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27 papers · 1 filter
Perturbative renormalization in parton distribution functions using improved actions
M. Ioannou, H. Panagopoulos
We calculate the 1-loop renormalization of a set of extended fermionic bilinears which form a basis corresponding to moments of the parton distribution functions. We use the overla…
Phenomenological study of the atypical heavy flavor production observed at the Fermilab Tevatron
G. Apollinari, M. Barone, I. Fiori +5
We address known discrepancies between the heavy flavor properties of jets produced at the Tevatron collider and the prediction of conventional-QCD simulations. In this study, we e…
A Gentle (without Chopping) Approach to the Full Kostant-Toda Lattice
Pantelis A. Damianou, Franco Magri
In this paper we propose a new algorithm for obtaining the rational integrals of the full Kostant-Toda lattice. This new approach is based on a reduction of a bi-Hamiltonian system…
Noncommutative geometry, Quantum effects and DBI-scaling in the collapse of D0-D2 bound states
C. Papageorgakis, S. Ramgoolam, N. Toumbas
We study fluctuations of time-dependent fuzzy two-sphere solutions of the non-abelian DBI action of D0-branes, describing a bound state of a spherical D2-brane with N D0-branes. Th…
Surface and interface study of pulsed-laser-deposited off-stoichiometric NiMnSb thin films on Si(100) substrate
S. Rai, M. K. Tiwari, G. S. Lodha +9
We report a detailed study of surface and interface properties of pulsed-laser deposited NiMnSb films on Si (100) substrate as a function of film thickness. As the thickness of fil…
Negative Giant Longitudinal Magnetoresistance in NiMnSb/InSb: An interface effect
S. Gardelis, J. Androulakis, Z. Viskadourakis +2
We report on the electrical and magneto-transport properties of the contact formed between polycrystalline NiMnSb thin films grown using pulsed laser deposition (PLD) and n-type de…