One-loop electroweak effects on stop-chargino production at LHC
نویسندگان
چکیده
M. Beccaria, G. Macorini, E. Mirabella, L. Panizzi , F.M. Renard and C. Verzegnassi a Dipartimento di Fisica, Università del Salento, Italy b INFN, Sezione di Lecce, Italy c ICTP, Trieste, Italy d Max-Planck-Institut für Physik (Werner Heisenberg Institut), Germany e Dipartimento di Fisica Teorica, Università di Trieste, Italy f INFN, Sezione di Trieste, Italy g Laboratoire de Physique Théorique et Astroparticules,
منابع مشابه
Supersymmetric Electroweak Corrections to Charged Higgs Boson Production in Association with a Top Quark at Hadron Colliders
We calculate the O(αewm 2 t(b)/m 2 W ) and O(αewm 4 t(b)/m 4 W ) supersymmetric electroweak corrections to the cross section for the charged Higgs boson production in association with a top quark at the Tevatron and the LHC. These corrections arise from the quantum effects which are induced by potentially large Yukawa couplings from the Higgs sector and the chargino-top(bottom)-sbottom(stop) co...
متن کاملSupersymmetric Electroweak Corrections to W±H∓ Associated Production at the CERN Large Hadron Collider
The O(αewm 2 t(b)/m 2 W ) and O(αewm 4 t(b)/m 4 W ) supersymmetric electroweak corrections to the cross section for WH associated production at the LHC are calculated in the minimal supersymmetric standard model. Those corrections arise from the quantum effects which are induced by the Yukawa couplings from the Higgs sector and the chargino-top(bottom)-sbottom(stop) couplings, neutralinotop(bot...
متن کاملCP violation at one loop in the polarization - independent chargino production in e + e − collisions
Recently Osland and Vereshagin noticed, based on sample calculations of some box diagrams , that in unpolarised e + e − collisions CP-odd effects in the non-diagonal chargino-pair production process are generated at one-loop. Here we perform a full one-loop analysis of these effects and point out that in some cases the neglected vertex and self-energy contributions may play a dominant role. We ...
متن کاملSupersymmetric Electroweak Corrections to Top Quark Production at LHC
The αmt /m 2 W order supersymmetric electroweak corrections arising from loops of chargino, neutralino, and squark to top quark pair production by gg fusion at LHC are calculated in the minimal supersymmetric model. We found that the corrections amount about a few percent.
متن کاملElectroweak corrections to hadronic photon production at large transverse momenta
We study the impact of electroweak radiative corrections on direct production of photons with high transverse momenta at hadron colliders. Analytic results for the weak one-loop corrections to the parton scattering reaction q̄q → γg and its crossed variants are presented. For the high-energy region, where the corrections are strongly enhanced by logarithms of ŝ/M W , we derive simple asymptotic ...
متن کامل