TO
1 - 25 of 7
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | Gondolo, Paolo | Fluid interpretation of Cardassian expansion | A fluid interpretation of Cardassian expansion is developed. Here, the Friedmann equation takes the form H2=g(ρM) where ρM contains only matter and radiation ~no vacuum!. The function g(ρM) returns to the usual 8πM /(3mpl 2 ) during the early history of the Universe, but takes a different form... | Cardassian expansion; Friedmann equation | 2003-09 |
| 2 |
 | Gondolo, Paolo | Improved constraints on supersymmetric dark matter from muon g-2 | The new measurement of the anomalous magnetic moment of the muon by the Brookhaven AGS experiment 821 again shows a discrepancy with the standard model value. We investigate the consequences of these new data for neutralino dark matter, updating and extending our previous work [E. A. Baltz and P. ... | Magnetic moment; Neutralinos | 2003-03 |
| 3 |
 | Gondolo, Paolo | Indirect detection of a subdominant density component of cold dark matter | We examine the detectability through indirect means of weakly interacting dark matter candidates that may constitute not all but only a subdominant component of galactic cold dark matter. We show that the possibility of indirect detection of neutralinos from their annihilations in the Earth and Su... | WIMP; Weakly interacting massive particles; Annihilations | 2003-01 |
| 4 |
 | DeTar, Carleton | Lattice calculation of 1-+ hybrid mesons with improved Kogut-Susskind fermions | We report on a lattice determination of the mass of the exotic 1-+ hybrid meson using an improved Kogut-Susskind action. Results from both quenched and dynamical quark simulations are presented. We also compare with earlier results using Wilson quarks at heavier quark masses. The results on lattice... | Staggered quarks; Kogut-Susskind fermions | 2003-10 |
| 5 |
 | Gondolo, Paolo | Measuring the prompt atmospheric neutrino flux with down-going muons in neutrino telescopes | In the TeV energy region and above, the uncertainty in the level of prompt atmospheric neutrinos would limit the search for diffuse astrophysical neutrinos. We suggest that neutrino telescopes may provide an empirical determination of the flux of prompt atmospheric electron and muon neutrinos by mea... | Neutrino telescopes; Prompt flux | 2003-01 |
| 6 |
 | Wu, Yong-Shi | Moyal representation of the string field star product in the presence of a B background | In this paper we show that in the presence of an antisymmetric tensor B background, Witten's star algebra for open string fields persists to possess the structure of a direct product of commuting Moyal pairs. The interplay between the noncommutativity due to three-string overlap and that due to the ... | String theory; Moyal pairs; Moyal structure; Noncommutativity | 2003-06 |
| 7 |
 | DeTar, Carleton | Topological susceptibility with the improved Asqtad action | Chiral perturbation theory predicts that in quantum chromodynamics light dynamical quarks suppress the topological (instanton) susceptibility.We investigate this suppression through direct numerical simulation using the Asqtad improved lattice fermion action. This action holds promise for carrying... | Chiral perturbation; Staggered fermions | 2003-12 |
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