The breaking of electroweak symmetry, and origin of the associated “weak scale”, v weak=
1/2 2 GF= 175 GeV, may be due to a new strong interaction. Theoretical developments over …

This biennial review summarizes much of Particle Physics. Using data from previous
editions, plus 1900 new measurements from 700 papers, we list, evaluate, and average …

The authors review the experimental measurements and theoretical descriptions of leptonic
and semileptonic decays of particles containing a single heavy quark, either charm or …

We study the physics of spontaneously broken family symmetries acting on the third
generation. Massless familons (or Majorons) f associated with such broken symmetries are …

Despite the success of the Standard Model (SM), which provides a superb description of a
wide range of experimental particle physics data, the dynamics responsible for electroweak …

We have used the CLEO II detector and 2.06 fb− 1 of ϒ (4 S) data to measure the B-meson
semileptonic branching fraction. The B→ Xe ν momentum spectrum was obtained over …

Low-scale baryogenesis could be discovered at B factories and the LHC. In the B-
Mesogenesis paradigm [G. Elor, M. Escudero, and AE Nelson, Phys. Rev. D 99, 035031 …

Inclusive branching ratios involving b to tau transitions are measured in approximately four
million hadronic Z decays collected by the ALEPH detector at LEP. The fully-inclusive …

The inclusive B→ X s ν ν decay rate, on which no experimental bound exists to date, can be
constrained by searching for large missing energy events in B decays. Carefully examining …

Motivated by the recent evidence for B+→ K+ ν¯ ν decays at Belle II, we point out that fully
invisible B d and B s meson decays are strongly constrained by LEP. A reinterpretation of an …