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Baryon Number Violation: From Nuclear Matrix Elements to BSM Physics

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arxiv 2504.16983 v2 pith:LKFZBRPJ submitted 2025-04-23 hep-ph hep-exhep-latnucl-exnucl-th

classification hep-phhep-exhep-latnucl-exnucl-th
keywords nuclearbaryonelementsmatrixnumberphysicstheorycurrent
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Processes that violate baryon number, most notably proton decay and $n\bar n$ transitions, are promising probes of physics beyond the Standard Model (BSM) needed to understand the lack of antimatter in the Universe. To interpret current and forthcoming experimental limits, theory input from nuclear matrix elements to UV complete models enters. Thus, an interplay of experiment, effective field theory, lattice QCD, and BSM model building is required to develop strategies to accurately extract information from current and future data and maximize the impact and sensitivity of next-generation experiments. Here, we briefly summarize the main results and discussions from the workshop "INT-25-91W: Baryon Number Violation: From Nuclear Matrix Elements to BSM Physics," held at the Institute for Nuclear Theory, University of Washington, Seattle, WA, January 13-17, 2025.

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Cited by 4 Pith papers

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

  1. EFT Pathways to $|\Delta B| =2$: Chiral Constructions and Phenomenology

    hep-ph 2026-04 unverdicted novelty 6.0 of 10

    A chiral EFT framework is constructed for |ΔB|=2 interactions that matches SMEFT operators to low-energy baryon processes and identifies new dinucleon decay channels sensitive to previously unconstrained operator structures.

  2. Searching for apparent baryon number violation in $\Lambda_c^+$ decays at the Super Tau-Charm Facility

    hep-ph 2026-04 unverdicted novelty 5.0 of 10

    STCF with 1 ab^{-1} can probe several-TeV new-physics scales in sterile-neutrino EFT and constrain an RPV SUSY parameter to ~0.1 TeV^{-2} for apparent BNV in unexplored Lambda_c+ channels.

  3. New Avenues for $|\Delta B|$ = 2 Processes Beyond Neutron-Antineutron Oscillations

    hep-ph 2025-11 conditional novelty 5.0 of 10

    Lambda-antilambda oscillations are already bounded far more strongly by Super-Kamiokande's pp→K+K+ limit (δmΛ ≲ 10^-32 GeV) than by BESIII's direct search, making dedicated oscillation searches non-competitive in the ...

  4. Comprehensive investigation of nucleon decays into one lepton plus two mesons

    hep-ph 2026-05 unverdicted novelty 4.0 of 10

    Using LEFT operators and chiral PT, the authors derive improved partial lifetime bounds for 31 three-body BNV nucleon decay modes by constraining Wilson coefficients from two-body experimental data.

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