We present results of a search for anomalous production of events containing a charged lepton (ℓ, either e or μ) and a photon (γ), both with high transverse momentum, accompanied by additional signatures X, including missing transverse energy (E̸T) 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 pp̅ collision energy of 1.96 TeV, and the CDF II detector. We find 42 ℓγE̸T events versus an expectation of 37.3±5.4 events. We observe 31 ℓℓγ+X events versus an expectation of 23.0±2.7 events. We find no events similar to the run I eeγγE̸T event.

T. AALTONEN, B.ALVAREZ GONZALEZV, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2006). Search for New Physics in Lepton+Photon+X Events with 305   pb-1 of pp̅ Collisions at √s=1.96   TeV. PHYSICAL REVIEW LETTERS, 97, 031801-1-031801-7 [10.1103/PhysRevLett.97.031801].

Search for New Physics in Lepton+Photon+X Events with 305   pb-1 of pp̅ Collisions at √s=1.96   TeV

BRIGLIADORI, LUCA;CASTRO, ANDREA;MOGGI, NICCOLO';MUSSINI, MANUEL;ZUCCHELLI, STEFANO
2006

Abstract

We present results of a search for anomalous production of events containing a charged lepton (ℓ, either e or μ) and a photon (γ), both with high transverse momentum, accompanied by additional signatures X, including missing transverse energy (E̸T) 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 pp̅ collision energy of 1.96 TeV, and the CDF II detector. We find 42 ℓγE̸T events versus an expectation of 37.3±5.4 events. We observe 31 ℓℓγ+X events versus an expectation of 23.0±2.7 events. We find no events similar to the run I eeγγE̸T event.
2006
T. AALTONEN, B.ALVAREZ GONZALEZV, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2006). Search for New Physics in Lepton+Photon+X Events with 305   pb-1 of pp̅ Collisions at √s=1.96   TeV. PHYSICAL REVIEW LETTERS, 97, 031801-1-031801-7 [10.1103/PhysRevLett.97.031801].
T. AALTONEN; B.ALVAREZ GONZALEZV; S. AMERIO; D. AMIDEI; A. ANASTASSOV; A. ANNOVI; J. ANTOS; G. APOLLINARI; J.A. APPEL; A. APRESYAN; T. ARISAWA; A. ART...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/130343
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