Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 10, Pages -Publisher
SPRINGER
DOI: 10.1088/1126-6708/2008/10/025
Keywords
Jets; Beyond Standard Model; Hadronic Colliders; Spin and Polarization Effects
Categories
Funding
- Science Research, Ministry of Education, Culture, Sports, Science and Technology, Japan [16081207, 18340060]
- World Premier International Research Center Initiative (WPI Program)
- MEXT, Japan
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In the Littlest Higgs model with T-parity (LHT), top-partners (T_) are produced in pairs at the Large Hadron Collider (LHC). Each top-partner decays into a top quark (t) and the lightest T-odd gauge partner A(H). We demonstrate reconstruction of the t (t) over bar system decaying hadronically, and measurement of the top-partner mass from the m T 2 distribution. A top quark from a T_ decay is polarized, and we discuss the effect of this polarization on the decay distributions. Because the events consist of highly collinear jets which occasionally overlap each other, we compare distributions using different jet reconstruction algorithms (Snowmass cone, kt, Cambridge, SISCone). We find clustering algorithms are advantageous for studying top polarization effects.
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