By Andrew Chisholm
This thesis, which received one of many six 2015 ATLAS Thesis Awards, issues the research of the charmonium and bottomonium certain heavy quark sure states. the 1st portion of the thesis describes the remark of a candidate for the chi_b(3P) bottomonium states. This represented the 1st remark of a brand new particle on the LHC and its lifestyles was once thus proven by means of D0 and LHCb experiments. the second one a part of the thesis offers measurements of the instructed and non-prompt creation of the chi_c1 and chi_c2 charmonium states in proton-proton collisions. those measurements are in comparison to numerous theoretical predictions and will be used to notify the advance of theoretical versions of quarkonium production.
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