Link between antimatter and dark matter probed

Journal Article · Tue Nov 12 23:00:00 EST 2019 · Nature (London)

DOI:https://doi.org/10.1038/d41586-019-03431-5· OSTI ID:1838255

Carosi, Gianpaolo ^[1]

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1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Two of the most intriguing mysteries in modern cosmology are the apparent preponderance of ordinary matter over antimatter and the nature of dark matter, which accounts for about 85% of the mass in the Universe. Here, dark matter has made its presence known only through its gravitational effects on astrophysical objects. Therefore, whatever type of particle it is made of must have feeble interactions with other matter. One leading candidate is the axion — a light neutral particle that was originally postulated to explain why the neutron lacks a measurable electric dipole moment.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• Grant/Contract Number: AC52-07NA27344
• OSTI ID: 1838255
• Report Number(s): LLNL-JRNL--829884; 999725
• Journal Information: Nature (London), Journal Name: Nature (London) Journal Issue: 7782 Vol. 575; ISSN 0028-0836
• Publisher: Nature Publishing Group
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS