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DOE OSTI · 3011134

Baryon number violation: from nuclear matrix elements to BSM physics

Broussard, Leah J. [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000191822808)·Crivellin, Andreas [Univ. of Zurich (Switzerland)] (ORCID:0000000264495845)·Hoferichter, Martin [Univ. of Bern (Switzerland)] (ORCID:0000000311139377)·Syritsyn, Sergey [Stony Brook Univ., NY (United States)] (ORCID:0000000311892940)·Aoki, Yasumichi [RIKEN Center for Computational Science, Kobe (Japan)] (ORCID:0000000340968836)·Barrow, Joshua L. [Univ. of Minnesota, Minneapolis, MN (United States)] (ORCID:0000000273193339)·Bas i Beneito, Arnau [Univ. of Valencia (Spain)] (ORCID:0000000194171430)·Berezhiani, Zurab [Univ. of L'Aquila (Italy); Istituto Nazionale di Fisica Nucleare (INFN) (Italy)] (ORCID:0000000241561686)·Calabria, Nicola Fulvio [Istituto Nazionale di Fisica Nucleare (INFN) (Italy)] (ORCID:0000000335902808)·Fajfer, Svjetlana [Univ. of Ljubljana (Slovenia); Jozef Stefan Inst. (IJS), Ljubljana (Slovenia)] (ORCID:0000000214857553)·Gardner, Susan [Univ. of Kentucky, Lexington, KY (United States)] (ORCID:0000000261665546)·Heeck, Julian [Univ. of Virginia, Charlottesville, VA (United States)] (ORCID:0000000326535962)·Jiang, Cailian [Nanjing Univ. (China)] (ORCID:0000000232800542)·Naterop, Luca [Univ. of Zurich (Switzerland); Paul Scherrer Inst. (PSI), Villigen (Switzerland)] (ORCID:0000000315861519)·Petrov, Alexey A. [Univ. of South Carolina, Columbia, SC (United States)] (ORCID:0000000249454463)·Shrock, Robert [Stony Brook Univ., NY (United States)] (ORCID:0000000165410893)·Thompson, Adrian [Northwestern Univ., Evanston, IL (United States)] (ORCID:0000000292350846)·van Kolck, Ubirajara [European Centre for Theoretical Studies in Nuclear Physics and Related Areas, Trento (Italy); Univ. Paris-Saclay, Orsay (France); Univ. of Arizona, Tucson, AZ (United States)] (ORCID:0000000157404047)·Wagman, Michael L. [Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)] (ORCID:0000000176701880)·Wan, Linyan [Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)] (ORCID:0000000155246137)·Womersley, John [Univ. of Edinburgh, Scotland (United Kingdom)] (ORCID:0009000226915981)·Yoo, Jun-Sik [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000162724790)
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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, 13–17 January 2025.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS73 NUCLEAR PHYSICS AND RADIATION PHYSICSBaryon number violationbaryon number violationeffective field theorylattice QCDneutron-antineutron oscillationnuclear matrix elementsproton decay

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Broussard, Leah J. [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)] (ORCID:0000000191822808), Crivellin, Andreas [Univ. of Zurich (Switzerland)] (ORCID:0000000264495845), Hoferichter, Martin [Univ. of Bern (Switzerland)] (ORCID:0000000311139377), Syritsyn, Sergey [Stony Brook Univ., NY (United States)] (ORCID:0000000311892940), Aoki, Yasumichi [RIKEN Center for Computational Science, Kobe (Japan)] (ORCID:0000000340968836), Barrow, Joshua L. [Univ. of Minnesota, Minneapolis, MN (United States)] (ORCID:0000000273193339), Bas i Beneito, Arnau [Univ. of Valencia (Spain)] (ORCID:0000000194171430), Berezhiani, Zurab [Univ. of L'Aquila (Italy); Istituto Nazionale di Fisica Nucleare (INFN) (Italy)] (ORCID:0000000241561686), Calabria, Nicola Fulvio [Istituto Nazionale di Fisica Nucleare (INFN) (Italy)] (ORCID:0000000335902808), Fajfer, Svjetlana [Univ. of Ljubljana (Slovenia); Jozef Stefan Inst. (IJS), Ljubljana (Slovenia)] (ORCID:0000000214857553), Gardner, Susan [Univ. of Kentucky, Lexington, KY (United States)] (ORCID:0000000261665546), Heeck, Julian [Univ. of Virginia, Charlottesville, VA (United States)] (ORCID:0000000326535962), Jiang, Cailian [Nanjing Univ. (China)] (ORCID:0000000232800542), Naterop, Luca [Univ. of Zurich (Switzerland); Paul Scherrer Inst. (PSI), Villigen (Switzerland)] (ORCID:0000000315861519), Petrov, Alexey A. [Univ. of South Carolina, Columbia, SC (United States)] (ORCID:0000000249454463), Shrock, Robert [Stony Brook Univ., NY (United States)] (ORCID:0000000165410893), Thompson, Adrian [Northwestern Univ., Evanston, IL (United States)] (ORCID:0000000292350846), van Kolck, Ubirajara [European Centre for Theoretical Studies in Nuclear Physics and Related Areas, Trento (Italy); Univ. Paris-Saclay, Orsay (France); Univ. of Arizona, Tucson, AZ (United States)] (ORCID:0000000157404047), Wagman, Michael L. [Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)] (ORCID:0000000176701880), Wan, Linyan [Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)] (ORCID:0000000155246137), Womersley, John [Univ. of Edinburgh, Scotland (United Kingdom)] (ORCID:0009000226915981), Yoo, Jun-Sik [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000162724790). 2025-08-07. Baryon number violation: from nuclear matrix elements to BSM physics. https://doi.org/10.1088/1361-6471%2Fadf081

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