A search for scalar bottom quarks from gluino decays in $\bar{p}p$ collisions at $\sqrt{s} =$ 1.96-TeV.

Abulencia, A.; Acosta, D.; Adelman, J.; Affolder, T.; Akimoto, T.; Albrow, M.G.; Ambrose, D.; Amerio, S.; Amidei, D.; Anastassov, A.

doi:10.1103/PhysRevLett.96.171802

A search for scalar bottom quarks from gluino decays in $\bar{p}p$ collisions at $\sqrt{s} =$ 1.96-TeV.

CDF

Collaboration

Dec, 2005

7 pages

Published in:

Phys.Rev.Lett. 96 (2006) 171802

e-Print:

hep-ex/0512072 [hep-ex]

DOI:

10.1103/PhysRevLett.96.171802

Report number:

FERMILAB-PUB-05-553-E

Experiments:

FNAL-E-0830

View in:

pdf

reference search17 citations

Citations per year

Abstract: (arXiv)

We searched for scalar bottom quarks in 156 pb

^{-1}

of {\bf

\bar{p}p

} collisions at {\bf

\sqrt{s}=1.96

} TeV recorded by the CDF II experiment at the Tevatron. Scalar bottom quarks can be produced from gluino decays in R-parity conserving models of supersymmetry when the mass of the gluino exceeds that of the scalar bottom quark. Then, a scalar bottom quark can decay into a bottom quark and a neutralino. To search for this scenario, we investigated events with large missing transverse energy and at least three jets, two or more of which were identified as containing a secondary vertex from the hadronization of

b

quarks. We found four candidate events, where

2.6\pm 0.7

are expected from standard model processes, and placed 95% confidence level lower limits on gluino and scalar bottom quark masses of up to 280 and 240\gevm, respectively.

13.85.Rm
14.80.Ly
12.60.Jv
proton-proton inclusive interactions
elementary particle jets
quark decay
standard model
conservation laws
high-energy elementary particle interactions
sparticles

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A search for scalar bottom quarks from gluino decays in pˉp\bar{p}ppˉ​p collisions at s=\sqrt{s} =s​= 1.96-TeV.

Citations per year

A search for scalar bottom quarks from gluino decays in $\bar{p}p$ collisions at $\sqrt{s} =$ 1.96-TeV.