Y. Kamyshkov - Matter-antimatter transformation via neutron-antineutron oscillation: status review and new searches with cold neutrons
by
Yuri Kamyshkov(University of Tennesse)
→
Europe/Rome
Pontecorvo room (LNGS)
Pontecorvo room
LNGS
Description
Observation of violation of baryon number B is a crucial component for understanding of matter-antimatter asymmetry of the universe and the physics beyond the Standard Model. One perspective experimental approach for detection of baryon number violation is a search for matter to antimatter transformation using neutrons (Delta_B=2). I will review and comment on the interpretation of recent N-Nbar search results from Super-K and SNO; on unsatisfactory theoretical situation with the estimate of the intranuclear suppression of NNbar, and on advantages of NNbar search with free neutrons in vacuum. In particular, I will discuss a recent proposal to use a dedicated source of Very Cold Neutrons that can be built with Project X spallation target at Fermilab. In the new experiment the sensitivity of N-Nbar search can be increased from the present limits by 3 orders of magnitude. Due to the unique signature of the antineutron annihilation, in a backgroundless detector one observed event can be a discovery.
Yuri Kamyshkov
Professor
Department of Physics and Astronomy
University of Tennessee
Knoxville, TN
If available you can check seminar slides here on this INDICO event page. Complete LNGS seminar list (including slides) is also available at:
http://www.lngs.infn.it/lngs_infn/contents/lngs_en/research/experiments_scientific_info/conferences_seminars/seminars
