Jets constructed via clustering algorithms (e.g., anti-${k}_{T}$, soft-drop) have been proposed for many precision measurements, such as the strong coupling ${\ensuremath{\alpha}}_{s}$ and nucleon intrinsic dynamics. However, theoretical accuracy is affected by missing QCD corrections at higher orders jet functions in associated factorization theorems. Their calculation complicated procedure. I...

This Article is brought to you for free and open access by the Physics at ODU Digital Commons. It has been accepted for inclusion in Physics Faculty Publications by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. Repository Citation Collins, John and Rogers, Ted C., "Connecting Different TMD Factorization Formalisms in QCD" (2017)...

Based on the QCD factorization approach we analyse the branching ratios for the channel B → ρπ. From the comparisons with experimental data provided by CLEO, BELLE and BABAR we constrain the form factor F B→π (m 2 ρ) and propose boundaries for this form factor depending on the CKM matrix element parameters ρ and η. The investigation of B decays requires a knowledge of both the soft and hard int...

Using the factorization approach and considering the contributions of the currentcurrent, QCD penguin and electroweak penguin operators at the leading approximation, the decay amplitudes and decay widths of Bq → Dq(D q)P and Bq → Dq(D q )V transitions, where q = u, d, s and P and V are pseudoscalar and vector mesons, are calculated in terms of the transition form factors of the Bq → Dq and Bq →...

Recent progress in proving the validity of factorization for inclusive reactions in QCD is reviewed. A new necessary condition involving the target length is emphasized. We also discuss a number of novel effects in gauge theory including null zone phenomena, color transparency, formation zone conditions, and possible heavy quark Fock states components in ordinary hadrons. Invited talk presented...

It is shown that the colour dipole approach to hard scattering at high energy is fully compatible with kT factorization at the leading logarithm approximation (in − log xBj). The relations between the dipole amplitudes and unintegrated diagonal and non-diagonal gluon distributions are given. It is also shown that including the exact gluon kinematics in the kT factorization formula destroys the ...

Nonleptonic decays ofB mesons have attracted a lot of attention recently since they were observed experimentally in CLEO, BaBar and BELLE. These decays are important in extracting the information on the Cabibbo-KobayashiMaskawa (CKM) matrix elements and CP violation. On the theoretical side, it is the least understood area. Since nonleptonic decays involve nonperturbative effects such as final-...