CDF_2010_S8591881_DY

Back to index

Deepak Kar and Rick Field's measurement of the underlying event in Drell-Yan events. $Z -> ee$ and $Z -> \mu\mu$ events are selected using a $Z$ mass window cut between 70 and 110 GeV. ``Toward'', ``away'' and ``transverse'' regions are defined in the same way as in the original (2001) CDF underlying event analysis. The reconstructed $Z$ defines the $\phi$ direction of the toward region. The leptons are ignored after the $Z$ has been reconstructed. Thus the region most sensitive to the underlying event is the toward region (the recoil jet is boosted into the away region).

⚓⌘ d01-x01-y01:

⚓⌘ d01-x01-y02:

⚓⌘ d01-x01-y03:

⚓⌘ d02-x01-y01:

⚓⌘ d02-x01-y02:

⚓⌘ d02-x01-y03:

⚓⌘ d03-x01-y01:

⚓⌘ d03-x01-y02:

⚓⌘ d03-x01-y03:

⚓⌘ d04-x01-y01:

⚓⌘ d04-x01-y02:

⚓⌘ d04-x01-y03:

⚓⌘ d05-x01-y01:

⚓⌘ d05-x01-y02:

⚓⌘ d06-x01-y01:

⚓⌘ d06-x01-y02:

⚓⌘ d07-x01-y01:

⚓⌘ d08-x01-y01:

⚓⌘ d09-x01-y01: