منابع مشابه
Single Stop Production at Hadron Colliders
We analyze the production of a single top squark at hadron colliders: pp̄/pp → t̃1 + X. The total cross sections and the transverse momentum distributions are presented in next-toleading order QCD. The higher-order corrections render the predictions theoretically stable with respect to variations of the factorization and renormalization scales. The transverse momentum distribution is resummed to ...
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Stop particles are expected to be the lightest squarks in supersymmetric theories and the search for these particles is an important experimental task. We therefore present the cross sections for the production processes pp̄/pp → t̃1t1 and t̃2t2 at Tevatron and LHC energies in next-to-leading order supersymmetric QCD. The corrections stabilize the theoretical predictions for the cross sections, an...
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At hadron colliders, the search for R-parity violating supersymmetry can probe scalar masses beyond what is covered by pair production processes. We evaluate the next-toleading order SUSY-QCD corrections to the associated stop or sbottom production with a lepton through R-parity violating interactions. We show that higher order corrections render the theoretical predictions more stable with res...
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Leptoquarks can be produced in pairs by gluon–gluon fusion and quark–antiquark annihilation at hadron colliders. While HERA is the proper machine for single production of (eu) and (ed) type leptoquarks, the flavor species of (μu), (μd) and (τu), (τd) type leptoquarks can be produced at hadron colliders very efficiently. Besides exploiting gluon-quark collisions, leptoquarks can also be produced...
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Single-top-quark production probes the charged-current weak interaction of the top quark, and provides a direct measurement of the CKM matrix element Vtb. We perform two independent analyses to quantify the accuracy with which the W -gluon fusion (gq → tb̄q) and qq̄ → tb̄ signals can be extracted from the backgrounds at both the Tevatron and the LHC. Although perturbation theory breaks down at low...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2000
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(00)00873-x