Sfermion pair production in polarized and unpolarized $\gamma \gamma$ collisions
| Autor: | Berge, S., Klasen, M., Umeda, Y. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2001 |
| Předmět: |
polarization
Feynman graph High Energy Physics::Phenomenology Physics::Optics pair production [sfermion] mass [channel cross section] radiation [beam] energy dependence [channel cross section] bremsstrahlung energy spectrum [photon] exclusive reaction [photon photon] mass [sfermion] rapidity spectrum High Energy Physics::Experiment ddc:530 supersymmetry spectrum [transverse momentum] numerical calculations laser [backscatter] |
| Zdroj: | Physical review / D 63(3), 035003 (2001). doi:10.1103/PhysRevD.63.035003 |
| DOI: | 10.1103/PhysRevD.63.035003 |
| Popis: | We calculate total and differential cross sections for the production of sfermion pairs in photon-photon collisions, including contributions from resolved photons and arbitrary photon polarization. Sfermion production in photon collisions depends only on the sfermion mass and charge. It is thus independent of the details of the SUSY breaking mechanism, but highly sensitive to the sfermion charge. We compare the total cross sections for bremsstrahlung, beamstrahlung, and laser backscattering photons to those in $e^+e^-$ annihilation. We find that the total cross section at a polarized photon collider is larger than the $e^+e^-$ annihilation cross section up to the kinematic limit of the photon collider. |
| Databáze: | OpenAIRE |
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