Searches for scalar top and scalar bottom quarks at LEP-2

UNSPECIFIED (1997) Searches for scalar top and scalar bottom quarks at LEP-2. Physics Letters B, 413 (3-4). pp. 431-446. ISSN 0370-2693

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Abstract

Searches for scalar top and bottom quarks have been performed with data collected by the ALEPH detector at LEP. The data sample consists of 21.7 pb−1 taken at , and 5.7 pb−1 taken at . No evidence for scalar top quarks or scalar bottom quarks was found in the channels → cχ, → bℓ, and → bχ. For the channel → cχ a limit of 67 GeV/c2 has been set on the scalar top quark mass, independent of the mixing angle between the supersymmetric partners of the left and right-handed states of the top quark. This limit assumes a mass difference between the and the χ of at least 10 GeV/c2. For the channel → bℓ the mixing-angle independent scalar top limit is 70 GeV/c2, assuming a mass difference between the and the of at least 10 GeV/c2. For the channel → bχ, a limit of 73 GeV/c2 has been set on the mass of the supersymmetric partner of the left-handed state of the bottom quark. This limit is valid if the mass difference between the and the χ is at least 10 GeV/c2.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
?? nuclear and high energy physics ??
ID Code:
64008
Deposited By:
Deposited On:
14 May 2013 15:04
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 13:51