Journal
PHYSICAL REVIEW D
Volume 78, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.78.015006
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Funding
- DFG [NI 1105/1-1]
- EU [MRTN-CT-2006035482]
- [DFG-SFB/TR9]
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We show that the decay mode B -> D tau nu(tau) is competitive with and complementary to B -> tau nu(tau) in the search for charged-Higgs effects. Updating the relevant form factors, we find that the differential distribution in the decay chain (B) over bar -> D (nu) over bar (tau)tau(-)[-> pi(-) nu(tau)] excellently discriminates between standard model and charged-Higgs contributions. By measuring the D and pi(-) energies and the angle between the D and pi(-) three-momenta, one can determine the effective charged-Higgs coupling including a possible CP-violating phase.
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