期刊
PHYSICAL REVIEW LETTERS
卷 122, 期 17, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.172501
关键词
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资金
- Dutch Organization for Scientific Research (NWO) under program 156
- National Natural Science Foundation of China (NSFC) [11735003, 11775148]
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-FG02-04ER41338]
- European Union Research and Innovation program Horizon 2020 [654002]
We calculate the lifetime of the deuteron with dimension-nine quark operators that violate baryon number by two units. We construct an effective field theory for vertical bar Delta B vertical bar = 2 interactions that give rise to neutron-antineutron (n-(n) over bar) oscillations and dinucleon decay within a consistent power counting. We calculate the ratio of the deuteron lifetime to the square of the oscillation time up to next-to-leading order. Our result, which is analytical and has a quantified uncertainty, is smaller by a factor similar or equal to 2.5 than earlier estimates based on nuclear models, which impacts the indirect bound on the n-(n ) over bar oscillation time and future experiments. We discuss how combined measurements of n-(n) over bar oscillations and deuteron decay can help to identify the sources of baryon-number violation.
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