4.4 Article

Axion clockworks from heterotic M-theory: the QCD-axion and its ultra-light companion

Journal

JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 10, Pages -

Publisher

SPRINGER
DOI: 10.1007/JHEP10(2019)159

Keywords

Beyond Standard Model; M-Theory; Superstrings and Heterotic Strings; Field Theories in Higher Dimensions

Funding

  1. National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2017R1D1A1B06033701, 2019R1I1A1A01060680]
  2. Korea government (MSIP) [NRF-2018R1C1B3001379]
  3. National Science Centre, Poland [DEC-2015/18/M/ST2/00054, DEC-2016/23/G/ST2/04301]
  4. CERN Theory Department
  5. National Research Foundation of Korea [2019R1I1A1A01060680] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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A previously discussed clockwork mechanism within heterotic M-theory is applied to its axion landscape. We identify a unique candidate for a QCD-axion with a decay constant in the preferred axion window around 10(11) GeV. It is accompanied by at least one ultra-light axion that couples predominantly to hidden sector gauge groups.

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