Predictions for ${\bar \nu} \nu \gamma$ production at LEP

K--> pi nu nu -bar and high precision determinations of the CKM matrix.

We investigate the future determination of the CKM matrix using theoretically clean quantities, like B(K → πνν̄), B(KL → πνν̄) or sin 2β, sin 2α as extracted from CP violation studies in B physics. The theoretical status of K → πνν̄ is briefly reviewed and their phenomenological potential is compared with that of CP asymmetries in B decays. We stress the unique opportunities provided by measuring ...

Predictions for ν̄νγ Production at LEP

We study predictions for the reaction e+e− → ν̄ν(nγ). The complete one-loop corrections are taken into account and higher order contributions, in particular those for the observed real photons, are added whenever necessary. The event generator KKMC, a general-purpose Monte Carlo generator for the process e+e− → f̄fnγ based on the method of exclusive exponentiation, is used as the environment. We ...

Thymus dysgenesis in nude (nu nu) mice.

Study of the decays D-0 -> pi(-)e(+)nu(e), D-0 -> K(-)e(+)nu(e), D+ -> pi(0)e(+)nu(e), and D+ -> (K)over-bar(0)e(+)nu(e)

D. Cronin-Hennessy, K. Y. Gao, D. T. Gong, J. Hietala, Y. Kubota, T. Klein, B. W. Lang, R. Poling, A. W. Scott, A. Smith, P. Zweber, S. Dobbs, Z. Metreveli, K. K. Seth, A. Tomaradze, J. Ernst, H. Severini, S. A. Dytman, W. Love, V. Savinov, O. Aquines, Z. Li, A. Lopez, S. Mehrabyan, H. Mendez, J. Ramirez, G. S. Huang, D. H. Miller, V. Pavlunin, B. Sanghi, I. P. J. Shipsey, B. Xin, G. S. Adams, ...

Test of Qcd Predictions for Multiparticle Production at Lep

The constants b and c entering in this expression can be calculated, and especially in the result for c enters crucially the assumption of coherence: neglecting the effect of angular ordering would increase it by a factor of √ 2. The data up to the highest energies keep to be in fair agreement with this prediction 1 (see Fig.1). An important point in this measurement is that the LEP data have b...