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CP violation at a linear collider with transverse polarization

Ananthanarayan, B and Rindani, Saurabh D (2003) CP violation at a linear collider with transverse polarization. [Preprint]

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Transverse polarization (TP) enables novel CP violation search in the inclusive process e+e- -> A+X. When the A spin is unobserved and m_e neglected, only (pseudo-)scalar or tensor currents associated with a new-physics scale Lambda can lead to CP-odd observables at leading order in the couplings from interference with gamma and Z in the presence of TP. Without TP, these couplings can be probed only at higher order, and with loss of statistics entailed by the measurement of A polarization. For e+e- -> t tbar, an azimuthal CP asymmetry can yield at 90% C.L. a bound on Lambda of approximately 10 TeV for sqrt{s}=500 GeV and L=500 fb^-1 with perfect TP.

Item Type: Preprint
Additional Information: JLAB-THY-03-169, IISc-CTS-5/03
Department/Centre: Division of Physical & Mathematical Sciences > Centre for Theoretical Studies (Ceased to exist at the end of 2003)
Date Deposited: 30 Jul 2004
Last Modified: 19 Sep 2010 04:13
URI: http://eprints.iisc.ac.in/id/eprint/766

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