Showing 2004 · hep-phShow all

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hep-ph2004

Heavy Quarkonium Physics

N. Brambilla, M. Krämer, R. Mussa +82

This report is the result of the collaboration and research effort of the Quarkonium Working Group over the last three years. It provides a comprehensive overview of the state of t…

hep-ph2004★ 18 cited

Quantization and High Energy Unitarity of 5D Orbifold Theories with Brane Kinetic Terms

Alexander Mück, Lars Nilse, Apostolos Pilaftsis +1

Five-dimensional field theories compactified on an S^1/Z_2 orbifold naturally include local brane kinetic terms at the orbifold fixed points at the tree as well as the quantum leve…

hep-ph2004★ 57 cited

Determining the regimes of cold and warm inflation in the susy hybrid model

Mar Bastero-Gil, Arjun Berera

The SUSY hybrid inflation model is found to dissipate radiation during the inflationary period. Analysis is made of parameter regimes in which these dissipative effects are signifi…

hep-ph2004★ 172 cited

Pair production of scalar leptoquarks at the LHC

M. Krämer, T. Plehn, M. Spira +1

Theoretical predictions for the production cross sections of leptoquarks at the CERN LHC are presented including higher-order QCD corrections. These corrections reduce the dependen…

hep-ph2004★ 408 cited

Physics Interplay of the LHC and the ILC

LC Study Group, G. Weiglein, T. Barklow +120

Physics at the Large Hadron Collider (LHC) and the International e+e- Linear Collider (ILC) will be complementary in many respects, as has been demonstrated at previous generations…

hep-ph2004★ 72 cited

A lattice determination of moments of unpolarised nucleon structure functions using improved Wilson fermions

M. Göckeler, R. Horsley, D. Pleiter +2

Within the framework of quenched lattice QCD and using O(a) improved Wilson fermions and non-perturbative renormalisation, a high statistics computation of low moments of the unpol…

hep-ph2004★ 137 cited

Measurement of SUSY masses via cascade decays for SPS 1a

B. K. Gjelsten, D. J. Miller, P. Osland

If R-parity conserving supersymmetry exists below the TeV-scale, new particles will be produced and decay in cascades at the LHC. The lightest supersymmetric particle will escape t…

hep-ph2004★ 43 cited

Determination of Light and Strange Quark Masses from Full Lattice QCD

M. Göckeler, R. Horsley, A. C. Irving +4

We compute the light and strange quark masses m_l = (m_u+m_d)/2 and m_s, respectively, in full lattice QCD with N_f=2 flavors of light dynamical quarks. The renormalization constan…

hep-ph2004★ 57 cited

The Neutralino Sector of the Next-to-Minimal Supersymmetric Standard Model

S. Y. Choi, D. J. Miller, P. M. Zerwas

The Next-to-Minimal Supersymmetric Standard Model (NMSSM) includes a Higgs iso-singlet superfield in addition to the two Higgs doublet superfields of the minimal extension. If the…

hep-ph2004★ 5 cited

Progress in the small x resummation of the singlet anomalous dimension

Guido Altarelli, Richard D. Ball, Stefano Forte

We summarize our recent results on the small x resummation of the singlet anomalous dimension. We recall the main features of our approach, and briefly describe some work in progre…

hep-ph2004★ 8 cited

Associated Higgs production with bottom quarks at hadron colliders

Michael Krämer

Higgs-boson production in association with bottom quarks is an important discovery channel for supersymmetric Higgs particles at the Tevatron and the LHC. We present higher-order Q…

hep-ph2004★ 24 cited

The Higgs Working Group: Summary Report 2003

K. A. Assamagan, M. Narain, A. Nikitenko +81

Theoretical progress in Higgs boson production and background processes is discussed with particular emphasis on QCD corrections at and beyond next-to-leading order as well as next…

hep-ph2004★ 56 cited

Dynamics of Interacting Scalar Fields in Expanding Space-Time

Arjun Berera, Rudnei O. Ramos

The effective equation of motion is derived for a scalar field interacting with other fields in a Friedman-Robertson-Walker background space-time. The dissipative behavior reflecte…

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…