Results 31 to 40 of about 99,149 (216)
Compatibility of a model for the QCD-Pomeron and chiral-symmetry breaking phenomenologies [PDF]
The phenomenology of a QCD-Pomeron model based on the exchange of a pair of non-perturbative gluons, i.e. gluon fields with a finite correlation length in the vacuum, is studied in comparison with the phenomenology of QCD chiral symmetry breaking, based ...
A.A Natale +37 more
core +2 more sources
Scalar coupling evolution in a non-perturbative QCD resummation scheme
We compute the Standard Model scalar coupling (λ) evolution in a particular QCD resummation scheme, where the QCD coupling becomes infrared finite due to the presence of a dynamically generated gluon mass, leading to the existence of a non-perturbative ...
J.D. Gomez, A.A. Natale
doaj +1 more source
The Strong Coupling Constant from Hadron Structure Phenomenology
We present recent developments on the role of the running coupling constant at the intersection of perturbative and nonperturbative QCD. A number of experiments show a smooth transition from small to large scales given by the four-momentum transfer in ...
Courtoy, A., Liuti, Simonetta
core +1 more source
The discussion includes general properties of QCD perturbation expansion, onia decays, Drell-Yan, higher twist, and some miscellaneous comments about .cap alpha./sub s/. 45 references. (GHT)
openaire +3 more sources
Effective locality and gauge invariance
A few years ago, based on standard functional manipulations, an unexpected property was proven to be satisfied by the fermionic Green's functions of QCD, and dubbed effective locality.
Grandou T.
doaj +1 more source
MS renormalization of S-wave quarkonium wavefunctions at the origin
We compute S-wave quarkonium wavefunctions at the origin in the MS ¯ $$ \overline{\mathrm{MS}} $$ scheme based on nonrelativistic effective field theories.
Hee Sok Chung
doaj +1 more source
m‾c and m‾b from MBc and improved estimates of fBc and fBc(2S)
We extract (for the first time) the correlated values of the running masses m‾c and m‾b from MBc using QCD Laplace sum rules (LSR) within stability criteria where perturbative (PT) expressions at N2LO and non-perturbative (NP) gluon condensates at LO are
Stephan Narison
doaj +1 more source
Soft-drop grooming for hadronic event shapes
Soft-drop grooming of hadron-collision final states has the potential to significantly reduce the impact of non-perturbative corrections, and in particular the underlying-event contribution.
Jeremy Baron +4 more
doaj +1 more source
Inelastic J/psi and Upsilon hadroproduction [PDF]
We consider the prompt hadroproduction of J/psi, psi' and the Upsilon (1S,2S,3S) states caused by the fusion of a symmetric colour-octet two-gluon state and an additional gluon. The cross sections are calculated in leading-order perturbative QCD. We find
91 +30 more
core +1 more source
Master integrals for two-loop QCD corrections to quark quasi PDFs
We compute the master integrals for the two-loop QCD corrections to quark quasi parton distribution functions (PDFs) in the large momentum effective theory (LaMET). With a proper canonical basis, we derive the analytical results for the three families of
Long-Bin Chen, Wei Wang, Ruilin Zhu
doaj +1 more source

