Search for scalar top quarks in the acoplanar charm jets and missing transverse energy final state in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV

Tanasijczuk, Andres Jorge;D0;et.al.
(2008) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 665, p. 1 (2008)

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Abstract
We present a search for the pair production of scalar top quarks, t˜ , using 995 pb −1 of data collected in pp¯ collisions with the DØ detector at the Fermilab Tevatron Collider at s=1.96TeV . Both scalar top quarks are assumed to decay into a charm quark and a neutralino ( χ˜10 ), where χ˜10 is the lightest supersymmetric particle. This leads to a final state with two acoplanar charm jets and missing transverse energy. We find the yield of such events to be consistent with the standard model expectation, and exclude sets of t˜ and χ˜10 masses at the 95% C.L. that substantially extend the domain excluded by previous searches.
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Tanasijczuk, A. J., D0, & et al. (2008). Search for scalar top quarks in the acoplanar charm jets and missing transverse energy final state in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 665, 1. https://doi.org/10.1016/j.physletb.2008.05.037 (Original work published 2008)