Full one-loop QCD and electroweak corrections to sfermion pair production in {gamma}{gamma} collisions

Journal Article · Tue Mar 01 04:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.055009· OSTI ID:20706142

Lirong, Xing; Renyou, Zhang; Yi, Jiang; Liang, Han; Gang, Li ^[1]; Wengan, Ma ^[2]

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1. Department of Modern Physics, University of Science and Technology of China (USTC), Hefei, Anhui 230027 (China)
2. CCAST (World Laboratory), P.O.Box 8730, Beijing 100080 (China)

We have calculated the full one-loop electroweak (EW) and QCD corrections to the third generation scalar-fermion pair production processes e{sup +}e{sup -}{yields}{gamma}{gamma}{yields}f{sub i}-tildef{sub i}-tilde(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 {radical}(s-circumflex) and the SUSY fundamental parameters A{sub f}, tan{beta}, {mu}, M{sub 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.

• OSTI ID: 20706142
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 71; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON-POSITRON INTERACTIONS
LINEAR COLLIDERS
PAIR PRODUCTION
PHOTON-PHOTON INTERACTIONS
QUANTUM CHROMODYNAMICS
RADIATIVE CORRECTIONS
SCALARS
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY