Search for the production of scalar bottom quarks in <script type="math/tex">p\overline{p}</script> collisions at <script type="math/tex">\sqrt{s}</script>=1.96 TeV

Aaltonen, T.; Adelman, J.; Alvarez Gonzalez, B.; Van Remortel, N.; et al.

doi:10.1103/PHYSREVLETT.105.081802

Title

Search for the production of scalar bottom quarks in $p\overline{p}$ collisions at $\sqrt{s}$ =1.96 TeV

Author

Aaltonen, T.

Adelman, J.

Alvarez Gonzalez, B.

Van Remortel, N.

et al.

Institution/Organisation

CDF Collaboration

Abstract

We report on a search for direct scalar bottom quark (sbottom) pair production in p (p) over bar collisions at root s = 1.96 TeV, in events with large missing transverse energy and two jets of hadrons in the final state, where at least one of the jets is required to be identified as originating from a b quark. The study uses a collider detector at Fermilab Run II data sample corresponding to 2.65 fb(-1) of integrated luminosity. The data are in agreement with the standard model. In an R-parity conserving minimal supersymmetric scenario, and assuming that the sbottom decays exclusively into a bottom quark and a neutralino, 95% confidence-level upper limits on the sbottom pair production cross section of 0.1 pb are obtained. For neutralino masses below 70 GeV/c(2), sbottom masses up to 230 GeV/c(2) are excluded at 95% confidence level.

Language

English

Source (journal)

Physical review letters. - New York, N.Y., 1958, currens

Publication

New York, N.Y. : American Physical Society , 2010

ISSN

0031-9007 [print]

1079-7114 [online]

DOI

10.1103/PHYSREVLETT.105.081802

Volume/pages