Drell–Yan diffraction: breakdown of QCD factorization
نویسندگان
چکیده
منابع مشابه
Breakdown of Qcd Factorization Theorems for Inclusive Reactions
Initial state interactions are shown to violate standard factorization for massive lepton pair production and hadron-induced hard-scattering inclusive reactions order-by-order in QCD perturbation theory. Initial and final state interactions lead to a number of new physical phenomena including kl fluctuations, color correlations, anomalous nuclear number dependence of inclusive cross sections, a...
متن کاملB?J/?(?,K) Decays within QCD Factorization Approach
We used QCD factorization for the hadronic matrix elements to show that the existing data, in particular the branching ratios BR ( ?J/?K) and BR ( ?J/??), can be accounted for this approach. We analyzed the decay within the framework of QCD factorization. We have complete calculation of the relevant hard-scattering kernels for twist-2 and twist-3. We calculated this decays in a special scale ...
متن کاملAspects of QCD Factorization
The QCD factorization approach provides the theoretical basis for a systematic analysis of nonleptonic decay amplitudes of B mesons in the heavy-quark limit. After recalling the basic ideas underlying this formalism, several tests of QCD factorization in the decays B → D(∗)L, B → K∗γ, and B → πK,ππ are discussed. It is then illustrated how factorization can be used to obtain new constraints on ...
متن کاملFactorization in hard diffraction
In this talk, I reviewed the role of factorization in diffraction hard scattering.
متن کاملDecays in QCD Factorization
The hadronic decay B → J/ψK∗ is analyzed within the framework of QCD factorization. The spin amplitudes A0, A‖ and A⊥ in the transversity basis and their relative phases are studied using various different form-factor models for B −K∗ transition. The effective parameters a2 for helicity h = 0,+,− states receive different nonfactorizable contributions and hence they are helicity dependent, contr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2011
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-011-1827-7