Searching for Top Squark at Hadron Colliders

YANG Jin-Min; Young Bing-Lin

Chinese Physics C> 2002, Vol. 26> Issue(S1) : 25-33

Searching for Top Squark at Hadron Colliders

YANG Jin-Min ^, ,
Young Bing-Lin

Institute of Theoretical Physics, CAS, Beijing 100080, China2 Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA

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In this talk we briefly summarise our recent study (hep-ph/0007165) on searching for top squark at hadron colliders. The light top-squark (stop) if produced in hadron colliders in the form of the pair and decaying through the likely decay chain followed by , can mimic closely a top quark event when the mass of the stop is close to that of the top quark. Because of the much lower production rate, the stop event can be buried under the top quark event sample. In order to uncover the stop event, specific selection cuts need to be applied. Through Monte Carlo simulation with suitable kinematic cuts, we found that such stop event can be extracted from the top quark sample and detected by the top counting experiments in the upcoming upgraded Tevatron and LHC. However, because of the small statistics of the Run 1 of the Tevatron, the stop signal remains hidden at Run 1.

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YANG Jin-Min and Young Bing-Lin. Searching for Top Squark at Hadron Colliders[J]. Chinese Physics C, 2002, 26(S1): 25-33.

YANG Jin-Min and Young Bing-Lin. Searching for Top Squark at Hadron Colliders[J]. Chinese Physics C, 2002, 26(S1): 25-33. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Searching for Top Squark at Hadron Colliders

YANG Jin-Min ^,
Young Bing-Lin

Corresponding author: YANG Jin-Min,

Institute of Theoretical Physics, CAS, Beijing 100080, China2 Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 2002-06-24

Abstract: In this talk we briefly summarise our recent study (hep-ph/0007165) on searching for top squark at hadron colliders. The light top-squark (stop) if produced in hadron colliders in the form of the pair and decaying through the likely decay chain followed by , can mimic closely a top quark event when the mass of the stop is close to that of the top quark. Because of the much lower production rate, the stop event can be buried under the top quark event sample. In order to uncover the stop event, specific selection cuts need to be applied. Through Monte Carlo simulation with suitable kinematic cuts, we found that such stop event can be extracted from the top quark sample and detected by the top counting experiments in the upcoming upgraded Tevatron and LHC. However, because of the small statistics of the Run 1 of the Tevatron, the stop signal remains hidden at Run 1.