Angular dependence of the radiative gluon spectrum
نویسندگان
چکیده
منابع مشابه
The Angular Dependence Of
In all already performed (E89-009, E94-107, E01-011) or approved (E05-015) Jlab hypernuclear electroproduction experiments the K mesons are detected at very small (few degrees) laboratory scattering angels (measured with respect to virtual photon momentum). This region of kaon scattering angles is not covered, unfortunately, by recent photoand electro-production data on the elementary productio...
متن کاملAngular Ordering in Gluon Radiation
The assumption of angular ordering in gluon radiation is essential to obtain quantitative results concerning gluonic behaviors. In order to prove the validity of this assumption, we have applied our momentum space flux-tube formalism to check out the angular dependences of gluon radiation. We have calculated the probability amplitudes to get new gluon, and have found that the new gluon is gener...
متن کاملResummation of Perturbatively Enhanced Gluon Radiative Corrections
By remaining strictly within the confines of QCD, i.e., without invoking the parton model or any other exogenous element, we identify and resum perturbatively to leading order, along with a correction term, enhanced radiative gluon contributions to the Drell-Yan type (qq̄ pair annihilation) and deepinelastic-scattering type (eq → eq + X) cross-sections. The key feature of the adopted approach is...
متن کاملProbing the Orbital Angular momentum through the Polarized Gluon Asymmetry
The orbital angular momentum is one of the least understood of the spin characteristics of a proton. There are no direct ways to model Lz. However, the Jz = 1 2 sum rule includes an angular momentum component and can provide indirect access to properties of Lz. One of the other unknowns in the sum rule is the gluon polarization, ∆G. We can define the gluon spin asymmetry in a proton as A(x,Q2) ...
متن کاملThe Glueball Spectrum from Constituent Gluon Models
We present a model for odd-C (negative charge parity) glueballs with three constituent gluons. The model is an extension of a previous study of two-gluon glueballs. We show that, even if spin1 gluons seem to reproduce properly the lattice QCD spectrum for C = + states, the extension for C = − cannot match with the lattice results. Resorting to the helicity formalism, we show how transverse gluo...
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 C
سال: 2001
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.64.057902