Abstract We demonstrate that the recently proposed soft gluon factorization (SGF) is equivalent to nonrelativistic QCD (NRQCD) for heavy quarkonium production or decay, which means that, any given process, these two theories are either both valid violated. use methods arrive at this conclusion. In first method, we apply physical process . Our explicit calculation s...

Diffractive events in p̄p collisions are characterized by the presence of a leading proton or antiproton which remains intact, and/or a rapidity gap, defined as a pseudorapidity region devoid of particles. Diffractive events involving hard processes (“hard diffraction”), such as production of high ET jets (see Fig. 1), have been studied extensively to understand the nature of the exchanged objec...

Transverse-momentum dependent (TMD) light-cone wave functions of a light meson are important ingredients in the TMD QCD factorization of exclusive processes. This factorization allows one conveniently resum Sudakov logarithms appearing in collinear factorization. The TMD light-cone wave functions are not simply related to the standard light-cone wave functions in collinear factorization by inte...

In this article the notions of quasi mono (epi) as a generalization (epi), (quasi weakly hereditary) general closure operator $mathbf{C}$ on category $mathcal{X}$ with respect to class $mathcal{M}$ morphisms, and factorization structures in are introduced. It is shown that under certain conditions, if $(mathcal{E}, mathcal{M})$ structure $mathcal{X}$, then has right $mathcal{M}$-factorization l...

In this work, we calculate the branching ratios and CP asymmetries of the decays of B → ππ and πK in the frame of QCD factorization in the heavy quark limit. We also compare the results with the estimates by using conventional factorization and experimental measurements. PACS numbers 13.25.Hw 12.38.Bx Supported in part by National Natural Science Foundation of China and State Commission of Scie...

We present results on the NLO (α2s) spectator-scattering corrections to the topological penguin amplitudes for charmless hadronic two-body B-decays in QCD factorization. The corrections can be sizable for the colour-suppressed electroweak penguin amplitudes α 4,EW but otherwise are numerically small. Our results explicitly demonstrate factorization at this order. To assess the phenomenological ...