- Open Access
Complementary probes of bilinear -parity violating SUSY models with a winolike LSP via neutrino oscillations and at the LHC
Phys. Rev. D 114, 095005 – Published 2 November, 2026
DOI: https://doi.org/10.1103/ghxk-bdbw
Abstract
In this work, we explore the bilinear -parity violating supersymmetry model’s parameter space by performing a Markov Chain Monte Carlo scan with neutrino oscillation data, Higgs mass and its coupling strengths, and flavor observables such as -hadron decay branching ratios. From the allowed parameter space, we analyze the decay patterns of wino-like lighter charginos and lightest neutralinos and demonstrate how the branching ratios to different neutrino and charged lepton flavors depend on the neutrino mass hierarchy. Furthermore, we investigate the impact of current LHC bounds and projected future sensitivities from trilepton resonance searches on the allowed parameter space. We show that considering the branching ratio , obtained at the best-fit point, the wino-like mass degenerate are excluded up to 565 GeV from LHC Run-II data. The projected exclusion reach with a similar branching ratio at high-luminosity LHC (HL-LHC) is around 950 GeV. For a simplified scenario where decays via a boson with branching ratios of 1%, 50%, and 100%, wino masses can be excluded up to approximately 600 GeV, 1185 GeV, and 1350 GeV, respectively. Our analysis shows that the HL-LHC can probe a significant portion of the allowed parameter space by neutrino oscillation measurements and other experimental constraints.
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References (128)
- G. Bellini et al. (Borexino Collaboration), Final results of Borexino Phase-I on low energy solar neutrino spectroscopy, Phys. Rev. D 89, 112007 (2014).
- A. Gando et al. (KamLAND Collaboration), Reactor on-off antineutrino measurement with KamLAND, Phys. Rev. D 88, 033001 (2013).
- G. Bak et al. (RENO Collaboration), Measurement of reactor antineutrino oscillation amplitude and frequency at RENO, Phys. Rev. Lett. 121, 201801 (2018).
- D. Adey et al. (Daya Bay Collaboration), Measurement of the electron antineutrino oscillation with 1958 days of operation at Daya Bay, Phys. Rev. Lett. 121, 241805 (2018).
- M. Jiang et al. (Super-Kamiokande Collaboration), Atmospheric neutrino oscillation analysis with improved event reconstruction in Super-Kamiokande IV, Prog. Theor. Exp. Phys. 2019, 053F01 (2019).
- K. Abe et al. (T2K Collaboration), Search for violation in neutrino and antineutrino oscillations by the T2K experiment with protons on target, Phys. Rev. Lett. 121, 171802 (2018).
- M. A. Acero et al. (NOvA Collaboration), First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA, Phys. Rev. Lett. 123, 151803 (2019).
- S. Weinberg, A model of leptons, Phys. Rev. Lett. 19, 1264 (1967).
- A. Salam, Weak and electromagnetic interactions, Conf. Proc. C 680519, 367 (1968), https://inspirehep.net/literature/53083.
- M. Gell-Mann, A schematic model of baryons and mesons, Phys. Lett. 8, 214 (1964).
- M. Drees, R. Godbole, and P. Roy, Theory and Phenomenology of Sparticles: An Account of Four-Dimensional N =1 Supersymmetry in High Energy Physics (World Scientific, Singapore, 2005).
- H. Baer and X. Tata, Weak Scale Supersymmetry: From Superfields to Scattering Events (Cambridge University Press, Cambridge, England, 2006).
- S. P. Martin, A Supersymmetry primer, Adv. Ser. Dir. High Energy Phys. 18, 1 (1998).
- L. Susskind, The gauge hierarchy problem, technicolor, supersymmetry, and all that, Phys. Rep. 104, 181 (1984).
- E. Gildener, Gauge-symmetry hierarchies, Phys. Rev. D 14, 1667 (1976).
- J. Ellis, S. Kelley, and D. Nanopoulos, Precision lep data, supersymmetric guts and string unification, Phys. Lett. B 249, 441 (1990).
- U. Amaldi, W. de Boer, and H. Fürstenau, Comparison of grand unified theories with electroweak and strong coupling constants measured at lep, Phys. Lett. B 260, 447 (1991).
- G. Ross and R. Roberts, Minimal supersymmetric unification predictions, Nucl. Phys. B377, 571 (1992).
- F. Zwicky, Die Rotverschiebung von extragalaktischen Nebeln, Helv. Phys. Acta 6, 110 (1933).
- F. Zwicky, On the masses of nebulae and of clusters of nebulae, Astrophys. J. 86, 217 (1937).
- Y. Sofue and V. Rubin, Rotation curves of spiral galaxies, Annu. Rev. Astron. Astrophys. 39, 137 (2001).
- G. Jungman, M. Kamionkowski, and K. Griest, Supersymmetric dark matter, Phys. Rep. 267, 195 (1996).
- H. K. Dreiner, An introduction to explicit -parity violation, Adv. Ser. Dir. High Energy Phys. 21, 565 (2010).
- R. Barbier et al., -parity violating supersymmetry, Phys. Rep. 420, 1 (2005).
- A. Choudhury, A. Mondal, and S. Mondal, Status of -parity violating SUSY, Eur. Phys. J. Special Topics 233, 2187 (2024).
- T. Banks, Y. Grossman, E. Nardi, and Y. Nir, Supersymmetry without -parity and without lepton number, Phys. Rev. D 52, 5319 (1995).
- Y. Grossman and H. E. Haber, (S)neutrino properties in -parity violating supersymmetry. 1. conserving phenomena, Phys. Rev. D 59, 093008 (1999).
- S. Davidson and M. Losada, Neutrino masses in the violating MSSM, J. High Energy Phys. 05 (2000) 021.
- S. Davidson and M. Losada, Basis independent neutrino masses in the violating MSSM, Phys. Rev. D 65, 075025 (2002).
- F. Borzumati, Y. Grossman, E. Nardi, and Y. Nir, Neutrino masses and mixing in supersymmetric models without parity, Phys. Lett. B 384, 123 (1996).
- B. Mukhopadhyaya, S. Roy, and F. Vissani, Correlation between neutrino oscillations and collider signals of supersymmetry in an -parity violating model, Phys. Lett. B 443, 191 (1998).
- S. Rakshit, G. Bhattacharyya, and A. Raychaudhuri, -parity-violating trilinear couplings and recent neutrino data, Phys. Rev. D 59, 091701 (1999).
- A. Datta, B. Mukhopadhyaya, and S. Roy, Constraining an -parity violating supersymmetric theory from the superkamiokande data on atmospheric neutrinos, Phys. Rev. D 61, 055006 (2000).
- B. C. Allanach and C. H. Kom, Lepton number violating mSUGRA and neutrino masses, J. High Energy Phys. 04 (2008) 081.
- B. C. Allanach, C. H. Kom, and M. Hanussek, Computation of neutrino masses in -parity violating supersymmetry: SOFTSUSY3.2, Comput. Phys. Commun. 183, 785 (2012).
- Y. Grossman and H. E. Haber, Sneutrino mixing phenomena, Phys. Rev. Lett. 78, 3438 (1997).
- H. K. Dreiner and G. G. Ross, -parity violation at hadron colliders, Nucl. Phys. B365, 597 (1991).
- D. Dercks, H. Dreiner, M. E. Krauss, T. Opferkuch, and A. Reinert, -parity violation at the LHC, Eur. Phys. J. C 77, 856 (2017).
- R. Bose, A. Datta, A. Kundu, and S. Poddar, LHC signatures of neutrino mass generation through R-parity violation, Phys. Rev. D 90, 035007 (2014).
- A. Datta and S. Poddar, Probing -parity violating models of neutrino mass at the LHC via top squark decays, Phys. Rev. D 79, 075021 (2009).
- S. P. Das, A. Datta, and S. Poddar, Top squark and neutralino decays in a -parity violating model constrained by neutrino oscillation data, Phys. Rev. D 73, 075014 (2006).
- V. A. Mitsou, -parity violating supersymmetry and neutrino physics: Experimental signatures, Proc. Sci. PLANCK2015 (2015) 085 [arXiv:1510.02660].
- J. Cohen, S. Bar-Shalom, G. Eilam, and A. Soni, -parity violating supersymmetry and the 125 GeV Higgs boson signals, Phys. Rev. D 100, 115051 (2019).
- S. Weinberg, Baryon and lepton nonconserving processes, Phys. Rev. Lett. 43, 1566 (1979).
- S. Weinberg, Varieties of baryon and lepton nonconservation, Phys. Rev. D 22, 1694 (1980).
- P. Minkowski, at a rate of one out of muon decays?, Phys. Lett. 67B, 421 (1977).
- M. Gell-Mann, P. Ramond, and R. Slansky, Complex spinors and unified theories, Conf. Proc. C 790927, 315 (1979), arXiv:1306.4669.
- J. Schechter and J. W. F. Valle, Neutrino masses in theories, Phys. Rev. D 22, 2227 (1980).
- R. N. Mohapatra and G. Senjanovic, Neutrino mass and spontaneous parity nonconservation, Phys. Rev. Lett. 44, 912 (1980).
- J. Schechter and J. W. F. Valle, Neutrino decay and spontaneous violation of lepton number, Phys. Rev. D 25, 774 (1982).
- S. Rakshit, Neutrino masses and -parity violation, Mod. Phys. Lett. A 19, 2239 (2004).
- Y. Grossman and S. Rakshit, Neutrino masses in -parity violating supersymmetric models, Phys. Rev. D 69, 093002 (2004).
- A. Choudhury, S. Mitra, A. Mondal, and S. Mondal, An MCMC analysis to probe trilinear RPV SUSY scenarios and possible LHC signatures, Phys. Rev. D 112, 015016 (2025).
- S. Roy and B. Mukhopadhyaya, Some implications of a supersymmetric model with -parity breaking bilinear interactions, Phys. Rev. D 55, 7020 (1997).
- B. de Carlos and P. L. White, -parity violation effects through soft supersymmetry breaking terms and the renormalization group, Phys. Rev. D 54, 3427 (1996).
- E. Nardi, Renormalization group induced neutrino masses in supersymmetry without -parity, Phys. Rev. D 55, 5772 (1997).
- R. Hempfling, Neutrino masses and mixing angles in SUSY GUT theories with explicit -parity breaking, Nucl. Phys. B478, 3 (1996).
- M. Hirsch, M. A. Diaz, W. Porod, J. C. Romao, and J. W. F. Valle, Neutrino masses and mixings from supersymmetry with bilinear parity violation: A theory for solar and atmospheric neutrino oscillations, Phys. Rev. D 62, 113008 (2000).
- R. S. Hundi, Constraints from neutrino masses and muon in the bilinear -parity violating supersymmetric model, Phys. Rev. D 83, 115019 (2011).
- M. A. Díaz, M. Rivera, and N. Rojas, On neutrino masses in the MSSM with BRpV, Nucl. Phys. B887, 338 (2014).
- M. Hirsch, J. C. Romao, and J. W. F. Valle, Bilinear R-parity violating SUSY: Neutrinoless double beta decay in the light of solar and atmospheric neutrino data, Phys. Lett. B 486, 255 (2000).
- A. Abada, S. Davidson, and M. Losada, Neutrino masses and mixings in the MSSM with soft bilinear R(p) violation, Phys. Rev. D 65, 075010 (2002).
- M. A. Diaz, C. Mora, and A. R. Zerwekh, Study of a neutrino mass texture generated in supergravity with bilinear -parity violation, Eur. Phys. J. C 44, 277 (2005).
- F. de Campos, O. J. P. Eboli, M. B. Magro, W. Porod, D. Restrepo, S. P. Das, M. Hirsch, and J. W. F. Valle, Probing neutralino properties in minimal supergravity with bilinear -parity violation, Phys. Rev. D 86, 075001 (2012).
- M. Gozdz and W. A. Kaminski, Constraining bilinear -parity violation from neutrino masses, Phys. Rev. D 78, 075021 (2008).
- A. Choudhury, S. Mitra, A. Mondal, and S. Mondal, Bilinear R-parity violating supersymmetry under the light of neutrino oscillation, Higgs and flavor data, J. High Energy Phys. 02 (2024) 004.
- H. K. Dreiner, D. Köhler, and S. Nangia, A approach to analyzing neutrino data in the -parity-violating MSSM, Eur. Phys. J. C 83, 44 (2023).
- P. Fileviez Perez and S. Spinner, The minimal theory for -parity violation at the LHC, J. High Energy Phys. 04 (2012) 118.
- S. Dumitru, B. A. Ovrut, and A. Purves, The -parity violating decays of charginos and neutralinos in the MSSM, J. High Energy Phys. 02 (2019) 124.
- S. Dumitru, B. A. Ovrut, and A. Purves, -parity violating decays of Wino Chargino and Wino Neutralino LSPs and NLSPs at the LHC, J. High Energy Phys. 06 (2019) 100.
- G. Aad et al. (ATLAS Collaboration), Search for trilepton resonances from chargino and neutralino pair production in collisions with the ATLAS detector, Phys. Rev. D 103, 112003 (2021).
- A. Collaboration, Atlas experiment—public results. https://twiki.cern.ch/twiki/bin/view/AtlasPublic/SupersymmetryPublicResults, 2023.
- C. Collaboration, Cms experiment—physics results. https://twiki.cern.ch/twiki/bin/view/CMSPublic/PhysicsResultsSUS, 2023.
- X. Wang and M. Abdughani, Current status and prospects of light bino-higgsino dark matter in natural SUSY, arXiv:2602.14088.
- L. Constantin, S. Kraml, A. Lessa, T. Reymermier, and W. Waltenberger, On the coverage of electroweak-inos within the pMSSM with SModelS—a comparison with the ATLAS pMSSM study, SciPost Phys. 21, 002 (2026).
- A. Chatterjee, A. Choudhury, S. Mitra, A. Mondal, and S. Mondal, Exploring the BSM parameter space with neural network aided simulation-based inference, J. High Energy Phys. 12 (2025) 138.
- A. Choudhury, A. Mondal, and S. Sarkar, Searches for the BSM scenarios at the LHC using decision tree-based machine learning algorithms: A comparative study and review of random forest, AdaBoost, XGBoost and LightGBM frameworks, Eur. Phys. J. Special Topics 233, 2425 (2024).
- A. S. Cornell, B. Fuks, M. D. Goodsell, and A. M. Ncube, Improving smuon searches with neural networks, Eur. Phys. J. C 85, 51 (2025).
- M. M. Altakach, S. Kraml, A. Lessa, S. Narasimha, T. Pascal, T. Reymermier, and W. Waltenberger, Global LHC constraints on electroweak-inos with SModelS v2.3, SciPost Phys. 16, 101 (2024).
- M. Chakraborti, U. Chattopadhyay, and S. Poddar, How light a higgsino or a wino dark matter can become in a compressed scenario of MSSM, J. High Energy Phys. 09 (2017) 064.
- S. Bisal, A. Chatterjee, D. Das, and S. A. Pasha, Radiative corrections to the direct detection of the Higgsino- and wino-like neutralino dark matter: Spin-dependent interactions, Phys. Rev. D 111, 083003 (2025).
- D. Chowdhury, K. M. Patel, X. Tata, and S. K. Vempati, Indirect searches of the degenerate MSSM, Phys. Rev. D 95, 075025 (2017).
- R. K. Barman, B. Bhattacherjee, A. Chakraborty, and A. Choudhury, Study of MSSM heavy Higgs bosons decaying into charginos and neutralinos, Phys. Rev. D 94, 075013 (2016).
- A. Choudhury and S. Mondal, Revisiting the exclusion limits from direct Chargino-Neutralino production at the LHC, Phys. Rev. D 94, 055024 (2016).
- M. Chakraborti, U. Chattopadhyay, A. Choudhury, A. Datta, and S. Poddar, Reduced LHC constraints for higgsino-like heavier electroweakinos, J. High Energy Phys. 11 (2015) 050.
- M. Chakraborti, U. Chattopadhyay, A. Choudhury, A. Datta, and S. Poddar, The electroweak sector of the pMSSM in the light of LHC—8 TeV and other data, J. High Energy Phys. 07 (2014) 019.
- A. Choudhury and A. Datta, Neutralino dark matter confronted by the LHC constraints on Electroweak SUSY signals, J. High Energy Phys. 09 (2013) 119.
- A. Choudhury and A. Datta, Many faces of low mass neutralino dark matter in the unconstrained MSSM, LHC data and new signals, J. High Energy Phys. 06 (2012) 006.
- N. Bhattacharyya, A. Choudhury, and A. Datta, Low mass neutralino dark matter in mSUGRA and more general models in the light of LHC data, Phys. Rev. D 84, 095006 (2011).
- R. K. Barman, A. Choudhury, and S. Sarkar, Revisiting the electroweakino sector of the baryon number violating MSSM at the HL-LHC with deep neural networks, arXiv:2602.06957.
- G. Cottin, J. C. Helo, F. Hernández-Pinto, N. A. Neill, and Z. S. Wang, Probing light neutralinos from pair-produced sleptons with displaced vertices at the high-luminosity LHC, J. High Energy Phys. 09 (2025) 102.
- R. Baruah, A. Choudhury, K. Ghosh, S. Mondal, and R. Sahu, Probing sub-TeV Higgsinos aided by a machine-learning-based top tagger in the context of trilinear -parity violating SUSY, Phys. Rev. D 111, 095004 (2025).
- H. K. Dreiner, M. Hank, Y. S. Koay, M. Schürmann, R. Sengupta, A. Shah, N. Strobbe, and E. Thomson, The ABC of RPV II: Classification of -parity violating signatures from UDD couplings and their coverage at the LHC, J. High Energy Phys. 06 (2025) 258.
- A. Choudhury, A. Mondal, S. Mondal, and S. Sarkar, Slepton searches in the trilinear RPV SUSY scenarios at the HL-LHC and HE-LHC, arXiv:2310.07532.
- B. Bhattacherjee and P. Solanki, Search for electroweakinos in -parity violating SUSY with long-lived particles at HL-LHC, J. High Energy Phys. 12 (2023) 148.
- H. K. Dreiner, Y. S. Koay, D. Köhler, V. M. Lozano, J. Montejo Berlingen, S. Nangia, and N. Strobbe, The ABC of RPV: Classification of -parity violating signatures at the LHC for small couplings, J. High Energy Phys. 07 (2023) 215.
- A. Choudhury, A. Mondal, S. Mondal, and S. Sarkar, Improving sensitivity of trilinear R-parity violating SUSY searches using machine learning at the LHC, Phys. Rev. D 109, 035001 (2024).
- R. K. Barman, B. Bhattacherjee, I. Chakraborty, A. Choudhury, and N. Khan, Electroweakino searches at the HL-LHC in the baryon number violating MSSM, Phys. Rev. D 103, 015003 (2021).
- R. K. Barman, A. Choudhury, and S. Sarkar, Reconstructing Sparticle masses at the LHC using generative machine learning, Eur. Phys. J. Special Topics 235, 1903 (2026).
- E. J. Chun, D.-W. Jung, and J. D. Park, Bi-large neutrino mixing from bilinear -parity violation with non-universality, Phys. Lett. B 557, 233 (2003).
- Y. Grossman and H. E. Haber, Basis independent analysis of the sneutrino sector in -parity violating supersymmetry, Phys. Rev. D 63, 075011 (2001).
- P. F. de Salas, D. V. Forero, S. Gariazzo, P. Martínez-Miravé, O. Mena, C. A. Ternes, M. Tórtola, and J. W. F. Valle, 2020 global reassessment of the neutrino oscillation picture, J. High Energy Phys. 02 (2021) 071.
- B. C. Allanach, A. Djouadi, J. L. Kneur, W. Porod, and P. Slavich, Precise determination of the neutral Higgs boson masses in the MSSM, J. High Energy Phys. 09 (2004) 044.
- CMS Collaboration, CMS analysis physics summary, https://cds.cern.ch/record/2706103/files/HIG-19-005-pas.pdf, 2019.
- R. Aaij et al. (LHCb Collaboration), Analysis of neutral -meson decays into two muons, Phys. Rev. Lett. 128, 041801 (2022).
- Y. S. Amhis et al. (HFLAV Collaboration), Averages of -hadron, -hadron, and -lepton properties as of 2018, Eur. Phys. J. C 81, 226 (2021).
- N. Aghanim et al. (Planck Collaboration), Planck 2018 results. VI. Cosmological parameters, Astron. Astrophys. 641, A6 (2020).
- G. Aad et al. (ATLAS Collaboration), Search for supersymmetry in events with four or more charged leptons in of collisions with the ATLAS detector, J. High Energy Phys. 07 (2021) 167.
- V. Khachatryan et al. (CMS Collaboration), Searches for -parity-violating supersymmetry in at in final states with 0-4 leptons, Phys. Rev. D 94, 112009 (2016).
- S. Chatrchyan et al. (CMS Collaboration), Search for top squarks in -parity-violating supersymmetry using three or more leptons and -tagged jets, Phys. Rev. Lett. 111, 221801 (2013).
- G. Aad et al. (ATLAS Collaboration), Search for direct production of winos and Higgsinos in events with two same-charge leptons or three leptons in pp collision data at with the ATLAS detector, J. High Energy Phys. 11 (2023) 150.
- M. Aaboud et al. (ATLAS Collaboration), Search for -parity-violating top squarks in collisions with the ATLAS experiment, Phys. Rev. D 97, 032003 (2018).
- G. Aad et al. (ATLAS Collaboration), A search for -parity violating supersymmetric decays of the top squark to a -jet and a lepton in collisions with the ATLAS detector, Phys. Rev. D 110, 092004 (2024).
- A. M. Sirunyan et al. (CMS Collaboration), Search for additional neutral MSSM Higgs bosons in the final state in proton-proton collisions at , J. High Energy Phys. 09 (2018) 007.
- G. Aad et al. (ATLAS Collaboration), Search for heavy Higgs bosons decaying into two tau leptons with the ATLAS detector using collisions at , Phys. Rev. Lett. 125, 051801 (2020).
- F. Staub, sarah, arXiv:0806.0538.
- F. Staub, Automatic Calculation of supersymmetric renormalization group equations and self energies, Comput. Phys. Commun. 182, 808 (2011).
- F. Staub, Exploring new models in all detail with sarah, Adv. High Energy Phys. 2015, 840780 (2015).
- W. Porod, spheno, a program for calculating supersymmetric spectra, SUSY particle decays and SUSY particle production at e+ e- colliders, Comput. Phys. Commun. 153, 275 (2003).
- W. Porod and F. Staub, spheno 3.1: Extensions including flavour, -phases and models beyond the MSSM, Comput. Phys. Commun. 183, 2458 (2012).
- W. Porod, F. Staub, and A. Vicente, A flavor kit for BSM models, Eur. Phys. J. C 74, 2992 (2014).
- D. Foreman-Mackey, D. W. Hogg, D. Lang, and J. Goodman, emcee: The mcmc hammer, Publ. Astron. Soc. Pac. 125, 306 (2013).
- R. L. Workman et al. (Particle Data Group), Review of particle physics, Prog. Theor. Exp. Phys. 2022, 083C01 (2022).
- Auxialliary Collaboration, Auxialliary material of arxiv:2011.10543, http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2018-36, 2021.
- J. Alwall, R. Frederix, S. Frixione, V. Hirschi, F. Maltoni, O. Mattelaer, H.-S. Shao, T. Stelzer, P. Torrielli, and M. Zaro, The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations, J. High Energy Phys. 07 (2014) 079.
- J. de Favereau, C. Delaere, P. Demin, A. Giammanco, V. Lemaître, A. Mertens, and M. Selvaggi (DELPHES 3 Collaboration), delphes 3, A modular framework for fast simulation of a generic collider experiment, J. High Energy Phys. 02 (2014) 057.
- B. Fuks, M. Klasen, D. R. Lamprea, and M. Rothering, Gaugino production in proton-proton collisions at a center-of-mass energy of 8 TeV, J. High Energy Phys. 10 (2012) 081.
- B. Fuks, M. Klasen, D. R. Lamprea, and M. Rothering, Precision predictions for electroweak superpartner production at hadron colliders with Resummino, Eur. Phys. J. C 73, 2480 (2013).