Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Search for scalar quarks in $e^+ e^-$ collisions at $s$ up to 209-GeV
AU - ALEPH Collaboration, The
AU - Heister, A.
AU - Bouhova-Thacker, Evelina
AU - Bowdery, Christopher
AU - Finch, Alexander
AU - Foster, Frank
AU - Hughes, Gareth
AU - Jones, Roger
AU - Smizanska, Maria
PY - 2002/6/13
Y1 - 2002/6/13
N2 - Searches for scalar top, scalar bottom and mass-degenerate scalar quarks are performed in the data collected by the ALEPH detector at LEP, at centre-of-mass energies up to 209 GeV, corresponding to an integrated luminosity of 675 pb−1. No evidence for the production of such particles is found in the decay channels , , , or in the stop four-body decay channel studied for the first time at LEP. The results of these searches yield improved mass lower limits. In particular, an absolute lower limit of 63 GeV/c2 is obtained for the stop mass, at 95% confidence level, irrespective of the stop lifetime and decay branching ratios.
AB - Searches for scalar top, scalar bottom and mass-degenerate scalar quarks are performed in the data collected by the ALEPH detector at LEP, at centre-of-mass energies up to 209 GeV, corresponding to an integrated luminosity of 675 pb−1. No evidence for the production of such particles is found in the decay channels , , , or in the stop four-body decay channel studied for the first time at LEP. The results of these searches yield improved mass lower limits. In particular, an absolute lower limit of 63 GeV/c2 is obtained for the stop mass, at 95% confidence level, irrespective of the stop lifetime and decay branching ratios.
U2 - 10.1016/S0370-2693(02)01827-0
DO - 10.1016/S0370-2693(02)01827-0
M3 - Journal article
VL - 537
SP - 5
EP - 20
JO - Physics Letters B
JF - Physics Letters B
SN - 0370-2693
IS - 1-2
ER -