The production rate and kinematics of photons produced in
association with Z bosons are studied using 2 fb-1 of p anti-p collision
data collected at the Collider Detector at Fermilab. The cross section
for p anti-p -> ell+ ell- gamma + X (where the leptons ell are
either muons or electrons with dilepton mass M_ell ell > 40 GeV/c2,
and where the photon has transverse energy Egamma_T > 7 GeV and is
well separated from the leptons) is 4.6 +/- 0.2(stat) +/- 0.3(syst)
+/- 0.3(lum) pb, which is consistent with standard model expectations.
We use the photon E(t) distribution from Z_gamma events where the Z
has decayed to mu+ mu-, e+ e-, or nu nu-bar to set limits on anomalous
(non-standard-model) trilinear couplings between photons and Z bosons.
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Updated: Friday, 2010 August 27 16:24:22 CDT automatically from input from Carol Picciolo