First Results from a Microwave Cavity Axion Search at
Journal Article
·
· Physical Review Letters
- Yale Univ., New Haven, CT (United States). Dept. of Physics
- Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering
- Univ. of Colorado, Boulder, CO (United States). Dept. of Physics; National Inst. of Standards and Technology (NIST), Boulder, CO (United States). JILA
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physics Division
In this paper, we report on the first results from a new microwave cavity search for dark matter axions with masses above . We exclude axion models with two-photon coupling over the range . These results represent two important achievements. First, we have reached cosmologically relevant sensitivity an order of magnitude higher in mass than any existing limits. Second and finally, by incorporating a dilution refrigerator and Josephson parametric amplifier, we have demonstrated total noise approaching the standard quantum limit for the first time in an axion search.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Yale Univ., New Haven, CT (United States); Univ. of California, Berkeley, CA (United States); Univ. of Colorado, Boulder, CO (United States); National Inst. of Standards and Technology (NIST), Boulder, CO (United States)
- Sponsoring Organization:
- USDOE; National Science Foundation (NSF); Heising-Simons Foundation (United States)
- Grant/Contract Number:
- AC52-07NA27344; PHY-1362305; PHY-1306729; 2014-181; 2014-182; 2014-183
- OSTI ID:
- 1458685
- Alternate ID(s):
- OSTI ID: 1343348
- Report Number(s):
- LLNL-JRNL-737876; 888246; TRN: US1901506
- Journal Information:
- Physical Review Letters, Vol. 118, Issue 6; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 189 works
Citation information provided by
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