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 - INSPIRE

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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

D0

Collaboration

Mar, 2008

10 pages

Published in:

Phys.Lett.B 665 (2008) 1-8

e-Print:

0803.2263 [hep-ex]

DOI:

10.1016/j.physletb.2008.05.037

Report number:

FERMILAB-PUB-08-063-E

Experiments:

FNAL-E-0823

View in:

reference search95 citations

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Abstract: (Elsevier)

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.

Note:

10 pages, 5 figures, submitted to Physics Letters B

12.60.Jv
14.80.Ly
anti-p p: colliding beams
squark: top
squark: pair production
squark: decay
quark: charm
neutralino: LSP
final state: (2jet)
event shape analysis: planarity

References(22)

Figures(5)

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