We present results of a search for anomalous production of events containing a charged lepton (l, either e or mu) and a photon (gamma), both with high transverse momentum, accompanied by additional signatures X, including missing transverse energy (MET) and additional leptons and photons. We use the same selection criteria as in a previous CDF search but with a substantially larger data set, 305 pb(-1), a p (p) over bar collision energy of 1.96 TeV, and the CDF II detector. We find 42 l gamma MET events versus an expectation of 37.3 +/- 5.4 events. We observe 31 ll gamma+X events versus an expectation of 23.0 +/- 2.7 events. We find no events similar to the run I e e gamma gamma MET event.

Search for new physics in lepton plus photon plus X events with 305 pb(-1) of p(p)over-bar collisions at root s=1.96 TeV

CIOCCI, MARIA AGNESE;DONATI, SIMONE;
2006-01-01

Abstract

We present results of a search for anomalous production of events containing a charged lepton (l, either e or mu) and a photon (gamma), both with high transverse momentum, accompanied by additional signatures X, including missing transverse energy (MET) and additional leptons and photons. We use the same selection criteria as in a previous CDF search but with a substantially larger data set, 305 pb(-1), a p (p) over bar collision energy of 1.96 TeV, and the CDF II detector. We find 42 l gamma MET events versus an expectation of 37.3 +/- 5.4 events. We observe 31 ll gamma+X events versus an expectation of 23.0 +/- 2.7 events. We find no events similar to the run I e e gamma gamma MET event.
2006
A., Abulencia; D., Acosta; J., Adelman; T., Affolder; T., Akimoto; M. G., Albrow; D., Ambrose; S., Amerio; D., Amidei; A., Anastassov; K., Anikeev; A....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/828797
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