Real-time dynamics of axion particle production due to spontaneous decay of a coherent axion field
Journal Article
·
· Physical Review. D.
- Fudan Univ., Shanghai (China)
- Stony Brook Univ., NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
We show that the coherent axion field spontaneously decays by emitting axion particles via quantum tunneling if axion potential has more than one minimum. By employing the ℏ expansion and mean field approximation, we develop a formalism to trace the real-time dynamics of the axion particle production including its backreaction to the coherent axion field. We also present numerical results for the time evolution of various physical quantities including the strength of the coherent axion field, phase-space density of produced axion particles, energy density, and pressure. Phenomenological implications of our results are also discussed.
- Research Organization:
- State Univ. of New York (SUNY), Albany, NY (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); Stony Brook Univ., NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Nuclear Physics (NP)
- Grant/Contract Number:
- SC0017662; AC02-98CH10886; FG02-88ER40388; 11847206; 11535012; 11675041; FG-88ER40388; SC-0017662
- OSTI ID:
- 1591696
- Alternate ID(s):
- OSTI ID: 1803137; OSTI ID: 2280534
- Journal Information:
- Physical Review. D., Vol. 101, Issue 1; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 3 works
Citation information provided by
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Web of Science
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