The NNbar Experiment at the European Spallation Source

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Abstract

The observation of neutron to antineutron oscillation would be the first experimental evidence to show that baryon number is not a conserved quantity. It also provides an answer to the hypothesized post-sphaleron baryogenesis mechanism shortly after the Big Bang. The free oscillation time τn → n has a lower limit at 8.7×107 seconds determined at ILL in 1994. Current beyond Standard Model theories of this oscillation time estimate the value to be on the order of 1010 seconds. A new experiment is proposed at the European Spallation Source that has 1000 times the sensitivity of the previous experiment, and would confirm the viability of those beyond Standard Model theories.

Original languageEnglish
Title of host publicationProceedings of the Seventh Meeting on CPT and Lorentz Symmetry
EditorsV. Alan Kostelecky
PublisherWorld Scientific
Pages265-267
Number of pages3
ISBN (Print)9789813148499
DOIs
StatePublished - 2017
Externally publishedYes
Event7th Meeting on CPT and Lorentz Symmetry, CPT 2016 - Bloomington, United States
Duration: Jun 20 2016Jun 24 2016

Publication series

NameProceedings of the 7th Meeting on CPT and Lorentz Symmetry, 2016
Volume0

Conference

Conference7th Meeting on CPT and Lorentz Symmetry, CPT 2016
Country/TerritoryUnited States
CityBloomington
Period06/20/1606/24/16

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