Baryon-number violation by two units and the deuteron lifetime

Abstract

We calculate the lifetime of the deuteron with dimension-nine quark operators that violate baryon number by two units. We construct an effective field theory for $|\Delta B|=2$ interactions that give rise to neutron-antineutron ($n$-$\bar{n}$) oscillations and dinucleon decay within a consistent power counting. We calculate the ratio of the deuteron lifetime to the square of the $n$-$\bar{n}$ oscillation time up to next-to-leading order. Our result, which is analytical and has a quantified uncertainty, is smaller by a factor $\simeq 2.5$ than earlier estimates based on nuclear models, which impacts the indirect bound on he $n$-$\bar{n}$ oscillation time and future experiments. We discuss how combined measurements of $n$-$\bar{n}$ oscillations and deuteron decay can help to identify the sources of baryon-number violation.

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Cited by in corpus (26)

• Nuclear effective field theory: status and perspectives
• Nuclear matrix elements from lattice QCD for electroweak and beyond-Standard-Model processes
• Inclusive Nucleon Decay Searches as a Frontier of Baryon Number Violation
• New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the European Spallation Source
• Neutron-Antineutron Oscillation Search using a 0.37 Megaton$\cdot$Year Exposure of Super-Kamiokande
• Neutron Stars with Baryon Number Violation, Probing Dark Sectors
• Particle Physics at the European Spallation Source
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• Antiproton physics
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• Theoretical Analysis of Antineutron-Nucleus Data needed for Antineutron Mirrors in Neutron-Antineutron Oscillation Experiments
• Decays of a bino-like particle in the low-mass regime
• Perturbative Calculations of Deuteron Form Factors
• Baryon Number Violation: From Nuclear Matrix Elements to BSM Physics
• $\Delta B=2$ neutron decay into antiproton mode $n\to \bar{p}{e}^{+}\nu (\bar{\nu })$
• Renormalization of proton-proton fusion in chiral effective field theory
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• A New Model of Intranuclear Neutron-Antineutron Transformations in ${}_8^{16}$O
• The Decomposition of Neutron-Antineutron Oscillation Operators
• Effects of Neutron-Antineutron Transitions in Neutron Stars
• The Neutrinoless Double Beta Decay in the Colored Zee-Babu Model
• Renormalization of One-Pion Exchange in Higher Partial Waves in Chiral Effective Field Theory for Antinucleon-Nucleon System