Missing momentum reconstruction and spin measurements at hadron colliders
نویسندگان
چکیده
منابع مشابه
Transverse-momentum Resummation at Hadron Colliders *
The inclusive production of colourless high-mass systems in hadron collisions is important for physics studies within and beyond the standard model. Well know examples of these processes are the production of lepton pairs, vector boson pairs, Higgs particles and so forth. These processes are either benchmark processes, whose expected rates should be precisely known, or irreducible backgrounds f...
متن کاملSpin-Spin Correlations of Top Quark Pairs at Hadron Colliders
Top quark pairs are produced with strongly correlated spins in the partonic reactions qq̄ → tt̄ and gg → tt̄. A complete description of these effects in terms of the spin density matrix of the tt̄ system in leading order QCD is given. We further discuss the prospects to observe the spin-spin correlations at pp̄ and pp colliders by measuring suitable angular correlations among the t and t̄ decay produ...
متن کاملTransverse-momentum resummation for top-quark pairs at hadron colliders.
We develop a framework for a systematic resummation of the transverse momentum distribution of top-quark pairs produced at hadron colliders based on effective field theory. Compared to Drell-Yan and Higgs production, a novel soft function matrix is required to account for the soft gluon emissions from the final states. We calculate this soft function at the next-to-leading order, and perform th...
متن کاملSpin Correlation in Top-Quark Production at Hadron Colliders
We propose techniques to observe the correlation of the spins of top quarks and antiquarks at the Tevatron and the LHC. Observation of the spin correlation would confirm that the top quark decays before its spin flips, and would place a lower bound on the top-quark width and Vtb. The spin correlation may also be a useful tool to study the weak decay amplitude of the top quark.
متن کاملInvestigation of Top quark spin correlations at hadron colliders
We report on our results about hadronic tt̄ production at NLO QCD including t, t̄ spin effects, especially on tt̄ spin correlations.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2010
ISSN: 1029-8479
DOI: 10.1007/jhep11(2010)122