772 research outputs found
CGC/saturation approach for soft interactions at high energy: inclusive production
In this letter we demonstrate that our dipole model is successful in
describing the inclusive production within the same framework as diffractive
physics. We believe that this achievement stems from the fact that our approach
incorporates the positive features of the Reggeon approach and CGC/saturation
effective theory, for high energy QCComment: 8 pages, 6 figures in.eps file
Long range rapidity correlations in soft interaction at high energies
In this paper we take the next step (following the successful description of
inclusive hadron production) in describing the structure of the bias events
without the aid of Monte Carlo codes. Two new results are presented :(i) a
method for calculating the two particle correlation functions in the
BFKLPomeron calculus in zero transverse dimension;and (ii) an estimation of the
values of these correlations in a model of soft interactions. Comparison with
the multiplicity data at the LHC is given.Comment: 23pp. 13 figures in eps.file
CGC/saturation approach for high energy soft interactions: `soft' Pomeron structure and in hadron and nucleus collisions from Bose-Einstein correlation
In the framework of our model of soft interactions at high energy based on
CGC/saturation approach,we show that Bose-Einstein correlations of identical
gluons lead to large values of . We demonstrate how three dimensional
scales of high energy interactions: hadron radius, typical size of the wave
function in diffractive production of small masses (size of the constituent
quark), and the saturation momentum, influence the values of BE correlations,
and in particular, the values of . Our calculation shows that the
structure of the `dressed' Pomeron leads to values of which are close to
experimental values for proton-proton scattering, 20\% smaller than the
observed values for proton-lead collisions, and close to lead-lead collisions
for 0-10\% centrality. Bearing this result in mind, we conclude that it is
premature to consider, that the appearance of long range rapidity azimuthal
correlations are due only to the hydrodynamical behaviour of the quark-gluon
plasma.Comment: 26pp. 25 figures in .eps file
CGC/saturation approach for soft interactions at high energy: a two channel model
In this paper we continue the development of a model for strong interactions
at high energy, based on two ingredients: CGC/saturation approach and the BFKL
Pomeron. In our approach, the unknown mechanism of confinement of quarks and
gluons, is characterized by several numerical parameters, which are extracted
from the experimental data. We demonstrate that the two channel model,
successfully describes the experimental data, including both the value of the
elastic slope and the energy behavior of the single diffraction cross section.
We show that the disagreement with experimental data of our previous single
channel eikonal model [6] stems from the simplified approach used for the
hadron structure, and is not related to our principal theoretical input, based
on the CGC/saturation approach.Comment: 20 pp., 20 figure in eps file
CGC/saturation approach for soft interactions at high energy: long range rapidity correlations
In this paper we continue our program to build a model for high energy soft
interactions, that is based on the CGC/saturation approach.The main result of
this paper is that we have discovered a mechanism that leads to large long
range rapidity correlations, and results in large values of the correlation
function R\Lb y_1,y_2\Rb \,\geq \,1, which is independent of and . Such behaviour of the correlation function, provides strong support for
the idea, that at high energies the system of partons that is produced, is not
only dense, but also has strong attractive forces acting between the partons.Comment: 22 pages and 13 figures in eps file
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