Search for Anomalous Kinematics of Top Dilepton Events in Proton - Anti-proton Collisions at S**(1/2)
Search for Anomalous Kinematics of Top Dilepton Events in Proton - Anti-proton Collisions at S**(1/2)

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Published: 2005

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The authors present a search for anomalous kinematics of t[bar t] dilepton events in p[bar p] collisions at [radical]s = 1.96 TeV using 193 pb[sup -1] of data collected with the CDF II detector. They developed a new a priori technique designed to isolate the subset in a data sample revealing the largest deviation from Standard Model expectations and to quantify the significance of this departure. In the four-variable space considered, no particular subset shows a significant discrepancy and they find that the probability to obtain a data sample less consistent with the Standard Model than what is observed is 1.0-4.5%.

Search for Anomalous Kinematics of Top Dilepton Events in Proton - Anti-proton Collisions at {u221A}s
Search for Anomalous Kinematics of Top Dilepton Events in Proton - Anti-proton Collisions at {u221A}s

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Published: 2004

Total Pages: 277

ISBN-13:

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The author presents a search for anomalous kinematics of t$ar{t}$ dilepton events in p$ar{p}$ collisions at √s = 1.96 TeV using 193 pb-1 of data collected with the CDF II detector. They developed a new a priori technique designed to silate the subset in a data sample revealing the largest deviation from Standard Model expectations and to quantify the significance of this departure. In the four-variable space considered, no particular subset shows a significant discrepancy and they find that the probability to obtain a data sample less consistent with the Standard Model than what is observed is 1.0-4.5%.

Top Physics
Top Physics

Author: D. Acosta

Publisher:

Published: 2004

Total Pages:

ISBN-13:

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We report on a search for anomalous kinematics of t{bar t} dilepton events in p{bar p} collisions at {radical}s = 1.96 TeV using 193 pb{sup -1} of data collected with the CDF II detector. We developed a new a priori technique designed to isolate the subset in a data sample revealing the largest deviation from standard model (SM) expectations and to quantify the significance of this departure. In the four-variable space considered, no particular subset shows a significant discrepancy and we find that the probability of obtaining a data sample less consistent with the SM than what is observed is 1.0-4.5%.

A Search for New Physics in Photon-lepton Events in Proton-antiproton Collisions At[radical] S
A Search for New Physics in Photon-lepton Events in Proton-antiproton Collisions At[radical] S

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Published: 2003

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We present the results of a search in p[bar p] collisions at[radical]s= 1.8 TeV for anomalous production of events containing a photon with large transverse energy and a lepton (e or[mu]) with large transverse energy, using 86 pb[sup -1] of data collected at the Collider Detector at Fermilab during the 1994-95 collider run at the Fermilab Tevatron. The presence of large missing transverse energy (E[sub T]), additional photons, or additional leptons in these events is also analyzed. The results are consistent with standard model expectations, with the possible exception of photon-lepton events with large E[sub T], for which the probability of a statistical fluctuation of the standard model expectation up to and above the observed level is 0.7%.