B−→φφK−decay rate withφφinvariant mass below the charm threshold

The B − → φφK − decay rate with φφ invariant mass below charm threshold

Backgrounds to 7 studies below charm threshold

Using DELCO data obtained at SPEAR, we evaluate the backgrounds to r+rdata samples below open charm threshold at the r-charm Factory (TcF). With a singletagging signature (electron and missing energy, Emiss), which is unique to the rcF, the backgrounds are found to be below 0.1%. 1 Requirements for future T data samples In order to make significant progress in r physics, future data samples mus...

The B − → φφK − decay below the charm threshold

We investigate the decay mechanism in the B − → φφK − decay below charm threshold and in the neighborhood of the η c invariant mass region. Our approach is based on the use of factorization and the knowledge of matrix elements of the weak currents. For the B meson weak transition we apply form factor formalism, while for the light mesons we use effective weak and strong Lagrangians. We find tha...

Mass and Couplings Below Threshold at the NLC

We investigate the capability of the NLC to indirectly determine both the mass as well as the couplings to leptons and b-quarks of a new neutral gauge boson below direct production threshold. By using data collected at several different values of the collider center of mass energy, we demonstrate how this can be done in an anonymous and model-independent manner. The procedure can be easily exte...

Phase Locking Below Rate Threshold in Noisy Model Neurons

The property of a neuron to phase-lock to an oscillatory stimulus before adapting its spike rate to the stimulus frequency plays an important role for the auditory system. We investigate under which conditions neurons exhibit this phase locking below rate threshold. To this end, we simulate neurons employing the widely used leaky integrate-and-fire (LIF) model. Tuning parameters, we can arrange...