How Could CP-Invariance and Physics Beyond SM Be Tested in Polarized Proton Collisions at RHIC?
Abstract
Just in months ahead, the first high luminosity collisions of two polarized proton beams are expected to occur at RHIC in BNL at sqrts up to 500 GeV, bringing a new quality to the collider physics. In collisions of polarized particles, the presence of two axial vectors of initial polarizations, fully controlled by experimenters, may dramatically increase the number of available for tests correlations between participating vectors, generating asymmetries that could relatively easily be measured. In frame of Standard Model (SM), many of these asymmetries are either strongly suppressed or strictly prohibited. Therefore, if some of them were found nonzero, this could be an indication of a new physics beyond SM. If certain criteria met, it might be difficult to explain the observed nonzero correlations in theories without CP- and/or T-violation.
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