CEA Paris-Saclay

output

19912026

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 1995 · hep-phShow all

12 papers · 2 filters

hep-ph1995★ 1 cited

Hard Exclusive Scattering in QCD

Thierry Gousset, Bernard Pire

We review the theory of hard exclusive scattering in Quantum Chromodynamics. After recalling the classical counting rules which describe the leading scale dependence of form factor…

hep-ph1995★ 20 cited

Approximate spectral functions in thermal field theory

P. A. Henning, E. Poliatchenko, T. Schilling +1

Causality requires, that the (anti-) commutator of two interacting field operators vanishes for space-like coordinate differences. This implies, that the Fourier transform of the s…

hep-ph1995★ 122 cited

Soft scalar masses in supergravity with horizontal U(1)_X gauge symmetry

E. Dudas, S. Pokorski, C. A. Savoy

In supergravity with modular invariance and horizontal $U (1)_{X}$ gauge symmetry there is a relation between modular weights and $U (1)_{X}$ charges. The soft scalar masses are then str…

hep-ph1995★ 21 cited

Non-perturbative aspects of screening phenomena in abelian and non abelian gauge theories

J. -P. Blaizot, E. Iancu

When computed to one-loop order in resummed perturbation theory, the non-abelian Debye mass appears to be logarithmically sensitive to the magnetic scale $g^{2} T$ . More generally, we…

hep-ph1995★ 12 cited

INITIAL-STATE COLOUR DIPOLE EMISSION ASSOCIATED WITH QCD POMERON EXCHANGE

A. Bialas, R. Peschanski

The initial-state radiation of soft colour dipoles produced together with a single QCD Pomeron exchange (BFKL) in onium-onium scattering is calculated in the framework of Mueller's…

hep-ph1995★ 186 cited

Yukawa matrices from a spontaneously broken abelian symmetry

E. Dudas, S. Pokorski, C. A. Savoy

We classify all the phenomenologically viable fermion mass matrices coming from a spontaneously broken abelian symmetry $U (1)_{X},$ with one and two additional chiral fields of opp…

hep-ph1995★ 28 cited

Hadron Helicity Violation in Exclusive Processes: Quantitative Calculations in Leading Order QCD

T. Gousset, B. Pire, J. P. Ralston

We study a new mechanism for hadronic helicity flip in high energy hard exclusive reactions. The mechanism proceeds in the limit of perfect chiral symmetry, namely without any need…

hep-ph1995★ 97 cited

On the Universality of the Leading, $1/ Q$ Power Corrections in QCD

R. Akhoury, V. I. Zakharov

We discuss $1/ Q$ corrections to hard processes in QCD where $Q$ is a large mass parameter like the total energy in $e^{+} e^{-}$ annihilation. The main problem we address ourselves to i…

hep-ph1995★ 32 cited

Flavour Changing Neutral Current Effects From Flavour Dependent Supergravity Couplings

Ph. Brax, C. A. Savoy

We investigate the impact on low energy flavour mixing phenomena of the renormalisation group running of parameters in supersymmetric theories. We have explicitly chosen flavour de…

hep-ph1995★ 104 cited

HIGGS PHENOMENOLOGY OF THE SUPERSYMMETRIC MODEL WITH A GAUGE SINGLET

U. Ellwanger, M. Rausch de Traubenberg, C. A. Savoy

We discuss the Higgs sector of the supersymmetric standard model extended by a gauge singlet for the range of parameters, which is compatible with universal soft supersymmetry brea…

hep-ph1995

CHIRAL SYMMETRY RESTORATION AS THE GEORGI VECTOR LIMIT

Mannque Rho

I discuss recent work done with Gerry Brown on chiral phase transition at high temperature and/or density described in terms of Georgi's vector limit. The notion of ``mended symmet…