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7 papers · 2 filters
Solving the Cosmic Lithium Problems with Gravitino Dark Matter in the CMSSM
Karsten Jedamzik, Ki-Young Choi, Leszek Roszkowski +1
Standard Big Bang nucleosynthesis at baryonic density as inferred by WMAP implies a primordial Li7 abundance factor of two to three larger than that inferred by observations of low…
Gravitino Dark Matter in the CMSSM With Improved Constraints from BBN
David G. Cerdeno, Ki-Young Choi, Karsten Jedamzik +2
In the framework of the Constrained MSSM we re--examine the gravitino as the lightest superpartner and a candidate for cold dark matter in the Universe. Unlike in other recent stud…
Weak Interaction Sum Rules for Polarized top-antitop Production at LHC
M. Beccaria, F. M. Renard, C. Verzegnassi
We consider two polarization asymmetries in the process of top-antitop production at LHC. We show that the theoretical predictions for these two quantities, at the strong and elect…
Gravitino dark matter in gauge mediated supersymmetry breaking
Karsten Jedamzik, Martin Lemoine, Gilbert Moultaka
This paper investigates the parameter space of theories with gauge mediated supersymmetry breaking leading to gravitino (cold) dark matter with mass m_{3/2}= 1keV - 10MeV. We pay p…
The energy dependence of the saturation scale in DIS at low x
Masaaki Kuroda, Dieter Schildknecht
Consistency of the previously suggested color-dipole representation of deep-inelastic scattering (DIS_) and vector-meson production at low x with DGLAP evolution allows one to pred…
Natural gravitino dark matter in SO(10) gauge mediated supersymmetry breaking
Martin Lemoine, Gilbert Moultaka, Karsten Jedamzik
It is shown that gravitinos with mass m_{3/2} ~ 0.1-1 MeV may provide suitable cold dark matter candidates in scenarios of gauge mediated supersymmetry breaking (GMSB) under SO(10)…