#norelated * Study of Hyperon Resonances below KbarN threshold via the (K-,n) reaction on deuteron [#hae650aa] //このページは、ページを指定しない時に表示されます。 //あなたのサイトに合わせ、自由に編集してください :) ((安易なSPAMやいたずらを防止するため、テーマや目的などの説明を加えた後、忘れずに凍結して下さい。パスワードの変更もお忘れなく!)) ** Introduction [#oc2fcf3e] - Structure of Λ(1405) ~The Λ(1405) hyperon is a well-known hyperon resonance with the mass, width and spin-parity of 1405.1+1.3-1.0 MeV/c2, 50 MeV, and 1/2-, which is located just below the KbarN threshold. There is a long-standing puzzle whether the Λ(1405) is a KbarN bound state or not. - What we measure/How we measure? //#ref(reaction.png,right,wrap,around) ~We propose an experiment at the J-PARC K1.8BR beam line to study the Λ(1405) hyperon via the (K-,n) reaction on deuteron, where a 1 GeV/c kaon is incident on the deuteron target knocking out a neutron at the forward angle and a recoiled kaon can be scattered with a residual nucleon to form the Λ(1405). ~The d(K-,n) reaction populates both the isospin states of '''I=0''' and '''I=1'''. All the decay final states of Λ(1405), Σ-π+, Σ+π-, and Σ0π0 are identified in order to decompose the isospin amplitude in the reaction. ** Collaboration [#dfcfe96a] -This activity is based on the collaborative research at J-PARC. ** Activity [#z876a7d9] - [[Beam Line]] -- - [[Spectrometer]] -- [[Backward Proton Chamber(BPC)>Spectrometer#BPC]] -- [[Backward Proton Detector(BPD)>Spectrometer#BPD]] - [[Target]] ** Event [#qf2c0d5d] ** Document [#v9783986] - [[PAC/Review]] - [[Conference/Symposium/Workshop]] - [[Publication]] - [[Others]]