Perturbative QCD
Pomeron interaction in the perturbative QCD
... the perturbative QCD strong interactions are mediated by exchange of QCD pomerons ("BFKL pomerons",P), which are bound states of pairs of reggeized gluons ("reggeons") ...
9
Selected Issues in Non-Perturbative QCD
... Presented by F. Ceccopieri. Hard Diffraction in DIS has a complete perturbative QCD description, factorization theorems and parton evolution. At hadron colliders factorization cannot be proven apart from the ...
10
Pair Production in Non Perturbative QCD
... In this paper, a method to calculate the vacuum to vacuum transition amplitude in the presence of a non-abelian background field is introduced. The number of non-perturbative quark-antiquark produced per unit ...
5
Final State Interaction Effects in B+→J/ψ π+ Decay
... B meson non-leptonic decays are significant for testing theoretical frameworks and searching new physics beyond the standard model. The next-to-leading order low-energy effective Hamiltonian is used for the weak ...
6
A non perturbative exploration of the high energy regime in N<inf>f</inf>= 3 QCD: ALPHA Collaboration
... non- perturbative QCD observables to their perturbative expan- sions, over a wide range of ...Lattice QCD, together with a careful treatment of the continuum limit, is currently the only way ...
25
χc and χb States in Hot Quark Gluon Plasma
... One of the amazing discoveries of experimental mea- surements at RHIC is the surprising amount of both ra- dial [1-3] and elliptic flow [4-6] exhibited by the out- going hadrons. Theoretical calculations cannot generate ...
9
XYZ states at BESIII
... energy region, the perturbative QCD doesn’t works very well. Theoretical method used in this region are not accurate enough, such as lattice QCD, QCD sum rule, e ff ective field theory [1]. ...
5
A study of the b quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole
... the perturbative fragmentation distribution is not reliable in these ...the perturbative QCD component which is de- fined in [34] within the [0, 1] interval, the non-perturbative component has ...
30
Measurements of event properties and multi-differential jet cross sections and impact of CMS measurements on Proton Structure and QCD parameters
... absolute rapidities | y | < 3 and for the forward region 3.2 < | y | < 4.7, respectively. The comparison between data and predictions at NLO in perturbative QCD including corrections for ...
10
CTEQ-TEA parton distribution functions with intrinsic charm
... use QCD theory to analyze a broad range of exper- imental data, including precision data from HERA, the Tevatron, and the Large Hadron Col- lider ...global QCD analysis of PDFs needed for advanced tests of ...
6
Cross Section and Heavy Quark Composition of gamma + mu Events Produced in p anti-p Collisions
... 共 QCD 兲 ...current perturbative QCD models do not agree well for both inclusive processes, giving insights into the possible limitations of such models 关 1,2 兴 ...
7
From OPE to chiral perturbation theory in holographic QCD
... partially QCD Green functions on three ranges of energies (i) deep Euclidean, where perturbative QCD and OPE expansion methods can be applied, (ii) an intermediate Minkowski region, where resonances ...
11
QCD vs. the Centrifugal Barrier: a New QCD Effect
... We emphasize that we have not imposed any form of interquark interaction on our model. Instead, we make extensive use only of experimental data together with the idea that quarks and diquarks serve as building blocks for ...
9
A new approach to analytic, non-perturbative, gauge-invariant QCD renormalization is described, with applications to high energy elastic pp-scattering.
... Abstract. A new non-perturbative, gauge-invariant model QCD renormalization is ap- plied to high energy elastic pp-scattering. The differential cross-section deduced from this model displays a diffraction dip ...
8
Perturbative symmetry approach
... a perturbative version of the symmetry approach in the symbolic representation and to generalise it in order to make it suitable for study nonlocal and non-evolution ...
17
QCD Phase Diagram with Imaginary Chemical Potential
... First-principle calculations based on QCD are now highly called. If such calculations would be at our hand, their outcomes are also very valuable for many research fields: high energy heavy ion collisions, the high ...
8
Perturbative and Non-Perturbative Aspects of Orientifold Compactifications
... During the last two years there has been some progress towards a better understand- ing of non-perturbative effects in supersymmetric four-dimensional string compact- ifications on Calabi-Yau orientifolds. As was ...
224
The multiple-scattering series in few-nucleon systems
... both perturbative and non-perturbative treatments are applicable to d scattering: in the perturbative case the numerical enhancement of the short-range operator turns out to be not sufficient to ...
5
Non Perturbative Analysis of Various Mass Generation by Gluonic Dressing Effect with the Schwinger Dyson Formalism in QCD
... Diquark is a bound-state-like object of two quarks and decomposed into color anti-triplet 3 c and sextet 6 c and flavor anti-triplet 3 f and sextet 6 f in SU(3) flavor case. The most attractive channel for diquark is the ...
16
Understanding Nuclear Binding Energy with Strong and Electroweak Coupling Constants
... to be responsible for the strong force to act on quarks via the force carrying agent, gluon. Experimentally it is well established that, strength of strong force depends on the energy of the interaction or the distance ...
5