The original aim of this work, was to give a brief review of gluonic mesons, to be searched for in an experiment dedicated to central production of a relatively low mass hadronic system, whereby rapidity gaps are possible to impose, requiring initial hadron beams of sufficient energy and intensity. Sections 1-4 are devoted to this aim. The various theoretical ingrediants, covering several decad...

Latest experimental progress is reviewed on the searches for physics beyond the Standard Model using the radiative and electroweak penguin decays of B mesons. This review covers inclusive and exclusive measurements of the b → sγ, b → dγ and b → sll processes, including the first observation of B → Kll and the first attempt to measure the inclusive B → Xsl l branching fraction.

Motivated by the recent experimental data, we have revisited the B → πK, ππ decays in the framework of QCD factorization, with inclusion of the important strong penguin corrections of order αs induced by b → Dg∗g∗ (D = d or s and g∗ denotes an off-shell gluon) transitions. We find that these higher order strong penguin contributions can provide ∼ 30% enhancement to the penguin-dominated B → πK ...

We report the discovery of the first vertebrate from the Paleogene of Tierra del Fuego (Isla Grande), Argentina, in southernmost South America. The specimen consists of parts of an associated pelvic girdle and limb that are identified as belonging to the penguin stem clade (Aves: Pansphenisciformes). The specimen, from an exposure of the Leticia Formation (late middle Eocene), is the earliest k...

An analysis of B → Kπ decays is given, assuming a small elastic πK rescattering phase difference. Using factorization model elastic πK rescattering phase difference. Using factorization model only for the tree-level and electroweak penguin amplitudes, we show that the strong penguin amplitude, its absorptive part and the CP-violation weak phase γ can be obtained from the measured B → Kπ branchi...

Electroweak penguin decays provide a promising hunting ground for Physics beyond the Standard Model (SM). The decay B → Xsγ, which proceeds through an electromagnetic penguin loop, already provides stringent constraints on the supersymmetric (SUSY) parameter space [ 1]. The present data samples of ∼ 1 × 108BB̄ events allow to explore radiative penguin decays with branching fractions of the order...

We calculate branching ratios for pure penguin decay modes, B → φK decays using perturbative QCD approach. Our results of branching ratios are consistent with the experimental data and larger than those obtained from the naive factorization assumption and the QCD-improved factorization approach. This is due to a dynamical penguin enhancement in perturbative QCD approach. PACS index : 13.25.Hw, ...

We discuss single transverse spin asymmetries in the Drell-Yan process originating from so-called gluonic poles in twist-three hadronic matrix elements, as first considered by Qiu and Sterman. Even though time-reversal invariance is not broken, the effects of such poles cannot be distinguished from those of time-reversal odd distribution functions. We show the connection between gluonic poles a...