|
Title
|
|
|
|
Search for scalar bottom quarks from gluino decays in collisions at =1.96 TeV
|
|
|
Author
|
|
|
|
|
|
|
Institution/Organisation
|
|
|
|
CDF Collaboration
|
|
|
Abstract
|
|
|
|
| We searched for scalar bottom quarks in 156 pb-1 of p̅ p collisions at √s=1.96 TeV recorded by the Collider Detector at Fermilab 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±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 GeV/c2, respectively. |
|
|
|
Language
|
|
|
|
English
|
|
|
Source (journal)
|
|
|
|
Physical review letters. - New York, N.Y., 1958, currens
|
|
|
Publication
|
|
|
|
New York, N.Y.
:
American Physical Society
,
2006
|
|
|
ISSN
|
|
|
|
0031-9007
[print]
1079-7114
[online]
|
|
|
DOI
|
|
|
|
10.1103/PHYSREVLETT.96.171802
|
|
|
Volume/pages
|
|
|
|
96
:17
(2006)
, p. 171802,1-171802,7
|
|
|
ISI
|
|
|
|
000237321500009
|
|
|
Full text (Publisher's DOI)
|
|
|
|
|
|
|
Full text (open access)
|
|
|
|
|
|