Full one-loop QCD and electroweak corrections to sfermion pair production in $\gamma \gamma$ collisions

Abstract

We have calculated the full one-loop electroweak (EW) and QCD corrections to the third generation scalar-fermion pair production processes $e^{+}{e}^{-}\to \gamma \gamma \to \widetilde{f_i}\overline{\stackrel{~}{f_i}}(f=t,b,\tau )$ at an electron-positron linear collider(LC) in the minimal supersymmetric standard model (MSSM). We analyze the dependence of the radiative corrections on the parameters such as the colliding energy $\sqrt{\hat{s}}$ and the SUSY fundamental parameters $A_f$, $\tan \beta$, $\mu$, $M_{SUSY}$ and so forth. The numerical results show that the EW corrections to the squark-, stau-pair production processes and QCD corrections to the squark-pair production processes give substantial contributions in some parameter space. The EW relative corrections to squark-pair production processes can be comparable with QCD corrections at high energies. Therefore, these EW and QCD corrections cannot be neglected in precise measurement of sfermion pair productions via $\gamma \gamma$ collision at future linear colliders.

to be appeared in Phys. Rev. D

References in corpus (17)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Generating Feynman Diagrams and Amplitudes with FeynArts 3
• Higher Order Corrections to Jet Cross Sections in Hadron Colliders
• The Implementation of the Minimal Supersymmetric Standard Model in FeynArts and FormCalc
• Next-to-Leading Order Cross Sections for Tagged Reactions
• Slepton Production at e+e- and e-e- Linear Colliders
• Associated production of Intermediate Higgs or Z-boson with $t\bar{t}$ pair in $\gamma \gamma$ collision
• Next-to-leading order slepton pair production at hadron colliders
• SUSY--QCD corrections to scalar quark pair production in $e^{+}{e}^{-}$ annihilation
• Slepton pair production in e+e- collision in supersymmetric left-right model
• One-loop corrections to neutral Higgs boson decays into neutralinos
• Gluon Radiation Off Scalar Stop Particles
• QCD corrections to scalar quark pair production in e+e- annihilation
• Radiative corrections to scalar-fermion pair production in high energy e+e- collisions
• Improved full one--loop corrections to A^0 -> \sq_1 \sq_2 and \sq_2 -> \sq_1 A^0
• Complete one--loop corrections to e+e- -> sf_i sf_j
• The QCD corrections to scalar top pair production in photon-photon collisions