Scalar quark searches in e+e- collisions at √s = 181 - 184 GeV

Searches for scalar top, scalar bottom and degenerate scalar quarks have been performed with data collected with the ALEPH detector at LEP. The data sample consists of 57 pb−1 taken at s = 181–184 GeV. No evidence for scalar top, scalar bottom or degenerate scalar quarks was found in the channels t̃...

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Main Authors: BARATE, R.; et al., THULASIDAS, M.
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Language:English
Published: Institutional Knowledge at Singapore Management University 1998
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Online Access:https://ink.library.smu.edu.sg/sis_research/5784
https://ink.library.smu.edu.sg/context/sis_research/article/6787/viewcontent/ep_98_076.pdf
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spelling sg-smu-ink.sis_research-67872021-02-25T09:48:44Z Scalar quark searches in e+e- collisions at √s = 181 - 184 GeV BARATE, R.; et al., THULASIDAS, M. Searches for scalar top, scalar bottom and degenerate scalar quarks have been performed with data collected with the ALEPH detector at LEP. The data sample consists of 57 pb−1 taken at s = 181–184 GeV. No evidence for scalar top, scalar bottom or degenerate scalar quarks was found in the channels t̃→cχ, t̃→bℓν̃, b̃→bχ, and q̃→qχ. From the channel t̃→cχ a limit of 74 GeV/c2has been set on the scalar top quark mass, independent of the mixing angle. This limit assumes a mass difference between the t̃ and the χ in the range 10–40 GeV/c2. From the channel t̃→bℓν̃ the mixing-angle-independent scalar top limit is 82 GeV/c2, assuming mt̃−mν̃ > 10 GeV/c2. From the channel b̃→bχ, a limit of 79 GeV/c2has been set on the mass of the supersymmetric partner of the left-handed state of the bottom quark. This limit is valid for mb̃−mχ > 10 GeV/c2. From the channel q̃→qχ, a limit of 87 GeV/c2has been set on the mass of supersymmetric partners of light quarks assuming five degenerate flavours and the production of both “left-handed” and “right-handed” squarks. This limit is valid for mq̃−mχ > 5 GeV/c2. 1998-08-01T07:00:00Z text application/pdf https://ink.library.smu.edu.sg/sis_research/5784 info:doi/10.1016/S0370-2693(98)00662-5 https://ink.library.smu.edu.sg/context/sis_research/article/6787/viewcontent/ep_98_076.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Computer Engineering Databases and Information Systems
institution Singapore Management University
building SMU Libraries
continent Asia
country Singapore
Singapore
content_provider SMU Libraries
collection InK@SMU
language English
topic Computer Engineering
Databases and Information Systems
spellingShingle Computer Engineering
Databases and Information Systems
BARATE, R.; et al.,
THULASIDAS, M.
Scalar quark searches in e+e- collisions at √s = 181 - 184 GeV
description Searches for scalar top, scalar bottom and degenerate scalar quarks have been performed with data collected with the ALEPH detector at LEP. The data sample consists of 57 pb−1 taken at s = 181–184 GeV. No evidence for scalar top, scalar bottom or degenerate scalar quarks was found in the channels t̃→cχ, t̃→bℓν̃, b̃→bχ, and q̃→qχ. From the channel t̃→cχ a limit of 74 GeV/c2has been set on the scalar top quark mass, independent of the mixing angle. This limit assumes a mass difference between the t̃ and the χ in the range 10–40 GeV/c2. From the channel t̃→bℓν̃ the mixing-angle-independent scalar top limit is 82 GeV/c2, assuming mt̃−mν̃ > 10 GeV/c2. From the channel b̃→bχ, a limit of 79 GeV/c2has been set on the mass of the supersymmetric partner of the left-handed state of the bottom quark. This limit is valid for mb̃−mχ > 10 GeV/c2. From the channel q̃→qχ, a limit of 87 GeV/c2has been set on the mass of supersymmetric partners of light quarks assuming five degenerate flavours and the production of both “left-handed” and “right-handed” squarks. This limit is valid for mq̃−mχ > 5 GeV/c2.
format text
author BARATE, R.; et al.,
THULASIDAS, M.
author_facet BARATE, R.; et al.,
THULASIDAS, M.
author_sort BARATE, R.; et al.,
title Scalar quark searches in e+e- collisions at √s = 181 - 184 GeV
title_short Scalar quark searches in e+e- collisions at √s = 181 - 184 GeV
title_full Scalar quark searches in e+e- collisions at √s = 181 - 184 GeV
title_fullStr Scalar quark searches in e+e- collisions at √s = 181 - 184 GeV
title_full_unstemmed Scalar quark searches in e+e- collisions at √s = 181 - 184 GeV
title_sort scalar quark searches in e+e- collisions at √s = 181 - 184 gev
publisher Institutional Knowledge at Singapore Management University
publishDate 1998
url https://ink.library.smu.edu.sg/sis_research/5784
https://ink.library.smu.edu.sg/context/sis_research/article/6787/viewcontent/ep_98_076.pdf
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