We give the complete O(p) bosonization of the electroweak Penguin operators Q7,8 and compare the result with that of the gluon Penguin operators Q5,6. We find that, in addition to the usual (constant and current-current) parts, there are three new terms not discussed previously in the literature. Two of these are present in the factorization approximation and should be included in the standard ...

Evanescent operators are a special class of that vanish in four-dimensional spacetime but non-zero $d=4-2\epsilon$ dimensions. In this paper, we continue our systematic study the evanescent pure Yang-Mills theory and focus on their two-loop renormalization. We develop an efficient strategy to compute divergences form factors high-dimensional high-length by combining $d$-dimensional unitarity me...

We describe the results of recent studies of a chromomagnetic instability and a gluonic phase in neutral two-flavor quark matter at nonzero temperature.

Large distance contributions to the K ° ~ ° mass matrix are often neglected but have important consequences for CP violation. If "penguins" dominate I ASI = 1 weak decays then these large distance contributions correspond to "(penguin) 2 ' ' diagrams and receive potentially large CP-violating phases. We argue that this effect reduces the size of l e'/e I by ~ 1/2.5 in the KM model. In the extre...

The importance of the strange quark mass, as a fundamental parameter of the Standard Model (SM) and as an input to many interesting quantities, has been highlighted in many reviews, eg in Ref [1]. A first principles calculation of ms is possible in lattice QCD but to date there has been a rather large spread in values from lattice calculations. This review aims to clarify the situation by expla...

Review of: Marías, J. (2021). Tomás Nevinson . Madrid: Alfaguara; Penguin Random House, 680 pp.

The relational model supports the view concept, but relational views are limited in structure. OODBMSs do not support the view concept, so that all applications must share the same arrangement of object classes and inheritance. We describe the Penguin system and its support for the view concept. Each application can have its own arrangement of object classes and inheritance, and these are de ne...