree"},"referee_report":{"model":"deepseek-v4-flash","summary":"This paper investigates the g~-SUGRA scenario of the CMSSM with non-universal gaugino masses, in which the GUT-scale gluino mass |M3| is much larger than |M1| and |M2|. The authors scan M0, M1, M2, M3, A0, and tanβ within the ranges specified in Eq. (5) and apply constraints from the measured Higgs mass, LHC and LEP SUSY searches, B-physics observables, the muon g-2 anomaly, dark matter relic density, and direct detection limits using public codes (SuSpect, micrOMEGAs, GM2Calc, HiggsSignals, HiggsBounds, SModelS). They find surviving regions that favor tanβ ≳ 5 and M0 ≳ 20 tanβ GeV, analyze the dominant dark matter annihilation mechanisms, and conclude that while direct detection experiments may not cover the viable space, HL-LHC at 3 ab^-1 and CLIC1500 at 2.5 ab^-1 can comprehensively probe the remaining parameter space.","tokens_in":18492,"tokens_out":6441,"duration_ms":59577,"significance":"If the claimed constraints were truly universal, the paper would significantly narrow the g~-SUGRA parameter space and provide testable collider predictions for a scenario that alleviates the CMSSM tension. The analysis has clear strengths: it employs established public codes, provides detailed classifications of dark matter annihilation channels with explicit benchmark points, and carefully distinguishes surviving regions under multiple constraints. The main value is as a phenomenological map of the scanned region. However, the headline statements in the abstract and conclusions overinterpret finite scan boundaries as model requirements, and the collider coverage claim rests on approximate overlays rather than model-specific simulations; these issues limit the currently supported scope of the conclusions.","major_comments":[{"comment":"The abstract and conclusions state that precise Higgs measurements 'require' tanβ ≳ 5 and M0 ≳ 20 tanβ GeV. This conclusion is drawn from a scan restricted to |M3| < 10 TeV, |A0| < 10 TeV, M0 < 1 TeV, and tanβ < 50. The g~-SUGRA hierarchy |M3| ≫ |M1|,|M2| does not itself impose these boundaries, and the LHC bound in Eq. (6) only requires m_g > 2 TeV. Points with M3 = 20–50 TeV or larger |A0| could yield a 125 GeV SM-like Higgs at lower tanβ through heavier stops, and such points are not excluded by any stated model requirement. The universal 'requires' statements are therefore not justified; at most they characterize the scanned box. Please either extend the scan to cover such points or soften the claim to be explicitly conditional on the range in Eq. (5).","section":"§II, Eq. (5); §III, bullet after Fig. 2; Abstract; §IV"},{"comment":"The paper does not report the number of scanned points, the sampling algorithm (e.g., flat versus log, grid versus random), or the density of points in parameter space. Without this information, the absence of surviving points at low tanβ or low M0 cannot be distinguished from a sampling gap. This is particularly relevant for the sharp lower bounds presented in Fig. 2 and the associated bullet. Please report scan statistics and, ideally, demonstrate convergence of the surviving region with increasing scan density.","section":"§II, Eq. (5); §III"},{"comment":"The claim that 'when the HL-LHC achieves an integral luminosity of 3 ab−1 and the CLIC 1500 reaches 2.5 ab−1, all surviving samples will be fully covered by these experiments' is based on overlaying exclusion curves from Refs. [99–104] on the (m_{χ̃_1^0}, m_{χ̃_1^±}) plane. This is not a detector-level simulation of the model's signals, and the paper itself notes that hadron colliders have limited sensitivity to compressed spectra. The coverage conclusion is therefore not quantitatively established. Please either perform a more detailed recasting with signal efficiencies, or soften the statement to indicate expected coverage under simplifying assumptions.","section":"§III, Fig. 7 and surrounding text"}],"minor_comments":[{"comment":"The derivation of μ ≈ mA contains a sign error: for tanβ ≫ 1, (M_Hd^2 − M_Hu^2 tan^2β)/(tan^2β − 1) is approximately −M_Hu^2, not +M_Hu^2 (unless M_Hu^2 is defined as negative). The physical conclusion μ ≈ |M_Hu| is likely unchanged, but the equations as written are misleading and should be corrected.","section":"§III, Eqs. (10)–(11)"},{"comment":"The units for σSI, σSDP, and σSDN are written as cm^-1, but they should be cm^2; please correct the units in Table II and the figure axis labels.","section":"Table II, Fig. 6"},{"comment":"There are several typos in the caption: 'excepted r' should be 'expected r', 'neturalino' should be 'neutralino', and 'compressd' should be 'compressed'.","section":"Fig. 7 caption"},{"comment":"The sentence 'We use the SuSpect-2.52 package to implement the theoretical and experimental constraints in our analysis' is imprecise; SuSpect computes the spectrum, while the constraints are implemented with the subsequently listed codes (micrOMEGAs, GM2Calc, HiggsSignals, etc.). Please rephrase.","section":"§II, first paragraph after Eq. (5)"}],"recommendation":"major_revision","confidential_remarks":"The paper is suitable for a phenomenological journal. The main issue is the overinterpretation of scan boundaries as universal model constraints; this is fixable by either extending the scan to cover larger M3 and |A0| values or recasting the claims as properties of the scanned region. The collider coverage claim also needs to be tempered or backed by a more quantitative recasting. I do not see grounds for rejection, but the revision should address the load-bearing points above."},"author_rebuttal":null,"desk_editor":{"model":"deepseek-v4-flash","letter":"Bottom line: this is a solid but incremental scan of the g~-SUGRA scenario (|M3|>>|M1|,|M2|), and it mostly delivers what it promises within the scanned box. The new elements are the updated constraint set (m_h=125±2 GeV, LHC mass limits, SModelS, B physics, relic density upper bound), the arbitrary M1/M2 scan, and a useful taxonomy of dark-matter annihilation mechanisms. The use of established public codes is a plus, and the paper is honest about the qualitative nature of the collider-reach discussion.\n\nThe soft spots are the ones the reader flagged, and the stress-test note lands. The abstract states 'requires tanβ≳5 and M0≳20 tanβ GeV' and claims that HL-LHC plus CLIC1500 will 'comprehensively probe' the remaining regions. Those are not requirements of the model; they are artifacts of the scan box defined in Eq. (5): M0,|M1|,|M2|<1 TeV, |M3|<10 TeV, |A0|<10 TeV, tanβ<50. Nothing in g~-SUGRA fixes |M3| or |A0| at those scales. Raise M3 or |A0|, and you can get m_h=125 GeV at lower tanβ; the paper's own benchmark P2 sits near the |A0|=10 TeV edge. The paper reports no scan density or statistics, so one cannot tell whether the absence of low-tanβ survivors is a real property or a sampling gap. The same applies to the collider-coverage claim: overlaying published exclusion curves is a reasonable sanity check, but 'fully covered' is not supported without either detector-level simulation or a demonstration that the unsimulated topologies have no coverage holes. Nor is any code or data released to allow replication.\n\nThe µ≈mA∝M3 relation is borrowed from the authors' earlier Ref. [75]; that is prior analytical work, so no circularity. The citation pattern is fine. The benchmark points and the DM annihilation classification are usable.\n\nWho is this for? Practitioners in SUSY phenomenology who want a quick, current map of the g~-SUGRA parameter region and its DM annihilation channels. It is not a new scenario and not a precision study.\n\nRecommendation: send it to peer review, but with referees who will push the authors to either soften the universal language or enlarge the scan and report scan statistics. The central numerical results are likely sound within the box; the over-generalization is fixable. I would not cite it as a definitive source for the tanβ–M0 constraint, but I would cite it as an updated scan of the scenario.","headline":"A credible but over-interpreted rescan of the g~-SUGRA scenario: scan-box boundaries are dressed up as model requirements, and the collider-coverage claim outruns the qualitative evidence.","tokens_in":19082,"tokens_out":2769,"would_cite":false,"duration_ms":26720,"reading_group":"maybe","serious_thinker":"yes","would_accept_peer_review":true},"rs_alignment":null,"lean_confirmation":null,"pith_extraction":{"msc":[],"pacs":[],"model":"deepseek-v4-flash","headline":"This paper claims the gluino-SUGRA scenario survives current data only in a narrow Higgs-forced corner, and that HL-LHC plus CLIC1500 can cover it.","keywords":["supersymmetry","CMSSM","non-universal gaugino masses","gluino-SUGRA","muon anomalous magnetic moment","dark matter relic density","Higgs constraints","future colliders"],"falsifier":"Run the same scan with $M_0$ and $\\lvert M_3\\rvert$ extended beyond the stated ranges and recast the HL-LHC and CLIC1500 search channels at detector level for the surviving benchmark points; if any surviving point falls outside the plotted exclusion curves, or if a benchmark inside the claimed covered region has no detectable signal, the paper's coverage claim is refuted.","tokens_in":17925,"feed_emoji":"⚛️","tokens_out":16167,"duration_ms":140154,"temperature":0.7,"pith_summary":"This paper maps the surviving parameter space of the $\\tilde{g}$-SUGRA variant of the constrained minimal supersymmetric standard model (CMSSM), in which non-universal gaugino masses at the SU(5) grand-unified scale put the gluino far above the bino and wino. It asks whether this variant can still fit the measured 125 GeV Higgs, the $(g-2)_\\mu$ anomaly, the dark matter relic density, $B$-physics observables, and direct SUSY searches. The answer it reaches is a narrow yes: Higgs measurements force $\\tan\\beta \\gtrsim 5$ and $M_0 \\gtrsim 20\\,\\tan\\beta$ GeV, and that corner of parameter space can still give a sizable muon anomaly contribution, though a very large one is hard to arrange. The paper then shows that dark matter direct-detection experiments will struggle to cover the viable region, while the combined reach of HL-LHC at $3\\,\\mathrm{ab}^{-1}$ and CLIC1500 at $2.5\\,\\mathrm{ab}^{-1}$ can probe all of it.","feed_headline":"SUSY survives only in a tight Higgs corner; colliders can sweep it","feed_subtitle":"The g~-SUGRA extension must satisfy tan β ≥ 5 and M0 ≥ 20 tan β GeV; HL-LHC and CLIC1500 cover the rest.","key_machinery":"The load-bearing object is the GUT-scale hierarchy $\\lvert M_3\\rvert \\gg \\lvert M_1\\rvert, \\lvert M_2\\rvert$, the $\\tilde{g}$-SUGRA boundary condition, which feeds through renormalization-group running so that squarks and gluinos become heavy enough to evade LHC mass limits while sleptons and electroweakinos stay light enough to address $(g-2)_\\mu$ and dark matter. The second structural relation is the electroweak-symmetry-breaking identity $m_A \\approx \\mu \\approx \\lvert M_{H_u}\\rvert$ that holds for large $\\tan\\beta$, together with $M_{H_u}$ being nearly proportional to $M_3$; this ties the Higgsino and pseudoscalar Higgs masses to the gluino input and drives many of the surviving-region correlations.","core_discovery":"On the paper's own terms, the central discovery is that the $\\tilde{g}$-SUGRA scenario---defined by $\\lvert M_3\\rvert \\gg \\lvert M_1\\rvert, \\lvert M_2\\rvert$ at the GUT scale---remains a viable resolution of the CMSSM's tension with data, but only inside a sharply restricted window. Precise Higgs data alone impose $\\tan\\beta \\gtrsim 5$ and $M_0 \\gtrsim 20\\,\\tan\\beta$ GeV, because small $M_0$ or small $\\tan\\beta$ cannot produce a $125 \\pm 2$ GeV SM-like Higgs. The same Higgs constraint makes a large SUSY contribution to $(g-2)_\\mu$ difficult: a large contribution wants light sleptons and large $\\tan\\beta$, while the Higgs mass wants the opposite. Surviving dark matter candidates annihilate through stau co-annihilation, neutralino--chargino co-annihilation, or neutralino annihilation, and most predict spin-independent scattering cross sections below the neutrino floor. The paper concludes that the whole surviving parameter space can be covered by HL-LHC at $3\\,\\mathrm{ab}^{-1}$ together with CLIC1500 at $2.5\\,\\mathrm{ab}^{-1}$, giving concrete targets for the next collider runs.","pith_inferences":["The scan window is not derived from the model, so the 'full coverage' claim applies only to the box actually scanned; extending $M_0$ or $\\lvert M_3\\rvert$ could in principle uncover viable points outside the future colliders' reach.","The collider coverage is obtained by overlaying published exclusion curves rather than by simulating this model's own signals; a dedicated detector-level recasting of electroweakino and slepton channels could shift the claimed boundary.","Because the paper's key Higgs constraint is the $125\\pm2$ GeV window applied through current tools, tighter Higgs mass measurements or improved calculations would change the $\\tan\\beta$ and $M_0$ floor even if the scenario itself is correct."],"forward_implications":["Under the paper's coverage claim, a null result at both HL-LHC with $3\\,\\mathrm{ab}^{-1}$ and CLIC1500 with $2.5\\,\\mathrm{ab}^{-1}$ would close the scanned $\\tilde{g}$-SUGRA window.","Dark matter direct detection is not a decisive test of this scenario, because many surviving samples predict spin-independent cross sections below the neutrino floor.","The model predicts compressed electroweakino spectra with the lightest chargino nearly degenerate with the lightest neutralino, making lepton-collider searches a sharper probe than hadron-collider searches.","Benchmark points in the surviving region give SUSY contributions to $\\Delta a_\\mu$ of a few $\\times 10^{-10}$, so a future measurement tightening the anomaly would test the light-slepton part of the model."],"supporting_citations":[{"why":"Supplies the SU(5) grand-unified mechanism for non-universal gaugino masses and the renormalization-group relations connecting the gluino input to the Higgsino and pseudoscalar Higgs masses.","marker":"[75]"},{"why":"Spectrum generator used to evolve the soft masses and impose theoretical and Higgs constraints.","marker":"[76]"},{"why":"Imposes the 125 +/- 2 GeV SM-like Higgs signal-rate constraint.","marker":"[81]"},{"why":"Applies LEP, Tevatron, and LHC bounds on the extended Higgs sector.","marker":"[82]"},{"why":"Give the measured and world-average values of the muon anomalous magnetic moment that define the g-2 target.","marker":"[6, 9]"},{"why":"Compute the dark matter relic density and annihilation cross-sections used to classify surviving samples.","marker":"[84, 85]"},{"why":"Current direct-detection result whose spin-independent limit is compared with the model's predicted cross sections.","marker":"[83]"},{"why":"Computes the expected signal-strength ratio for LHC direct SUSY searches used to mark excluded samples.","marker":"[88]"},{"why":"Provides the HL-LHC compressed-spectrum search projection used for the 3 ab^-1 coverage claim.","marker":"[101]"},{"why":"Provides the CLIC1500 search projection used for the 2.5 ab^-1 coverage claim.","marker":"[104]"}],"fun_headline_variants":["SUSY cornered by Higgs, but colliders can sweep it","g~-SUGRA survives in a tight window; LHC and CLIC can probe","Higgs data box in SUSY; HL-LHC and CLIC cover the leftovers","Only a narrow Higgs slice left for SUSY; future colliders find it"],"cache_read_input_tokens":3200,"weakest_assumption_plain":"The scan only explores $M_0,\\lvert M_1\\rvert,\\lvert M_2\\rvert < 1$ TeV, $1$ TeV $< \\lvert M_3\\rvert < 10$ TeV, $\\lvert A_0\\rvert < 10$ TeV and $1 < \\tan\\beta < 50$; if viable $\\tilde{g}$-SUGRA points live outside that box, the claim that future colliders cover the entire parameter space does not follow.","fun_headline_variants_meta":{"raw":{"variants":["SUSY cornered by Higgs, but colliders can sweep it","g~-SUGRA survives in a tight window; LHC and CLIC can probe","Higgs data box in SUSY; HL-LHC and CLIC cover the leftovers","Only a narrow Higgs slice left for SUSY; future colliders find it"]},"model":"deepseek-v4-flash","effort":"low","cost_usd":0.000287,"raw_usage":{"total_tokens":1801,"prompt_tokens":1174,"completion_tokens":627,"prompt_tokens_details":{"cached_tokens":384},"prompt_cache_hit_tokens":384,"prompt_cache_miss_tokens":790,"completion_tokens_details":{"reasoning_tokens":539}},"tokens_in":790,"tokens_out":627,"duration_ms":6282,"temperature":1.0,"reasoning_tokens":539,"cache_read_input_tokens":384,"cache_creation_input_tokens":0},"cache_creation_input_tokens":0},"created_at":"2026-08-10T23:41:16.575663+00:00","model_set":{"reader":"deepseek-v4-flash"},"falsifier":"Run the same scan with $M_0$ and $\\lvert M_3\\rvert$ extended beyond the stated ranges and recast the HL-LHC and CLIC1500 search channels at detector level for the surviving benchmark points; if any surviving point falls outside the plotted exclusion curves, or if a benchmark inside the claimed covered region has no detectable signal, the paper's coverage claim is refuted.","supporting_citations":[{"cited_title":"Solving the muon g-2 anomaly in CMSSM extension with non-universal gaugino masses","cited_arxiv_id":"1808.10851","evidence_quote":"Spectrum generator used to evolve the soft masses and impose theoretical and Higgs constraints."},{"cited_title":"A search for new phenomena in pp collisions at sqrt(s) = 13 TeV in final states with missing transverse momentum and at least one jet using the alphaT variable","cited_arxiv_id":"1611.00338","evidence_quote":"Provides the HL-LHC compressed-spectrum search projection used for the 3 ab^-1 coverage claim."}],"review_version":1}