کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10721848 | 1033636 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
T-odd quarks at the large hadron collider: 2010-2012
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
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چکیده انگلیسی
We study the potential of the current Large Hadron Collider (LHC) 7 TeV run to search for heavy, colored vector-like fermions, which are assumed to carry a conserved Z2 quantum number forcing them to be pair-produced. Each fermion is assumed to decay directly into a Standard Model quark and an invisible stable particle. T-odd quarks and the lightest T-odd particle (LTP) of the Littlest Higgs model with T-parity provide an example of this setup. We estimate the bounds based on the published CMS search for events with jets and missing transverse energy in the 35 pbâ1 data set collected in the 2010 run. We find that T-odd quark masses below about 450 GeV are ruled out for the LTP mass about 100 GeV. This bound is somewhat stronger than the published Tevatron constraint. We also estimate the reach with higher integrated luminosities expected in the 2011-2012 run. If no deviation from the SM is observed, we expect that a bound on the T-odd quark mass of about 650 GeV, for the LTP mass of 300 GeV and below, can be achieved with 1 fbâ1 of data. We comment on the possibility of using initial-state radiation jets to constrain the region with nearly-degenerate T-odd quark and LTP.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 704, Issue 5, 25 October 2011, Pages 510-514
Journal: Physics Letters B - Volume 704, Issue 5, 25 October 2011, Pages 510-514
نویسندگان
Maxim Perelstein, Jing Shao,