Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Robert B. Peschanski"'
Publikováno v:
Physics Letters B. 599(3-4):236-246
We analyse forward-jet production at HERA in the framework of the Golec-Biernat and Wusthoff saturation models. We obtain a good description of the forward jet cross sections measured by the H1 and ZEUS collaborations in the two-hard-scale region kT
Autor:
C. Marquet, Robert B. Peschanski
Publikováno v:
Physics Letters B. 587(3-4):201-210
We extend the saturation models a la Golec-Biernat and Wusthoff to cross-sections of hard processes initiated by virtual-gluon probes separated by large rapidity intervals at hadron colliders. We derive their analytic expressions and apply them to ph
Publikováno v:
Nuclear Physics B. 649:312-326
We ask the question whether the quark and gluon distributions in the Pomeron obtained from QCD fits to hard diffraction processes at HERA can be dynamically generated from a state made of ``valence-like'' gluons and sea quarks as input. By a method c
Publikováno v:
Physics Letters B. 550(1-2):93-98
We study Higgs boson production via Double Pomeron Exchange allowing for the presence of Pomeron remnants. We estimate the number of events produced at the LHC collider, as a function of the Higgs boson mass and its decay channel. The model which suc
Autor:
Robert B. Peschanski, R. A. Janik
Publikováno v:
Nuclear Physics B, Vol 586, Iss 1, Pp 163-182 (2000)
We address the problem of computing scattering amplitudes related to the correlation function of two Wilson lines and/or loops elongated along light-cone directions in strongly coupled gauge theories. Using the AdS/CFT correspondence in the classical
Publikováno v:
The European Physical Journal C. 8:643-647
Using the QCD dipole picture of BFKL dynamics, the quasi elastic component of the diffractive gamma*-dipole cross-section, dominating at small M^2/Q^2, is calculated.
Comment: 10 pages, LATEX file, no figure
Comment: 10 pages, LATEX file, no figure
Publikováno v:
Physical Review D. 57:R6585-R6589
Using the recent solution of the triple Pomeron coupling in the QCD dipole picture as a closed string amplitude with six legs, its analytical form in terms of hypergeometric functions and numerical value are derived.
Autor:
H. Navelet, Robert B. Peschanski
Publikováno v:
Nuclear Physics B. 507:353-366
The conformal invariance properties of the QCD Pomeron in the transverse plane allow us to give an explicit analytical expression for the solution of the BFKL equations both in the transverse coordinate and momentum spaces. This result is obtained fr
Autor:
A. Bialas, Robert B. Peschanski
Publikováno v:
Physics Letters B. 387:405-410
The contribution to diffraction dissociation of virtual photons due to quasi-elastic scattering of the $q$-$\bar q$ component is calculated in the framework of the QCD dipole picture. Both longitudinal and transverse components of the cross-section a
Autor:
Carlos A. Savoy, Robert B. Peschanski
Publikováno v:
Physics Letters B. 360:26-34
Gaugino condensation in the hidden sector of supergravity models is described within a Nambu-Jona-Lasinio type of approach by minimization of a one-loop scalar potential. The essential ingredients of the mechanism are auxiliary superfields whose v.e.