Showing 2004 · hep-phShow all

38 papers · 2 filters

hep-ph2004★ 7 cited

Relativistically invariant analysis of polarization effects in exclusive deuteron electrodisintegration process

G. I. Gakh, A. P. Rekalo, Egle Tomasi-Gustafsson

A general formalism for the calculation of the differential cross section and polarization observables, for the process of deuteron electrodisintegration, is developed in the frame…

hep-ph2004★ 85 cited

Twistor-Inspired Construction of Electroweak Vector Boson Currents

Zvi Bern, Darren Forde, David A. Kosower +1

We present an extension of the twistor-motivated MHV vertices and accompanying rules presented by Cachazo, Svrvcek and Witten to the construction of vector-boson currents coupling…

hep-ph2004★ 139 cited

A Langevin equation for high energy evolution with pomeron loops

E. Iancu, D. N. Triantafyllopoulos

We show that the Balitsky-JIMWLK equations proposed to describe non-linear evolution in QCD at high energy fail to include the effects of fluctuations in the gluon number, and thus…

hep-ph2004★ 21 cited

Confronting next-leading BFKL kernels with proton structure function data

R. Peschanski, C. Royon, L. Schoeffel

We propose a phenomenological study of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) approach applied to the data on the proton structure function F_2 measured at HERA in the small-x_{B…

hep-ph2004★ 4 cited

Charged Lepton Flavour and CP Violations: Theoretical Impact of Present and Future Experiments

I. Masina, C. A. Savoy

We shortly review and emphasize how l_j -> l_i gamma experiments and the searches for lepton e.d.m. are constraining New Physics model building. They are pure signals of new phenom…

hep-ph2004★ 1 cited

Color Glass Condensate in QCD at High Energy

Kazunori Itakura

I give a brief review about the color glass condensate, which is the universal form of hadrons and nuclei at high energies.

hep-ph2004★ 65 cited

Quark-antiquark production from classical fields in heavy ion collisions: 1+1 dimensions

F. Gelis, K. Kajantie, T. Lappi

Classical color fields produced by the small-x wave functions of colliding ultrarelativistic nuclei have been numerically computed. We set up the framework for computing the produc…

hep-ph2004★ 49 cited

A QCD dipole formalism for forward-gluon production

Cyrille Marquet

We derive inclusive and diffractive forward-gluon production in the scattering of a dipole off an arbitrary target in the high-energy eikonal approximation, suitable to…

hep-ph2004★ 10 cited

Saturation and forward jets at HERA

C. Marquet, R. Peschanski, C. Royon

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 measu…

hep-ph2004★ 29 cited

Sensitivity to the Standard Model Higgs Boson in Exclusive Double Diffraction

M. Boonekamp, R. Peschanski, C. Royon

We use a Monte Carlo implementation of recently developed models of double diffraction to assess the sensitivity of the LHC experiments to Standard Model Higgs bosons produced in e…

hep-ph2004★ 9 cited

Decisive test for the Pomeron at Tevatron

Alexander Kupco, Robert Peschanski, Christophe Royon

We propose a new measurement to be performed at the Tevatron which can be decisive to distinguish between Pomeron-based and soft color interaction models of hard diffractive scatte…

hep-ph2004

Saturation and Traveling waves

R. Peschanski

High parton density effects with energy obey non-linear QCD evolution equations for which exact solutions are not known. The mathematical class to which the non-linear Balitsky-Kov…

hep-ph2004★ 4 cited

Global QCD fit from to GeV with Regge-compatible initial condition

Gregory Soyez

In this paper I show that it is possible to use Regge theory to constrain the initial parton distribution functions of a global DGLAP fit. In this approach, both quarks and gluons…

hep-ph2004★ 1 cited

Two-loop Splitting Amplitudes

Z. Bern, L. J. Dixon, D. A. Kosower

Splitting amplitudes govern the behavior of scattering amplitudes at the momenta of external legs become collinear. In this talk we outline the calculation of two-loop splitting am…

hep-ph2004★ 5 cited

Light Mesons on the Light Front

K. Naito, S. Maedan, K. Itakura

We study the properties of light mesons in the scalar, pseudo-scalar, and vector channels within the light-front quantization, by using the (one flavor) Nambu--Jona-Lasinio model w…

hep-ph2004★ 67 cited

Instantons in Quantum Mechanics and Resurgent Expansions

Ulrich D. Jentschura, Jean Zinn-Justin

Certain quantum mechanical potentials give rise to a vanishing perturbation series for at least one energy level (which as we here assume is the ground state), but the true ground-…

hep-ph2004★ 47 cited

The space-time structure of hard scattering processes

J. M. Laget

Recent studies of exclusive electroproduction of vector mesons at JLab make it possible for the first time to play with two independent hard scales: the virtuality Q^2 of the photo…

hep-ph2004★ 146 cited

Phenomenological constraints on broken R parity symmetry in supersymmetry models

Marc Chemtob

The R parity odd renormalizable Yukawa interactions of quarks and leptons with the scalar superpartners have the ability to violate the baryon and lepton numbers, change the hadron…

hep-ph2004★ 1k cited

R-parity violating supersymmetry

R. Barbier, C. Berat, M. Besancon +8

Theoretical and phenomenological implications of R-parity violation in supersymmetric theories are discussed in the context of particle physics and cosmology. Fundamental aspects i…

hep-ph2004★ 1 cited

-parity of charm and strange particles in electroproduction processes, in collinear regime

Michail P. Rekalo, Egle Tomasi-Gustafsson

We show that definite polarization observables for the simplest electroproduction processes, , or -hyperon, -pentaquark) an…

hep-ph2004★ 26 cited

Searching Evidence for the Color Glass Condensate at RHIC

Jean-Paul Blaizot, François Gelis

This contribution discusses the phenomenon of parton saturation, the color glass picture of hadronic wavefuntions, and their relevance in the early stages of nucleus-nucleus collis…

hep-ph2004★ 5 cited

Kaon-Soliton Bound State Approach to the Pentaquark States

Byung-Yoon Park, Mannque Rho, Dong-Pil Min

We show that in hidden local symmetry theory with the vector manifestation (VM), a K^+ can be bound to skyrmion to give the Theta^+ pentaquark with spin 1/2 and even parity which i…

hep-ph2004★ 41 cited

Onset of asymptotic scaling in deuteron photodisintegration

P. Rossi

We investigate the transition from the nucleon-meson to quark-gluon description of the strong interaction using the photon energy dependence of the differential cross sec…

hep-ph2004★ 54 cited

Beam normal spin asymmetry in elastic lepton-nucleon scattering

M. Gorchtein, P. A. M. Guichon, M. Vanderhaeghen

We discuss the two-photon exchange contribution to observables which involve lepton helicity flip in elastic lepton-nucleon scattering. This contribution is accessed through the sp…