J-PARC E15 and E80 Experiments
-- A search for deeply-bound kaonic nuclear states
by the in-flight (K-,N) reaction --
Experimental Summary
The E15 experiment searches for the simplest anti-kaonic nuclear bound
state, K-pp cluster that consists of two protons and one anti-kaon, by
delivering secondary anti-kaon beam into Helium-3 (3He) target.
Existence of "anti-kaonic nuclear bound states" is theoretically
predicted as more compact and dense nuclear state than normal
nucleus. If such extra-ordinarily nuclei really exist we can produce
ultra-high density matter, like inside of neutron stars, in a
laboratory.
History
2006.6: proposal submission --> stage-1 approval [1st PAC]
2007.1: stage-2 approval [2nd PAC]
2009.1: completion of the beam-line spectrometer
2009.2: first beam to the K1.8BR beam-line [RUN#22]
2010.4: completion of the cylindrical detector system
2010.11: completion of the 3He-target system
2012.2: completion of beam-line commissioning for 1.0 GeV/c [RUN#40]
2012.4: completion of the neutron counter --> ready to run
2012.6: engineering run started with full set-up [RUN#43]
2013.3: 1st-production run [RUN#47]
2013.5: 1st-production run [RUN#49c]
2015.11-12: 2nd-production run [RUN#65]
more details
Collaborations
Proposal / PAC
Presentations
Publications
Internal Articles (Collaborator Only)
Links