Baryon number nonconservation as Peccei-Quinn mechanism

Takahiro Ohata, Kengo Takeuchi, Koji Tsumura

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1 Citation (Scopus)


Baryon number is an accidental symmetry in the standard model, while Peccei-Quinn symmetry is hypothetical symmetry which is introduced to solve the strong CP problem. We study the possible connections between Peccei-Quinn symmetry and baryon number symmetry. In this framework, an axion is identified as the Nambu-Goldstone boson of baryon number violation. As a result, characteristic baryon number violating processes are predicted. We developed the general method to determine the baryon number and lepton number of new scalar in the axion model.

Original languageEnglish
Article number035026
JournalPhysical Review D
Issue number3
Publication statusPublished - Aug 1 2021

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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