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Search for Large Extra Dimensions in the Production of Jets and Missing Transverse Energy in $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.96 TeV

CDF Collaboration

Abstract

We present the results of a search for new physics in the jets plus missing transverse energy data sample collected from 368 pb^{-1} of ppbar collisions at sqrt{s}=1.96 TeV recorded by the Collider Detector at Fermilab. We compare the number of events observed in the data with a data-based estimate of the Standard Model backgrounds contributing to this signature. We observe no significant excess of events, and we interpret this null result in terms of lower limits on the fundamental Planck scale for a large extra dimensions scenario.

Search for Large Extra Dimensions in the Production of Jets and Missing Transverse Energy in $p\bar{p}$ Collisions at $\sqrt{s}$ = 1.96 TeV

Abstract

We present the results of a search for new physics in the jets plus missing transverse energy data sample collected from 368 pb^{-1} of ppbar collisions at sqrt{s}=1.96 TeV recorded by the Collider Detector at Fermilab. We compare the number of events observed in the data with a data-based estimate of the Standard Model backgrounds contributing to this signature. We observe no significant excess of events, and we interpret this null result in terms of lower limits on the fundamental Planck scale for a large extra dimensions scenario.

Paper Structure

This paper contains 1 equation, 3 figures, 2 tables.

Figures (3)

  • Figure 1: $W$ and $Z$ Boson cross sections as a function of leading jet $E_T$.
  • Figure 2: Comparison of the event $\hbox{$\not\!\!{E}_{T}\,$}$ distribution for the 263 events in our candidate sample with the predicted SM distribution.
  • Figure 3: Comparison of 95% CL lower limits on $M_D$ based on the Run II CDF and Run I DØ results with LEP combined results.