Calculation of the branching ratio ofB−→hc+K−in perturbative QCD
نویسندگان
چکیده
منابع مشابه
Perturbative and non-perturbative QCD
In these lectures we give a concise introduction to the ideas of renormalon calculus in QED and QCD. We focus in particular on the example of the Adler D function of vacuum polarization, and on relations between perturbative renormalon ambiguities and corresponding non-perturbative Operator Product Expansion (OPE) ambiguities. Recent work on infrared freezing of Euclidean observables is also di...
متن کاملOverview of Perturbative Qcd †
I review theoretical techniques and current issues in perturbative QCD, primarily as applied to jet physics at colliders. † Presented at the XXXI st Rencontres de Moriond, March 23–30, 1996, Les Arcs, France
متن کاملThe non-perturbative QCD potential
The potential between heavy quarks can be rigorously defined in a QCD effective field theories framework. I discuss the general situation when the coupling constant may not be considered small and provide an explicit expression for the potential valid up to order 1/m. Spin dependent and spin independent terms are expressed in terms of Wilson loops, completing an ideal journey started twenty yea...
متن کاملProgress in Perturbative Qcd
We briefly summarize some recent theoretical developments in perturbative QCD, emphasizing new ideas which have led to widening the domain of applicability of perturbation theory. In particular, it is now possible to calculate efficiently processes with many partons; the high order behavior of perturbation theory can be at least partly understood by going beyond leading twist accuracy; factoriz...
متن کاملDevelopments in Perturbative Qcd
A brief review of key recent developments and ongoing projects in perturbative QCD theory, with emphasis on conceptual advances that have the potential for impact on LHC studies. Topics covered include: twistors and new recursive calculational techniques; automation of one-loop predictions; developments concerning NNLO calculations; the status of Monte Carlo event generators and progress in mat...
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: Physical Review D
سال: 2006
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.74.114029