{"id":308,"date":"2021-11-14T17:08:34","date_gmt":"2021-11-14T17:08:34","guid":{"rendered":"https:\/\/belle2.ijs.si\/public\/?page_id=308"},"modified":"2023-10-29T13:11:21","modified_gmt":"2023-10-29T13:11:21","slug":"light-quark-antiquark-events","status":"publish","type":"page","link":"https:\/\/belle2.ijs.si\/public\/home\/quark-colors\/examples\/light-quark-antiquark-events\/","title":{"rendered":"Light Quark\/Antiquark Events"},"content":{"rendered":"\n

There\u2019s a huge number of possible light quark\/antiquark events, so it makes sense to distinguish these from tauon\/antitauon events<\/a> and “heavy” b<\/em>-\/anti-b<\/em>-quark events<\/a>.<\/p>\n\n\n\n

In the case of three or four tracks<\/strong> one can use, that light don\u2019t characteristically decay
into one plus three tracks like the \ud835\uded5<\/strong>+<\/strong><\/sup>\ud835\uded5\u2212<\/sup> events<\/strong>. Additionally, they usually produce fewer neutrinos, so they typically have less missing energy<\/strong>. Furthermore, light quark\/antiquark processes are usually less straight<\/strong> than \ud835\uded5+<\/sup>\ud835\uded5\u2212<\/sup> events.<\/p>\n\n\n\n

In the case of five to eleven tracks<\/strong> one can distinguish light quark processes from those with heavy b<\/em>-quarks, because the light quark events are usually a lot straighter<\/strong> than b<\/em>-\/anti-b<\/em>-quark events. Why that is the case is the easiest to understand by considering the b<\/em>-\/anti-b<\/em>-quark production<\/a> which is explained on the corresponding page.<\/p>\n\n\n\n

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