{"id":69,"date":"2018-07-12T12:12:13","date_gmt":"2018-07-12T12:12:13","guid":{"rendered":"http:\/\/belle2.ijs.si\/public\/?page_id=69"},"modified":"2019-10-25T17:01:10","modified_gmt":"2019-10-25T17:01:10","slug":"exercise-8","status":"publish","type":"page","link":"https:\/\/belle2.ijs.si\/public\/exercise-8\/","title":{"rendered":"Exercise 8"},"content":{"rendered":"

Decay of B+ \u2192 J\/\u03c8 K+<\/h1>\n

Plot the mass distribution of a charged B which decays to a combination of J\/\u03c8 and K<\/p>\n

  <\/span>   <\/span>\"\[B^+ \longrightarrow J/\psi K^+\quad\text{or}\quad B^- \longrightarrow J/\psi K^-\]\"<\/p>\n

You will find a peak in the \"B^+\" mass at 5.28 \"\mathrm{GeV}/c^2\"<\/p>\n

Use the block ‘Combine 2 particles’ and describe the process in two stages.<\/p>\n

Be sure to select only the particles with a correct invariant mass of J\/\u03c8 for further analysis.<\/p>\n

http:\/\/belle2.ijs.si\/masterclass<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Decay of B+ \u2192 J\/\u03c8 K+ Plot the mass distribution of a charged B which decays to a combination of J\/\u03c8 and K     You will find a peak in the mass at 5.28 Use the block ‘Combine 2 particles’ and describe the process in two stages. Be sure to select only the particles […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-69","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/belle2.ijs.si\/public\/wp-json\/wp\/v2\/pages\/69","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/belle2.ijs.si\/public\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/belle2.ijs.si\/public\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/belle2.ijs.si\/public\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/belle2.ijs.si\/public\/wp-json\/wp\/v2\/comments?post=69"}],"version-history":[{"count":6,"href":"https:\/\/belle2.ijs.si\/public\/wp-json\/wp\/v2\/pages\/69\/revisions"}],"predecessor-version":[{"id":198,"href":"https:\/\/belle2.ijs.si\/public\/wp-json\/wp\/v2\/pages\/69\/revisions\/198"}],"wp:attachment":[{"href":"https:\/\/belle2.ijs.si\/public\/wp-json\/wp\/v2\/media?parent=69"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}