scholarly journals Top squark mass: current limits revisited and new limits from Tevatron Run-I

2004 ◽  
Vol 596 (3-4) ◽  
pp. 293-300 ◽  
Author(s):  
Siba Prasad Das ◽  
Amitava Datta ◽  
Manas Maity
Keyword(s):  
2016 ◽  
Vol 760 ◽  
pp. 178-201 ◽  
Author(s):  
V. Khachatryan ◽  
A.M. Sirunyan ◽  
A. Tumasyan ◽  
W. Adam ◽  
E. Asilar ◽  
...  

2013 ◽  
Vol 87 (9) ◽  
Author(s):  
Bhaskar Dutta ◽  
Teruki Kamon ◽  
Nikolay Kolev ◽  
Kuver Sinha ◽  
Kechen Wang ◽  
...  

1998 ◽  
Vol 13 (24) ◽  
pp. 1987-1996 ◽  
Author(s):  
L. CLAVELLI ◽  
P. W. COULTER ◽  
LEVAN R. SURGULADZE

Depending on their masses, supersymmetric particles can affect various measurements in Z decay. Among these are the total width (or consequent extracted value of αs), enhancement or suppression of various flavors, and left–right and forward–backward asymmetries. The latter depend on squark mass splittings and are, therefore, a possible test of the supergravity related predictions. We calculate leading order corrections for these quantities considering in particular the case of light photino and gluino where the SUSY effects are enhanced. In this limit the effect on αs is appreciable, the effect on Rb is small, and the effect on the asymmetries is extremely small.


1999 ◽  
Vol 14 (14) ◽  
pp. 2239-2255 ◽  
Author(s):  
ASESHKRISHNA DATTA ◽  
MONORANJAN GUCHAIT ◽  
KYOUNG KEUN JEONG

In minimal-supergravity-based supersymmetry models the charged sleptons as well as the sneutrinos may be lighter than the squarks. In such a light slepton scenario search for the lighter stop squark has been investigated in the dilepton + missing pT[Formula: see text](≥ 1) channel at Tevatron. In this scenario semileptonic decay of the lighter stop squark has been considered via off-shell and on-shell charginos. In the latter case the chargino undergoes pure leptonic two-body decay. We observe that for some favorable region of the MSSM parameter space one can probe the lighter stop squark mass up to 140 GeV with few events in the present data set for which the luminosity is 110 pb -1. At the MI upgrade one is likely to end up with more events.


2002 ◽  
Vol 65 (7) ◽  
Author(s):  
Hou Hong-Sheng ◽  
Ma Wen-Gan ◽  
Wan Lang-Hui ◽  
Zhang Ren-You

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