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10 lines
458 B
10 lines
458 B
\midheading{$Z+c{\bar c}$ production ($m_c=0$), process 56}
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\label{subsec:zccmassless}
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Process {\tt 56} is the equivalent of {\tt 51}, with the bottom quarks
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replaced by charm. Although the charm mass is neglected, the calculation
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contains diagrams with two gluons in the initial state and a
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$Z$ coupling to the heavy quark line -- hence the dependence upon the quark
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flavour.
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When {\tt removebr} is true in process {\tt 56}, the $Z$ boson does not decay.
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