120 citations · 127 across the 3 of their papers we have counts for
5 papers · 1 filter
Charged-Higgs effects in a new B -> D tau nu differential decay distribution
Ulrich Nierste, Stephanie Trine, Susanne Westhoff
We show that the decay mode B -> D tau nu is competitive with and complementary to B -> tau nu in the search for charged-Higgs effects. Updating the relevant form factors, we find…
The MSSM Higgs sector and B-Bbar mixing for large tan(beta)
Stephanie Trine
A systematic analysis of Higgs-mediated contributions to the Bd and Bs mass differences is presented in the MSSM with large values of tan(beta). In particular, supersymmetric corre…
Strong Anomalies in Kaon Decays
S. Trine
We point to a potentially large contribution of the QCD trace anomaly to the isoscalar pion pair production in Kaon decays. This contribution arises from the long-distance evolutio…
Analytical Behaviour of Positronium Decay Amplitudes
G. Lopez Castro, J. Pestieau, C. Smith +1
Positronium annihilation amplitudes that are computed by assuming a factorization approximation with on-shell intermediate leptons do not exhibit good analytical behaviour. Using d…
Parapositronium Decay and Dispersion Relations
G. Lopez Castro, J. Pestieau, C. Smith +1
Positronium decay rates are computed at the one-loop level, using convolution-type factorized amplitudes. The dynamics of this factorization is probed with dispersion relations, sh…