Quark model and high-energy scattering
نویسندگان
چکیده
منابع مشابه
High-energy quark-quark scattering and the eikonal approximation
The high–energy quark–quark scattering amplitude is calculated first in the case of scalar QCD, using Fradkin’s approach to derive the scalar quark propagator in an external gluon field and computing it in the eikonal approximation. The results are then extended to the case of “real” (i.e., fermion) QCD. The high–energy quark–quark scattering amplitude turns out to be described by the expectati...
متن کاملHigh-energy quark-antiquark elastic scattering with mesonic exchange.
We studied the high energy elastic scattering of quark anti-quark with an exchange of a mesonic state in the t channel with −t/Λ 2 ≫ 1. Both the normalization factor and the Regge trajectory can be calculated in PQCD in cases of fixed (non-running) and running coupling constant. The dependence of the Regge trajectory on the coupling constant is highly non-linear and the trajectory is of order o...
متن کاملA remark on the high–energy quark–quark scattering and the eikonal approximation
In this paper we calculate the high–energy quark–quark scattering amplitude, first in the case of scalar QCD, using Fradkin’s approach to derive the scalar quark propagator in an external gluon field and computing it in the eikonal approximation. (This approach was also recently used by Fabbrichesi, Pettorino, Veneziano and Vilkovisky to study the four–dimensional Planckian–energy scattering in...
متن کاملRemark on high-energy quark-quark scattering and the eikonal approximation.
The high–energy quark–quark scattering amplitude is calculated first in the case of scalar QCD, using Fradkin’s approach to derive the scalar quark propagator in an external gluon field and computing it in the eikonal approximation. The results are then extended to the case of “real” (i.e., fermion) QCD. The high–energy quark–quark scattering amplitude turns out to be described by the expectati...
متن کاملThe high–energy quark–quark scattering: from Minkowskian to Euclidean theory
In this paper we consider some analytic properties of the high–energy quark–quark scattering amplitude, which, as is well known, can be described by the expectation value of two lightlike Wilson lines, running along the classical trajectories of the two colliding particles. We shall prove that the expectation value of two infinite Wilson lines, forming a certain hyperbolic angle in Minkowski sp...
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: Il Nuovo Cimento A Series 10
سال: 1966
ISSN: 0369-3546,1826-9869
DOI: 10.1007/bf02720548