We report on a search for the process p (p) over bar -> gamma + W/Z with W/Z -> q (q) over bar in events containing two jets and a photon at the center-of-mass energy root s =1.96 TeV, using 184 pb(-1) of data collected by the CDF II detector. A neural network event selection has been developed to optimize the rejection of the large QCD production background; it is shown that this method gives a significant improvement in both signal-to-noise ratio and signal sensitivity, as compared with an event selection based on conventional cuts. An upper limit is presented for the gamma + W/Z production cross section with the W and Z decaying hadronically.

T., A., J., A., T., A., M. G., A., B. A., G., S., A., et al. (2009). Search for hadronic decays of W and Z bosons in photon events in p(p)over-bar collisions at root s=1.96 TeV. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 80, 052011-1-052011-17 [10.1103/PhysRevD.80.052011].

Search for hadronic decays of W and Z bosons in photon events in p(p)over-bar collisions at root s=1.96 TeV

CIOCCI, MARIA AGNESE;
2009-01-01

Abstract

We report on a search for the process p (p) over bar -> gamma + W/Z with W/Z -> q (q) over bar in events containing two jets and a photon at the center-of-mass energy root s =1.96 TeV, using 184 pb(-1) of data collected by the CDF II detector. A neural network event selection has been developed to optimize the rejection of the large QCD production background; it is shown that this method gives a significant improvement in both signal-to-noise ratio and signal sensitivity, as compared with an event selection based on conventional cuts. An upper limit is presented for the gamma + W/Z production cross section with the W and Z decaying hadronically.
2009
T., A., J., A., T., A., M. G., A., B. A., G., S., A., et al. (2009). Search for hadronic decays of W and Z bosons in photon events in p(p)over-bar collisions at root s=1.96 TeV. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 80, 052011-1-052011-17 [10.1103/PhysRevD.80.052011].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/38695
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