skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A viable QCD axion in the MeV mass range

Abstract

The QCD axion is one of the most compelling solutions of the strong CP problem. There are major current efforts into searching for an ultralight, invisible axion, which is believed to be the only phenomenologically viable realization of the QCD axion. Visible axions with decay constants at or below the electroweak scale are believed to have been long excluded by laboratory searches. Considering the significance of the axion solution to the strong CP problem, we revisit experimental constraints on QCD axions in the O(10 MeV) mass window. In particular, we find a variant axion model that remains compatible with existing constraints. This model predicts new states at the GeV scale coupled hadronically, and a variety of low-energy axion signatures, such as rare meson decays, nuclear de-excitations via axion emission, and production in e +e - annihilation and fixed target experiments. This reopens the possibility of solving the strong CP problem at the GeV scale.

Authors:
ORCiD logo [1];  [2]
  1. New York Univ. (NYU), NY (United States). Center for Cosmology and Particle Physics. Dept. of Physics; Princeton Univ., NJ (United States). Dept. of Physics; Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. New York Univ. (NYU), NY (United States). Center for Cosmology and Particle Physics. Dept. of Physics
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); New York Univ. (NYU), NY (United States); Princeton Univ., NJ (United States)
Sponsoring Org.:
USDOE; LANL Laboratory Directed Research and Development (LDRD) Program; National Science Foundation (NSF)
OSTI Identifier:
1485404
Report Number(s):
LA-UR-17-29295
Journal ID: ISSN 1029-8479
Grant/Contract Number:  
89233218CNA000001; PHY-0947827; PHY-1316753; PHY- 0969510; PHYS-1066293
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 7; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; CP violation; chiral Lagrangians; kaon physics

Citation Formats

Alves, Daniele S. M., and Weiner, Neal. A viable QCD axion in the MeV mass range. United States: N. p., 2018. Web. doi:10.1007/JHEP07(2018)092.
Alves, Daniele S. M., & Weiner, Neal. A viable QCD axion in the MeV mass range. United States. doi:10.1007/JHEP07(2018)092.
Alves, Daniele S. M., and Weiner, Neal. Fri . "A viable QCD axion in the MeV mass range". United States. doi:10.1007/JHEP07(2018)092. https://www.osti.gov/servlets/purl/1485404.
@article{osti_1485404,
title = {A viable QCD axion in the MeV mass range},
author = {Alves, Daniele S. M. and Weiner, Neal},
abstractNote = {The QCD axion is one of the most compelling solutions of the strong CP problem. There are major current efforts into searching for an ultralight, invisible axion, which is believed to be the only phenomenologically viable realization of the QCD axion. Visible axions with decay constants at or below the electroweak scale are believed to have been long excluded by laboratory searches. Considering the significance of the axion solution to the strong CP problem, we revisit experimental constraints on QCD axions in the O(10 MeV) mass window. In particular, we find a variant axion model that remains compatible with existing constraints. This model predicts new states at the GeV scale coupled hadronically, and a variety of low-energy axion signatures, such as rare meson decays, nuclear de-excitations via axion emission, and production in e+e- annihilation and fixed target experiments. This reopens the possibility of solving the strong CP problem at the GeV scale.},
doi = {10.1007/JHEP07(2018)092},
journal = {Journal of High Energy Physics (Online)},
number = 7,
volume = 2018,
place = {United States},
year = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

Save / Share: