Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-08-06
Phys.Lett. B602 (2004) 97-104
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages latex, with 6 figures included. Revised version corrects minor error. Latest version corrects minor errors, to appear
Scientific paper
10.1016/j.physletb.2004.09.068
It is shown that if electron and positron beams at a linear collider are transversely polarized, azimuthal asymmetries of the final-state top quark in e+e- --> t tbar can be used to probe a combination of couplings of left and right chiralities in a scalar leptoquark model. The CP-conserving azimuthal asymmetry would be a sensitive test of the chirality violating couplings. A linear collider operating at sqrt{s}=500 GeV and having transverse polarizations of 80% and 60% respectively for the e- and e+ beams, can put a limit of the order of 0.025 on the product of the left and right chirality leptoquark couplings (in units of the electromagnetic coupling constant), with a leptoquark mass of 1 TeV and for an integrated luminosity of 500 inverse fb. The CP-violating azimuthal asymmetry, which would provide a direct test of CP-violating phases in leptoquark couplings, can be constrained to the same level of accuracy. However, this limit is uninteresting in view of the much better indirect limit from the electric dipole moment of the electron.
No associations
LandOfFree
Transverse beam polarization and limits on leptoquark couplings in e+e- --> t tbar does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Transverse beam polarization and limits on leptoquark couplings in e+e- --> t tbar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transverse beam polarization and limits on leptoquark couplings in e+e- --> t tbar will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-500828