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19932026
most citedGaia Data Release 2. Summary of the contents and survey properties

8.6k citations

Showing 2008 · hep-phShow all

14 papers · 2 filters

hep-ph2008★ 61 cited

Gravitino Dark Matter and the Cosmic Lithium Abundances

Sean Bailly, Karsten Jedamzik, Gilbert Moultaka

Supersymmetric extensions of the standard model of particle physics assuming the gravitino to be the lightest supersymmetric particle (LSP), and with the next-to-LSP decaying to th…

hep-ph2008★ 31 cited

Precision measurements, dark matter direct detection and LHC Higgs searches in a constrained NMSSM

G. Belanger, C. Hugonie, A. Pukhov

We reexamine the constrained version of the Next-to-Minimal Supersymmetric Standard Model with semi universal parameters at the GUT scale (CNMSSM). We include constraints from coll…

hep-ph2008★ 1 cited

Low-mass scalar production in scattering

G. Mennessier

We estimate the I=0 scalar meson widths, from and scattering data below 700 MeV using an improved analytic K-matrix model.

hep-ph2008★ 29 cited

Light scalar mesons in QCD

Stephan Narison

I present a mini-review of the masses and couplings of the bare (unmixed) light scalar mesons : from QCD spectral sum rules (…

hep-ph2008★ 50 cited

Radiative Upsilon decays and a light pseudoscalar Higgs in the NMSSM

Florian Domingo, Ulrich Ellwanger, Esteban Fullana +2

We study possible effects of a light CP-odd Higgs boson on radiative Upsilon decays in the Next-to-Minimal Supersymmetric Standard Model. Recent constraints from CLEO on radiative…

hep-ph2008★ 31 cited

|V_{cd}|, |V_{cs}| and f_{D_s} from (semi) leptonic -decays : signals of New Physics ?

Stephan Narison

We confront the recent improved measurements of the D_{(s)} (semi) leptonic decays with lattice QCD (LQCD) with n_f=3 flavours and QCD spectral sum rules (QSSR) predictions. D\toμν…

hep-ph2008★ 17 cited

Bottom-Up Reconstruction Scenarios for (un)constrained MSSM Parameters at the LHC

J. -L. Kneur, N. Sahoury

We consider some specific inverse problem or "bottom-up" reconstruction strategies at the LHC for both general and constrained MSSM parameters, starting from a plausibly limited se…

hep-ph2008★ 37 cited

A Fresh Look into the Neutron EDM and Magnetic Susceptibility

Stephan Narison

We reexamine the estimate of the neutron Electric Dipole Moment (NEDM) from chiral and QCD spectral sum rules (QSSR) approaches. In the former, we evaluate the pion mass correction…

hep-ph2008★ 61 cited

Glueball nature of the sigma/f_0(600) from pi-pi and gamma-gamma scatterings

G. Mennessier, S. Narison, W. Ochs

We estimate the I=0 scalar meson sigma/f_0(600) parameters from pi-pi and gamma-gamma scattering data below 700 MeV using an improved analytic K-matrix model. A fit of the hadronic…

hep-ph2008★ 34 cited

Stop-antistop and sbottom-antisbottom production at LHC: a one-loop search for model parameters dependence

M. Beccaria, G. Macorini, L. Panizzi +2

We have computed the one-loop electroweak expression of diagonal and non diagonal stop-antistop and sbottom-antisbottom production from initial state gluons at LHC. We have investi…

hep-ph2008★ 9 cited

Genuine SUSY signatures from $ug\to \tilde d \tchi_i^+$ and , at high energies

G. J. Gounaris, J. Layssac, F. M. Renard

We analyze the quark-gluon induced process $u g\to \tilde d\tchi_i^+$, including the one loop electroweak (EW) effects in the minimal supersymmetric model (MSSM). This process is d…

hep-ph2008★ 3 cited

Can one measure C-odd asymmetry in e+e- --> pi+pi-

J. Layssac, S. Narison

C-odd asymmetry can be studied from an accurate measurement of the angular distribution due to the interference between the S- and P-waves in e+e- --> pi+ pi- at order alpha^3. The…

hep-ph2008★ 29 cited

A complete one-loop calculation of electroweak supersymmetric effects in -channel single top production at LHC

M. Beccaria, C. M. Carloni Calame, G. Macorini +4

We have computed the complete one-loop electroweak effects in the MSSM for single top (and single antitop) production in the -channel at hadron colliders, generalizing a previou…

hep-ph2008★ 78 cited

Collider aspects of flavour physics at high Q

T. Lari, L. Pape, W. Porod +105

This review presents flavour related issues in the production and decays of heavy states at LHC, both from the experimental side and from the theoretical side. We review top quark…