Factorization and angular distribution asymmetries in charmful baryonicBdecays

Lepton angular asymmetries in semileptonic charmful B decays

Angular Distribution and CP Asymmetries in the Decays B̄ →

The short-distance Hamiltonian describing b → s(d)e−e+ in the standard model is used to obtain the decay spectrum of B̄ → K−π+e−e+ and B̄ → π−π+e−e+, assuming the Kπ and ππ systems to be the decay products of K∗ and ρ respectively. Specific features calculated are (i) angular distribution of K− (or π−) in the K−π+ (or π−π+) centre-of-mass (c.m.) frame; (ii) angular ∗E-mail address: krueger@gtae3....

Factorization and Universality in Azimuthal Asymmetries

The theoretical status on transverse momentum dependent factorization in semiinclusive DIS and Drell-Yan is not clear in contrast to claims in the literature in which gauge links only at one loop were considered explicitly. Recent obtained results beyond this order questions the validity of these claims and will be briefly discussed. Possible input from experiments to solve these matters will b...

QCD factorization and CP asymmetries in hadronic B decays

We review recent advances in the theory of strong-interaction effects and final-state interactions in hadronic weak decays of heavy mesons. In the heavy-quark limit, the amplitudes for most nonleptonic, two-body B decays can be calculated from first principles and expressed in terms of semileptonic form factors and lightcone distribution amplitudes. We summarize the main features of this novel ...

Asymmetries in the angular distributions in the tt̄ system

Asymmetries in the pair production of top–antitop quarks in hadronic collisions have gained a lot of attention because the size of the effect exceeded the predictions based on the Standard Model (SM). To understand the basis for these predictions as well as the importance of this measurement and its experimental subtleties, it is instructive to review its historic predecessor — the asymmetry of...